diff options
Diffstat (limited to 'arch/m68k/platform')
55 files changed, 2365 insertions, 1547 deletions
diff --git a/arch/m68k/platform/68000/Makefile b/arch/m68k/platform/68000/Makefile new file mode 100644 index 00000000000..1eab70c7194 --- /dev/null +++ b/arch/m68k/platform/68000/Makefile @@ -0,0 +1,18 @@ +################################################## +# +# Makefile for 68000 core based cpus +# +# 2012.10.21, Luis Alves <ljalvs@gmail.com> +# Merged all 68000 based cpu's config +# files into a single directory. +# + +# 68328, 68EZ328, 68VZ328 + +obj-y += entry.o ints.o timers.o +obj-$(CONFIG_M68328) += m68328.o +obj-$(CONFIG_M68EZ328) += m68EZ328.o +obj-$(CONFIG_M68VZ328) += m68VZ328.o +obj-$(CONFIG_ROM) += romvec.o + +extra-y := head.o diff --git a/arch/m68k/platform/68VZ328/bootlogo.h b/arch/m68k/platform/68000/bootlogo-vz.h index b38e2b25514..b38e2b25514 100644 --- a/arch/m68k/platform/68VZ328/bootlogo.h +++ b/arch/m68k/platform/68000/bootlogo-vz.h diff --git a/arch/m68k/platform/68328/bootlogo.h b/arch/m68k/platform/68000/bootlogo.h index b896c933faf..b896c933faf 100644 --- a/arch/m68k/platform/68328/bootlogo.h +++ b/arch/m68k/platform/68000/bootlogo.h diff --git a/arch/m68k/platform/68328/entry.S b/arch/m68k/platform/68000/entry.S index 7f91c2fde50..23ac054c6e1 100644 --- a/arch/m68k/platform/68328/entry.S +++ b/arch/m68k/platform/68000/entry.S @@ -27,7 +27,6 @@ .globl ret_from_exception .globl ret_from_signal .globl sys_call_table -.globl ret_from_interrupt .globl bad_interrupt .globl inthandler1 .globl inthandler2 @@ -137,7 +136,7 @@ inthandler1: movel #65,%sp@- /* put vector # on stack*/ jbsr process_int /* process the IRQ*/ 3: addql #8,%sp /* pop parameters off stack*/ - bra ret_from_interrupt + bra ret_from_exception inthandler2: SAVE_ALL_INT @@ -148,7 +147,7 @@ inthandler2: movel #66,%sp@- /* put vector # on stack*/ jbsr process_int /* process the IRQ*/ 3: addql #8,%sp /* pop parameters off stack*/ - bra ret_from_interrupt + bra ret_from_exception inthandler3: SAVE_ALL_INT @@ -159,7 +158,7 @@ inthandler3: movel #67,%sp@- /* put vector # on stack*/ jbsr process_int /* process the IRQ*/ 3: addql #8,%sp /* pop parameters off stack*/ - bra ret_from_interrupt + bra ret_from_exception inthandler4: SAVE_ALL_INT @@ -170,7 +169,7 @@ inthandler4: movel #68,%sp@- /* put vector # on stack*/ jbsr process_int /* process the IRQ*/ 3: addql #8,%sp /* pop parameters off stack*/ - bra ret_from_interrupt + bra ret_from_exception inthandler5: SAVE_ALL_INT @@ -181,7 +180,7 @@ inthandler5: movel #69,%sp@- /* put vector # on stack*/ jbsr process_int /* process the IRQ*/ 3: addql #8,%sp /* pop parameters off stack*/ - bra ret_from_interrupt + bra ret_from_exception inthandler6: SAVE_ALL_INT @@ -192,7 +191,7 @@ inthandler6: movel #70,%sp@- /* put vector # on stack*/ jbsr process_int /* process the IRQ*/ 3: addql #8,%sp /* pop parameters off stack*/ - bra ret_from_interrupt + bra ret_from_exception inthandler7: SAVE_ALL_INT @@ -203,7 +202,7 @@ inthandler7: movel #71,%sp@- /* put vector # on stack*/ jbsr process_int /* process the IRQ*/ 3: addql #8,%sp /* pop parameters off stack*/ - bra ret_from_interrupt + bra ret_from_exception inthandler: SAVE_ALL_INT @@ -214,23 +213,7 @@ inthandler: movel %d0,%sp@- /* put vector # on stack*/ jbsr process_int /* process the IRQ*/ 3: addql #8,%sp /* pop parameters off stack*/ - bra ret_from_interrupt - -ret_from_interrupt: - jeq 1f -2: - RESTORE_ALL -1: - moveb %sp@(PT_OFF_SR), %d0 - and #7, %d0 - jhi 2b - - /* check if we need to do software interrupts */ - jeq ret_from_exception - - pea ret_from_exception - jra do_softirq - + bra ret_from_exception /* * Handler for uninitialized and spurious interrupts. diff --git a/arch/m68k/platform/68000/head.S b/arch/m68k/platform/68000/head.S new file mode 100644 index 00000000000..536ef9616da --- /dev/null +++ b/arch/m68k/platform/68000/head.S @@ -0,0 +1,240 @@ +/* + * head.S - Common startup code for 68000 core based CPU's + * + * 2012.10.21, Luis Alves <ljalvs@gmail.com>, Single head.S file for all + * 68000 core based CPU's. Based on the sources from: + * Coldfire by Greg Ungerer <gerg@snapgear.com> + * 68328 by D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>, + * Kenneth Albanowski <kjahds@kjahds.com>, + * The Silver Hammer Group, Ltd. + * + */ + +#include <linux/linkage.h> +#include <linux/init.h> +#include <asm/asm-offsets.h> +#include <asm/thread_info.h> + + +/***************************************************************************** + * UCSIMM and UCDIMM use CONFIG_MEMORY_RESERVE to reserve some RAM + *****************************************************************************/ +#ifdef CONFIG_MEMORY_RESERVE +#define RAMEND (CONFIG_RAMBASE+CONFIG_RAMSIZE)-(CONFIG_MEMORY_RESERVE*0x100000) +#else +#define RAMEND (CONFIG_RAMBASE+CONFIG_RAMSIZE) +#endif +/*****************************************************************************/ + +.global _start +.global _rambase +.global _ramvec +.global _ramstart +.global _ramend + +#if defined(CONFIG_PILOT) || defined(CONFIG_INIT_LCD) +.global bootlogo_bits +#endif + +/* Defining DEBUG_HEAD_CODE, serial port in 68x328 is inited */ +/* #define DEBUG_HEAD_CODE */ +#undef DEBUG_HEAD_CODE + +.data + +/***************************************************************************** + * RAM setup pointers. Used by the kernel to determine RAM location and size. + *****************************************************************************/ + +_rambase: + .long 0 +_ramvec: + .long 0 +_ramstart: + .long 0 +_ramend: + .long 0 + +__HEAD + +/***************************************************************************** + * Entry point, where all begins! + *****************************************************************************/ + +_start: + +/* Pilot need this specific signature at the start of ROM */ +#ifdef CONFIG_PILOT + .byte 0x4e, 0xfa, 0x00, 0x0a /* bra opcode (jmp 10 bytes) */ + .byte 'b', 'o', 'o', 't' + .word 10000 + nop + moveq #0, %d0 + movew %d0, 0xfffff618 /* Watchdog off */ + movel #0x00011f07, 0xfffff114 /* CS A1 Mask */ +#endif /* CONFIG_PILOT */ + + movew #0x2700, %sr /* disable all interrupts */ + +/***************************************************************************** + * Setup PLL and wait for it to settle (in 68x328 cpu's). + * Also, if enabled, init serial port. + *****************************************************************************/ +#if defined(CONFIG_M68328) || \ + defined(CONFIG_M68EZ328) || \ + defined(CONFIG_M68VZ328) + +/* Serial port setup. Should only be needed if debugging this startup code. */ +#ifdef DEBUG_HEAD_CODE + movew #0x0800, 0xfffff906 /* Ignore CTS */ + movew #0x010b, 0xfffff902 /* BAUD to 9600 */ + movew #0xe100, 0xfffff900 /* enable */ +#endif /* DEBUG_HEAD */ + +#ifdef CONFIG_PILOT + movew #0x2410, 0xfffff200 /* PLLCR */ +#else + movew #0x2400, 0xfffff200 /* PLLCR */ +#endif + movew #0x0123, 0xfffff202 /* PLLFSR */ + moveq #0, %d0 + movew #16384, %d0 /* PLL settle wait loop */ +_pll_settle: + subw #1, %d0 + bne _pll_settle +#endif /* CONFIG_M68x328 */ + + +/***************************************************************************** + * If running kernel from ROM some specific initialization has to be done. + * (Assuming that everything is already init'ed when running from RAM) + *****************************************************************************/ +#ifdef CONFIG_ROMKERNEL + +/***************************************************************************** + * Init chip registers (uCsimm specific) + *****************************************************************************/ +#ifdef CONFIG_UCSIMM + moveb #0x00, 0xfffffb0b /* Watchdog off */ + moveb #0x10, 0xfffff000 /* SCR */ + moveb #0x00, 0xfffff40b /* enable chip select */ + moveb #0x00, 0xfffff423 /* enable /DWE */ + moveb #0x08, 0xfffffd0d /* disable hardmap */ + moveb #0x07, 0xfffffd0e /* level 7 interrupt clear */ + movew #0x8600, 0xfffff100 /* FLASH at 0x10c00000 */ + movew #0x018b, 0xfffff110 /* 2Meg, enable, 0ws */ + movew #0x8f00, 0xfffffc00 /* DRAM configuration */ + movew #0x9667, 0xfffffc02 /* DRAM control */ + movew #0x0000, 0xfffff106 /* DRAM at 0x00000000 */ + movew #0x068f, 0xfffff116 /* 8Meg, enable, 0ws */ + moveb #0x40, 0xfffff300 /* IVR */ + movel #0x007FFFFF, %d0 /* IMR */ + movel %d0, 0xfffff304 + moveb 0xfffff42b, %d0 + andb #0xe0, %d0 + moveb %d0, 0xfffff42b +#endif + +/***************************************************************************** + * Init LCD controller. + * (Assuming that LCD controller is already init'ed when running from RAM) + *****************************************************************************/ +#ifdef CONFIG_INIT_LCD +#ifdef CONFIG_PILOT + moveb #0, 0xfffffA27 /* LCKCON */ + movel #_start, 0xfffffA00 /* LSSA */ + moveb #0xa, 0xfffffA05 /* LVPW */ + movew #0x9f, 0xFFFFFa08 /* LXMAX */ + movew #0x9f, 0xFFFFFa0a /* LYMAX */ + moveb #9, 0xfffffa29 /* LBAR */ + moveb #0, 0xfffffa25 /* LPXCD */ + moveb #0x04, 0xFFFFFa20 /* LPICF */ + moveb #0x58, 0xfffffA27 /* LCKCON */ + moveb #0x85, 0xfffff429 /* PFDATA */ + moveb #0xd8, 0xfffffA27 /* LCKCON */ + moveb #0xc5, 0xfffff429 /* PFDATA */ + moveb #0xd5, 0xfffff429 /* PFDATA */ + movel #bootlogo_bits, 0xFFFFFA00 /* LSSA */ + moveb #10, 0xFFFFFA05 /* LVPW */ + movew #160, 0xFFFFFA08 /* LXMAX */ + movew #160, 0xFFFFFA0A /* LYMAX */ +#else /* CONFIG_PILOT */ + movel #bootlogo_bits, 0xfffffA00 /* LSSA */ + moveb #0x28, 0xfffffA05 /* LVPW */ + movew #0x280, 0xFFFFFa08 /* LXMAX */ + movew #0x1df, 0xFFFFFa0a /* LYMAX */ + moveb #0, 0xfffffa29 /* LBAR */ + moveb #0, 0xfffffa25 /* LPXCD */ + moveb #0x08, 0xFFFFFa20 /* LPICF */ + moveb #0x01, 0xFFFFFA21 /* -ve pol */ + moveb #0x81, 0xfffffA27 /* LCKCON */ + movew #0xff00, 0xfffff412 /* LCD pins */ +#endif /* CONFIG_PILOT */ +#endif /* CONFIG_INIT_LCD */ + +/***************************************************************************** + * Kernel is running from FLASH/ROM (XIP) + * Copy init text & data to RAM + *****************************************************************************/ + moveal #_etext, %a0 + moveal #_sdata, %a1 + moveal #__bss_start, %a2 +_copy_initmem: + movel %a0@+, %a1@+ + cmpal %a1, %a2 + bhi _copy_initmem +#endif /* CONFIG_ROMKERNEL */ + +/***************************************************************************** + * Setup basic memory information for kernel + *****************************************************************************/ + movel #CONFIG_VECTORBASE,_ramvec /* set vector base location */ + movel #CONFIG_RAMBASE,_rambase /* set the base of RAM */ + movel #RAMEND, _ramend /* set end ram addr */ + lea __bss_stop,%a1 + movel %a1,_ramstart + +/***************************************************************************** + * If the kernel is in RAM, move romfs to right above bss and + * adjust _ramstart to where romfs ends. + * + * (Do this only if CONFIG_MTD_UCLINUX is true) + *****************************************************************************/ + +#if defined(CONFIG_ROMFS_FS) && defined(CONFIG_RAMKERNEL) && \ + defined(CONFIG_MTD_UCLINUX) + lea __bss_start, %a0 /* get start of bss */ + lea __bss_stop, %a1 /* set up destination */ + movel %a0, %a2 /* copy of bss start */ + + movel 8(%a0), %d0 /* get size of ROMFS */ + addql #8, %d0 /* allow for rounding */ + andl #0xfffffffc, %d0 /* whole words */ + + addl %d0, %a0 /* copy from end */ + addl %d0, %a1 /* copy from end */ + movel %a1, _ramstart /* set start of ram */ +_copy_romfs: + movel -(%a0), -(%a1) /* copy dword */ + cmpl %a0, %a2 /* check if at end */ + bne _copy_romfs +#endif /* CONFIG_ROMFS_FS && CONFIG_RAMKERNEL && CONFIG_MTD_UCLINUX */ + +/***************************************************************************** + * Clear bss region + *****************************************************************************/ + lea __bss_start, %a0 /* get start of bss */ + lea __bss_stop, %a1 /* get end of bss */ +_clear_bss: + movel #0, (%a0)+ /* clear each word */ + cmpl %a0, %a1 /* check if at end */ + bne _clear_bss + +/***************************************************************************** + * Load the current task pointer and stack. + *****************************************************************************/ + lea init_thread_union,%a0 + lea THREAD_SIZE(%a0),%sp + jsr start_kernel /* start Linux kernel */ +_exit: + jmp _exit /* should never get here */ diff --git a/arch/m68k/platform/68328/ints.c b/arch/m68k/platform/68000/ints.c index b3810febb3e..cda49b12d7b 100644 --- a/arch/m68k/platform/68328/ints.c +++ b/arch/m68k/platform/68000/ints.c @@ -1,5 +1,5 @@ /* - * linux/arch/m68knommu/platform/68328/ints.c + * ints.c - Generic interrupt controller support * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive diff --git a/arch/m68k/platform/68328/config.c b/arch/m68k/platform/68000/m68328.c index 8c20e891e98..e53caf4c3bf 100644 --- a/arch/m68k/platform/68328/config.c +++ b/arch/m68k/platform/68000/m68328.c @@ -1,7 +1,7 @@ /***************************************************************************/ /* - * linux/arch/m68knommu/platform/68328/config.c + * m68328.c - 68328 specific config * * Copyright (C) 1993 Hamish Macdonald * Copyright (C) 1999 D. Jeff Dionne @@ -15,6 +15,7 @@ /***************************************************************************/ +#include <linux/init.h> #include <linux/types.h> #include <linux/kernel.h> #include <linux/rtc.h> @@ -42,7 +43,7 @@ void m68328_reset (void) /***************************************************************************/ -void config_BSP(char *command, int len) +void __init config_BSP(char *command, int len) { printk(KERN_INFO "\n68328 support D. Jeff Dionne <jeff@uclinux.org>\n"); printk(KERN_INFO "68328 support Kenneth Albanowski <kjahds@kjshds.com>\n"); diff --git a/arch/m68k/platform/68EZ328/config.c b/arch/m68k/platform/68000/m68EZ328.c index 4f158d551f0..21952906e9e 100644 --- a/arch/m68k/platform/68EZ328/config.c +++ b/arch/m68k/platform/68000/m68EZ328.c @@ -1,7 +1,7 @@ /***************************************************************************/ /* - * linux/arch/m68knommu/platform/68EZ328/config.c + * m68EZ328.c - 68EZ328 specific config * * Copyright (C) 1993 Hamish Macdonald * Copyright (C) 1999 D. Jeff Dionne @@ -13,6 +13,7 @@ /***************************************************************************/ +#include <linux/init.h> #include <linux/types.h> #include <linux/kernel.h> #include <linux/rtc.h> @@ -52,7 +53,7 @@ _bsc1(unsigned char *, gethwaddr, int, a) _bsc1(char *, getbenv, char *, a) #endif -void config_BSP(char *command, int len) +void __init config_BSP(char *command, int len) { unsigned char *p; @@ -68,7 +69,8 @@ void config_BSP(char *command, int len) if (p) strcpy(p,command); else command[0] = 0; #endif - + + mach_sched_init = hw_timer_init; mach_hwclk = m68328_hwclk; mach_reset = m68ez328_reset; } diff --git a/arch/m68k/platform/68VZ328/config.c b/arch/m68k/platform/68000/m68VZ328.c index 2ed8dc305e4..0e5e5a10a02 100644 --- a/arch/m68k/platform/68VZ328/config.c +++ b/arch/m68k/platform/68000/m68VZ328.c @@ -1,7 +1,7 @@ /***************************************************************************/ /* - * linux/arch/m68knommu/platform/68VZ328/config.c + * m68VZ328.c - 68VZ328 specific config * * Copyright (C) 1993 Hamish Macdonald * Copyright (C) 1999 D. Jeff Dionne @@ -14,6 +14,7 @@ /***************************************************************************/ +#include <linux/init.h> #include <linux/types.h> #include <linux/kernel.h> #include <linux/kd.h> @@ -28,7 +29,7 @@ #include <asm/bootstd.h> #ifdef CONFIG_INIT_LCD -#include "bootlogo.h" +#include "bootlogo-vz.h" #endif /***************************************************************************/ @@ -59,7 +60,7 @@ static void m68vz328_reset(void) ); } -static void init_hardware(char *command, int size) +static void __init init_hardware(char *command, int size) { #ifdef CONFIG_DIRECT_IO_ACCESS SCR = 0x10; /* allow user access to internal registers */ @@ -145,7 +146,7 @@ _bsc0(char *, getserialnum) _bsc1(unsigned char *, gethwaddr, int, a) _bsc1(char *, getbenv, char *, a) -static void init_hardware(char *command, int size) +static void __init init_hardware(char *command, int size) { char *p; @@ -167,7 +168,7 @@ static void m68vz328_reset(void) { } -static void init_hardware(char *command, int size) +static void __init init_hardware(char *command, int size) { } @@ -175,12 +176,13 @@ static void init_hardware(char *command, int size) #endif /***************************************************************************/ -void config_BSP(char *command, int size) +void __init config_BSP(char *command, int size) { printk(KERN_INFO "68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n"); init_hardware(command, size); + mach_sched_init = hw_timer_init; mach_hwclk = m68328_hwclk; mach_reset = m68vz328_reset; } diff --git a/arch/m68k/platform/68328/romvec.S b/arch/m68k/platform/68000/romvec.S index 31084466eae..15c70cd6453 100644 --- a/arch/m68k/platform/68328/romvec.S +++ b/arch/m68k/platform/68000/romvec.S @@ -1,5 +1,5 @@ /* - * linux/arch/m68knommu/platform/68328/romvec.S + * romvec.S - Vector table for 68000 cpus * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive diff --git a/arch/m68k/platform/68328/timers.c b/arch/m68k/platform/68000/timers.c index f4dc9b29560..99a98698bc9 100644 --- a/arch/m68k/platform/68328/timers.c +++ b/arch/m68k/platform/68000/timers.c @@ -1,7 +1,7 @@ /***************************************************************************/ /* - * linux/arch/m68knommu/platform/68328/timers.c + * timers.c - Generic hardware timer support. * * Copyright (C) 1993 Hamish Macdonald * Copyright (C) 1999 D. Jeff Dionne @@ -70,7 +70,7 @@ static irqreturn_t hw_tick(int irq, void *dummy) static struct irqaction m68328_timer_irq = { .name = "timer", - .flags = IRQF_DISABLED | IRQF_TIMER, + .flags = IRQF_TIMER, .handler = hw_tick, }; diff --git a/arch/m68k/platform/68328/Makefile b/arch/m68k/platform/68328/Makefile deleted file mode 100644 index ee61bf84d4a..00000000000 --- a/arch/m68k/platform/68328/Makefile +++ /dev/null @@ -1,21 +0,0 @@ -# -# Makefile for arch/m68knommu/platform/68328. -# - -model-y := ram -model-$(CONFIG_ROMKERNEL) := rom - -head-y = head-$(model-y).o -head-$(CONFIG_PILOT) = head-pilot.o -head-$(CONFIG_DRAGEN2) = head-de2.o - -obj-y += entry.o ints.o timers.o -obj-$(CONFIG_M68328) += config.o -obj-$(CONFIG_ROM) += romvec.o - -extra-y := head.o - -$(obj)/head.o: $(obj)/$(head-y) - ln -sf $(head-y) $(obj)/head.o - -clean-files := $(obj)/head.o $(head-y) diff --git a/arch/m68k/platform/68328/head-de2.S b/arch/m68k/platform/68328/head-de2.S deleted file mode 100644 index f632fdcb93e..00000000000 --- a/arch/m68k/platform/68328/head-de2.S +++ /dev/null @@ -1,128 +0,0 @@ - -#define MEM_END 0x00800000 /* Memory size 8Mb */ - -#undef CRT_DEBUG - -.macro PUTC CHAR -#ifdef CRT_DEBUG - moveq #\CHAR, %d7 - jsr putc -#endif -.endm - - .global _start - .global _rambase - .global _ramvec - .global _ramstart - .global _ramend - - .data - -/* - * Set up the usable of RAM stuff - */ -_rambase: - .long 0 -_ramvec: - .long 0 -_ramstart: - .long 0 -_ramend: - .long 0 - - .text - -_start: - -/* - * Setup initial stack - */ - /* disable all interrupts */ - movew #0x2700, %sr - movel #-1, 0xfffff304 - movel #MEM_END-4, %sp - - PUTC '\r' - PUTC '\n' - PUTC 'A' - PUTC 'B' - -/* - * Determine end of RAM - */ - - movel #MEM_END, %a0 - movel %a0, _ramend - - PUTC 'C' - -/* - * Move ROM filesystem above bss :-) - */ - - moveal #_sbss, %a0 /* romfs at the start of bss */ - moveal #_ebss, %a1 /* Set up destination */ - movel %a0, %a2 /* Copy of bss start */ - - movel 8(%a0), %d1 /* Get size of ROMFS */ - addql #8, %d1 /* Allow for rounding */ - andl #0xfffffffc, %d1 /* Whole words */ - - addl %d1, %a0 /* Copy from end */ - addl %d1, %a1 /* Copy from end */ - movel %a1, _ramstart /* Set start of ram */ - -1: - movel -(%a0), %d0 /* Copy dword */ - movel %d0, -(%a1) - cmpl %a0, %a2 /* Check if at end */ - bne 1b - - PUTC 'D' - -/* - * Initialize BSS segment to 0 - */ - - lea _sbss, %a0 - lea _ebss, %a1 - - /* Copy 0 to %a0 until %a0 == %a1 */ -2: cmpal %a0, %a1 - beq 1f - clrl (%a0)+ - bra 2b -1: - - PUTC 'E' - -/* - * Load the current task pointer and stack - */ - - lea init_thread_union, %a0 - lea 0x2000(%a0), %sp - - PUTC 'F' - PUTC '\r' - PUTC '\n' - -/* - * Go - */ - - jmp start_kernel - -/* - * Local functions - */ - -#ifdef CRT_DEBUG -putc: - moveb %d7, 0xfffff907 -1: - movew 0xfffff906, %d7 - andw #0x2000, %d7 - beq 1b - rts -#endif diff --git a/arch/m68k/platform/68328/head-pilot.S b/arch/m68k/platform/68328/head-pilot.S deleted file mode 100644 index 2ebfd642081..00000000000 --- a/arch/m68k/platform/68328/head-pilot.S +++ /dev/null @@ -1,207 +0,0 @@ -/* - * linux/arch/m68knommu/platform/68328/head-pilot.S - * - A startup file for the MC68328 - * - * Copyright (C) 1998 D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>, - * Kenneth Albanowski <kjahds@kjahds.com>, - * The Silver Hammer Group, Ltd. - * - * (c) 1995, Dionne & Associates - * (c) 1995, DKG Display Tech. - */ - -#define ASSEMBLY - -#define IMMED # -#define DBG_PUTC(x) moveb IMMED x, 0xfffff907 - - -.global _stext -.global _start - -.global _rambase -.global _ramvec -.global _ramstart -.global _ramend - -.global bootlogo_bits - -/*****************************************************************************/ - -.data - -/* - * Set up the usable of RAM stuff. Size of RAM is determined then - * an initial stack set up at the end. - */ -.align 4 -_ramvec: -.long 0 -_rambase: -.long 0 -_ramstart: -.long 0 -_ramend: -.long 0 - -.text - -_start: -_stext: - - -#ifdef CONFIG_M68328 - -#ifdef CONFIG_PILOT - .byte 0x4e, 0xfa, 0x00, 0x0a /* Jmp +X bytes */ - .byte 'b', 'o', 'o', 't' - .word 10000 - - nop -#endif - - moveq #0, %d0 - movew %d0, 0xfffff618 /* Watchdog off */ - movel #0x00011f07, 0xfffff114 /* CS A1 Mask */ - - movew #0x0800, 0xfffff906 /* Ignore CTS */ - movew #0x010b, 0xfffff902 /* BAUD to 9600 */ - - movew #0x2410, 0xfffff200 /* PLLCR */ - movew #0x123, 0xfffff202 /* PLLFSR */ - -#ifdef CONFIG_PILOT - moveb #0, 0xfffffA27 /* LCKCON */ - movel #_start, 0xfffffA00 /* LSSA */ - moveb #0xa, 0xfffffA05 /* LVPW */ - movew #0x9f, 0xFFFFFa08 /* LXMAX */ - movew #0x9f, 0xFFFFFa0a /* LYMAX */ - moveb #9, 0xfffffa29 /* LBAR */ - moveb #0, 0xfffffa25 /* LPXCD */ - moveb #0x04, 0xFFFFFa20 /* LPICF */ - moveb #0x58, 0xfffffA27 /* LCKCON */ - moveb #0x85, 0xfffff429 /* PFDATA */ - moveb #0xd8, 0xfffffA27 /* LCKCON */ - moveb #0xc5, 0xfffff429 /* PFDATA */ - moveb #0xd5, 0xfffff429 /* PFDATA */ - - moveal #0x00100000, %a3 - moveal #0x100ffc00, %a4 -#endif /* CONFIG_PILOT */ - -#endif /* CONFIG_M68328 */ - - movew #0x2700, %sr - lea %a4@(-4), %sp - - DBG_PUTC('\r') - DBG_PUTC('\n') - DBG_PUTC('A') - - moveq #0,%d0 - movew #16384, %d0 /* PLL settle wait loop */ -L0: - subw #1, %d0 - bne L0 - - DBG_PUTC('B') - - /* Copy command line from beginning of RAM (+16) to end of bss */ - movel #CONFIG_VECTORBASE, %d7 - addl #16, %d7 - moveal %d7, %a0 - moveal #_ebss, %a1 - lea %a1@(512), %a2 - - DBG_PUTC('C') - - /* Copy %a0 to %a1 until %a1 == %a2 */ -L2: - movel %a0@+, %d0 - movel %d0, %a1@+ - cmpal %a1, %a2 - bhi L2 - - /* Copy data+init segment from ROM to RAM */ - moveal #_etext, %a0 - moveal #_sdata, %a1 - moveal #__init_end, %a2 - - DBG_PUTC('D') - - /* Copy %a0 to %a1 until %a1 == %a2 */ -LD1: - movel %a0@+, %d0 - movel %d0, %a1@+ - cmpal %a1, %a2 - bhi LD1 - - DBG_PUTC('E') - - moveal #_sbss, %a0 - moveal #_ebss, %a1 - - /* Copy 0 to %a0 until %a0 == %a1 */ -L1: - movel #0, %a0@+ - cmpal %a0, %a1 - bhi L1 - - DBG_PUTC('F') - - /* Copy command line from end of bss to command line */ - moveal #_ebss, %a0 - moveal #command_line, %a1 - lea %a1@(512), %a2 - - DBG_PUTC('G') - - /* Copy %a0 to %a1 until %a1 == %a2 */ -L3: - movel %a0@+, %d0 - movel %d0, %a1@+ - cmpal %a1, %a2 - bhi L3 - - movel #_sdata, %d0 - movel %d0, _rambase - movel #_ebss, %d0 - movel %d0, _ramstart - - movel %a4, %d0 - subl #4096, %d0 /* Reserve 4K of stack */ - moveq #79, %d7 - movel %d0, _ramend - - pea 0 - pea env - pea %sp@(4) - pea 0 - - DBG_PUTC('H') - -#ifdef CONFIG_PILOT - movel #bootlogo_bits, 0xFFFFFA00 - moveb #10, 0xFFFFFA05 - movew #160, 0xFFFFFA08 - movew #160, 0xFFFFFA0A -#endif /* CONFIG_PILOT */ - - DBG_PUTC('I') - - lea init_thread_union, %a0 - lea 0x2000(%a0), %sp - - DBG_PUTC('J') - DBG_PUTC('\r') - DBG_PUTC('\n') - - jsr start_kernel -_exit: - - jmp _exit - - - .data -env: - .long 0 diff --git a/arch/m68k/platform/68328/head-ram.S b/arch/m68k/platform/68328/head-ram.S deleted file mode 100644 index 7f1aeeacb21..00000000000 --- a/arch/m68k/platform/68328/head-ram.S +++ /dev/null @@ -1,141 +0,0 @@ - - .global __main - .global __rom_start - - .global _rambase - .global _ramstart - - .global splash_bits - .global _start - .global _stext - .global _edata - -#define DEBUG -#define ROM_OFFSET 0x10C00000 -#define STACK_GAURD 0x10 - - .text - -_start: -_stext: - movew #0x2700, %sr /* Exceptions off! */ - -#if 0 - /* Init chip registers. uCsimm specific */ - moveb #0x00, 0xfffffb0b /* Watchdog off */ - moveb #0x10, 0xfffff000 /* SCR */ - - movew #0x2400, 0xfffff200 /* PLLCR */ - movew #0x0123, 0xfffff202 /* PLLFSR */ - - moveb #0x00, 0xfffff40b /* enable chip select */ - moveb #0x00, 0xfffff423 /* enable /DWE */ - moveb #0x08, 0xfffffd0d /* disable hardmap */ - moveb #0x07, 0xfffffd0e /* level 7 interrupt clear */ - - movew #0x8600, 0xfffff100 /* FLASH at 0x10c00000 */ - movew #0x018b, 0xfffff110 /* 2Meg, enable, 0ws */ - - movew #0x8f00, 0xfffffc00 /* DRAM configuration */ - movew #0x9667, 0xfffffc02 /* DRAM control */ - movew #0x0000, 0xfffff106 /* DRAM at 0x00000000 */ - movew #0x068f, 0xfffff116 /* 8Meg, enable, 0ws */ - - moveb #0x40, 0xfffff300 /* IVR */ - movel #0x007FFFFF, %d0 /* IMR */ - movel %d0, 0xfffff304 - - moveb 0xfffff42b, %d0 - andb #0xe0, %d0 - moveb %d0, 0xfffff42b - - moveb #0x08, 0xfffff907 /* Ignore CTS */ - movew #0x010b, 0xfffff902 /* BAUD to 9600 */ - movew #0xe100, 0xfffff900 /* enable */ -#endif - - movew #16384, %d0 /* PLL settle wait loop */ -L0: - subw #1, %d0 - bne L0 -#ifdef DEBUG - moveq #70, %d7 /* 'F' */ - moveb %d7,0xfffff907 /* No absolute addresses */ -pclp1: - movew 0xfffff906, %d7 - andw #0x2000, %d7 - beq pclp1 -#endif /* DEBUG */ - -#ifdef DEBUG - moveq #82, %d7 /* 'R' */ - moveb %d7,0xfffff907 /* No absolute addresses */ -pclp3: - movew 0xfffff906, %d7 - andw #0x2000, %d7 - beq pclp3 -#endif /* DEBUG */ - moveal #0x007ffff0, %ssp - moveal #_sbss, %a0 - moveal #_ebss, %a1 - - /* Copy 0 to %a0 until %a0 >= %a1 */ -L1: - movel #0, %a0@+ - cmpal %a0, %a1 - bhi L1 - -#ifdef DEBUG - moveq #67, %d7 /* 'C' */ - jsr putc -#endif /* DEBUG */ - - pea 0 - pea env - pea %sp@(4) - pea 0 - -#ifdef DEBUG - moveq #70, %d7 /* 'F' */ - jsr putc -#endif /* DEBUG */ - -lp: - jsr start_kernel - jmp lp -_exit: - - jmp _exit - -__main: - /* nothing */ - rts - -#ifdef DEBUG -putc: - moveb %d7,0xfffff907 -pclp: - movew 0xfffff906, %d7 - andw #0x2000, %d7 - beq pclp - rts -#endif /* DEBUG */ - - .data - -/* - * Set up the usable of RAM stuff. Size of RAM is determined then - * an initial stack set up at the end. - */ -.align 4 -_ramvec: -.long 0 -_rambase: -.long 0 -_ramstart: -.long 0 -_ramend: -.long 0 - -env: - .long 0 diff --git a/arch/m68k/platform/68328/head-rom.S b/arch/m68k/platform/68328/head-rom.S deleted file mode 100644 index a5ff96d0295..00000000000 --- a/arch/m68k/platform/68328/head-rom.S +++ /dev/null @@ -1,105 +0,0 @@ - - .global _start - .global _stext - - .global _rambase - .global _ramvec - .global _ramstart - .global _ramend - -#ifdef CONFIG_INIT_LCD - .global bootlogo_bits -#endif - - .data - -/* - * Set up the usable of RAM stuff. Size of RAM is determined then - * an initial stack set up at the end. - */ -.align 4 -_ramvec: -.long 0 -_rambase: -.long 0 -_ramstart: -.long 0 -_ramend: -.long 0 - -#define RAMEND (CONFIG_RAMBASE + CONFIG_RAMSIZE) - - .text -_start: -_stext: movew #0x2700,%sr -#ifdef CONFIG_INIT_LCD - movel #bootlogo_bits, 0xfffffA00 /* LSSA */ - moveb #0x28, 0xfffffA05 /* LVPW */ - movew #0x280, 0xFFFFFa08 /* LXMAX */ - movew #0x1df, 0xFFFFFa0a /* LYMAX */ - moveb #0, 0xfffffa29 /* LBAR */ - moveb #0, 0xfffffa25 /* LPXCD */ - moveb #0x08, 0xFFFFFa20 /* LPICF */ - moveb #0x01, 0xFFFFFA21 /* -ve pol */ - moveb #0x81, 0xfffffA27 /* LCKCON */ - movew #0xff00, 0xfffff412 /* LCD pins */ -#endif - moveal #RAMEND-CONFIG_MEMORY_RESERVE*0x100000 - 0x10, %sp - movew #32767, %d0 /* PLL settle wait loop */ -1: subq #1, %d0 - bne 1b - - /* Copy data segment from ROM to RAM */ - moveal #_etext, %a0 - moveal #_sdata, %a1 - moveal #_edata, %a2 - - /* Copy %a0 to %a1 until %a1 == %a2 */ -1: movel %a0@+, %a1@+ - cmpal %a1, %a2 - bhi 1b - - moveal #_sbss, %a0 - moveal #_ebss, %a1 - /* Copy 0 to %a0 until %a0 == %a1 */ - -1: - clrl %a0@+ - cmpal %a0, %a1 - bhi 1b - - movel #_sdata, %d0 - movel %d0, _rambase - movel #_ebss, %d0 - movel %d0, _ramstart - movel #RAMEND-CONFIG_MEMORY_RESERVE*0x100000, %d0 - movel %d0, _ramend - movel #CONFIG_VECTORBASE, %d0 - movel %d0, _ramvec - -/* - * load the current task pointer and stack - */ - lea init_thread_union, %a0 - lea 0x2000(%a0), %sp - -1: jsr start_kernel - bra 1b -_exit: - - jmp _exit - - -putc: - moveb %d7,0xfffff907 -1: - movew 0xfffff906, %d7 - andw #0x2000, %d7 - beq 1b - rts - - .data -env: - .long 0 - .text - diff --git a/arch/m68k/platform/68360/commproc.c b/arch/m68k/platform/68360/commproc.c index 8e4e10cc008..315727b7ff4 100644 --- a/arch/m68k/platform/68360/commproc.c +++ b/arch/m68k/platform/68360/commproc.c @@ -31,6 +31,7 @@ */ #include <linux/errno.h> +#include <linux/init.h> #include <linux/sched.h> #include <linux/kernel.h> #include <linux/param.h> @@ -77,7 +78,7 @@ void m360_cpm_reset(void); -void m360_cpm_reset() +void __init m360_cpm_reset() { /* pte_t *pte; */ diff --git a/arch/m68k/platform/68360/config.c b/arch/m68k/platform/68360/config.c index 9877cefad1e..d493ac43fe3 100644 --- a/arch/m68k/platform/68360/config.c +++ b/arch/m68k/platform/68360/config.c @@ -11,6 +11,7 @@ */ #include <stdarg.h> +#include <linux/init.h> #include <linux/types.h> #include <linux/kernel.h> #include <linux/mm.h> @@ -58,7 +59,7 @@ static irqreturn_t hw_tick(int irq, void *dummy) static struct irqaction m68360_timer_irq = { .name = "timer", - .flags = IRQF_DISABLED | IRQF_TIMER, + .flags = IRQF_TIMER, .handler = hw_tick, }; @@ -140,7 +141,7 @@ _bsc1(char *, getbenv, char *, a) #endif -void config_BSP(char *command, int len) +void __init config_BSP(char *command, int len) { unsigned char *p; diff --git a/arch/m68k/platform/68360/entry.S b/arch/m68k/platform/68360/entry.S index 904fd9a4af4..447c33ef37f 100644 --- a/arch/m68k/platform/68360/entry.S +++ b/arch/m68k/platform/68360/entry.S @@ -29,7 +29,6 @@ .globl ret_from_exception .globl ret_from_signal .globl sys_call_table -.globl ret_from_interrupt .globl bad_interrupt .globl inthandler @@ -132,26 +131,9 @@ inthandler: movel %sp,%sp@- movel %d0,%sp@- /* put vector # on stack*/ - jbsr do_IRQ /* process the IRQ*/ -3: addql #8,%sp /* pop parameters off stack*/ - bra ret_from_interrupt - -ret_from_interrupt: - jeq 1f -2: - RESTORE_ALL -1: - moveb %sp@(PT_OFF_SR), %d0 - and #7, %d0 - jhi 2b - /* check if we need to do software interrupts */ - - movel irq_stat+CPUSTAT_SOFTIRQ_PENDING,%d0 - jeq ret_from_exception - - pea ret_from_exception - jra do_softirq - + jbsr do_IRQ /* process the IRQ */ + addql #8,%sp /* pop parameters off stack*/ + jra ret_from_exception /* * Handler for uninitialized and spurious interrupts. diff --git a/arch/m68k/platform/68360/head-ram.S b/arch/m68k/platform/68360/head-ram.S index 8eb94fb6b97..acd213170d8 100644 --- a/arch/m68k/platform/68360/head-ram.S +++ b/arch/m68k/platform/68360/head-ram.S @@ -219,8 +219,8 @@ LD1: cmp.l #_edata, %a1 blt LD1 - moveal #_sbss, %a0 - moveal #_ebss, %a1 + moveal #__bss_start, %a0 + moveal #__bss_stop, %a1 /* Copy 0 to %a0 until %a0 == %a1 */ L1: @@ -234,7 +234,7 @@ load_quicc: store_ram_size: /* Set ram size information */ move.l #_sdata, _rambase - move.l #_ebss, _ramstart + move.l #__bss_stop, _ramstart move.l #RAMEND, %d0 sub.l #0x1000, %d0 /* Reserve 4K for stack space.*/ move.l %d0, _ramend /* Different from RAMEND.*/ diff --git a/arch/m68k/platform/68360/head-rom.S b/arch/m68k/platform/68360/head-rom.S index 97510e55b80..dfc756d9988 100644 --- a/arch/m68k/platform/68360/head-rom.S +++ b/arch/m68k/platform/68360/head-rom.S @@ -13,7 +13,7 @@ */ .global _stext -.global _sbss +.global __bss_start .global _start .global _rambase @@ -229,8 +229,8 @@ LD1: cmp.l #_edata, %a1 blt LD1 - moveal #_sbss, %a0 - moveal #_ebss, %a1 + moveal #__bss_start, %a0 + moveal #__bss_stop, %a1 /* Copy 0 to %a0 until %a0 == %a1 */ L1: @@ -244,7 +244,7 @@ load_quicc: store_ram_size: /* Set ram size information */ move.l #_sdata, _rambase - move.l #_ebss, _ramstart + move.l #__bss_stop, _ramstart move.l #RAMEND, %d0 sub.l #0x1000, %d0 /* Reserve 4K for stack space.*/ move.l %d0, _ramend /* Different from RAMEND.*/ diff --git a/arch/m68k/platform/68EZ328/Makefile b/arch/m68k/platform/68EZ328/Makefile deleted file mode 100644 index b44d799b111..00000000000 --- a/arch/m68k/platform/68EZ328/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# -# Makefile for arch/m68knommu/platform/68EZ328. -# - -obj-y := config.o diff --git a/arch/m68k/platform/68VZ328/Makefile b/arch/m68k/platform/68VZ328/Makefile deleted file mode 100644 index a49d75e6548..00000000000 --- a/arch/m68k/platform/68VZ328/Makefile +++ /dev/null @@ -1,11 +0,0 @@ -# -# Makefile for arch/m68knommu/platform/68VZ328. -# - -obj-y := config.o -extra-$(DRAGEN2):= screen.h - -$(obj)/screen.h: $(src)/screen.xbm $(src)/xbm2lcd.pl - perl $(src)/xbm2lcd.pl < $(src)/screen.xbm > $(obj)/screen.h - -clean-files := $(obj)/screen.h diff --git a/arch/m68k/platform/coldfire/Makefile b/arch/m68k/platform/coldfire/Makefile index 76d389d9a84..68f0fac6009 100644 --- a/arch/m68k/platform/coldfire/Makefile +++ b/arch/m68k/platform/coldfire/Makefile @@ -20,17 +20,22 @@ obj-$(CONFIG_M5206e) += m5206.o timers.o intc.o reset.o obj-$(CONFIG_M520x) += m520x.o pit.o intc-simr.o reset.o obj-$(CONFIG_M523x) += m523x.o pit.o dma_timer.o intc-2.o reset.o obj-$(CONFIG_M5249) += m5249.o timers.o intc.o intc-5249.o reset.o +obj-$(CONFIG_M525x) += m525x.o timers.o intc.o intc-525x.o reset.o obj-$(CONFIG_M527x) += m527x.o pit.o intc-2.o reset.o obj-$(CONFIG_M5272) += m5272.o intc-5272.o timers.o obj-$(CONFIG_M528x) += m528x.o pit.o intc-2.o reset.o obj-$(CONFIG_M5307) += m5307.o timers.o intc.o reset.o -obj-$(CONFIG_M532x) += m532x.o timers.o intc-simr.o reset.o +obj-$(CONFIG_M53xx) += m53xx.o timers.o intc-simr.o reset.o obj-$(CONFIG_M5407) += m5407.o timers.o intc.o reset.o obj-$(CONFIG_M54xx) += m54xx.o sltimers.o intc-2.o +obj-$(CONFIG_M5441x) += m5441x.o pit.o intc-simr.o reset.o obj-$(CONFIG_NETtel) += nettel.o obj-$(CONFIG_CLEOPATRA) += nettel.o obj-$(CONFIG_FIREBEE) += firebee.o +obj-$(CONFIG_MCF8390) += mcf8390.o -obj-y += pinmux.o gpio.o +obj-$(CONFIG_PCI) += pci.o + +obj-y += gpio.o extra-y := head.o diff --git a/arch/m68k/platform/coldfire/clk.c b/arch/m68k/platform/coldfire/clk.c index 44da406897e..fddfdccae63 100644 --- a/arch/m68k/platform/coldfire/clk.c +++ b/arch/m68k/platform/coldfire/clk.c @@ -10,43 +10,115 @@ #include <linux/kernel.h> #include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/mutex.h> #include <linux/clk.h> +#include <linux/io.h> +#include <linux/err.h> #include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfclk.h> -/***************************************************************************/ +static DEFINE_SPINLOCK(clk_lock); + +#ifdef MCFPM_PPMCR0 +/* + * For more advanced ColdFire parts that have clocks that can be enabled + * we supply enable/disable functions. These must properly define their + * clocks in their platform specific code. + */ +void __clk_init_enabled(struct clk *clk) +{ + clk->enabled = 1; + clk->clk_ops->enable(clk); +} + +void __clk_init_disabled(struct clk *clk) +{ + clk->enabled = 0; + clk->clk_ops->disable(clk); +} + +static void __clk_enable0(struct clk *clk) +{ + __raw_writeb(clk->slot, MCFPM_PPMCR0); +} + +static void __clk_disable0(struct clk *clk) +{ + __raw_writeb(clk->slot, MCFPM_PPMSR0); +} + +struct clk_ops clk_ops0 = { + .enable = __clk_enable0, + .disable = __clk_disable0, +}; + +#ifdef MCFPM_PPMCR1 +static void __clk_enable1(struct clk *clk) +{ + __raw_writeb(clk->slot, MCFPM_PPMCR1); +} + +static void __clk_disable1(struct clk *clk) +{ + __raw_writeb(clk->slot, MCFPM_PPMSR1); +} + +struct clk_ops clk_ops1 = { + .enable = __clk_enable1, + .disable = __clk_disable1, +}; +#endif /* MCFPM_PPMCR1 */ +#endif /* MCFPM_PPMCR0 */ struct clk *clk_get(struct device *dev, const char *id) { - return NULL; + const char *clk_name = dev ? dev_name(dev) : id ? id : NULL; + struct clk *clk; + unsigned i; + + for (i = 0; (clk = mcf_clks[i]) != NULL; ++i) + if (!strcmp(clk->name, clk_name)) + return clk; + pr_warn("clk_get: didn't find clock %s\n", clk_name); + return ERR_PTR(-ENOENT); } EXPORT_SYMBOL(clk_get); int clk_enable(struct clk *clk) { + unsigned long flags; + spin_lock_irqsave(&clk_lock, flags); + if ((clk->enabled++ == 0) && clk->clk_ops) + clk->clk_ops->enable(clk); + spin_unlock_irqrestore(&clk_lock, flags); + return 0; } EXPORT_SYMBOL(clk_enable); void clk_disable(struct clk *clk) { + unsigned long flags; + spin_lock_irqsave(&clk_lock, flags); + if ((--clk->enabled == 0) && clk->clk_ops) + clk->clk_ops->disable(clk); + spin_unlock_irqrestore(&clk_lock, flags); } EXPORT_SYMBOL(clk_disable); void clk_put(struct clk *clk) { + if (clk->enabled != 0) + pr_warn("clk_put %s still enabled\n", clk->name); } EXPORT_SYMBOL(clk_put); unsigned long clk_get_rate(struct clk *clk) { - return MCF_CLK; + return clk->rate; } EXPORT_SYMBOL(clk_get_rate); -struct clk *devm_clk_get(struct device *dev, const char *id) -{ - return NULL; -} -EXPORT_SYMBOL(devm_clk_get); - /***************************************************************************/ diff --git a/arch/m68k/platform/coldfire/device.c b/arch/m68k/platform/coldfire/device.c index 3aa77ddea89..71ea4c02795 100644 --- a/arch/m68k/platform/coldfire/device.c +++ b/arch/m68k/platform/coldfire/device.c @@ -13,6 +13,7 @@ #include <linux/io.h> #include <linux/spi/spi.h> #include <linux/gpio.h> +#include <linux/fec.h> #include <asm/traps.h> #include <asm/coldfire.h> #include <asm/mcfsim.h> @@ -20,7 +21,7 @@ #include <asm/mcfqspi.h> /* - * All current ColdFire parts contain from 2, 3 or 4 UARTS. + * All current ColdFire parts contain from 2, 3, 4 or 10 UARTS. */ static struct mcf_platform_uart mcf_uart_platform_data[] = { { @@ -43,6 +44,42 @@ static struct mcf_platform_uart mcf_uart_platform_data[] = { .irq = MCF_IRQ_UART3, }, #endif +#ifdef MCFUART_BASE4 + { + .mapbase = MCFUART_BASE4, + .irq = MCF_IRQ_UART4, + }, +#endif +#ifdef MCFUART_BASE5 + { + .mapbase = MCFUART_BASE5, + .irq = MCF_IRQ_UART5, + }, +#endif +#ifdef MCFUART_BASE6 + { + .mapbase = MCFUART_BASE6, + .irq = MCF_IRQ_UART6, + }, +#endif +#ifdef MCFUART_BASE7 + { + .mapbase = MCFUART_BASE7, + .irq = MCF_IRQ_UART7, + }, +#endif +#ifdef MCFUART_BASE8 + { + .mapbase = MCFUART_BASE8, + .irq = MCF_IRQ_UART8, + }, +#endif +#ifdef MCFUART_BASE9 + { + .mapbase = MCFUART_BASE9, + .irq = MCF_IRQ_UART9, + }, +#endif { }, }; @@ -53,6 +90,18 @@ static struct platform_device mcf_uart = { }; #ifdef CONFIG_FEC + +#ifdef CONFIG_M5441x +#define FEC_NAME "enet-fec" +static struct fec_platform_data fec_pdata = { + .phy = PHY_INTERFACE_MODE_RMII, +}; +#define FEC_PDATA (&fec_pdata) +#else +#define FEC_NAME "fec" +#define FEC_PDATA NULL +#endif + /* * Some ColdFire cores contain the Fast Ethernet Controller (FEC) * block. It is Freescale's own hardware block. Some ColdFires @@ -82,10 +131,11 @@ static struct resource mcf_fec0_resources[] = { }; static struct platform_device mcf_fec0 = { - .name = "fec", + .name = FEC_NAME, .id = 0, .num_resources = ARRAY_SIZE(mcf_fec0_resources), .resource = mcf_fec0_resources, + .dev.platform_data = FEC_PDATA, }; #ifdef MCFFEC_BASE1 @@ -113,10 +163,11 @@ static struct resource mcf_fec1_resources[] = { }; static struct platform_device mcf_fec1 = { - .name = "fec", + .name = FEC_NAME, .id = 1, .num_resources = ARRAY_SIZE(mcf_fec1_resources), .resource = mcf_fec1_resources, + .dev.platform_data = FEC_PDATA, }; #endif /* MCFFEC_BASE1 */ #endif /* CONFIG_FEC */ @@ -296,12 +347,12 @@ static void __init mcf_uart_set_irq(void) { #ifdef MCFUART_UIVR /* UART0 interrupt setup */ - writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR); + writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCFSIM_UART1ICR); writeb(MCF_IRQ_UART0, MCFUART_BASE0 + MCFUART_UIVR); mcf_mapirq2imr(MCF_IRQ_UART0, MCFINTC_UART0); /* UART1 interrupt setup */ - writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR); + writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCFSIM_UART2ICR); writeb(MCF_IRQ_UART1, MCFUART_BASE1 + MCFUART_UIVR); mcf_mapirq2imr(MCF_IRQ_UART1, MCFINTC_UART1); #endif diff --git a/arch/m68k/platform/coldfire/gpio.c b/arch/m68k/platform/coldfire/gpio.c index 4c8c42450a4..e7e428681ec 100644 --- a/arch/m68k/platform/coldfire/gpio.c +++ b/arch/m68k/platform/coldfire/gpio.c @@ -14,119 +14,173 @@ */ #include <linux/kernel.h> +#include <linux/module.h> #include <linux/init.h> #include <linux/device.h> -#include <asm/gpio.h> -#include <asm/pinmux.h> +#include <linux/io.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> #include <asm/mcfgpio.h> -#define MCF_CHIP(chip) container_of(chip, struct mcf_gpio_chip, gpio_chip) +int __mcfgpio_get_value(unsigned gpio) +{ + return mcfgpio_read(__mcfgpio_ppdr(gpio)) & mcfgpio_bit(gpio); +} +EXPORT_SYMBOL(__mcfgpio_get_value); + +void __mcfgpio_set_value(unsigned gpio, int value) +{ + if (gpio < MCFGPIO_SCR_START) { + unsigned long flags; + MCFGPIO_PORTTYPE data; + + local_irq_save(flags); + data = mcfgpio_read(__mcfgpio_podr(gpio)); + if (value) + data |= mcfgpio_bit(gpio); + else + data &= ~mcfgpio_bit(gpio); + mcfgpio_write(data, __mcfgpio_podr(gpio)); + local_irq_restore(flags); + } else { + if (value) + mcfgpio_write(mcfgpio_bit(gpio), + MCFGPIO_SETR_PORT(gpio)); + else + mcfgpio_write(~mcfgpio_bit(gpio), + MCFGPIO_CLRR_PORT(gpio)); + } +} +EXPORT_SYMBOL(__mcfgpio_set_value); -int mcf_gpio_direction_input(struct gpio_chip *chip, unsigned offset) +int __mcfgpio_direction_input(unsigned gpio) { unsigned long flags; MCFGPIO_PORTTYPE dir; - struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); local_irq_save(flags); - dir = mcfgpio_read(mcf_chip->pddr); - dir &= ~mcfgpio_bit(chip->base + offset); - mcfgpio_write(dir, mcf_chip->pddr); + dir = mcfgpio_read(__mcfgpio_pddr(gpio)); + dir &= ~mcfgpio_bit(gpio); + mcfgpio_write(dir, __mcfgpio_pddr(gpio)); local_irq_restore(flags); return 0; } +EXPORT_SYMBOL(__mcfgpio_direction_input); -int mcf_gpio_get_value(struct gpio_chip *chip, unsigned offset) -{ - struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); - - return mcfgpio_read(mcf_chip->ppdr) & mcfgpio_bit(chip->base + offset); -} - -int mcf_gpio_direction_output(struct gpio_chip *chip, unsigned offset, - int value) +int __mcfgpio_direction_output(unsigned gpio, int value) { unsigned long flags; MCFGPIO_PORTTYPE data; - struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); local_irq_save(flags); - /* write the value to the output latch */ - data = mcfgpio_read(mcf_chip->podr); - if (value) - data |= mcfgpio_bit(chip->base + offset); - else - data &= ~mcfgpio_bit(chip->base + offset); - mcfgpio_write(data, mcf_chip->podr); - - /* now set the direction to output */ - data = mcfgpio_read(mcf_chip->pddr); - data |= mcfgpio_bit(chip->base + offset); - mcfgpio_write(data, mcf_chip->pddr); + data = mcfgpio_read(__mcfgpio_pddr(gpio)); + data |= mcfgpio_bit(gpio); + mcfgpio_write(data, __mcfgpio_pddr(gpio)); + + /* now set the data to output */ + if (gpio < MCFGPIO_SCR_START) { + data = mcfgpio_read(__mcfgpio_podr(gpio)); + if (value) + data |= mcfgpio_bit(gpio); + else + data &= ~mcfgpio_bit(gpio); + mcfgpio_write(data, __mcfgpio_podr(gpio)); + } else { + if (value) + mcfgpio_write(mcfgpio_bit(gpio), + MCFGPIO_SETR_PORT(gpio)); + else + mcfgpio_write(~mcfgpio_bit(gpio), + MCFGPIO_CLRR_PORT(gpio)); + } local_irq_restore(flags); + return 0; +} +EXPORT_SYMBOL(__mcfgpio_direction_output); +int __mcfgpio_request(unsigned gpio) +{ return 0; } +EXPORT_SYMBOL(__mcfgpio_request); -void mcf_gpio_set_value(struct gpio_chip *chip, unsigned offset, int value) +void __mcfgpio_free(unsigned gpio) { - struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); + __mcfgpio_direction_input(gpio); +} +EXPORT_SYMBOL(__mcfgpio_free); - unsigned long flags; - MCFGPIO_PORTTYPE data; +#ifdef CONFIG_GPIOLIB - local_irq_save(flags); - data = mcfgpio_read(mcf_chip->podr); - if (value) - data |= mcfgpio_bit(chip->base + offset); - else - data &= ~mcfgpio_bit(chip->base + offset); - mcfgpio_write(data, mcf_chip->podr); - local_irq_restore(flags); +static int mcfgpio_direction_input(struct gpio_chip *chip, unsigned offset) +{ + return __mcfgpio_direction_input(offset); } -void mcf_gpio_set_value_fast(struct gpio_chip *chip, unsigned offset, int value) +static int mcfgpio_get_value(struct gpio_chip *chip, unsigned offset) { - struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); - - if (value) - mcfgpio_write(mcfgpio_bit(chip->base + offset), mcf_chip->setr); - else - mcfgpio_write(~mcfgpio_bit(chip->base + offset), mcf_chip->clrr); + return __mcfgpio_get_value(offset); } -int mcf_gpio_request(struct gpio_chip *chip, unsigned offset) +static int mcfgpio_direction_output(struct gpio_chip *chip, unsigned offset, + int value) { - struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); + return __mcfgpio_direction_output(offset, value); +} - return mcf_chip->gpio_to_pinmux ? - mcf_pinmux_request(mcf_chip->gpio_to_pinmux[offset], 0) : 0; +static void mcfgpio_set_value(struct gpio_chip *chip, unsigned offset, + int value) +{ + __mcfgpio_set_value(offset, value); } -void mcf_gpio_free(struct gpio_chip *chip, unsigned offset) +static int mcfgpio_request(struct gpio_chip *chip, unsigned offset) { - struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); + return __mcfgpio_request(offset); +} - mcf_gpio_direction_input(chip, offset); +static void mcfgpio_free(struct gpio_chip *chip, unsigned offset) +{ + __mcfgpio_free(offset); +} - if (mcf_chip->gpio_to_pinmux) - mcf_pinmux_release(mcf_chip->gpio_to_pinmux[offset], 0); +static int mcfgpio_to_irq(struct gpio_chip *chip, unsigned offset) +{ +#if defined(MCFGPIO_IRQ_MIN) + if ((offset >= MCFGPIO_IRQ_MIN) && (offset < MCFGPIO_IRQ_MAX)) +#else + if (offset < MCFGPIO_IRQ_MAX) +#endif + return MCFGPIO_IRQ_VECBASE + offset; + else + return -EINVAL; } -struct bus_type mcf_gpio_subsys = { +static struct bus_type mcfgpio_subsys = { .name = "gpio", .dev_name = "gpio", }; -static int __init mcf_gpio_sysinit(void) -{ - unsigned int i = 0; +static struct gpio_chip mcfgpio_chip = { + .label = "mcfgpio", + .request = mcfgpio_request, + .free = mcfgpio_free, + .direction_input = mcfgpio_direction_input, + .direction_output = mcfgpio_direction_output, + .get = mcfgpio_get_value, + .set = mcfgpio_set_value, + .to_irq = mcfgpio_to_irq, + .base = 0, + .ngpio = MCFGPIO_PIN_MAX, +}; - while (i < mcf_gpio_chips_size) - gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); - return subsys_system_register(&mcf_gpio_subsys, NULL); +static int __init mcfgpio_sysinit(void) +{ + gpiochip_add(&mcfgpio_chip); + return subsys_system_register(&mcfgpio_subsys, NULL); } -core_initcall(mcf_gpio_sysinit); +core_initcall(mcfgpio_sysinit); +#endif diff --git a/arch/m68k/platform/coldfire/head.S b/arch/m68k/platform/coldfire/head.S index c3db70ed33b..fa31be297b8 100644 --- a/arch/m68k/platform/coldfire/head.S +++ b/arch/m68k/platform/coldfire/head.S @@ -31,9 +31,9 @@ .endm #elif defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \ - defined(CONFIG_M5249) || defined(CONFIG_M527x) || \ - defined(CONFIG_M528x) || defined(CONFIG_M5307) || \ - defined(CONFIG_M5407) + defined(CONFIG_M5249) || defined(CONFIG_M525x) || \ + defined(CONFIG_M527x) || defined(CONFIG_M528x) || \ + defined(CONFIG_M5307) || defined(CONFIG_M5407) /* * Not all these devices have exactly the same DRAM controller, * but the DCMR register is virtually identical - give or take @@ -60,7 +60,7 @@ #elif defined(CONFIG_M5272) .macro GET_MEM_SIZE - movel MCF_MBAR+MCFSIM_CSOR7,%d0 /* get SDRAM address mask */ + movel MCFSIM_CSOR7,%d0 /* get SDRAM address mask */ andil #0xfffff000,%d0 /* mask out chip select options */ negl %d0 /* negate bits */ .endm @@ -230,8 +230,8 @@ _vstart: /* * Move ROM filesystem above bss :-) */ - lea _sbss,%a0 /* get start of bss */ - lea _ebss,%a1 /* set up destination */ + lea __bss_start,%a0 /* get start of bss */ + lea __bss_stop,%a1 /* set up destination */ movel %a0,%a2 /* copy of bss start */ movel 8(%a0),%d0 /* get size of ROMFS */ @@ -249,7 +249,7 @@ _copy_romfs: bne _copy_romfs #else /* CONFIG_ROMFS_FS */ - lea _ebss,%a1 + lea __bss_stop,%a1 movel %a1,_ramstart #endif /* CONFIG_ROMFS_FS */ @@ -257,8 +257,8 @@ _copy_romfs: /* * Zero out the bss region. */ - lea _sbss,%a0 /* get start of bss */ - lea _ebss,%a1 /* get end of bss */ + lea __bss_start,%a0 /* get start of bss */ + lea __bss_stop,%a1 /* get end of bss */ clrl %d0 /* set value */ _clear_bss: movel %d0,(%a0)+ /* clear each word */ diff --git a/arch/m68k/platform/coldfire/intc-5249.c b/arch/m68k/platform/coldfire/intc-5249.c index f343bf7bf5b..b0d1641053e 100644 --- a/arch/m68k/platform/coldfire/intc-5249.c +++ b/arch/m68k/platform/coldfire/intc-5249.c @@ -20,22 +20,22 @@ static void intc2_irq_gpio_mask(struct irq_data *d) { u32 imr; - imr = readl(MCF_MBAR2 + MCFSIM2_GPIOINTENABLE); - imr &= ~(0x1 << (d->irq - MCFINTC2_GPIOIRQ0)); - writel(imr, MCF_MBAR2 + MCFSIM2_GPIOINTENABLE); + imr = readl(MCFSIM2_GPIOINTENABLE); + imr &= ~(0x1 << (d->irq - MCF_IRQ_GPIO0)); + writel(imr, MCFSIM2_GPIOINTENABLE); } static void intc2_irq_gpio_unmask(struct irq_data *d) { u32 imr; - imr = readl(MCF_MBAR2 + MCFSIM2_GPIOINTENABLE); - imr |= (0x1 << (d->irq - MCFINTC2_GPIOIRQ0)); - writel(imr, MCF_MBAR2 + MCFSIM2_GPIOINTENABLE); + imr = readl(MCFSIM2_GPIOINTENABLE); + imr |= (0x1 << (d->irq - MCF_IRQ_GPIO0)); + writel(imr, MCFSIM2_GPIOINTENABLE); } static void intc2_irq_gpio_ack(struct irq_data *d) { - writel(0x1 << (d->irq - MCFINTC2_GPIOIRQ0), MCF_MBAR2 + MCFSIM2_GPIOINTCLEAR); + writel(0x1 << (d->irq - MCF_IRQ_GPIO0), MCFSIM2_GPIOINTCLEAR); } static struct irq_chip intc2_irq_gpio_chip = { @@ -50,7 +50,7 @@ static int __init mcf_intc2_init(void) int irq; /* GPIO interrupt sources */ - for (irq = MCFINTC2_GPIOIRQ0; (irq <= MCFINTC2_GPIOIRQ7); irq++) { + for (irq = MCF_IRQ_GPIO0; (irq <= MCF_IRQ_GPIO7); irq++) { irq_set_chip(irq, &intc2_irq_gpio_chip); irq_set_handler(irq, handle_edge_irq); } diff --git a/arch/m68k/platform/coldfire/intc-525x.c b/arch/m68k/platform/coldfire/intc-525x.c new file mode 100644 index 00000000000..b23204d059a --- /dev/null +++ b/arch/m68k/platform/coldfire/intc-525x.c @@ -0,0 +1,91 @@ +/* + * intc2.c -- support for the 2nd INTC controller of the 525x + * + * (C) Copyright 2012, Steven King <sfking@fdwdc.com> + * (C) Copyright 2009, Greg Ungerer <gerg@snapgear.com> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#include <linux/types.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/io.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> + +static void intc2_irq_gpio_mask(struct irq_data *d) +{ + u32 imr = readl(MCFSIM2_GPIOINTENABLE); + u32 type = irqd_get_trigger_type(d); + int irq = d->irq - MCF_IRQ_GPIO0; + + if (type & IRQ_TYPE_EDGE_RISING) + imr &= ~(0x001 << irq); + if (type & IRQ_TYPE_EDGE_FALLING) + imr &= ~(0x100 << irq); + writel(imr, MCFSIM2_GPIOINTENABLE); +} + +static void intc2_irq_gpio_unmask(struct irq_data *d) +{ + u32 imr = readl(MCFSIM2_GPIOINTENABLE); + u32 type = irqd_get_trigger_type(d); + int irq = d->irq - MCF_IRQ_GPIO0; + + if (type & IRQ_TYPE_EDGE_RISING) + imr |= (0x001 << irq); + if (type & IRQ_TYPE_EDGE_FALLING) + imr |= (0x100 << irq); + writel(imr, MCFSIM2_GPIOINTENABLE); +} + +static void intc2_irq_gpio_ack(struct irq_data *d) +{ + u32 imr = 0; + u32 type = irqd_get_trigger_type(d); + int irq = d->irq - MCF_IRQ_GPIO0; + + if (type & IRQ_TYPE_EDGE_RISING) + imr |= (0x001 << irq); + if (type & IRQ_TYPE_EDGE_FALLING) + imr |= (0x100 << irq); + writel(imr, MCFSIM2_GPIOINTCLEAR); +} + +static int intc2_irq_gpio_set_type(struct irq_data *d, unsigned int f) +{ + if (f & ~IRQ_TYPE_EDGE_BOTH) + return -EINVAL; + return 0; +} + +static struct irq_chip intc2_irq_gpio_chip = { + .name = "CF-INTC2", + .irq_mask = intc2_irq_gpio_mask, + .irq_unmask = intc2_irq_gpio_unmask, + .irq_ack = intc2_irq_gpio_ack, + .irq_set_type = intc2_irq_gpio_set_type, +}; + +static int __init mcf_intc2_init(void) +{ + int irq; + + /* set the interrupt base for the second interrupt controller */ + writel(MCFINTC2_VECBASE, MCFINTC2_INTBASE); + + /* GPIO interrupt sources */ + for (irq = MCF_IRQ_GPIO0; (irq <= MCF_IRQ_GPIO6); irq++) { + irq_set_chip(irq, &intc2_irq_gpio_chip); + irq_set_handler(irq, handle_edge_irq); + } + + return 0; +} + +arch_initcall(mcf_intc2_init); diff --git a/arch/m68k/platform/coldfire/intc-5272.c b/arch/m68k/platform/coldfire/intc-5272.c index 7160e618b0a..d7b695629a7 100644 --- a/arch/m68k/platform/coldfire/intc-5272.c +++ b/arch/m68k/platform/coldfire/intc-5272.c @@ -86,7 +86,7 @@ static void intc_irq_mask(struct irq_data *d) u32 v; irq -= MCFINT_VECBASE; v = 0x8 << intc_irqmap[irq].index; - writel(v, MCF_MBAR + intc_irqmap[irq].icr); + writel(v, intc_irqmap[irq].icr); } } @@ -98,7 +98,7 @@ static void intc_irq_unmask(struct irq_data *d) u32 v; irq -= MCFINT_VECBASE; v = 0xd << intc_irqmap[irq].index; - writel(v, MCF_MBAR + intc_irqmap[irq].icr); + writel(v, intc_irqmap[irq].icr); } } @@ -111,10 +111,10 @@ static void intc_irq_ack(struct irq_data *d) irq -= MCFINT_VECBASE; if (intc_irqmap[irq].ack) { u32 v; - v = readl(MCF_MBAR + intc_irqmap[irq].icr); + v = readl(intc_irqmap[irq].icr); v &= (0x7 << intc_irqmap[irq].index); v |= (0x8 << intc_irqmap[irq].index); - writel(v, MCF_MBAR + intc_irqmap[irq].icr); + writel(v, intc_irqmap[irq].icr); } } } @@ -127,12 +127,12 @@ static int intc_irq_set_type(struct irq_data *d, unsigned int type) irq -= MCFINT_VECBASE; if (intc_irqmap[irq].ack) { u32 v; - v = readl(MCF_MBAR + MCFSIM_PITR); + v = readl(MCFSIM_PITR); if (type == IRQ_TYPE_EDGE_FALLING) v &= ~(0x1 << (32 - irq)); else v |= (0x1 << (32 - irq)); - writel(v, MCF_MBAR + MCFSIM_PITR); + writel(v, MCFSIM_PITR); } } return 0; @@ -163,10 +163,10 @@ void __init init_IRQ(void) int irq, edge; /* Mask all interrupt sources */ - writel(0x88888888, MCF_MBAR + MCFSIM_ICR1); - writel(0x88888888, MCF_MBAR + MCFSIM_ICR2); - writel(0x88888888, MCF_MBAR + MCFSIM_ICR3); - writel(0x88888888, MCF_MBAR + MCFSIM_ICR4); + writel(0x88888888, MCFSIM_ICR1); + writel(0x88888888, MCFSIM_ICR2); + writel(0x88888888, MCFSIM_ICR3); + writel(0x88888888, MCFSIM_ICR4); for (irq = 0; (irq < NR_IRQS); irq++) { irq_set_chip(irq, &intc_irq_chip); diff --git a/arch/m68k/platform/coldfire/intc-simr.c b/arch/m68k/platform/coldfire/intc-simr.c index 650d52e2927..7cf2c156f72 100644 --- a/arch/m68k/platform/coldfire/intc-simr.c +++ b/arch/m68k/platform/coldfire/intc-simr.c @@ -59,16 +59,18 @@ static unsigned int inline irq2ebit(unsigned int irq) #endif /* - * There maybe one or two interrupt control units, each has 64 - * interrupts. If there is no second unit then MCFINTC1_* defines - * will be 0 (and code for them optimized away). + * There maybe one, two or three interrupt control units, each has 64 + * interrupts. If there is no second or third unit then MCFINTC1_* or + * MCFINTC2_* defines will be 0 (and code for them optimized away). */ static void intc_irq_mask(struct irq_data *d) { unsigned int irq = d->irq - MCFINT_VECBASE; - if (MCFINTC1_SIMR && (irq > 64)) + if (MCFINTC2_SIMR && (irq > 128)) + __raw_writeb(irq - 128, MCFINTC2_SIMR); + else if (MCFINTC1_SIMR && (irq > 64)) __raw_writeb(irq - 64, MCFINTC1_SIMR); else __raw_writeb(irq, MCFINTC0_SIMR); @@ -78,7 +80,9 @@ static void intc_irq_unmask(struct irq_data *d) { unsigned int irq = d->irq - MCFINT_VECBASE; - if (MCFINTC1_CIMR && (irq > 64)) + if (MCFINTC2_CIMR && (irq > 128)) + __raw_writeb(irq - 128, MCFINTC2_CIMR); + else if (MCFINTC1_CIMR && (irq > 64)) __raw_writeb(irq - 64, MCFINTC1_CIMR); else __raw_writeb(irq, MCFINTC0_CIMR); @@ -99,9 +103,11 @@ static unsigned int intc_irq_startup(struct irq_data *d) unsigned int ebit = irq2ebit(irq); u8 v; +#if defined(MCFEPORT_EPDDR) /* Set EPORT line as input */ v = __raw_readb(MCFEPORT_EPDDR); __raw_writeb(v & ~(0x1 << ebit), MCFEPORT_EPDDR); +#endif /* Set EPORT line as interrupt source */ v = __raw_readb(MCFEPORT_EPIER); @@ -109,12 +115,13 @@ static unsigned int intc_irq_startup(struct irq_data *d) } irq -= MCFINT_VECBASE; - if (MCFINTC1_ICR0 && (irq > 64)) + if (MCFINTC2_ICR0 && (irq > 128)) + __raw_writeb(5, MCFINTC2_ICR0 + irq - 128); + else if (MCFINTC1_ICR0 && (irq > 64)) __raw_writeb(5, MCFINTC1_ICR0 + irq - 64); else __raw_writeb(5, MCFINTC0_ICR0 + irq); - intc_irq_unmask(d); return 0; } @@ -175,8 +182,11 @@ void __init init_IRQ(void) __raw_writeb(0xff, MCFINTC0_SIMR); if (MCFINTC1_SIMR) __raw_writeb(0xff, MCFINTC1_SIMR); + if (MCFINTC2_SIMR) + __raw_writeb(0xff, MCFINTC2_SIMR); - eirq = MCFINT_VECBASE + 64 + (MCFINTC1_ICR0 ? 64 : 0); + eirq = MCFINT_VECBASE + 64 + (MCFINTC1_ICR0 ? 64 : 0) + + (MCFINTC2_ICR0 ? 64 : 0); for (irq = MCFINT_VECBASE; (irq < eirq); irq++) { if ((irq >= EINT1) && (irq <= EINT7)) irq_set_chip(irq, &intc_irq_chip_edge_port); diff --git a/arch/m68k/platform/coldfire/intc.c b/arch/m68k/platform/coldfire/intc.c index 5c0c150b406..cce25742038 100644 --- a/arch/m68k/platform/coldfire/intc.c +++ b/arch/m68k/platform/coldfire/intc.c @@ -45,23 +45,23 @@ unsigned char mcf_irq2imr[NR_IRQS]; void mcf_setimr(int index) { u16 imr; - imr = __raw_readw(MCF_MBAR + MCFSIM_IMR); - __raw_writew(imr | (0x1 << index), MCF_MBAR + MCFSIM_IMR); + imr = __raw_readw(MCFSIM_IMR); + __raw_writew(imr | (0x1 << index), MCFSIM_IMR); } void mcf_clrimr(int index) { u16 imr; - imr = __raw_readw(MCF_MBAR + MCFSIM_IMR); - __raw_writew(imr & ~(0x1 << index), MCF_MBAR + MCFSIM_IMR); + imr = __raw_readw(MCFSIM_IMR); + __raw_writew(imr & ~(0x1 << index), MCFSIM_IMR); } void mcf_maskimr(unsigned int mask) { u16 imr; - imr = __raw_readw(MCF_MBAR + MCFSIM_IMR); + imr = __raw_readw(MCFSIM_IMR); imr |= mask; - __raw_writew(imr, MCF_MBAR + MCFSIM_IMR); + __raw_writew(imr, MCFSIM_IMR); } #else @@ -69,23 +69,23 @@ void mcf_maskimr(unsigned int mask) void mcf_setimr(int index) { u32 imr; - imr = __raw_readl(MCF_MBAR + MCFSIM_IMR); - __raw_writel(imr | (0x1 << index), MCF_MBAR + MCFSIM_IMR); + imr = __raw_readl(MCFSIM_IMR); + __raw_writel(imr | (0x1 << index), MCFSIM_IMR); } void mcf_clrimr(int index) { u32 imr; - imr = __raw_readl(MCF_MBAR + MCFSIM_IMR); - __raw_writel(imr & ~(0x1 << index), MCF_MBAR + MCFSIM_IMR); + imr = __raw_readl(MCFSIM_IMR); + __raw_writel(imr & ~(0x1 << index), MCFSIM_IMR); } void mcf_maskimr(unsigned int mask) { u32 imr; - imr = __raw_readl(MCF_MBAR + MCFSIM_IMR); + imr = __raw_readl(MCFSIM_IMR); imr |= mask; - __raw_writel(imr, MCF_MBAR + MCFSIM_IMR); + __raw_writel(imr, MCFSIM_IMR); } #endif @@ -104,9 +104,9 @@ void mcf_autovector(int irq) #ifdef MCFSIM_AVR if ((irq >= EIRQ1) && (irq <= EIRQ7)) { u8 avec; - avec = __raw_readb(MCF_MBAR + MCFSIM_AVR); + avec = __raw_readb(MCFSIM_AVR); avec |= (0x1 << (irq - EIRQ1 + 1)); - __raw_writeb(avec, MCF_MBAR + MCFSIM_AVR); + __raw_writeb(avec, MCFSIM_AVR); } #endif } diff --git a/arch/m68k/platform/coldfire/m5206.c b/arch/m68k/platform/coldfire/m5206.c index a8b81df653f..0e55f449a88 100644 --- a/arch/m68k/platform/coldfire/m5206.c +++ b/arch/m68k/platform/coldfire/m5206.c @@ -16,16 +16,27 @@ #include <asm/machdep.h> #include <asm/coldfire.h> #include <asm/mcfsim.h> -#include <asm/mcfgpio.h> +#include <asm/mcfclk.h> /***************************************************************************/ -struct mcf_gpio_chip mcf_gpio_chips[] = { - MCFGPS(PP, 0, 8, MCFSIM_PADDR, MCFSIM_PADAT, MCFSIM_PADAT), +DEFINE_CLK(pll, "pll.0", MCF_CLK); +DEFINE_CLK(sys, "sys.0", MCF_BUSCLK); +DEFINE_CLK(mcftmr0, "mcftmr.0", MCF_BUSCLK); +DEFINE_CLK(mcftmr1, "mcftmr.1", MCF_BUSCLK); +DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK); +DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK); + +struct clk *mcf_clks[] = { + &clk_pll, + &clk_sys, + &clk_mcftmr0, + &clk_mcftmr1, + &clk_mcfuart0, + &clk_mcfuart1, + NULL }; -unsigned int mcf_gpio_chips_size = ARRAY_SIZE(mcf_gpio_chips); - /***************************************************************************/ void __init config_BSP(char *commandp, int size) diff --git a/arch/m68k/platform/coldfire/m520x.c b/arch/m68k/platform/coldfire/m520x.c index 3264b8883d5..4040a3c9373 100644 --- a/arch/m68k/platform/coldfire/m520x.c +++ b/arch/m68k/platform/coldfire/m520x.c @@ -19,29 +19,108 @@ #include <asm/coldfire.h> #include <asm/mcfsim.h> #include <asm/mcfuart.h> -#include <asm/mcfgpio.h> +#include <asm/mcfclk.h> /***************************************************************************/ -struct mcf_gpio_chip mcf_gpio_chips[] = { - MCFGPS(PIRQ, 0, 8, MCFEPORT_EPDDR, MCFEPORT_EPDR, MCFEPORT_EPPDR), - MCFGPF(CS, 9, 3), - MCFGPF(FECI2C, 16, 4), - MCFGPF(QSPI, 24, 4), - MCFGPF(TIMER, 32, 4), - MCFGPF(UART, 40, 8), - MCFGPF(FECH, 48, 8), - MCFGPF(FECL, 56, 8), +DEFINE_CLK(0, "flexbus", 2, MCF_CLK); +DEFINE_CLK(0, "fec.0", 12, MCF_CLK); +DEFINE_CLK(0, "edma", 17, MCF_CLK); +DEFINE_CLK(0, "intc.0", 18, MCF_CLK); +DEFINE_CLK(0, "iack.0", 21, MCF_CLK); +DEFINE_CLK(0, "mcfi2c.0", 22, MCF_CLK); +DEFINE_CLK(0, "mcfqspi.0", 23, MCF_CLK); +DEFINE_CLK(0, "mcfuart.0", 24, MCF_BUSCLK); +DEFINE_CLK(0, "mcfuart.1", 25, MCF_BUSCLK); +DEFINE_CLK(0, "mcfuart.2", 26, MCF_BUSCLK); +DEFINE_CLK(0, "mcftmr.0", 28, MCF_CLK); +DEFINE_CLK(0, "mcftmr.1", 29, MCF_CLK); +DEFINE_CLK(0, "mcftmr.2", 30, MCF_CLK); +DEFINE_CLK(0, "mcftmr.3", 31, MCF_CLK); + +DEFINE_CLK(0, "mcfpit.0", 32, MCF_CLK); +DEFINE_CLK(0, "mcfpit.1", 33, MCF_CLK); +DEFINE_CLK(0, "mcfeport.0", 34, MCF_CLK); +DEFINE_CLK(0, "mcfwdt.0", 35, MCF_CLK); +DEFINE_CLK(0, "pll.0", 36, MCF_CLK); +DEFINE_CLK(0, "sys.0", 40, MCF_BUSCLK); +DEFINE_CLK(0, "gpio.0", 41, MCF_BUSCLK); +DEFINE_CLK(0, "sdram.0", 42, MCF_CLK); + +struct clk *mcf_clks[] = { + &__clk_0_2, /* flexbus */ + &__clk_0_12, /* fec.0 */ + &__clk_0_17, /* edma */ + &__clk_0_18, /* intc.0 */ + &__clk_0_21, /* iack.0 */ + &__clk_0_22, /* mcfi2c.0 */ + &__clk_0_23, /* mcfqspi.0 */ + &__clk_0_24, /* mcfuart.0 */ + &__clk_0_25, /* mcfuart.1 */ + &__clk_0_26, /* mcfuart.2 */ + &__clk_0_28, /* mcftmr.0 */ + &__clk_0_29, /* mcftmr.1 */ + &__clk_0_30, /* mcftmr.2 */ + &__clk_0_31, /* mcftmr.3 */ + + &__clk_0_32, /* mcfpit.0 */ + &__clk_0_33, /* mcfpit.1 */ + &__clk_0_34, /* mcfeport.0 */ + &__clk_0_35, /* mcfwdt.0 */ + &__clk_0_36, /* pll.0 */ + &__clk_0_40, /* sys.0 */ + &__clk_0_41, /* gpio.0 */ + &__clk_0_42, /* sdram.0 */ +NULL, }; -unsigned int mcf_gpio_chips_size = ARRAY_SIZE(mcf_gpio_chips); +static struct clk * const enable_clks[] __initconst = { + &__clk_0_2, /* flexbus */ + &__clk_0_18, /* intc.0 */ + &__clk_0_21, /* iack.0 */ + &__clk_0_24, /* mcfuart.0 */ + &__clk_0_25, /* mcfuart.1 */ + &__clk_0_26, /* mcfuart.2 */ + + &__clk_0_32, /* mcfpit.0 */ + &__clk_0_33, /* mcfpit.1 */ + &__clk_0_34, /* mcfeport.0 */ + &__clk_0_36, /* pll.0 */ + &__clk_0_40, /* sys.0 */ + &__clk_0_41, /* gpio.0 */ + &__clk_0_42, /* sdram.0 */ +}; -/***************************************************************************/ +static struct clk * const disable_clks[] __initconst = { + &__clk_0_12, /* fec.0 */ + &__clk_0_17, /* edma */ + &__clk_0_22, /* mcfi2c.0 */ + &__clk_0_23, /* mcfqspi.0 */ + &__clk_0_28, /* mcftmr.0 */ + &__clk_0_29, /* mcftmr.1 */ + &__clk_0_30, /* mcftmr.2 */ + &__clk_0_31, /* mcftmr.3 */ + &__clk_0_35, /* mcfwdt.0 */ +}; -#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) + +static void __init m520x_clk_init(void) +{ + unsigned i; + + /* make sure these clocks are enabled */ + for (i = 0; i < ARRAY_SIZE(enable_clks); ++i) + __clk_init_enabled(enable_clks[i]); + /* make sure these clocks are disabled */ + for (i = 0; i < ARRAY_SIZE(disable_clks); ++i) + __clk_init_disabled(disable_clks[i]); +} + +/***************************************************************************/ static void __init m520x_qspi_init(void) { +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) u16 par; /* setup Port QS for QSPI with gpio CS control */ writeb(0x3f, MCF_GPIO_PAR_QSPI); @@ -49,9 +128,8 @@ static void __init m520x_qspi_init(void) par = readw(MCF_GPIO_PAR_UART); par &= 0x00ff; writew(par, MCF_GPIO_PAR_UART); -} - #endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */ +} /***************************************************************************/ @@ -93,11 +171,10 @@ static void __init m520x_fec_init(void) void __init config_BSP(char *commandp, int size) { mach_sched_init = hw_timer_init; + m520x_clk_init(); m520x_uarts_init(); m520x_fec_init(); -#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) m520x_qspi_init(); -#endif } /***************************************************************************/ diff --git a/arch/m68k/platform/coldfire/m523x.c b/arch/m68k/platform/coldfire/m523x.c index 5d57a424941..6b7135e6d5b 100644 --- a/arch/m68k/platform/coldfire/m523x.c +++ b/arch/m68k/platform/coldfire/m523x.c @@ -19,35 +19,42 @@ #include <asm/machdep.h> #include <asm/coldfire.h> #include <asm/mcfsim.h> -#include <asm/mcfgpio.h> +#include <asm/mcfclk.h> /***************************************************************************/ -struct mcf_gpio_chip mcf_gpio_chips[] = { - MCFGPS(PIRQ, 1, 7, MCFEPORT_EPDDR, MCFEPORT_EPDR, MCFEPORT_EPPDR), - MCFGPF(ADDR, 13, 3), - MCFGPF(DATAH, 16, 8), - MCFGPF(DATAL, 24, 8), - MCFGPF(BUSCTL, 32, 8), - MCFGPF(BS, 40, 4), - MCFGPF(CS, 49, 7), - MCFGPF(SDRAM, 56, 6), - MCFGPF(FECI2C, 64, 4), - MCFGPF(UARTH, 72, 2), - MCFGPF(UARTL, 80, 8), - MCFGPF(QSPI, 88, 5), - MCFGPF(TIMER, 96, 8), - MCFGPF(ETPU, 104, 3), +DEFINE_CLK(pll, "pll.0", MCF_CLK); +DEFINE_CLK(sys, "sys.0", MCF_BUSCLK); +DEFINE_CLK(mcfpit0, "mcfpit.0", MCF_CLK); +DEFINE_CLK(mcfpit1, "mcfpit.1", MCF_CLK); +DEFINE_CLK(mcfpit2, "mcfpit.2", MCF_CLK); +DEFINE_CLK(mcfpit3, "mcfpit.3", MCF_CLK); +DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK); +DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK); +DEFINE_CLK(mcfuart2, "mcfuart.2", MCF_BUSCLK); +DEFINE_CLK(mcfqspi0, "mcfqspi.0", MCF_BUSCLK); +DEFINE_CLK(fec0, "fec.0", MCF_BUSCLK); + +struct clk *mcf_clks[] = { + &clk_pll, + &clk_sys, + &clk_mcfpit0, + &clk_mcfpit1, + &clk_mcfpit2, + &clk_mcfpit3, + &clk_mcfuart0, + &clk_mcfuart1, + &clk_mcfuart2, + &clk_mcfqspi0, + &clk_fec0, + NULL }; -unsigned int mcf_gpio_chips_size = ARRAY_SIZE(mcf_gpio_chips); - /***************************************************************************/ -#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) - static void __init m523x_qspi_init(void) { +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) u16 par; /* setup QSPS pins for QSPI with gpio CS control */ @@ -56,22 +63,15 @@ static void __init m523x_qspi_init(void) par = readw(MCFGPIO_PAR_TIMER); par &= 0x3f3f; writew(par, MCFGPIO_PAR_TIMER); -} - #endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */ +} /***************************************************************************/ static void __init m523x_fec_init(void) { - u16 par; - u8 v; - /* Set multi-function pins to ethernet use */ - par = readw(MCF_IPSBAR + 0x100082); - writew(par | 0xf00, MCF_IPSBAR + 0x100082); - v = readb(MCF_IPSBAR + 0x100078); - writeb(v | 0xc0, MCF_IPSBAR + 0x100078); + writeb(readb(MCFGPIO_PAR_FECI2C) | 0xf0, MCFGPIO_PAR_FECI2C); } /***************************************************************************/ @@ -80,9 +80,7 @@ void __init config_BSP(char *commandp, int size) { mach_sched_init = hw_timer_init; m523x_fec_init(); -#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) m523x_qspi_init(); -#endif } /***************************************************************************/ diff --git a/arch/m68k/platform/coldfire/m5249.c b/arch/m68k/platform/coldfire/m5249.c index fdfa1edfd1a..f6253a3313b 100644 --- a/arch/m68k/platform/coldfire/m5249.c +++ b/arch/m68k/platform/coldfire/m5249.c @@ -16,17 +16,29 @@ #include <asm/machdep.h> #include <asm/coldfire.h> #include <asm/mcfsim.h> -#include <asm/mcfgpio.h> +#include <asm/mcfclk.h> /***************************************************************************/ -struct mcf_gpio_chip mcf_gpio_chips[] = { - MCFGPS(GPIO0, 0, 32, MCFSIM2_GPIOENABLE, MCFSIM2_GPIOWRITE, MCFSIM2_GPIOREAD), - MCFGPS(GPIO1, 32, 32, MCFSIM2_GPIO1ENABLE, MCFSIM2_GPIO1WRITE, MCFSIM2_GPIO1READ), +DEFINE_CLK(pll, "pll.0", MCF_CLK); +DEFINE_CLK(sys, "sys.0", MCF_BUSCLK); +DEFINE_CLK(mcftmr0, "mcftmr.0", MCF_BUSCLK); +DEFINE_CLK(mcftmr1, "mcftmr.1", MCF_BUSCLK); +DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK); +DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK); +DEFINE_CLK(mcfqspi0, "mcfqspi.0", MCF_BUSCLK); + +struct clk *mcf_clks[] = { + &clk_pll, + &clk_sys, + &clk_mcftmr0, + &clk_mcftmr1, + &clk_mcfuart0, + &clk_mcfuart1, + &clk_mcfqspi0, + NULL }; -unsigned int mcf_gpio_chips_size = ARRAY_SIZE(mcf_gpio_chips); - /***************************************************************************/ #ifdef CONFIG_M5249C3 @@ -38,8 +50,8 @@ static struct resource m5249_smc91x_resources[] = { .flags = IORESOURCE_MEM, }, { - .start = MCFINTC2_GPIOIRQ6, - .end = MCFINTC2_GPIOIRQ6, + .start = MCF_IRQ_GPIO6, + .end = MCF_IRQ_GPIO6, .flags = IORESOURCE_IRQ, }, }; @@ -61,17 +73,15 @@ static struct platform_device *m5249_devices[] __initdata = { /***************************************************************************/ -#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) - static void __init m5249_qspi_init(void) { +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) /* QSPI irq setup */ writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL4 | MCFSIM_ICR_PRI0, - MCF_MBAR + MCFSIM_QSPIICR); + MCFSIM_QSPIICR); mcf_mapirq2imr(MCF_IRQ_QSPI, MCFINTC_QSPI); -} - #endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */ +} /***************************************************************************/ @@ -82,11 +92,11 @@ static void __init m5249_smc91x_init(void) u32 gpio; /* Set the GPIO line as interrupt source for smc91x device */ - gpio = readl(MCF_MBAR2 + MCFSIM2_GPIOINTENABLE); - writel(gpio | 0x40, MCF_MBAR2 + MCFSIM2_GPIOINTENABLE); + gpio = readl(MCFSIM2_GPIOINTENABLE); + writel(gpio | 0x40, MCFSIM2_GPIOINTENABLE); - gpio = readl(MCF_MBAR2 + MCFSIM2_INTLEVEL5); - writel(gpio | 0x04000000, MCF_MBAR2 + MCFSIM2_INTLEVEL5); + gpio = readl(MCFINTC2_INTPRI5); + writel(gpio | 0x04000000, MCFINTC2_INTPRI5); } #endif /* CONFIG_M5249C3 */ @@ -100,9 +110,7 @@ void __init config_BSP(char *commandp, int size) #ifdef CONFIG_M5249C3 m5249_smc91x_init(); #endif -#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) m5249_qspi_init(); -#endif } /***************************************************************************/ diff --git a/arch/m68k/platform/coldfire/m525x.c b/arch/m68k/platform/coldfire/m525x.c new file mode 100644 index 00000000000..1adba390903 --- /dev/null +++ b/arch/m68k/platform/coldfire/m525x.c @@ -0,0 +1,88 @@ +/***************************************************************************/ + +/* + * 525x.c + * + * Copyright (C) 2012, Steven King <sfking@fdwdc.com> + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/platform_device.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfclk.h> + +/***************************************************************************/ + +DEFINE_CLK(pll, "pll.0", MCF_CLK); +DEFINE_CLK(sys, "sys.0", MCF_BUSCLK); +DEFINE_CLK(mcftmr0, "mcftmr.0", MCF_BUSCLK); +DEFINE_CLK(mcftmr1, "mcftmr.1", MCF_BUSCLK); +DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK); +DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK); +DEFINE_CLK(mcfqspi0, "mcfqspi.0", MCF_BUSCLK); + +struct clk *mcf_clks[] = { + &clk_pll, + &clk_sys, + &clk_mcftmr0, + &clk_mcftmr1, + &clk_mcfuart0, + &clk_mcfuart1, + &clk_mcfqspi0, + NULL +}; + +/***************************************************************************/ + +static void __init m525x_qspi_init(void) +{ +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) + /* set the GPIO function for the qspi cs gpios */ + /* FIXME: replace with pinmux/pinctl support */ + u32 f = readl(MCFSIM2_GPIOFUNC); + f |= (1 << MCFQSPI_CS2) | (1 << MCFQSPI_CS1) | (1 << MCFQSPI_CS0); + writel(f, MCFSIM2_GPIOFUNC); + + /* QSPI irq setup */ + writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL4 | MCFSIM_ICR_PRI0, + MCFSIM_QSPIICR); + mcf_mapirq2imr(MCF_IRQ_QSPI, MCFINTC_QSPI); +#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */ +} + +static void __init m525x_i2c_init(void) +{ +#if IS_ENABLED(CONFIG_I2C_COLDFIRE) + u32 r; + + /* first I2C controller uses regular irq setup */ + writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL5 | MCFSIM_ICR_PRI0, + MCFSIM_I2CICR); + mcf_mapirq2imr(MCF_IRQ_I2C0, MCFINTC_I2C); + + /* second I2C controller is completely different */ + r = readl(MCFINTC2_INTPRI_REG(MCF_IRQ_I2C1)); + r &= ~MCFINTC2_INTPRI_BITS(0xf, MCF_IRQ_I2C1); + r |= MCFINTC2_INTPRI_BITS(0x5, MCF_IRQ_I2C1); + writel(r, MCFINTC2_INTPRI_REG(MCF_IRQ_I2C1)); +#endif /* IS_ENABLED(CONFIG_I2C_COLDFIRE) */ +} + +/***************************************************************************/ + +void __init config_BSP(char *commandp, int size) +{ + mach_sched_init = hw_timer_init; + + m525x_qspi_init(); + m525x_i2c_init(); +} + +/***************************************************************************/ diff --git a/arch/m68k/platform/coldfire/m5272.c b/arch/m68k/platform/coldfire/m5272.c index 43e36060da1..8a4d3cc322c 100644 --- a/arch/m68k/platform/coldfire/m5272.c +++ b/arch/m68k/platform/coldfire/m5272.c @@ -19,7 +19,7 @@ #include <asm/coldfire.h> #include <asm/mcfsim.h> #include <asm/mcfuart.h> -#include <asm/mcfgpio.h> +#include <asm/mcfclk.h> /***************************************************************************/ @@ -31,14 +31,31 @@ unsigned char ledbank = 0xff; /***************************************************************************/ -struct mcf_gpio_chip mcf_gpio_chips[] = { - MCFGPS(PA, 0, 16, MCFSIM_PADDR, MCFSIM_PADAT, MCFSIM_PADAT), - MCFGPS(PB, 16, 16, MCFSIM_PBDDR, MCFSIM_PBDAT, MCFSIM_PBDAT), - MCFGPS(Pc, 32, 16, MCFSIM_PCDDR, MCFSIM_PCDAT, MCFSIM_PCDAT), +DEFINE_CLK(pll, "pll.0", MCF_CLK); +DEFINE_CLK(sys, "sys.0", MCF_BUSCLK); +DEFINE_CLK(mcftmr0, "mcftmr.0", MCF_BUSCLK); +DEFINE_CLK(mcftmr1, "mcftmr.1", MCF_BUSCLK); +DEFINE_CLK(mcftmr2, "mcftmr.2", MCF_BUSCLK); +DEFINE_CLK(mcftmr3, "mcftmr.3", MCF_BUSCLK); +DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK); +DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK); +DEFINE_CLK(mcfqspi0, "mcfqspi.0", MCF_BUSCLK); +DEFINE_CLK(fec0, "fec.0", MCF_BUSCLK); + +struct clk *mcf_clks[] = { + &clk_pll, + &clk_sys, + &clk_mcftmr0, + &clk_mcftmr1, + &clk_mcftmr2, + &clk_mcftmr3, + &clk_mcfuart0, + &clk_mcfuart1, + &clk_mcfqspi0, + &clk_fec0, + NULL }; -unsigned int mcf_gpio_chips_size = ARRAY_SIZE(mcf_gpio_chips); - /***************************************************************************/ static void __init m5272_uarts_init(void) @@ -46,13 +63,13 @@ static void __init m5272_uarts_init(void) u32 v; /* Enable the output lines for the serial ports */ - v = readl(MCF_MBAR + MCFSIM_PBCNT); + v = readl(MCFSIM_PBCNT); v = (v & ~0x000000ff) | 0x00000055; - writel(v, MCF_MBAR + MCFSIM_PBCNT); + writel(v, MCFSIM_PBCNT); - v = readl(MCF_MBAR + MCFSIM_PDCNT); + v = readl(MCFSIM_PDCNT); v = (v & ~0x000003fc) | 0x000002a8; - writel(v, MCF_MBAR + MCFSIM_PDCNT); + writel(v, MCFSIM_PDCNT); } /***************************************************************************/ @@ -61,9 +78,9 @@ static void m5272_cpu_reset(void) { local_irq_disable(); /* Set watchdog to reset, and enabled */ - __raw_writew(0, MCF_MBAR + MCFSIM_WIRR); - __raw_writew(1, MCF_MBAR + MCFSIM_WRRR); - __raw_writew(0, MCF_MBAR + MCFSIM_WCR); + __raw_writew(0, MCFSIM_WIRR); + __raw_writew(1, MCFSIM_WRRR); + __raw_writew(0, MCFSIM_WCR); for (;;) /* wait for watchdog to timeout */; } @@ -73,11 +90,8 @@ static void m5272_cpu_reset(void) void __init config_BSP(char *commandp, int size) { #if defined (CONFIG_MOD5272) - volatile unsigned char *pivrp; - /* Set base of device vectors to be 64 */ - pivrp = (volatile unsigned char *) (MCF_MBAR + MCFSIM_PIVR); - *pivrp = 0x40; + writeb(0x40, MCFSIM_PIVR); #endif #if defined(CONFIG_NETtel) || defined(CONFIG_SCALES) diff --git a/arch/m68k/platform/coldfire/m527x.c b/arch/m68k/platform/coldfire/m527x.c index 9b0b66aabd1..62d81ef016f 100644 --- a/arch/m68k/platform/coldfire/m527x.c +++ b/arch/m68k/platform/coldfire/m527x.c @@ -20,56 +20,44 @@ #include <asm/coldfire.h> #include <asm/mcfsim.h> #include <asm/mcfuart.h> -#include <asm/mcfgpio.h> +#include <asm/mcfclk.h> /***************************************************************************/ -struct mcf_gpio_chip mcf_gpio_chips[] = { -#if defined(CONFIG_M5271) - MCFGPS(PIRQ, 1, 7, MCFEPORT_EPDDR, MCFEPORT_EPDR, MCFEPORT_EPPDR), - MCFGPF(ADDR, 13, 3), - MCFGPF(DATAH, 16, 8), - MCFGPF(DATAL, 24, 8), - MCFGPF(BUSCTL, 32, 8), - MCFGPF(BS, 40, 4), - MCFGPF(CS, 49, 7), - MCFGPF(SDRAM, 56, 6), - MCFGPF(FECI2C, 64, 4), - MCFGPF(UARTH, 72, 2), - MCFGPF(UARTL, 80, 8), - MCFGPF(QSPI, 88, 5), - MCFGPF(TIMER, 96, 8), -#elif defined(CONFIG_M5275) - MCFGPS(PIRQ, 1, 7, MCFEPORT_EPDDR, MCFEPORT_EPDR, MCFEPORT_EPPDR), - MCFGPF(BUSCTL, 8, 8), - MCFGPF(ADDR, 21, 3), - MCFGPF(CS, 25, 7), - MCFGPF(FEC0H, 32, 8), - MCFGPF(FEC0L, 40, 8), - MCFGPF(FECI2C, 48, 6), - MCFGPF(QSPI, 56, 7), - MCFGPF(SDRAM, 64, 8), - MCFGPF(TIMERH, 72, 4), - MCFGPF(TIMERL, 80, 4), - MCFGPF(UARTL, 88, 8), - MCFGPF(FEC1H, 96, 8), - MCFGPF(FEC1L, 104, 8), - MCFGPF(BS, 114, 2), - MCFGPF(IRQ, 121, 7), - MCFGPF(USBH, 128, 1), - MCFGPF(USBL, 136, 8), - MCFGPF(UARTH, 144, 4), -#endif +DEFINE_CLK(pll, "pll.0", MCF_CLK); +DEFINE_CLK(sys, "sys.0", MCF_BUSCLK); +DEFINE_CLK(mcfpit0, "mcfpit.0", MCF_CLK); +DEFINE_CLK(mcfpit1, "mcfpit.1", MCF_CLK); +DEFINE_CLK(mcfpit2, "mcfpit.2", MCF_CLK); +DEFINE_CLK(mcfpit3, "mcfpit.3", MCF_CLK); +DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK); +DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK); +DEFINE_CLK(mcfuart2, "mcfuart.2", MCF_BUSCLK); +DEFINE_CLK(mcfqspi0, "mcfqspi.0", MCF_BUSCLK); +DEFINE_CLK(fec0, "fec.0", MCF_BUSCLK); +DEFINE_CLK(fec1, "fec.1", MCF_BUSCLK); + +struct clk *mcf_clks[] = { + &clk_pll, + &clk_sys, + &clk_mcfpit0, + &clk_mcfpit1, + &clk_mcfpit2, + &clk_mcfpit3, + &clk_mcfuart0, + &clk_mcfuart1, + &clk_mcfuart2, + &clk_mcfqspi0, + &clk_fec0, + &clk_fec1, + NULL }; -unsigned int mcf_gpio_chips_size = ARRAY_SIZE(mcf_gpio_chips); - /***************************************************************************/ -#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) - static void __init m527x_qspi_init(void) { +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) #if defined(CONFIG_M5271) u16 par; @@ -83,9 +71,8 @@ static void __init m527x_qspi_init(void) /* setup QSPS pins for QSPI with gpio CS control */ writew(0x003e, MCFGPIO_PAR_QSPI); #endif -} - #endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */ +} /***************************************************************************/ @@ -96,9 +83,9 @@ static void __init m527x_uarts_init(void) /* * External Pin Mask Setting & Enable External Pin for Interface */ - sepmask = readw(MCF_IPSBAR + MCF_GPIO_PAR_UART); + sepmask = readw(MCFGPIO_PAR_UART); sepmask |= UART0_ENABLE_MASK | UART1_ENABLE_MASK | UART2_ENABLE_MASK; - writew(sepmask, MCF_IPSBAR + MCF_GPIO_PAR_UART); + writew(sepmask, MCFGPIO_PAR_UART); } /***************************************************************************/ @@ -110,19 +97,19 @@ static void __init m527x_fec_init(void) /* Set multi-function pins to ethernet mode for fec0 */ #if defined(CONFIG_M5271) - v = readb(MCF_IPSBAR + 0x100047); - writeb(v | 0xf0, MCF_IPSBAR + 0x100047); + v = readb(MCFGPIO_PAR_FECI2C); + writeb(v | 0xf0, MCFGPIO_PAR_FECI2C); #else - par = readw(MCF_IPSBAR + 0x100082); - writew(par | 0xf00, MCF_IPSBAR + 0x100082); - v = readb(MCF_IPSBAR + 0x100078); - writeb(v | 0xc0, MCF_IPSBAR + 0x100078); + par = readw(MCFGPIO_PAR_FECI2C); + writew(par | 0xf00, MCFGPIO_PAR_FECI2C); + v = readb(MCFGPIO_PAR_FEC0HL); + writeb(v | 0xc0, MCFGPIO_PAR_FEC0HL); /* Set multi-function pins to ethernet mode for fec1 */ - par = readw(MCF_IPSBAR + 0x100082); - writew(par | 0xa0, MCF_IPSBAR + 0x100082); - v = readb(MCF_IPSBAR + 0x100079); - writeb(v | 0xc0, MCF_IPSBAR + 0x100079); + par = readw(MCFGPIO_PAR_FECI2C); + writew(par | 0xa0, MCFGPIO_PAR_FECI2C); + v = readb(MCFGPIO_PAR_FEC1HL); + writeb(v | 0xc0, MCFGPIO_PAR_FEC1HL); #endif } @@ -133,9 +120,7 @@ void __init config_BSP(char *commandp, int size) mach_sched_init = hw_timer_init; m527x_uarts_init(); m527x_fec_init(); -#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) m527x_qspi_init(); -#endif } /***************************************************************************/ diff --git a/arch/m68k/platform/coldfire/m528x.c b/arch/m68k/platform/coldfire/m528x.c index 7ed1276b29d..21cd161d36f 100644 --- a/arch/m68k/platform/coldfire/m528x.c +++ b/arch/m68k/platform/coldfire/m528x.c @@ -21,49 +21,46 @@ #include <asm/coldfire.h> #include <asm/mcfsim.h> #include <asm/mcfuart.h> -#include <asm/mcfgpio.h> +#include <asm/mcfclk.h> /***************************************************************************/ -struct mcf_gpio_chip mcf_gpio_chips[] = { - MCFGPS(NQ, 1, 7, MCFEPORT_EPDDR, MCFEPORT_EPDR, MCFEPORT_EPPDR), - MCFGPS(TA, 8, 4, MCFGPTA_GPTDDR, MCFGPTA_GPTPORT, MCFGPTB_GPTPORT), - MCFGPS(TB, 16, 4, MCFGPTB_GPTDDR, MCFGPTB_GPTPORT, MCFGPTB_GPTPORT), - MCFGPS(QA, 24, 4, MCFQADC_DDRQA, MCFQADC_PORTQA, MCFQADC_PORTQA), - MCFGPS(QB, 32, 4, MCFQADC_DDRQB, MCFQADC_PORTQB, MCFQADC_PORTQB), - MCFGPF(A, 40, 8), - MCFGPF(B, 48, 8), - MCFGPF(C, 56, 8), - MCFGPF(D, 64, 8), - MCFGPF(E, 72, 8), - MCFGPF(F, 80, 8), - MCFGPF(G, 88, 8), - MCFGPF(H, 96, 8), - MCFGPF(J, 104, 8), - MCFGPF(DD, 112, 8), - MCFGPF(EH, 120, 8), - MCFGPF(EL, 128, 8), - MCFGPF(AS, 136, 6), - MCFGPF(QS, 144, 7), - MCFGPF(SD, 152, 6), - MCFGPF(TC, 160, 4), - MCFGPF(TD, 168, 4), - MCFGPF(UA, 176, 4), +DEFINE_CLK(pll, "pll.0", MCF_CLK); +DEFINE_CLK(sys, "sys.0", MCF_BUSCLK); +DEFINE_CLK(mcfpit0, "mcfpit.0", MCF_CLK); +DEFINE_CLK(mcfpit1, "mcfpit.1", MCF_CLK); +DEFINE_CLK(mcfpit2, "mcfpit.2", MCF_CLK); +DEFINE_CLK(mcfpit3, "mcfpit.3", MCF_CLK); +DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK); +DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK); +DEFINE_CLK(mcfuart2, "mcfuart.2", MCF_BUSCLK); +DEFINE_CLK(mcfqspi0, "mcfqspi.0", MCF_BUSCLK); +DEFINE_CLK(fec0, "fec.0", MCF_BUSCLK); + +struct clk *mcf_clks[] = { + &clk_pll, + &clk_sys, + &clk_mcfpit0, + &clk_mcfpit1, + &clk_mcfpit2, + &clk_mcfpit3, + &clk_mcfuart0, + &clk_mcfuart1, + &clk_mcfuart2, + &clk_mcfqspi0, + &clk_fec0, + NULL }; -unsigned int mcf_gpio_chips_size = ARRAY_SIZE(mcf_gpio_chips); - /***************************************************************************/ -#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) - static void __init m528x_qspi_init(void) { +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) /* setup Port QS for QSPI with gpio CS control */ __raw_writeb(0x07, MCFGPIO_PQSPAR); -} - #endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */ +} /***************************************************************************/ @@ -72,9 +69,9 @@ static void __init m528x_uarts_init(void) u8 port; /* make sure PUAPAR is set for UART0 and UART1 */ - port = readb(MCF5282_GPIO_PUAPAR); + port = readb(MCFGPIO_PUAPAR); port |= 0x03 | (0x03 << 2); - writeb(port, MCF5282_GPIO_PUAPAR); + writeb(port, MCFGPIO_PUAPAR); } /***************************************************************************/ @@ -84,9 +81,9 @@ static void __init m528x_fec_init(void) u16 v16; /* Set multi-function pins to ethernet mode for fec0 */ - v16 = readw(MCF_IPSBAR + 0x100056); - writew(v16 | 0xf00, MCF_IPSBAR + 0x100056); - writeb(0xc0, MCF_IPSBAR + 0x100058); + v16 = readw(MCFGPIO_PASPAR); + writew(v16 | 0xf00, MCFGPIO_PASPAR); + writeb(0xc0, MCFGPIO_PEHLPAR); } /***************************************************************************/ @@ -129,9 +126,7 @@ void __init config_BSP(char *commandp, int size) mach_sched_init = hw_timer_init; m528x_uarts_init(); m528x_fec_init(); -#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) m528x_qspi_init(); -#endif } /***************************************************************************/ diff --git a/arch/m68k/platform/coldfire/m5307.c b/arch/m68k/platform/coldfire/m5307.c index 93b484976ab..88743536138 100644 --- a/arch/m68k/platform/coldfire/m5307.c +++ b/arch/m68k/platform/coldfire/m5307.c @@ -16,8 +16,8 @@ #include <asm/machdep.h> #include <asm/coldfire.h> #include <asm/mcfsim.h> -#include <asm/mcfgpio.h> #include <asm/mcfwdebug.h> +#include <asm/mcfclk.h> /***************************************************************************/ @@ -29,11 +29,22 @@ unsigned char ledbank = 0xff; /***************************************************************************/ -struct mcf_gpio_chip mcf_gpio_chips[] = { - MCFGPS(PP, 0, 16, MCFSIM_PADDR, MCFSIM_PADAT, MCFSIM_PADAT), -}; +DEFINE_CLK(pll, "pll.0", MCF_CLK); +DEFINE_CLK(sys, "sys.0", MCF_BUSCLK); +DEFINE_CLK(mcftmr0, "mcftmr.0", MCF_BUSCLK); +DEFINE_CLK(mcftmr1, "mcftmr.1", MCF_BUSCLK); +DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK); +DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK); -unsigned int mcf_gpio_chips_size = ARRAY_SIZE(mcf_gpio_chips); +struct clk *mcf_clks[] = { + &clk_pll, + &clk_sys, + &clk_mcftmr0, + &clk_mcftmr1, + &clk_mcfuart0, + &clk_mcfuart1, + NULL +}; /***************************************************************************/ diff --git a/arch/m68k/platform/coldfire/m532x.c b/arch/m68k/platform/coldfire/m532x.c deleted file mode 100644 index 5394223639f..00000000000 --- a/arch/m68k/platform/coldfire/m532x.c +++ /dev/null @@ -1,476 +0,0 @@ -/***************************************************************************/ - -/* - * linux/arch/m68knommu/platform/532x/config.c - * - * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) - * Copyright (C) 2000, Lineo (www.lineo.com) - * Yaroslav Vinogradov yaroslav.vinogradov@freescale.com - * Copyright Freescale Semiconductor, Inc 2006 - * Copyright (c) 2006, emlix, Sebastian Hess <shess@hessware.de> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> -#include <linux/io.h> -#include <asm/machdep.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfuart.h> -#include <asm/mcfdma.h> -#include <asm/mcfgpio.h> -#include <asm/mcfwdebug.h> - -/***************************************************************************/ - -struct mcf_gpio_chip mcf_gpio_chips[] = { - MCFGPS(PIRQ, 0, 8, MCFEPORT_EPDDR, MCFEPORT_EPDR, MCFEPORT_EPPDR), - MCFGPF(FECH, 8, 8), - MCFGPF(FECL, 16, 8), - MCFGPF(SSI, 24, 5), - MCFGPF(BUSCTL, 32, 4), - MCFGPF(BE, 40, 4), - MCFGPF(CS, 49, 5), - MCFGPF(PWM, 58, 4), - MCFGPF(FECI2C, 64, 4), - MCFGPF(UART, 72, 8), - MCFGPF(QSPI, 80, 6), - MCFGPF(TIMER, 88, 4), - MCFGPF(LCDDATAH, 96, 2), - MCFGPF(LCDDATAM, 104, 8), - MCFGPF(LCDDATAL, 112, 8), - MCFGPF(LCDCTLH, 120, 1), - MCFGPF(LCDCTLL, 128, 8), -}; - -unsigned int mcf_gpio_chips_size = ARRAY_SIZE(mcf_gpio_chips); - -/***************************************************************************/ - -#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) - -static void __init m532x_qspi_init(void) -{ - /* setup QSPS pins for QSPI with gpio CS control */ - writew(0x01f0, MCF_GPIO_PAR_QSPI); -} - -#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */ - -/***************************************************************************/ - -static void __init m532x_uarts_init(void) -{ - /* UART GPIO initialization */ - MCF_GPIO_PAR_UART |= 0x0FFF; -} - -/***************************************************************************/ - -static void __init m532x_fec_init(void) -{ - /* Set multi-function pins to ethernet mode for fec0 */ - MCF_GPIO_PAR_FECI2C |= (MCF_GPIO_PAR_FECI2C_PAR_MDC_EMDC | - MCF_GPIO_PAR_FECI2C_PAR_MDIO_EMDIO); - MCF_GPIO_PAR_FEC = (MCF_GPIO_PAR_FEC_PAR_FEC_7W_FEC | - MCF_GPIO_PAR_FEC_PAR_FEC_MII_FEC); -} - -/***************************************************************************/ - -void __init config_BSP(char *commandp, int size) -{ -#if !defined(CONFIG_BOOTPARAM) - /* Copy command line from FLASH to local buffer... */ - memcpy(commandp, (char *) 0x4000, 4); - if(strncmp(commandp, "kcl ", 4) == 0){ - memcpy(commandp, (char *) 0x4004, size); - commandp[size-1] = 0; - } else { - memset(commandp, 0, size); - } -#endif - - mach_sched_init = hw_timer_init; - m532x_uarts_init(); - m532x_fec_init(); -#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) - m532x_qspi_init(); -#endif - -#ifdef CONFIG_BDM_DISABLE - /* - * Disable the BDM clocking. This also turns off most of the rest of - * the BDM device. This is good for EMC reasons. This option is not - * incompatible with the memory protection option. - */ - wdebug(MCFDEBUG_CSR, MCFDEBUG_CSR_PSTCLK); -#endif -} - -/***************************************************************************/ -/* Board initialization */ -/***************************************************************************/ -/* - * PLL min/max specifications - */ -#define MAX_FVCO 500000 /* KHz */ -#define MAX_FSYS 80000 /* KHz */ -#define MIN_FSYS 58333 /* KHz */ -#define FREF 16000 /* KHz */ - - -#define MAX_MFD 135 /* Multiplier */ -#define MIN_MFD 88 /* Multiplier */ -#define BUSDIV 6 /* Divider */ - -/* - * Low Power Divider specifications - */ -#define MIN_LPD (1 << 0) /* Divider (not encoded) */ -#define MAX_LPD (1 << 15) /* Divider (not encoded) */ -#define DEFAULT_LPD (1 << 1) /* Divider (not encoded) */ - -#define SYS_CLK_KHZ 80000 -#define SYSTEM_PERIOD 12.5 -/* - * SDRAM Timing Parameters - */ -#define SDRAM_BL 8 /* # of beats in a burst */ -#define SDRAM_TWR 2 /* in clocks */ -#define SDRAM_CASL 2.5 /* CASL in clocks */ -#define SDRAM_TRCD 2 /* in clocks */ -#define SDRAM_TRP 2 /* in clocks */ -#define SDRAM_TRFC 7 /* in clocks */ -#define SDRAM_TREFI 7800 /* in ns */ - -#define EXT_SRAM_ADDRESS (0xC0000000) -#define FLASH_ADDRESS (0x00000000) -#define SDRAM_ADDRESS (0x40000000) - -#define NAND_FLASH_ADDRESS (0xD0000000) - -int sys_clk_khz = 0; -int sys_clk_mhz = 0; - -void wtm_init(void); -void scm_init(void); -void gpio_init(void); -void fbcs_init(void); -void sdramc_init(void); -int clock_pll (int fsys, int flags); -int clock_limp (int); -int clock_exit_limp (void); -int get_sys_clock (void); - -asmlinkage void __init sysinit(void) -{ - sys_clk_khz = clock_pll(0, 0); - sys_clk_mhz = sys_clk_khz/1000; - - wtm_init(); - scm_init(); - gpio_init(); - fbcs_init(); - sdramc_init(); -} - -void wtm_init(void) -{ - /* Disable watchdog timer */ - MCF_WTM_WCR = 0; -} - -#define MCF_SCM_BCR_GBW (0x00000100) -#define MCF_SCM_BCR_GBR (0x00000200) - -void scm_init(void) -{ - /* All masters are trusted */ - MCF_SCM_MPR = 0x77777777; - - /* Allow supervisor/user, read/write, and trusted/untrusted - access to all slaves */ - MCF_SCM_PACRA = 0; - MCF_SCM_PACRB = 0; - MCF_SCM_PACRC = 0; - MCF_SCM_PACRD = 0; - MCF_SCM_PACRE = 0; - MCF_SCM_PACRF = 0; - - /* Enable bursts */ - MCF_SCM_BCR = (MCF_SCM_BCR_GBR | MCF_SCM_BCR_GBW); -} - - -void fbcs_init(void) -{ - MCF_GPIO_PAR_CS = 0x0000003E; - - /* Latch chip select */ - MCF_FBCS1_CSAR = 0x10080000; - - MCF_FBCS1_CSCR = 0x002A3780; - MCF_FBCS1_CSMR = (MCF_FBCS_CSMR_BAM_2M | MCF_FBCS_CSMR_V); - - /* Initialize latch to drive signals to inactive states */ - *((u16 *)(0x10080000)) = 0xFFFF; - - /* External SRAM */ - MCF_FBCS1_CSAR = EXT_SRAM_ADDRESS; - MCF_FBCS1_CSCR = (MCF_FBCS_CSCR_PS_16 - | MCF_FBCS_CSCR_AA - | MCF_FBCS_CSCR_SBM - | MCF_FBCS_CSCR_WS(1)); - MCF_FBCS1_CSMR = (MCF_FBCS_CSMR_BAM_512K - | MCF_FBCS_CSMR_V); - - /* Boot Flash connected to FBCS0 */ - MCF_FBCS0_CSAR = FLASH_ADDRESS; - MCF_FBCS0_CSCR = (MCF_FBCS_CSCR_PS_16 - | MCF_FBCS_CSCR_BEM - | MCF_FBCS_CSCR_AA - | MCF_FBCS_CSCR_SBM - | MCF_FBCS_CSCR_WS(7)); - MCF_FBCS0_CSMR = (MCF_FBCS_CSMR_BAM_32M - | MCF_FBCS_CSMR_V); -} - -void sdramc_init(void) -{ - /* - * Check to see if the SDRAM has already been initialized - * by a run control tool - */ - if (!(MCF_SDRAMC_SDCR & MCF_SDRAMC_SDCR_REF)) { - /* SDRAM chip select initialization */ - - /* Initialize SDRAM chip select */ - MCF_SDRAMC_SDCS0 = (0 - | MCF_SDRAMC_SDCS_BA(SDRAM_ADDRESS) - | MCF_SDRAMC_SDCS_CSSZ(MCF_SDRAMC_SDCS_CSSZ_32MBYTE)); - - /* - * Basic configuration and initialization - */ - MCF_SDRAMC_SDCFG1 = (0 - | MCF_SDRAMC_SDCFG1_SRD2RW((int)((SDRAM_CASL + 2) + 0.5 )) - | MCF_SDRAMC_SDCFG1_SWT2RD(SDRAM_TWR + 1) - | MCF_SDRAMC_SDCFG1_RDLAT((int)((SDRAM_CASL*2) + 2)) - | MCF_SDRAMC_SDCFG1_ACT2RW((int)((SDRAM_TRCD ) + 0.5)) - | MCF_SDRAMC_SDCFG1_PRE2ACT((int)((SDRAM_TRP ) + 0.5)) - | MCF_SDRAMC_SDCFG1_REF2ACT((int)(((SDRAM_TRFC) ) + 0.5)) - | MCF_SDRAMC_SDCFG1_WTLAT(3)); - MCF_SDRAMC_SDCFG2 = (0 - | MCF_SDRAMC_SDCFG2_BRD2PRE(SDRAM_BL/2 + 1) - | MCF_SDRAMC_SDCFG2_BWT2RW(SDRAM_BL/2 + SDRAM_TWR) - | MCF_SDRAMC_SDCFG2_BRD2WT((int)((SDRAM_CASL+SDRAM_BL/2-1.0)+0.5)) - | MCF_SDRAMC_SDCFG2_BL(SDRAM_BL-1)); - - - /* - * Precharge and enable write to SDMR - */ - MCF_SDRAMC_SDCR = (0 - | MCF_SDRAMC_SDCR_MODE_EN - | MCF_SDRAMC_SDCR_CKE - | MCF_SDRAMC_SDCR_DDR - | MCF_SDRAMC_SDCR_MUX(1) - | MCF_SDRAMC_SDCR_RCNT((int)(((SDRAM_TREFI/(SYSTEM_PERIOD*64)) - 1) + 0.5)) - | MCF_SDRAMC_SDCR_PS_16 - | MCF_SDRAMC_SDCR_IPALL); - - /* - * Write extended mode register - */ - MCF_SDRAMC_SDMR = (0 - | MCF_SDRAMC_SDMR_BNKAD_LEMR - | MCF_SDRAMC_SDMR_AD(0x0) - | MCF_SDRAMC_SDMR_CMD); - - /* - * Write mode register and reset DLL - */ - MCF_SDRAMC_SDMR = (0 - | MCF_SDRAMC_SDMR_BNKAD_LMR - | MCF_SDRAMC_SDMR_AD(0x163) - | MCF_SDRAMC_SDMR_CMD); - - /* - * Execute a PALL command - */ - MCF_SDRAMC_SDCR |= MCF_SDRAMC_SDCR_IPALL; - - /* - * Perform two REF cycles - */ - MCF_SDRAMC_SDCR |= MCF_SDRAMC_SDCR_IREF; - MCF_SDRAMC_SDCR |= MCF_SDRAMC_SDCR_IREF; - - /* - * Write mode register and clear reset DLL - */ - MCF_SDRAMC_SDMR = (0 - | MCF_SDRAMC_SDMR_BNKAD_LMR - | MCF_SDRAMC_SDMR_AD(0x063) - | MCF_SDRAMC_SDMR_CMD); - - /* - * Enable auto refresh and lock SDMR - */ - MCF_SDRAMC_SDCR &= ~MCF_SDRAMC_SDCR_MODE_EN; - MCF_SDRAMC_SDCR |= (0 - | MCF_SDRAMC_SDCR_REF - | MCF_SDRAMC_SDCR_DQS_OE(0xC)); - } -} - -void gpio_init(void) -{ - /* Enable UART0 pins */ - MCF_GPIO_PAR_UART = ( 0 - | MCF_GPIO_PAR_UART_PAR_URXD0 - | MCF_GPIO_PAR_UART_PAR_UTXD0); - - /* Initialize TIN3 as a GPIO output to enable the write - half of the latch */ - MCF_GPIO_PAR_TIMER = 0x00; - __raw_writeb(0x08, MCFGPIO_PDDR_TIMER); - __raw_writeb(0x00, MCFGPIO_PCLRR_TIMER); - -} - -int clock_pll(int fsys, int flags) -{ - int fref, temp, fout, mfd; - u32 i; - - fref = FREF; - - if (fsys == 0) { - /* Return current PLL output */ - mfd = MCF_PLL_PFDR; - - return (fref * mfd / (BUSDIV * 4)); - } - - /* Check bounds of requested system clock */ - if (fsys > MAX_FSYS) - fsys = MAX_FSYS; - if (fsys < MIN_FSYS) - fsys = MIN_FSYS; - - /* Multiplying by 100 when calculating the temp value, - and then dividing by 100 to calculate the mfd allows - for exact values without needing to include floating - point libraries. */ - temp = 100 * fsys / fref; - mfd = 4 * BUSDIV * temp / 100; - - /* Determine the output frequency for selected values */ - fout = (fref * mfd / (BUSDIV * 4)); - - /* - * Check to see if the SDRAM has already been initialized. - * If it has then the SDRAM needs to be put into self refresh - * mode before reprogramming the PLL. - */ - if (MCF_SDRAMC_SDCR & MCF_SDRAMC_SDCR_REF) - /* Put SDRAM into self refresh mode */ - MCF_SDRAMC_SDCR &= ~MCF_SDRAMC_SDCR_CKE; - - /* - * Initialize the PLL to generate the new system clock frequency. - * The device must be put into LIMP mode to reprogram the PLL. - */ - - /* Enter LIMP mode */ - clock_limp(DEFAULT_LPD); - - /* Reprogram PLL for desired fsys */ - MCF_PLL_PODR = (0 - | MCF_PLL_PODR_CPUDIV(BUSDIV/3) - | MCF_PLL_PODR_BUSDIV(BUSDIV)); - - MCF_PLL_PFDR = mfd; - - /* Exit LIMP mode */ - clock_exit_limp(); - - /* - * Return the SDRAM to normal operation if it is in use. - */ - if (MCF_SDRAMC_SDCR & MCF_SDRAMC_SDCR_REF) - /* Exit self refresh mode */ - MCF_SDRAMC_SDCR |= MCF_SDRAMC_SDCR_CKE; - - /* Errata - workaround for SDRAM opeartion after exiting LIMP mode */ - MCF_SDRAMC_LIMP_FIX = MCF_SDRAMC_REFRESH; - - /* wait for DQS logic to relock */ - for (i = 0; i < 0x200; i++) - ; - - return fout; -} - -int clock_limp(int div) -{ - u32 temp; - - /* Check bounds of divider */ - if (div < MIN_LPD) - div = MIN_LPD; - if (div > MAX_LPD) - div = MAX_LPD; - - /* Save of the current value of the SSIDIV so we don't - overwrite the value*/ - temp = (MCF_CCM_CDR & MCF_CCM_CDR_SSIDIV(0xF)); - - /* Apply the divider to the system clock */ - MCF_CCM_CDR = ( 0 - | MCF_CCM_CDR_LPDIV(div) - | MCF_CCM_CDR_SSIDIV(temp)); - - MCF_CCM_MISCCR |= MCF_CCM_MISCCR_LIMP; - - return (FREF/(3*(1 << div))); -} - -int clock_exit_limp(void) -{ - int fout; - - /* Exit LIMP mode */ - MCF_CCM_MISCCR = (MCF_CCM_MISCCR & ~ MCF_CCM_MISCCR_LIMP); - - /* Wait for PLL to lock */ - while (!(MCF_CCM_MISCCR & MCF_CCM_MISCCR_PLL_LOCK)) - ; - - fout = get_sys_clock(); - - return fout; -} - -int get_sys_clock(void) -{ - int divider; - - /* Test to see if device is in LIMP mode */ - if (MCF_CCM_MISCCR & MCF_CCM_MISCCR_LIMP) { - divider = MCF_CCM_CDR & MCF_CCM_CDR_LPDIV(0xF); - return (FREF/(2 << divider)); - } - else - return ((FREF * MCF_PLL_PFDR) / (BUSDIV * 4)); -} diff --git a/arch/m68k/platform/coldfire/m53xx.c b/arch/m68k/platform/coldfire/m53xx.c new file mode 100644 index 00000000000..80879a7fe3d --- /dev/null +++ b/arch/m68k/platform/coldfire/m53xx.c @@ -0,0 +1,588 @@ +/***************************************************************************/ + +/* + * m53xx.c -- platform support for ColdFire 53xx based boards + * + * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 2000, Lineo (www.lineo.com) + * Yaroslav Vinogradov yaroslav.vinogradov@freescale.com + * Copyright Freescale Semiconductor, Inc 2006 + * Copyright (c) 2006, emlix, Sebastian Hess <shess@hessware.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/io.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfuart.h> +#include <asm/mcfdma.h> +#include <asm/mcfwdebug.h> +#include <asm/mcfclk.h> + +/***************************************************************************/ + +DEFINE_CLK(0, "flexbus", 2, MCF_CLK); +DEFINE_CLK(0, "mcfcan.0", 8, MCF_CLK); +DEFINE_CLK(0, "fec.0", 12, MCF_CLK); +DEFINE_CLK(0, "edma", 17, MCF_CLK); +DEFINE_CLK(0, "intc.0", 18, MCF_CLK); +DEFINE_CLK(0, "intc.1", 19, MCF_CLK); +DEFINE_CLK(0, "iack.0", 21, MCF_CLK); +DEFINE_CLK(0, "mcfi2c.0", 22, MCF_CLK); +DEFINE_CLK(0, "mcfqspi.0", 23, MCF_CLK); +DEFINE_CLK(0, "mcfuart.0", 24, MCF_BUSCLK); +DEFINE_CLK(0, "mcfuart.1", 25, MCF_BUSCLK); +DEFINE_CLK(0, "mcfuart.2", 26, MCF_BUSCLK); +DEFINE_CLK(0, "mcftmr.0", 28, MCF_CLK); +DEFINE_CLK(0, "mcftmr.1", 29, MCF_CLK); +DEFINE_CLK(0, "mcftmr.2", 30, MCF_CLK); +DEFINE_CLK(0, "mcftmr.3", 31, MCF_CLK); + +DEFINE_CLK(0, "mcfpit.0", 32, MCF_CLK); +DEFINE_CLK(0, "mcfpit.1", 33, MCF_CLK); +DEFINE_CLK(0, "mcfpit.2", 34, MCF_CLK); +DEFINE_CLK(0, "mcfpit.3", 35, MCF_CLK); +DEFINE_CLK(0, "mcfpwm.0", 36, MCF_CLK); +DEFINE_CLK(0, "mcfeport.0", 37, MCF_CLK); +DEFINE_CLK(0, "mcfwdt.0", 38, MCF_CLK); +DEFINE_CLK(0, "sys.0", 40, MCF_BUSCLK); +DEFINE_CLK(0, "gpio.0", 41, MCF_BUSCLK); +DEFINE_CLK(0, "mcfrtc.0", 42, MCF_CLK); +DEFINE_CLK(0, "mcflcd.0", 43, MCF_CLK); +DEFINE_CLK(0, "mcfusb-otg.0", 44, MCF_CLK); +DEFINE_CLK(0, "mcfusb-host.0", 45, MCF_CLK); +DEFINE_CLK(0, "sdram.0", 46, MCF_CLK); +DEFINE_CLK(0, "ssi.0", 47, MCF_CLK); +DEFINE_CLK(0, "pll.0", 48, MCF_CLK); + +DEFINE_CLK(1, "mdha.0", 32, MCF_CLK); +DEFINE_CLK(1, "skha.0", 33, MCF_CLK); +DEFINE_CLK(1, "rng.0", 34, MCF_CLK); + +struct clk *mcf_clks[] = { + &__clk_0_2, /* flexbus */ + &__clk_0_8, /* mcfcan.0 */ + &__clk_0_12, /* fec.0 */ + &__clk_0_17, /* edma */ + &__clk_0_18, /* intc.0 */ + &__clk_0_19, /* intc.1 */ + &__clk_0_21, /* iack.0 */ + &__clk_0_22, /* mcfi2c.0 */ + &__clk_0_23, /* mcfqspi.0 */ + &__clk_0_24, /* mcfuart.0 */ + &__clk_0_25, /* mcfuart.1 */ + &__clk_0_26, /* mcfuart.2 */ + &__clk_0_28, /* mcftmr.0 */ + &__clk_0_29, /* mcftmr.1 */ + &__clk_0_30, /* mcftmr.2 */ + &__clk_0_31, /* mcftmr.3 */ + + &__clk_0_32, /* mcfpit.0 */ + &__clk_0_33, /* mcfpit.1 */ + &__clk_0_34, /* mcfpit.2 */ + &__clk_0_35, /* mcfpit.3 */ + &__clk_0_36, /* mcfpwm.0 */ + &__clk_0_37, /* mcfeport.0 */ + &__clk_0_38, /* mcfwdt.0 */ + &__clk_0_40, /* sys.0 */ + &__clk_0_41, /* gpio.0 */ + &__clk_0_42, /* mcfrtc.0 */ + &__clk_0_43, /* mcflcd.0 */ + &__clk_0_44, /* mcfusb-otg.0 */ + &__clk_0_45, /* mcfusb-host.0 */ + &__clk_0_46, /* sdram.0 */ + &__clk_0_47, /* ssi.0 */ + &__clk_0_48, /* pll.0 */ + + &__clk_1_32, /* mdha.0 */ + &__clk_1_33, /* skha.0 */ + &__clk_1_34, /* rng.0 */ + NULL, +}; + +static struct clk * const enable_clks[] __initconst = { + &__clk_0_2, /* flexbus */ + &__clk_0_18, /* intc.0 */ + &__clk_0_19, /* intc.1 */ + &__clk_0_21, /* iack.0 */ + &__clk_0_24, /* mcfuart.0 */ + &__clk_0_25, /* mcfuart.1 */ + &__clk_0_26, /* mcfuart.2 */ + &__clk_0_28, /* mcftmr.0 */ + &__clk_0_29, /* mcftmr.1 */ + &__clk_0_32, /* mcfpit.0 */ + &__clk_0_33, /* mcfpit.1 */ + &__clk_0_37, /* mcfeport.0 */ + &__clk_0_40, /* sys.0 */ + &__clk_0_41, /* gpio.0 */ + &__clk_0_46, /* sdram.0 */ + &__clk_0_48, /* pll.0 */ +}; + +static struct clk * const disable_clks[] __initconst = { + &__clk_0_8, /* mcfcan.0 */ + &__clk_0_12, /* fec.0 */ + &__clk_0_17, /* edma */ + &__clk_0_22, /* mcfi2c.0 */ + &__clk_0_23, /* mcfqspi.0 */ + &__clk_0_30, /* mcftmr.2 */ + &__clk_0_31, /* mcftmr.3 */ + &__clk_0_34, /* mcfpit.2 */ + &__clk_0_35, /* mcfpit.3 */ + &__clk_0_36, /* mcfpwm.0 */ + &__clk_0_38, /* mcfwdt.0 */ + &__clk_0_42, /* mcfrtc.0 */ + &__clk_0_43, /* mcflcd.0 */ + &__clk_0_44, /* mcfusb-otg.0 */ + &__clk_0_45, /* mcfusb-host.0 */ + &__clk_0_47, /* ssi.0 */ + &__clk_1_32, /* mdha.0 */ + &__clk_1_33, /* skha.0 */ + &__clk_1_34, /* rng.0 */ +}; + + +static void __init m53xx_clk_init(void) +{ + unsigned i; + + /* make sure these clocks are enabled */ + for (i = 0; i < ARRAY_SIZE(enable_clks); ++i) + __clk_init_enabled(enable_clks[i]); + /* make sure these clocks are disabled */ + for (i = 0; i < ARRAY_SIZE(disable_clks); ++i) + __clk_init_disabled(disable_clks[i]); +} + +/***************************************************************************/ + +static void __init m53xx_qspi_init(void) +{ +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) + /* setup QSPS pins for QSPI with gpio CS control */ + writew(0x01f0, MCFGPIO_PAR_QSPI); +#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */ +} + +/***************************************************************************/ + +static void __init m53xx_uarts_init(void) +{ + /* UART GPIO initialization */ + writew(readw(MCFGPIO_PAR_UART) | 0x0FFF, MCFGPIO_PAR_UART); +} + +/***************************************************************************/ + +static void __init m53xx_fec_init(void) +{ + u8 v; + + /* Set multi-function pins to ethernet mode for fec0 */ + v = readb(MCFGPIO_PAR_FECI2C); + v |= MCF_GPIO_PAR_FECI2C_PAR_MDC_EMDC | + MCF_GPIO_PAR_FECI2C_PAR_MDIO_EMDIO; + writeb(v, MCFGPIO_PAR_FECI2C); + + v = readb(MCFGPIO_PAR_FEC); + v = MCF_GPIO_PAR_FEC_PAR_FEC_7W_FEC | MCF_GPIO_PAR_FEC_PAR_FEC_MII_FEC; + writeb(v, MCFGPIO_PAR_FEC); +} + +/***************************************************************************/ + +void __init config_BSP(char *commandp, int size) +{ +#if !defined(CONFIG_BOOTPARAM) + /* Copy command line from FLASH to local buffer... */ + memcpy(commandp, (char *) 0x4000, 4); + if(strncmp(commandp, "kcl ", 4) == 0){ + memcpy(commandp, (char *) 0x4004, size); + commandp[size-1] = 0; + } else { + memset(commandp, 0, size); + } +#endif + mach_sched_init = hw_timer_init; + m53xx_clk_init(); + m53xx_uarts_init(); + m53xx_fec_init(); + m53xx_qspi_init(); + +#ifdef CONFIG_BDM_DISABLE + /* + * Disable the BDM clocking. This also turns off most of the rest of + * the BDM device. This is good for EMC reasons. This option is not + * incompatible with the memory protection option. + */ + wdebug(MCFDEBUG_CSR, MCFDEBUG_CSR_PSTCLK); +#endif +} + +/***************************************************************************/ +/* Board initialization */ +/***************************************************************************/ +/* + * PLL min/max specifications + */ +#define MAX_FVCO 500000 /* KHz */ +#define MAX_FSYS 80000 /* KHz */ +#define MIN_FSYS 58333 /* KHz */ +#define FREF 16000 /* KHz */ + + +#define MAX_MFD 135 /* Multiplier */ +#define MIN_MFD 88 /* Multiplier */ +#define BUSDIV 6 /* Divider */ + +/* + * Low Power Divider specifications + */ +#define MIN_LPD (1 << 0) /* Divider (not encoded) */ +#define MAX_LPD (1 << 15) /* Divider (not encoded) */ +#define DEFAULT_LPD (1 << 1) /* Divider (not encoded) */ + +#define SYS_CLK_KHZ 80000 +#define SYSTEM_PERIOD 12.5 +/* + * SDRAM Timing Parameters + */ +#define SDRAM_BL 8 /* # of beats in a burst */ +#define SDRAM_TWR 2 /* in clocks */ +#define SDRAM_CASL 2.5 /* CASL in clocks */ +#define SDRAM_TRCD 2 /* in clocks */ +#define SDRAM_TRP 2 /* in clocks */ +#define SDRAM_TRFC 7 /* in clocks */ +#define SDRAM_TREFI 7800 /* in ns */ + +#define EXT_SRAM_ADDRESS (0xC0000000) +#define FLASH_ADDRESS (0x00000000) +#define SDRAM_ADDRESS (0x40000000) + +#define NAND_FLASH_ADDRESS (0xD0000000) + +int sys_clk_khz = 0; +int sys_clk_mhz = 0; + +void wtm_init(void); +void scm_init(void); +void gpio_init(void); +void fbcs_init(void); +void sdramc_init(void); +int clock_pll (int fsys, int flags); +int clock_limp (int); +int clock_exit_limp (void); +int get_sys_clock (void); + +asmlinkage void __init sysinit(void) +{ + sys_clk_khz = clock_pll(0, 0); + sys_clk_mhz = sys_clk_khz/1000; + + wtm_init(); + scm_init(); + gpio_init(); + fbcs_init(); + sdramc_init(); +} + +void wtm_init(void) +{ + /* Disable watchdog timer */ + writew(0, MCF_WTM_WCR); +} + +#define MCF_SCM_BCR_GBW (0x00000100) +#define MCF_SCM_BCR_GBR (0x00000200) + +void scm_init(void) +{ + /* All masters are trusted */ + writel(0x77777777, MCF_SCM_MPR); + + /* Allow supervisor/user, read/write, and trusted/untrusted + access to all slaves */ + writel(0, MCF_SCM_PACRA); + writel(0, MCF_SCM_PACRB); + writel(0, MCF_SCM_PACRC); + writel(0, MCF_SCM_PACRD); + writel(0, MCF_SCM_PACRE); + writel(0, MCF_SCM_PACRF); + + /* Enable bursts */ + writel(MCF_SCM_BCR_GBR | MCF_SCM_BCR_GBW, MCF_SCM_BCR); +} + + +void fbcs_init(void) +{ + writeb(0x3E, MCFGPIO_PAR_CS); + + /* Latch chip select */ + writel(0x10080000, MCF_FBCS1_CSAR); + + writel(0x002A3780, MCF_FBCS1_CSCR); + writel(MCF_FBCS_CSMR_BAM_2M | MCF_FBCS_CSMR_V, MCF_FBCS1_CSMR); + + /* Initialize latch to drive signals to inactive states */ + writew(0xffff, 0x10080000); + + /* External SRAM */ + writel(EXT_SRAM_ADDRESS, MCF_FBCS1_CSAR); + writel(MCF_FBCS_CSCR_PS_16 | + MCF_FBCS_CSCR_AA | + MCF_FBCS_CSCR_SBM | + MCF_FBCS_CSCR_WS(1), + MCF_FBCS1_CSCR); + writel(MCF_FBCS_CSMR_BAM_512K | MCF_FBCS_CSMR_V, MCF_FBCS1_CSMR); + + /* Boot Flash connected to FBCS0 */ + writel(FLASH_ADDRESS, MCF_FBCS0_CSAR); + writel(MCF_FBCS_CSCR_PS_16 | + MCF_FBCS_CSCR_BEM | + MCF_FBCS_CSCR_AA | + MCF_FBCS_CSCR_SBM | + MCF_FBCS_CSCR_WS(7), + MCF_FBCS0_CSCR); + writel(MCF_FBCS_CSMR_BAM_32M | MCF_FBCS_CSMR_V, MCF_FBCS0_CSMR); +} + +void sdramc_init(void) +{ + /* + * Check to see if the SDRAM has already been initialized + * by a run control tool + */ + if (!(readl(MCF_SDRAMC_SDCR) & MCF_SDRAMC_SDCR_REF)) { + /* SDRAM chip select initialization */ + + /* Initialize SDRAM chip select */ + writel(MCF_SDRAMC_SDCS_BA(SDRAM_ADDRESS) | + MCF_SDRAMC_SDCS_CSSZ(MCF_SDRAMC_SDCS_CSSZ_32MBYTE), + MCF_SDRAMC_SDCS0); + + /* + * Basic configuration and initialization + */ + writel(MCF_SDRAMC_SDCFG1_SRD2RW((int)((SDRAM_CASL + 2) + 0.5)) | + MCF_SDRAMC_SDCFG1_SWT2RD(SDRAM_TWR + 1) | + MCF_SDRAMC_SDCFG1_RDLAT((int)((SDRAM_CASL * 2) + 2)) | + MCF_SDRAMC_SDCFG1_ACT2RW((int)(SDRAM_TRCD + 0.5)) | + MCF_SDRAMC_SDCFG1_PRE2ACT((int)(SDRAM_TRP + 0.5)) | + MCF_SDRAMC_SDCFG1_REF2ACT((int)(SDRAM_TRFC + 0.5)) | + MCF_SDRAMC_SDCFG1_WTLAT(3), + MCF_SDRAMC_SDCFG1); + writel(MCF_SDRAMC_SDCFG2_BRD2PRE(SDRAM_BL / 2 + 1) | + MCF_SDRAMC_SDCFG2_BWT2RW(SDRAM_BL / 2 + SDRAM_TWR) | + MCF_SDRAMC_SDCFG2_BRD2WT((int)((SDRAM_CASL + SDRAM_BL / 2 - 1.0) + 0.5)) | + MCF_SDRAMC_SDCFG2_BL(SDRAM_BL - 1), + MCF_SDRAMC_SDCFG2); + + + /* + * Precharge and enable write to SDMR + */ + writel(MCF_SDRAMC_SDCR_MODE_EN | + MCF_SDRAMC_SDCR_CKE | + MCF_SDRAMC_SDCR_DDR | + MCF_SDRAMC_SDCR_MUX(1) | + MCF_SDRAMC_SDCR_RCNT((int)(((SDRAM_TREFI / (SYSTEM_PERIOD * 64)) - 1) + 0.5)) | + MCF_SDRAMC_SDCR_PS_16 | + MCF_SDRAMC_SDCR_IPALL, + MCF_SDRAMC_SDCR); + + /* + * Write extended mode register + */ + writel(MCF_SDRAMC_SDMR_BNKAD_LEMR | + MCF_SDRAMC_SDMR_AD(0x0) | + MCF_SDRAMC_SDMR_CMD, + MCF_SDRAMC_SDMR); + + /* + * Write mode register and reset DLL + */ + writel(MCF_SDRAMC_SDMR_BNKAD_LMR | + MCF_SDRAMC_SDMR_AD(0x163) | + MCF_SDRAMC_SDMR_CMD, + MCF_SDRAMC_SDMR); + + /* + * Execute a PALL command + */ + writel(readl(MCF_SDRAMC_SDCR) | MCF_SDRAMC_SDCR_IPALL, MCF_SDRAMC_SDCR); + + /* + * Perform two REF cycles + */ + writel(readl(MCF_SDRAMC_SDCR) | MCF_SDRAMC_SDCR_IREF, MCF_SDRAMC_SDCR); + writel(readl(MCF_SDRAMC_SDCR) | MCF_SDRAMC_SDCR_IREF, MCF_SDRAMC_SDCR); + + /* + * Write mode register and clear reset DLL + */ + writel(MCF_SDRAMC_SDMR_BNKAD_LMR | + MCF_SDRAMC_SDMR_AD(0x063) | + MCF_SDRAMC_SDMR_CMD, + MCF_SDRAMC_SDMR); + + /* + * Enable auto refresh and lock SDMR + */ + writel(readl(MCF_SDRAMC_SDCR) & ~MCF_SDRAMC_SDCR_MODE_EN, + MCF_SDRAMC_SDCR); + writel(MCF_SDRAMC_SDCR_REF | MCF_SDRAMC_SDCR_DQS_OE(0xC), + MCF_SDRAMC_SDCR); + } +} + +void gpio_init(void) +{ + /* Enable UART0 pins */ + writew(MCF_GPIO_PAR_UART_PAR_URXD0 | MCF_GPIO_PAR_UART_PAR_UTXD0, + MCFGPIO_PAR_UART); + + /* + * Initialize TIN3 as a GPIO output to enable the write + * half of the latch. + */ + writeb(0x00, MCFGPIO_PAR_TIMER); + writeb(0x08, MCFGPIO_PDDR_TIMER); + writeb(0x00, MCFGPIO_PCLRR_TIMER); +} + +int clock_pll(int fsys, int flags) +{ + int fref, temp, fout, mfd; + u32 i; + + fref = FREF; + + if (fsys == 0) { + /* Return current PLL output */ + mfd = readb(MCF_PLL_PFDR); + + return (fref * mfd / (BUSDIV * 4)); + } + + /* Check bounds of requested system clock */ + if (fsys > MAX_FSYS) + fsys = MAX_FSYS; + if (fsys < MIN_FSYS) + fsys = MIN_FSYS; + + /* Multiplying by 100 when calculating the temp value, + and then dividing by 100 to calculate the mfd allows + for exact values without needing to include floating + point libraries. */ + temp = 100 * fsys / fref; + mfd = 4 * BUSDIV * temp / 100; + + /* Determine the output frequency for selected values */ + fout = (fref * mfd / (BUSDIV * 4)); + + /* + * Check to see if the SDRAM has already been initialized. + * If it has then the SDRAM needs to be put into self refresh + * mode before reprogramming the PLL. + */ + if (readl(MCF_SDRAMC_SDCR) & MCF_SDRAMC_SDCR_REF) + /* Put SDRAM into self refresh mode */ + writel(readl(MCF_SDRAMC_SDCR) & ~MCF_SDRAMC_SDCR_CKE, + MCF_SDRAMC_SDCR); + + /* + * Initialize the PLL to generate the new system clock frequency. + * The device must be put into LIMP mode to reprogram the PLL. + */ + + /* Enter LIMP mode */ + clock_limp(DEFAULT_LPD); + + /* Reprogram PLL for desired fsys */ + writeb(MCF_PLL_PODR_CPUDIV(BUSDIV/3) | MCF_PLL_PODR_BUSDIV(BUSDIV), + MCF_PLL_PODR); + + writeb(mfd, MCF_PLL_PFDR); + + /* Exit LIMP mode */ + clock_exit_limp(); + + /* + * Return the SDRAM to normal operation if it is in use. + */ + if (readl(MCF_SDRAMC_SDCR) & MCF_SDRAMC_SDCR_REF) + /* Exit self refresh mode */ + writel(readl(MCF_SDRAMC_SDCR) | MCF_SDRAMC_SDCR_CKE, + MCF_SDRAMC_SDCR); + + /* Errata - workaround for SDRAM opeartion after exiting LIMP mode */ + writel(MCF_SDRAMC_REFRESH, MCF_SDRAMC_LIMP_FIX); + + /* wait for DQS logic to relock */ + for (i = 0; i < 0x200; i++) + ; + + return fout; +} + +int clock_limp(int div) +{ + u32 temp; + + /* Check bounds of divider */ + if (div < MIN_LPD) + div = MIN_LPD; + if (div > MAX_LPD) + div = MAX_LPD; + + /* Save of the current value of the SSIDIV so we don't + overwrite the value*/ + temp = readw(MCF_CCM_CDR) & MCF_CCM_CDR_SSIDIV(0xF); + + /* Apply the divider to the system clock */ + writew(MCF_CCM_CDR_LPDIV(div) | MCF_CCM_CDR_SSIDIV(temp), MCF_CCM_CDR); + + writew(readw(MCF_CCM_MISCCR) | MCF_CCM_MISCCR_LIMP, MCF_CCM_MISCCR); + + return (FREF/(3*(1 << div))); +} + +int clock_exit_limp(void) +{ + int fout; + + /* Exit LIMP mode */ + writew(readw(MCF_CCM_MISCCR) & ~MCF_CCM_MISCCR_LIMP, MCF_CCM_MISCCR); + + /* Wait for PLL to lock */ + while (!(readw(MCF_CCM_MISCCR) & MCF_CCM_MISCCR_PLL_LOCK)) + ; + + fout = get_sys_clock(); + + return fout; +} + +int get_sys_clock(void) +{ + int divider; + + /* Test to see if device is in LIMP mode */ + if (readw(MCF_CCM_MISCCR) & MCF_CCM_MISCCR_LIMP) { + divider = readw(MCF_CCM_CDR) & MCF_CCM_CDR_LPDIV(0xF); + return (FREF/(2 << divider)); + } + else + return (FREF * readb(MCF_PLL_PFDR)) / (BUSDIV * 4); +} diff --git a/arch/m68k/platform/coldfire/m5407.c b/arch/m68k/platform/coldfire/m5407.c index faa6680b340..2fb3cdbfde3 100644 --- a/arch/m68k/platform/coldfire/m5407.c +++ b/arch/m68k/platform/coldfire/m5407.c @@ -16,16 +16,27 @@ #include <asm/machdep.h> #include <asm/coldfire.h> #include <asm/mcfsim.h> -#include <asm/mcfgpio.h> +#include <asm/mcfclk.h> /***************************************************************************/ -struct mcf_gpio_chip mcf_gpio_chips[] = { - MCFGPS(PP, 0, 16, MCFSIM_PADDR, MCFSIM_PADAT, MCFSIM_PADAT), +DEFINE_CLK(pll, "pll.0", MCF_CLK); +DEFINE_CLK(sys, "sys.0", MCF_BUSCLK); +DEFINE_CLK(mcftmr0, "mcftmr.0", MCF_BUSCLK); +DEFINE_CLK(mcftmr1, "mcftmr.1", MCF_BUSCLK); +DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK); +DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK); + +struct clk *mcf_clks[] = { + &clk_pll, + &clk_sys, + &clk_mcftmr0, + &clk_mcftmr1, + &clk_mcfuart0, + &clk_mcfuart1, + NULL }; -unsigned int mcf_gpio_chips_size = ARRAY_SIZE(mcf_gpio_chips); - /***************************************************************************/ void __init config_BSP(char *commandp, int size) diff --git a/arch/m68k/platform/coldfire/m5441x.c b/arch/m68k/platform/coldfire/m5441x.c new file mode 100644 index 00000000000..98a13cce93d --- /dev/null +++ b/arch/m68k/platform/coldfire/m5441x.c @@ -0,0 +1,261 @@ +/* + * m5441x.c -- support for Coldfire m5441x processors + * + * (C) Copyright Steven King <sfking@fdwdc.com> + */ + +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/clk.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfuart.h> +#include <asm/mcfdma.h> +#include <asm/mcfclk.h> + +DEFINE_CLK(0, "flexbus", 2, MCF_CLK); +DEFINE_CLK(0, "mcfcan.0", 8, MCF_CLK); +DEFINE_CLK(0, "mcfcan.1", 9, MCF_CLK); +DEFINE_CLK(0, "mcfi2c.1", 14, MCF_CLK); +DEFINE_CLK(0, "mcfdspi.1", 15, MCF_CLK); +DEFINE_CLK(0, "edma", 17, MCF_CLK); +DEFINE_CLK(0, "intc.0", 18, MCF_CLK); +DEFINE_CLK(0, "intc.1", 19, MCF_CLK); +DEFINE_CLK(0, "intc.2", 20, MCF_CLK); +DEFINE_CLK(0, "mcfi2c.0", 22, MCF_CLK); +DEFINE_CLK(0, "mcfdspi.0", 23, MCF_CLK); +DEFINE_CLK(0, "mcfuart.0", 24, MCF_BUSCLK); +DEFINE_CLK(0, "mcfuart.1", 25, MCF_BUSCLK); +DEFINE_CLK(0, "mcfuart.2", 26, MCF_BUSCLK); +DEFINE_CLK(0, "mcfuart.3", 27, MCF_BUSCLK); +DEFINE_CLK(0, "mcftmr.0", 28, MCF_CLK); +DEFINE_CLK(0, "mcftmr.1", 29, MCF_CLK); +DEFINE_CLK(0, "mcftmr.2", 30, MCF_CLK); +DEFINE_CLK(0, "mcftmr.3", 31, MCF_CLK); +DEFINE_CLK(0, "mcfpit.0", 32, MCF_CLK); +DEFINE_CLK(0, "mcfpit.1", 33, MCF_CLK); +DEFINE_CLK(0, "mcfpit.2", 34, MCF_CLK); +DEFINE_CLK(0, "mcfpit.3", 35, MCF_CLK); +DEFINE_CLK(0, "mcfeport.0", 37, MCF_CLK); +DEFINE_CLK(0, "mcfadc.0", 38, MCF_CLK); +DEFINE_CLK(0, "mcfdac.0", 39, MCF_CLK); +DEFINE_CLK(0, "mcfrtc.0", 42, MCF_CLK); +DEFINE_CLK(0, "mcfsim.0", 43, MCF_CLK); +DEFINE_CLK(0, "mcfusb-otg.0", 44, MCF_CLK); +DEFINE_CLK(0, "mcfusb-host.0", 45, MCF_CLK); +DEFINE_CLK(0, "mcfddr-sram.0", 46, MCF_CLK); +DEFINE_CLK(0, "mcfssi.0", 47, MCF_CLK); +DEFINE_CLK(0, "pll.0", 48, MCF_CLK); +DEFINE_CLK(0, "mcfrng.0", 49, MCF_CLK); +DEFINE_CLK(0, "mcfssi.1", 50, MCF_CLK); +DEFINE_CLK(0, "mcfsdhc.0", 51, MCF_CLK); +DEFINE_CLK(0, "enet-fec.0", 53, MCF_CLK); +DEFINE_CLK(0, "enet-fec.1", 54, MCF_CLK); +DEFINE_CLK(0, "switch.0", 55, MCF_CLK); +DEFINE_CLK(0, "switch.1", 56, MCF_CLK); +DEFINE_CLK(0, "nand.0", 63, MCF_CLK); + +DEFINE_CLK(1, "mcfow.0", 2, MCF_CLK); +DEFINE_CLK(1, "mcfi2c.2", 4, MCF_CLK); +DEFINE_CLK(1, "mcfi2c.3", 5, MCF_CLK); +DEFINE_CLK(1, "mcfi2c.4", 6, MCF_CLK); +DEFINE_CLK(1, "mcfi2c.5", 7, MCF_CLK); +DEFINE_CLK(1, "mcfuart.4", 24, MCF_BUSCLK); +DEFINE_CLK(1, "mcfuart.5", 25, MCF_BUSCLK); +DEFINE_CLK(1, "mcfuart.6", 26, MCF_BUSCLK); +DEFINE_CLK(1, "mcfuart.7", 27, MCF_BUSCLK); +DEFINE_CLK(1, "mcfuart.8", 28, MCF_BUSCLK); +DEFINE_CLK(1, "mcfuart.9", 29, MCF_BUSCLK); +DEFINE_CLK(1, "mcfpwm.0", 34, MCF_BUSCLK); +DEFINE_CLK(1, "sys.0", 36, MCF_BUSCLK); +DEFINE_CLK(1, "gpio.0", 37, MCF_BUSCLK); + +struct clk *mcf_clks[] = { + &__clk_0_2, + &__clk_0_8, + &__clk_0_9, + &__clk_0_14, + &__clk_0_15, + &__clk_0_17, + &__clk_0_18, + &__clk_0_19, + &__clk_0_20, + &__clk_0_22, + &__clk_0_23, + &__clk_0_24, + &__clk_0_25, + &__clk_0_26, + &__clk_0_27, + &__clk_0_28, + &__clk_0_29, + &__clk_0_30, + &__clk_0_31, + &__clk_0_32, + &__clk_0_33, + &__clk_0_34, + &__clk_0_35, + &__clk_0_37, + &__clk_0_38, + &__clk_0_39, + &__clk_0_42, + &__clk_0_43, + &__clk_0_44, + &__clk_0_45, + &__clk_0_46, + &__clk_0_47, + &__clk_0_48, + &__clk_0_49, + &__clk_0_50, + &__clk_0_51, + &__clk_0_53, + &__clk_0_54, + &__clk_0_55, + &__clk_0_56, + &__clk_0_63, + + &__clk_1_2, + &__clk_1_4, + &__clk_1_5, + &__clk_1_6, + &__clk_1_7, + &__clk_1_24, + &__clk_1_25, + &__clk_1_26, + &__clk_1_27, + &__clk_1_28, + &__clk_1_29, + &__clk_1_34, + &__clk_1_36, + &__clk_1_37, + NULL, +}; + + +static struct clk * const enable_clks[] __initconst = { + /* make sure these clocks are enabled */ + &__clk_0_18, /* intc0 */ + &__clk_0_19, /* intc0 */ + &__clk_0_20, /* intc0 */ + &__clk_0_24, /* uart0 */ + &__clk_0_25, /* uart1 */ + &__clk_0_26, /* uart2 */ + &__clk_0_27, /* uart3 */ + + &__clk_0_33, /* pit.1 */ + &__clk_0_37, /* eport */ + &__clk_0_48, /* pll */ + + &__clk_1_36, /* CCM/reset module/Power management */ + &__clk_1_37, /* gpio */ +}; +static struct clk * const disable_clks[] __initconst = { + &__clk_0_8, /* can.0 */ + &__clk_0_9, /* can.1 */ + &__clk_0_14, /* i2c.1 */ + &__clk_0_15, /* dspi.1 */ + &__clk_0_17, /* eDMA */ + &__clk_0_22, /* i2c.0 */ + &__clk_0_23, /* dspi.0 */ + &__clk_0_28, /* tmr.1 */ + &__clk_0_29, /* tmr.2 */ + &__clk_0_30, /* tmr.2 */ + &__clk_0_31, /* tmr.3 */ + &__clk_0_32, /* pit.0 */ + &__clk_0_34, /* pit.2 */ + &__clk_0_35, /* pit.3 */ + &__clk_0_38, /* adc */ + &__clk_0_39, /* dac */ + &__clk_0_44, /* usb otg */ + &__clk_0_45, /* usb host */ + &__clk_0_47, /* ssi.0 */ + &__clk_0_49, /* rng */ + &__clk_0_50, /* ssi.1 */ + &__clk_0_51, /* eSDHC */ + &__clk_0_53, /* enet-fec */ + &__clk_0_54, /* enet-fec */ + &__clk_0_55, /* switch.0 */ + &__clk_0_56, /* switch.1 */ + + &__clk_1_2, /* 1-wire */ + &__clk_1_4, /* i2c.2 */ + &__clk_1_5, /* i2c.3 */ + &__clk_1_6, /* i2c.4 */ + &__clk_1_7, /* i2c.5 */ + &__clk_1_24, /* uart 4 */ + &__clk_1_25, /* uart 5 */ + &__clk_1_26, /* uart 6 */ + &__clk_1_27, /* uart 7 */ + &__clk_1_28, /* uart 8 */ + &__clk_1_29, /* uart 9 */ +}; + +static void __init m5441x_clk_init(void) +{ + unsigned i; + + for (i = 0; i < ARRAY_SIZE(enable_clks); ++i) + __clk_init_enabled(enable_clks[i]); + /* make sure these clocks are disabled */ + for (i = 0; i < ARRAY_SIZE(disable_clks); ++i) + __clk_init_disabled(disable_clks[i]); +} + +static void __init m5441x_uarts_init(void) +{ + __raw_writeb(0x0f, MCFGPIO_PAR_UART0); + __raw_writeb(0x00, MCFGPIO_PAR_UART1); + __raw_writeb(0x00, MCFGPIO_PAR_UART2); +} + +static void __init m5441x_fec_init(void) +{ + __raw_writeb(0x03, MCFGPIO_PAR_FEC); +} + +void __init config_BSP(char *commandp, int size) +{ + m5441x_clk_init(); + mach_sched_init = hw_timer_init; + m5441x_uarts_init(); + m5441x_fec_init(); +} + + +#if IS_ENABLED(CONFIG_RTC_DRV_M5441x) +static struct resource m5441x_rtc_resources[] = { + { + .start = MCFRTC_BASE, + .end = MCFRTC_BASE + MCFRTC_SIZE - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = MCF_IRQ_RTC, + .end = MCF_IRQ_RTC, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device m5441x_rtc = { + .name = "mcfrtc", + .id = 0, + .resource = m5441x_rtc_resources, + .num_resources = ARRAY_SIZE(m5441x_rtc_resources), +}; +#endif + +static struct platform_device *m5441x_devices[] __initdata = { +#if IS_ENABLED(CONFIG_RTC_DRV_M5441x) + &m5441x_rtc, +#endif +}; + +static int __init init_BSP(void) +{ + platform_add_devices(m5441x_devices, ARRAY_SIZE(m5441x_devices)); + return 0; +} + +arch_initcall(init_BSP); diff --git a/arch/m68k/platform/coldfire/m54xx.c b/arch/m68k/platform/coldfire/m54xx.c index 20672dadb25..952da53aa0b 100644 --- a/arch/m68k/platform/coldfire/m54xx.c +++ b/arch/m68k/platform/coldfire/m54xx.c @@ -14,37 +14,54 @@ #include <linux/interrupt.h> #include <linux/io.h> #include <linux/mm.h> +#include <linux/clk.h> #include <linux/bootmem.h> #include <asm/pgalloc.h> #include <asm/machdep.h> #include <asm/coldfire.h> #include <asm/m54xxsim.h> #include <asm/mcfuart.h> +#include <asm/mcfclk.h> #include <asm/m54xxgpt.h> -#include <asm/mcfgpio.h> +#include <asm/mcfclk.h> #ifdef CONFIG_MMU #include <asm/mmu_context.h> #endif /***************************************************************************/ -struct mcf_gpio_chip mcf_gpio_chips[] = { }; - -unsigned int mcf_gpio_chips_size = ARRAY_SIZE(mcf_gpio_chips); +DEFINE_CLK(pll, "pll.0", MCF_CLK); +DEFINE_CLK(sys, "sys.0", MCF_BUSCLK); +DEFINE_CLK(mcfslt0, "mcfslt.0", MCF_BUSCLK); +DEFINE_CLK(mcfslt1, "mcfslt.1", MCF_BUSCLK); +DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK); +DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK); +DEFINE_CLK(mcfuart2, "mcfuart.2", MCF_BUSCLK); +DEFINE_CLK(mcfuart3, "mcfuart.3", MCF_BUSCLK); + +struct clk *mcf_clks[] = { + &clk_pll, + &clk_sys, + &clk_mcfslt0, + &clk_mcfslt1, + &clk_mcfuart0, + &clk_mcfuart1, + &clk_mcfuart2, + &clk_mcfuart3, + NULL +}; /***************************************************************************/ static void __init m54xx_uarts_init(void) { /* enable io pins */ - __raw_writeb(MCF_PAR_PSC_TXD | MCF_PAR_PSC_RXD, - MCF_MBAR + MCF_PAR_PSC(0)); + __raw_writeb(MCF_PAR_PSC_TXD | MCF_PAR_PSC_RXD, MCFGPIO_PAR_PSC0); __raw_writeb(MCF_PAR_PSC_TXD | MCF_PAR_PSC_RXD | MCF_PAR_PSC_RTS_RTS, - MCF_MBAR + MCF_PAR_PSC(1)); + MCFGPIO_PAR_PSC1); __raw_writeb(MCF_PAR_PSC_TXD | MCF_PAR_PSC_RXD | MCF_PAR_PSC_RTS_RTS | - MCF_PAR_PSC_CTS_CTS, MCF_MBAR + MCF_PAR_PSC(2)); - __raw_writeb(MCF_PAR_PSC_TXD | MCF_PAR_PSC_RXD, - MCF_MBAR + MCF_PAR_PSC(3)); + MCF_PAR_PSC_CTS_CTS, MCFGPIO_PAR_PSC2); + __raw_writeb(MCF_PAR_PSC_TXD | MCF_PAR_PSC_RXD, MCFGPIO_PAR_PSC3); } /***************************************************************************/ @@ -53,10 +70,10 @@ static void mcf54xx_reset(void) { /* disable interrupts and enable the watchdog */ asm("movew #0x2700, %sr\n"); - __raw_writel(0, MCF_MBAR + MCF_GPT_GMS0); - __raw_writel(MCF_GPT_GCIR_CNT(1), MCF_MBAR + MCF_GPT_GCIR0); + __raw_writel(0, MCF_GPT_GMS0); + __raw_writel(MCF_GPT_GCIR_CNT(1), MCF_GPT_GCIR0); __raw_writel(MCF_GPT_GMS_WDEN | MCF_GPT_GMS_CE | MCF_GPT_GMS_TMS(4), - MCF_MBAR + MCF_GPT_GMS0); + MCF_GPT_GMS0); } /***************************************************************************/ diff --git a/arch/m68k/platform/coldfire/mcf8390.c b/arch/m68k/platform/coldfire/mcf8390.c new file mode 100644 index 00000000000..23a6874a324 --- /dev/null +++ b/arch/m68k/platform/coldfire/mcf8390.c @@ -0,0 +1,38 @@ +/* + * mcf8390.c -- platform support for 8390 ethernet on many boards + * + * (C) Copyright 2012, Greg Ungerer <gerg@uclinux.org> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/resource.h> +#include <linux/platform_device.h> +#include <asm/mcf8390.h> + +static struct resource mcf8390_resources[] = { + { + .start = NE2000_ADDR, + .end = NE2000_ADDR + NE2000_ADDRSIZE - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = NE2000_IRQ_VECTOR, + .end = NE2000_IRQ_VECTOR, + .flags = IORESOURCE_IRQ, + }, +}; + +static int __init mcf8390_platform_init(void) +{ + platform_device_register_simple("mcf8390", -1, mcf8390_resources, + ARRAY_SIZE(mcf8390_resources)); + return 0; +} + +arch_initcall(mcf8390_platform_init); diff --git a/arch/m68k/platform/coldfire/nettel.c b/arch/m68k/platform/coldfire/nettel.c index e925ea4602f..ddc48ec1b80 100644 --- a/arch/m68k/platform/coldfire/nettel.c +++ b/arch/m68k/platform/coldfire/nettel.c @@ -121,14 +121,14 @@ static void __init nettel_smc91x_setmac(unsigned int ioaddr, unsigned int flasha static void __init nettel_smc91x_init(void) { - writew(0x00ec, MCF_MBAR + MCFSIM_PADDR); + writew(0x00ec, MCFSIM_PADDR); mcf_setppdata(0, 0x0080); writew(1, NETTEL_SMC0_ADDR + SMC91xx_BANKSELECT); writew(0x0067, NETTEL_SMC0_ADDR + SMC91xx_BASEADDR); mcf_setppdata(0x0080, 0); /* Set correct chip select timing for SMC9196 accesses */ - writew(0x1180, MCF_MBAR + MCFSIM_CSCR3); + writew(0x1180, MCFSIM_CSCR3); /* Set the SMC interrupts to be auto-vectored */ mcf_autovector(NETTEL_SMC0_IRQ); diff --git a/arch/m68k/platform/coldfire/pci.c b/arch/m68k/platform/coldfire/pci.c new file mode 100644 index 00000000000..df9679238b6 --- /dev/null +++ b/arch/m68k/platform/coldfire/pci.c @@ -0,0 +1,325 @@ +/* + * pci.c -- PCI bus support for ColdFire processors + * + * (C) Copyright 2012, Greg Ungerer <gerg@uclinux.com> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#include <linux/types.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/io.h> +#include <linux/pci.h> +#include <linux/delay.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/m54xxpci.h> + +/* + * Memory and IO mappings. We use a 1:1 mapping for local host memory to + * PCI bus memory (no reason not to really). IO space doesn't matter, we + * always use access functions for that. The device configuration space is + * mapped over the IO map space when we enable it in the PCICAR register. + */ +#define PCI_MEM_PA 0xf0000000 /* Host physical address */ +#define PCI_MEM_BA 0xf0000000 /* Bus physical address */ +#define PCI_MEM_SIZE 0x08000000 /* 128 MB */ +#define PCI_MEM_MASK (PCI_MEM_SIZE - 1) + +#define PCI_IO_PA 0xf8000000 /* Host physical address */ +#define PCI_IO_BA 0x00000000 /* Bus physical address */ +#define PCI_IO_SIZE 0x00010000 /* 64k */ +#define PCI_IO_MASK (PCI_IO_SIZE - 1) + +static struct pci_bus *rootbus; +static unsigned long iospace; + +/* + * We need to be carefull probing on bus 0 (directly connected to host + * bridge). We should only acccess the well defined possible devices in + * use, ignore aliases and the like. + */ +static unsigned char mcf_host_slot2sid[32] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 1, 2, 0, 3, 4, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, +}; + +static unsigned char mcf_host_irq[] = { + 0, 69, 69, 71, 71, +}; + + +static inline void syncio(void) +{ + /* The ColdFire "nop" instruction waits for all bus IO to complete */ + __asm__ __volatile__ ("nop"); +} + +/* + * Configuration space access functions. Configuration space access is + * through the IO mapping window, enabling it via the PCICAR register. + */ +static unsigned long mcf_mk_pcicar(int bus, unsigned int devfn, int where) +{ + return (bus << PCICAR_BUSN) | (devfn << PCICAR_DEVFNN) | (where & 0xfc); +} + +static int mcf_pci_readconfig(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 *value) +{ + unsigned long addr; + + *value = 0xffffffff; + + if (bus->number == 0) { + if (mcf_host_slot2sid[PCI_SLOT(devfn)] == 0) + return PCIBIOS_SUCCESSFUL; + } + + syncio(); + addr = mcf_mk_pcicar(bus->number, devfn, where); + __raw_writel(PCICAR_E | addr, PCICAR); + addr = iospace + (where & 0x3); + + switch (size) { + case 1: + *value = __raw_readb(addr); + break; + case 2: + *value = le16_to_cpu(__raw_readw(addr)); + break; + default: + *value = le32_to_cpu(__raw_readl(addr)); + break; + } + + syncio(); + __raw_writel(0, PCICAR); + return PCIBIOS_SUCCESSFUL; +} + +static int mcf_pci_writeconfig(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 value) +{ + unsigned long addr; + + if (bus->number == 0) { + if (mcf_host_slot2sid[PCI_SLOT(devfn)] == 0) + return PCIBIOS_SUCCESSFUL; + } + + syncio(); + addr = mcf_mk_pcicar(bus->number, devfn, where); + __raw_writel(PCICAR_E | addr, PCICAR); + addr = iospace + (where & 0x3); + + switch (size) { + case 1: + __raw_writeb(value, addr); + break; + case 2: + __raw_writew(cpu_to_le16(value), addr); + break; + default: + __raw_writel(cpu_to_le32(value), addr); + break; + } + + syncio(); + __raw_writel(0, PCICAR); + return PCIBIOS_SUCCESSFUL; +} + +static struct pci_ops mcf_pci_ops = { + .read = mcf_pci_readconfig, + .write = mcf_pci_writeconfig, +}; + +/* + * IO address space access functions. Pretty strait forward, these are + * directly mapped in to the IO mapping window. And that is mapped into + * virtual address space. + */ +u8 mcf_pci_inb(u32 addr) +{ + return __raw_readb(iospace + (addr & PCI_IO_MASK)); +} +EXPORT_SYMBOL(mcf_pci_inb); + +u16 mcf_pci_inw(u32 addr) +{ + return le16_to_cpu(__raw_readw(iospace + (addr & PCI_IO_MASK))); +} +EXPORT_SYMBOL(mcf_pci_inw); + +u32 mcf_pci_inl(u32 addr) +{ + return le32_to_cpu(__raw_readl(iospace + (addr & PCI_IO_MASK))); +} +EXPORT_SYMBOL(mcf_pci_inl); + +void mcf_pci_insb(u32 addr, u8 *buf, u32 len) +{ + for (; len; len--) + *buf++ = mcf_pci_inb(addr); +} +EXPORT_SYMBOL(mcf_pci_insb); + +void mcf_pci_insw(u32 addr, u16 *buf, u32 len) +{ + for (; len; len--) + *buf++ = mcf_pci_inw(addr); +} +EXPORT_SYMBOL(mcf_pci_insw); + +void mcf_pci_insl(u32 addr, u32 *buf, u32 len) +{ + for (; len; len--) + *buf++ = mcf_pci_inl(addr); +} +EXPORT_SYMBOL(mcf_pci_insl); + +void mcf_pci_outb(u8 v, u32 addr) +{ + __raw_writeb(v, iospace + (addr & PCI_IO_MASK)); +} +EXPORT_SYMBOL(mcf_pci_outb); + +void mcf_pci_outw(u16 v, u32 addr) +{ + __raw_writew(cpu_to_le16(v), iospace + (addr & PCI_IO_MASK)); +} +EXPORT_SYMBOL(mcf_pci_outw); + +void mcf_pci_outl(u32 v, u32 addr) +{ + __raw_writel(cpu_to_le32(v), iospace + (addr & PCI_IO_MASK)); +} +EXPORT_SYMBOL(mcf_pci_outl); + +void mcf_pci_outsb(u32 addr, const u8 *buf, u32 len) +{ + for (; len; len--) + mcf_pci_outb(*buf++, addr); +} +EXPORT_SYMBOL(mcf_pci_outsb); + +void mcf_pci_outsw(u32 addr, const u16 *buf, u32 len) +{ + for (; len; len--) + mcf_pci_outw(*buf++, addr); +} +EXPORT_SYMBOL(mcf_pci_outsw); + +void mcf_pci_outsl(u32 addr, const u32 *buf, u32 len) +{ + for (; len; len--) + mcf_pci_outl(*buf++, addr); +} +EXPORT_SYMBOL(mcf_pci_outsl); + +/* + * Initialize the PCI bus registers, and scan the bus. + */ +static struct resource mcf_pci_mem = { + .name = "PCI Memory space", + .start = PCI_MEM_PA, + .end = PCI_MEM_PA + PCI_MEM_SIZE - 1, + .flags = IORESOURCE_MEM, +}; + +static struct resource mcf_pci_io = { + .name = "PCI IO space", + .start = 0x400, + .end = 0x10000 - 1, + .flags = IORESOURCE_IO, +}; + +/* + * Interrupt mapping and setting. + */ +static int mcf_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) +{ + int sid; + + sid = mcf_host_slot2sid[slot]; + if (sid) + return mcf_host_irq[sid]; + return 0; +} + +static int __init mcf_pci_init(void) +{ + pr_info("ColdFire: PCI bus initialization...\n"); + + /* Reset the external PCI bus */ + __raw_writel(PCIGSCR_RESET, PCIGSCR); + __raw_writel(0, PCITCR); + + request_resource(&iomem_resource, &mcf_pci_mem); + request_resource(&iomem_resource, &mcf_pci_io); + + /* Configure PCI arbiter */ + __raw_writel(PACR_INTMPRI | PACR_INTMINTE | PACR_EXTMPRI(0x1f) | + PACR_EXTMINTE(0x1f), PACR); + + /* Set required multi-function pins for PCI bus use */ + __raw_writew(0x3ff, MCFGPIO_PAR_PCIBG); + __raw_writew(0x3ff, MCFGPIO_PAR_PCIBR); + + /* Set up config space for local host bus controller */ + __raw_writel(PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | + PCI_COMMAND_INVALIDATE, PCISCR); + __raw_writel(PCICR1_LT(32) | PCICR1_CL(8), PCICR1); + __raw_writel(0, PCICR2); + + /* + * Set up the initiator windows for memory and IO mapping. + * These give the CPU bus access onto the PCI bus. One for each of + * PCI memory and IO address spaces. + */ + __raw_writel(WXBTAR(PCI_MEM_PA, PCI_MEM_BA, PCI_MEM_SIZE), + PCIIW0BTAR); + __raw_writel(WXBTAR(PCI_IO_PA, PCI_IO_BA, PCI_IO_SIZE), + PCIIW1BTAR); + __raw_writel(PCIIWCR_W0_MEM /*| PCIIWCR_W0_MRDL*/ | PCIIWCR_W0_E | + PCIIWCR_W1_IO | PCIIWCR_W1_E, PCIIWCR); + + /* + * Set up the target windows for access from the PCI bus back to the + * CPU bus. All we need is access to system RAM (for mastering). + */ + __raw_writel(CONFIG_RAMBASE, PCIBAR1); + __raw_writel(CONFIG_RAMBASE | PCITBATR1_E, PCITBATR1); + + /* Keep a virtual mapping to IO/config space active */ + iospace = (unsigned long) ioremap(PCI_IO_PA, PCI_IO_SIZE); + if (iospace == 0) + return -ENODEV; + pr_info("Coldfire: PCI IO/config window mapped to 0x%x\n", + (u32) iospace); + + /* Turn of PCI reset, and wait for devices to settle */ + __raw_writel(0, PCIGSCR); + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout(msecs_to_jiffies(200)); + + rootbus = pci_scan_bus(0, &mcf_pci_ops, NULL); + rootbus->resource[0] = &mcf_pci_io; + rootbus->resource[1] = &mcf_pci_mem; + + pci_fixup_irqs(pci_common_swizzle, mcf_pci_map_irq); + pci_bus_size_bridges(rootbus); + pci_bus_assign_resources(rootbus); + return 0; +} + +subsys_initcall(mcf_pci_init); diff --git a/arch/m68k/platform/coldfire/pinmux.c b/arch/m68k/platform/coldfire/pinmux.c deleted file mode 100644 index 8c62b825939..00000000000 --- a/arch/m68k/platform/coldfire/pinmux.c +++ /dev/null @@ -1,28 +0,0 @@ -/* - * Coldfire generic GPIO pinmux support. - * - * (C) Copyright 2009, Steven King <sfking@fdwdc.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <linux/kernel.h> - -#include <asm/pinmux.h> - -int mcf_pinmux_request(unsigned pinmux, unsigned func) -{ - return 0; -} - -void mcf_pinmux_release(unsigned pinmux, unsigned func) -{ -} diff --git a/arch/m68k/platform/coldfire/pit.c b/arch/m68k/platform/coldfire/pit.c index e62dbbcb10f..493b3111d4c 100644 --- a/arch/m68k/platform/coldfire/pit.c +++ b/arch/m68k/platform/coldfire/pit.c @@ -93,7 +93,7 @@ struct clock_event_device cf_pit_clockevent = { .set_mode = init_cf_pit_timer, .set_next_event = cf_pit_next_event, .shift = 32, - .irq = MCFINT_VECBASE + MCFINT_PIT1, + .irq = MCF_IRQ_PIT1, }; @@ -118,7 +118,7 @@ static irqreturn_t pit_tick(int irq, void *dummy) static struct irqaction pit_irq = { .name = "timer", - .flags = IRQF_DISABLED | IRQF_TIMER, + .flags = IRQF_TIMER, .handler = pit_tick, }; @@ -159,7 +159,7 @@ void hw_timer_init(irq_handler_t handler) clockevent_delta2ns(0x3f, &cf_pit_clockevent); clockevents_register_device(&cf_pit_clockevent); - setup_irq(MCFINT_VECBASE + MCFINT_PIT1, &pit_irq); + setup_irq(MCF_IRQ_PIT1, &pit_irq); clocksource_register_hz(&pit_clk, FREQ); } diff --git a/arch/m68k/platform/coldfire/reset.c b/arch/m68k/platform/coldfire/reset.c index 933e54eacc6..f30952f0cbe 100644 --- a/arch/m68k/platform/coldfire/reset.c +++ b/arch/m68k/platform/coldfire/reset.c @@ -27,7 +27,7 @@ static void mcf_cpu_reset(void) { local_irq_disable(); /* Set watchdog to soft reset, and enabled */ - __raw_writeb(0xc0, MCF_MBAR + MCFSIM_SYPCR); + __raw_writeb(0xc0, MCFSIM_SYPCR); for (;;) /* wait for watchdog to timeout */; } diff --git a/arch/m68k/platform/coldfire/sltimers.c b/arch/m68k/platform/coldfire/sltimers.c index 2027fc20b87..831a08cf6f4 100644 --- a/arch/m68k/platform/coldfire/sltimers.c +++ b/arch/m68k/platform/coldfire/sltimers.c @@ -32,7 +32,7 @@ /* * By default use Slice Timer 1 as the profiler clock timer. */ -#define PA(a) (MCF_MBAR + MCFSLT_TIMER1 + (a)) +#define PA(a) (MCFSLT_TIMER1 + (a)) /* * Choose a reasonably fast profile timer. Make it an odd value to @@ -51,7 +51,7 @@ irqreturn_t mcfslt_profile_tick(int irq, void *dummy) static struct irqaction mcfslt_profile_irq = { .name = "profile timer", - .flags = IRQF_DISABLED | IRQF_TIMER, + .flags = IRQF_TIMER, .handler = mcfslt_profile_tick, }; @@ -76,7 +76,7 @@ void mcfslt_profile_init(void) /* * By default use Slice Timer 0 as the system clock timer. */ -#define TA(a) (MCF_MBAR + MCFSLT_TIMER0 + (a)) +#define TA(a) (MCFSLT_TIMER0 + (a)) static u32 mcfslt_cycles_per_jiffy; static u32 mcfslt_cnt; @@ -93,7 +93,7 @@ static irqreturn_t mcfslt_tick(int irq, void *dummy) static struct irqaction mcfslt_timer_irq = { .name = "timer", - .flags = IRQF_DISABLED | IRQF_TIMER, + .flags = IRQF_TIMER, .handler = mcfslt_tick, }; diff --git a/arch/m68k/platform/coldfire/timers.c b/arch/m68k/platform/coldfire/timers.c index ed96ce50d79..cd496a20fcc 100644 --- a/arch/m68k/platform/coldfire/timers.c +++ b/arch/m68k/platform/coldfire/timers.c @@ -36,7 +36,7 @@ */ void coldfire_profile_init(void); -#if defined(CONFIG_M532x) +#if defined(CONFIG_M53xx) || defined(CONFIG_M5441x) #define __raw_readtrr __raw_readl #define __raw_writetrr __raw_writel #else @@ -56,13 +56,13 @@ static void init_timer_irq(void) #ifdef MCFSIM_ICR_AUTOVEC /* Timer1 is always used as system timer */ writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI3, - MCF_MBAR + MCFSIM_TIMER1ICR); + MCFSIM_TIMER1ICR); mcf_mapirq2imr(MCF_IRQ_TIMER, MCFINTC_TIMER1); #ifdef CONFIG_HIGHPROFILE /* Timer2 is to be used as a high speed profile timer */ writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3, - MCF_MBAR + MCFSIM_TIMER2ICR); + MCFSIM_TIMER2ICR); mcf_mapirq2imr(MCF_IRQ_PROFILER, MCFINTC_TIMER2); #endif #endif /* MCFSIM_ICR_AUTOVEC */ @@ -83,7 +83,7 @@ static irqreturn_t mcftmr_tick(int irq, void *dummy) static struct irqaction mcftmr_timer_irq = { .name = "timer", - .flags = IRQF_DISABLED | IRQF_TIMER, + .flags = IRQF_TIMER, .handler = mcftmr_tick, }; @@ -171,7 +171,7 @@ irqreturn_t coldfire_profile_tick(int irq, void *dummy) static struct irqaction coldfire_profile_irq = { .name = "profile timer", - .flags = IRQF_DISABLED | IRQF_TIMER, + .flags = IRQF_TIMER, .handler = coldfire_profile_tick, }; |