diff options
Diffstat (limited to 'arch/mips/dec/prom')
| -rw-r--r-- | arch/mips/dec/prom/Makefile | 5 | ||||
| -rw-r--r-- | arch/mips/dec/prom/call_o32.S | 91 | ||||
| -rw-r--r-- | arch/mips/dec/prom/console.c | 42 | ||||
| -rw-r--r-- | arch/mips/dec/prom/dectypes.h | 2 | ||||
| -rw-r--r-- | arch/mips/dec/prom/identify.c | 37 | ||||
| -rw-r--r-- | arch/mips/dec/prom/init.c | 24 | ||||
| -rw-r--r-- | arch/mips/dec/prom/locore.S | 1 | ||||
| -rw-r--r-- | arch/mips/dec/prom/memory.c | 38 |
8 files changed, 67 insertions, 173 deletions
diff --git a/arch/mips/dec/prom/Makefile b/arch/mips/dec/prom/Makefile index 373822ec2d8..ae73e42ac20 100644 --- a/arch/mips/dec/prom/Makefile +++ b/arch/mips/dec/prom/Makefile @@ -5,7 +5,4 @@ lib-y += init.o memory.o cmdline.o identify.o console.o -lib-$(CONFIG_MIPS32) += locore.o -lib-$(CONFIG_MIPS64) += call_o32.o - -EXTRA_AFLAGS := $(CFLAGS) +lib-$(CONFIG_32BIT) += locore.o diff --git a/arch/mips/dec/prom/call_o32.S b/arch/mips/dec/prom/call_o32.S deleted file mode 100644 index 0dd56db9b3d..00000000000 --- a/arch/mips/dec/prom/call_o32.S +++ /dev/null @@ -1,91 +0,0 @@ -/* - * arch/mips/dec/call_o32.S - * - * O32 interface for the 64 (or N32) ABI. - * - * Copyright (C) 2002 Maciej W. Rozycki - * - * 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 <asm/asm.h> -#include <asm/regdef.h> - -/* Maximum number of arguments supported. Must be even! */ -#define O32_ARGC 32 -/* Number of static registers we save. */ -#define O32_STATC 11 -/* Frame size for both of the above. */ -#define O32_FRAMESZ (4 * O32_ARGC + SZREG * O32_STATC) - - .text - -/* - * O32 function call dispatcher, for interfacing 32-bit ROM routines. - * - * The standard 64 (N32) calling sequence is supported, with a0 - * holding a function pointer, a1-a7 -- its first seven arguments - * and the stack -- remaining ones (up to O32_ARGC, including a1-a7). - * Static registers, gp and fp are preserved, v0 holds a result. - * This code relies on the called o32 function for sp and ra - * restoration and thus both this dispatcher and the current stack - * have to be placed in a KSEGx (or KUSEG) address space. Any - * pointers passed have to point to addresses within one of these - * spaces as well. - */ -NESTED(call_o32, O32_FRAMESZ, ra) - REG_SUBU sp,O32_FRAMESZ - - REG_S ra,O32_FRAMESZ-1*SZREG(sp) - REG_S fp,O32_FRAMESZ-2*SZREG(sp) - REG_S gp,O32_FRAMESZ-3*SZREG(sp) - REG_S s7,O32_FRAMESZ-4*SZREG(sp) - REG_S s6,O32_FRAMESZ-5*SZREG(sp) - REG_S s5,O32_FRAMESZ-6*SZREG(sp) - REG_S s4,O32_FRAMESZ-7*SZREG(sp) - REG_S s3,O32_FRAMESZ-8*SZREG(sp) - REG_S s2,O32_FRAMESZ-9*SZREG(sp) - REG_S s1,O32_FRAMESZ-10*SZREG(sp) - REG_S s0,O32_FRAMESZ-11*SZREG(sp) - - move jp,a0 - - sll a0,a1,zero - sll a1,a2,zero - sll a2,a3,zero - sll a3,a4,zero - sw a5,0x10(sp) - sw a6,0x14(sp) - sw a7,0x18(sp) - - PTR_LA t0,O32_FRAMESZ(sp) - PTR_LA t1,0x1c(sp) - li t2,O32_ARGC-7 -1: - lw t3,(t0) - REG_ADDU t0,SZREG - sw t3,(t1) - REG_SUBU t2,1 - REG_ADDU t1,4 - bnez t2,1b - - jalr jp - - REG_L s0,O32_FRAMESZ-11*SZREG(sp) - REG_L s1,O32_FRAMESZ-10*SZREG(sp) - REG_L s2,O32_FRAMESZ-9*SZREG(sp) - REG_L s3,O32_FRAMESZ-8*SZREG(sp) - REG_L s4,O32_FRAMESZ-7*SZREG(sp) - REG_L s5,O32_FRAMESZ-6*SZREG(sp) - REG_L s6,O32_FRAMESZ-5*SZREG(sp) - REG_L s7,O32_FRAMESZ-4*SZREG(sp) - REG_L gp,O32_FRAMESZ-3*SZREG(sp) - REG_L fp,O32_FRAMESZ-2*SZREG(sp) - REG_L ra,O32_FRAMESZ-1*SZREG(sp) - - REG_ADDU sp,O32_FRAMESZ - jr ra -END(call_o32) diff --git a/arch/mips/dec/prom/console.c b/arch/mips/dec/prom/console.c index cade16ec7e5..caa6e047caf 100644 --- a/arch/mips/dec/prom/console.c +++ b/arch/mips/dec/prom/console.c @@ -1,9 +1,7 @@ /* - * arch/mips/dec/prom/console.c - * * DECstation PROM-based early console support. * - * Copyright (C) 2004 Maciej W. Rozycki + * Copyright (C) 2004, 2007 Maciej W. Rozycki * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -13,43 +11,35 @@ #include <linux/console.h> #include <linux/init.h> #include <linux/kernel.h> +#include <linux/string.h> #include <asm/dec/prom.h> static void __init prom_console_write(struct console *con, const char *s, unsigned int c) { - static char sfmt[] __initdata = "%%%us"; - char fmt[13]; - - snprintf(fmt, sizeof(fmt), sfmt, c); - prom_printf(fmt, s); + char buf[81]; + unsigned int chunk = sizeof(buf) - 1; + + while (c > 0) { + if (chunk > c) + chunk = c; + memcpy(buf, s, chunk); + buf[chunk] = '\0'; + prom_printf("%s", buf); + s += chunk; + c -= chunk; + } } static struct console promcons __initdata = { .name = "prom", .write = prom_console_write, - .flags = CON_PRINTBUFFER, + .flags = CON_BOOT | CON_PRINTBUFFER, .index = -1, }; -static int promcons_output __initdata = 0; - void __init register_prom_console(void) { - if (!promcons_output) { - promcons_output = 1; - register_console(&promcons); - } -} - -void __init unregister_prom_console(void) -{ - if (promcons_output) { - unregister_console(&promcons); - promcons_output = 0; - } + register_console(&promcons); } - -void disable_early_printk(void) - __attribute__((alias("unregister_prom_console"))); diff --git a/arch/mips/dec/prom/dectypes.h b/arch/mips/dec/prom/dectypes.h index 707b6f1f5a9..69ea5b9c819 100644 --- a/arch/mips/dec/prom/dectypes.h +++ b/arch/mips/dec/prom/dectypes.h @@ -1,5 +1,5 @@ #ifndef DECTYPES -#define DECTYPES +#define DECTYPES #define DS2100_3100 1 /* DS2100/3100 Pmax */ #define DS5000_200 2 /* DS5000/200 3max */ diff --git a/arch/mips/dec/prom/identify.c b/arch/mips/dec/prom/identify.c index 9380588cb15..95e26f4bb38 100644 --- a/arch/mips/dec/prom/identify.c +++ b/arch/mips/dec/prom/identify.c @@ -2,7 +2,7 @@ * identify.c: machine identification code. * * Copyright (C) 1998 Harald Koerfgen and Paul M. Antoine - * Copyright (C) 2002, 2003, 2004 Maciej W. Rozycki + * Copyright (C) 2002, 2003, 2004, 2005 Maciej W. Rozycki */ #include <linux/init.h> #include <linux/kernel.h> @@ -12,6 +12,7 @@ #include <linux/types.h> #include <asm/bootinfo.h> + #include <asm/dec/ioasic.h> #include <asm/dec/ioasic_addrs.h> #include <asm/dec/kn01.h> @@ -21,12 +22,10 @@ #include <asm/dec/kn03.h> #include <asm/dec/kn230.h> #include <asm/dec/prom.h> +#include <asm/dec/system.h> #include "dectypes.h" -extern unsigned long mips_machgroup; -extern unsigned long mips_machtype; - static const char *dec_system_strings[] = { [MACH_DSUNKNOWN] "unknown DECstation", [MACH_DS23100] "DECstation 2100/3100", @@ -68,34 +67,47 @@ EXPORT_SYMBOL(dec_rtc_base); static inline void prom_init_kn01(void) { - dec_rtc_base = (void *)KN01_RTC_BASE; + dec_kn_slot_base = KN01_SLOT_BASE; dec_kn_slot_size = KN01_SLOT_SIZE; + + dec_rtc_base = (void *)CKSEG1ADDR(dec_kn_slot_base + KN01_RTC); } static inline void prom_init_kn230(void) { - dec_rtc_base = (void *)KN01_RTC_BASE; + dec_kn_slot_base = KN01_SLOT_BASE; dec_kn_slot_size = KN01_SLOT_SIZE; + + dec_rtc_base = (void *)CKSEG1ADDR(dec_kn_slot_base + KN01_RTC); } static inline void prom_init_kn02(void) { - dec_rtc_base = (void *)KN02_RTC_BASE; + dec_kn_slot_base = KN02_SLOT_BASE; dec_kn_slot_size = KN02_SLOT_SIZE; + dec_tc_bus = 1; + + dec_rtc_base = (void *)CKSEG1ADDR(dec_kn_slot_base + KN02_RTC); } static inline void prom_init_kn02xa(void) { - ioasic_base = (void *)KN02XA_IOASIC_BASE; - dec_rtc_base = (void *)KN02XA_RTC_BASE; + dec_kn_slot_base = KN02XA_SLOT_BASE; dec_kn_slot_size = IOASIC_SLOT_SIZE; + dec_tc_bus = 1; + + ioasic_base = (void *)CKSEG1ADDR(dec_kn_slot_base + IOASIC_IOCTL); + dec_rtc_base = (void *)CKSEG1ADDR(dec_kn_slot_base + IOASIC_TOY); } static inline void prom_init_kn03(void) { - ioasic_base = (void *)KN03_IOASIC_BASE; - dec_rtc_base = (void *)KN03_RTC_BASE; + dec_kn_slot_base = KN03_SLOT_BASE; dec_kn_slot_size = IOASIC_SLOT_SIZE; + dec_tc_bus = 1; + + ioasic_base = (void *)CKSEG1ADDR(dec_kn_slot_base + IOASIC_IOCTL); + dec_rtc_base = (void *)CKSEG1ADDR(dec_kn_slot_base + IOASIC_TOY); } @@ -121,9 +133,6 @@ void __init prom_identify_arch(u32 magic) dec_firmrev = (dec_sysid & 0xff00) >> 8; dec_etc = dec_sysid & 0xff; - /* We're obviously one of the DEC machines */ - mips_machgroup = MACH_GROUP_DEC; - /* * FIXME: This may not be an exhaustive list of DECStations/Servers! * Put all model-specific initialisation calls here. diff --git a/arch/mips/dec/prom/init.c b/arch/mips/dec/prom/init.c index 60f74256e68..4e1761e0a09 100644 --- a/arch/mips/dec/prom/init.c +++ b/arch/mips/dec/prom/init.c @@ -4,14 +4,16 @@ * Copyright (C) 1998 Harald Koerfgen * Copyright (C) 2002, 2004 Maciej W. Rozycki */ -#include <linux/config.h> #include <linux/init.h> +#include <linux/kernel.h> +#include <linux/linkage.h> #include <linux/smp.h> #include <linux/string.h> #include <linux/types.h> #include <asm/bootinfo.h> #include <asm/cpu.h> +#include <asm/cpu-type.h> #include <asm/processor.h> #include <asm/dec/prom.h> @@ -88,14 +90,10 @@ void __init prom_init(void) extern void dec_machine_halt(void); static char cpu_msg[] __initdata = "Sorry, this kernel is compiled for a wrong CPU type!\n"; - static char r3k_msg[] __initdata = - "Please recompile with \"CONFIG_CPU_R3000 = y\".\n"; - static char r4k_msg[] __initdata = - "Please recompile with \"CONFIG_CPU_R4x00 = y\".\n"; s32 argc = fw_arg0; - s32 argv = fw_arg1; + s32 *argv = (void *)fw_arg1; u32 magic = fw_arg2; - s32 prom_vec = fw_arg3; + s32 *prom_vec = (void *)fw_arg3; /* * Determine which PROM we have @@ -111,8 +109,10 @@ void __init prom_init(void) /* Were we compiled with the right CPU option? */ #if defined(CONFIG_CPU_R3000) - if ((current_cpu_data.cputype == CPU_R4000SC) || - (current_cpu_data.cputype == CPU_R4400SC)) { + if ((current_cpu_type() == CPU_R4000SC) || + (current_cpu_type() == CPU_R4400SC)) { + static char r4k_msg[] __initdata = + "Please recompile with \"CONFIG_CPU_R4x00 = y\".\n"; printk(cpu_msg); printk(r4k_msg); dec_machine_halt(); @@ -120,8 +120,10 @@ void __init prom_init(void) #endif #if defined(CONFIG_CPU_R4X00) - if ((current_cpu_data.cputype == CPU_R3000) || - (current_cpu_data.cputype == CPU_R3000A)) { + if ((current_cpu_type() == CPU_R3000) || + (current_cpu_type() == CPU_R3000A)) { + static char r3k_msg[] __initdata = + "Please recompile with \"CONFIG_CPU_R3000 = y\".\n"; printk(cpu_msg); printk(r3k_msg); dec_machine_halt(); diff --git a/arch/mips/dec/prom/locore.S b/arch/mips/dec/prom/locore.S index d9acdcefee8..f72b5741025 100644 --- a/arch/mips/dec/prom/locore.S +++ b/arch/mips/dec/prom/locore.S @@ -27,4 +27,3 @@ NESTED(genexcept_early, 0, sp) jr k0 rfe END(genexcept_early) - diff --git a/arch/mips/dec/prom/memory.c b/arch/mips/dec/prom/memory.c index e4f6f26425e..8c62316f22f 100644 --- a/arch/mips/dec/prom/memory.c +++ b/arch/mips/dec/prom/memory.c @@ -4,7 +4,6 @@ * Copyright (C) 1998 Harald Koerfgen, Frieder Streffer and Paul M. Antoine * Copyright (C) 2000, 2002 Maciej W. Rozycki */ -#include <linux/config.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/mm.h> @@ -19,7 +18,7 @@ #include <asm/sections.h> -volatile unsigned long mem_err = 0; /* So we know an error occurred */ +volatile unsigned long mem_err; /* So we know an error occurred */ /* * Probe memory in 4MB chunks, waiting for an error to tell us we've fallen @@ -35,22 +34,22 @@ static inline void pmax_setup_memory_region(void) extern char genexcept_early; /* Install exception handler */ - memcpy(&old_handler, (void *)(KSEG0 + 0x80), 0x80); - memcpy((void *)(KSEG0 + 0x80), &genexcept_early, 0x80); + memcpy(&old_handler, (void *)(CKSEG0 + 0x80), 0x80); + memcpy((void *)(CKSEG0 + 0x80), &genexcept_early, 0x80); /* read unmapped and uncached (KSEG1) * DECstations have at least 4MB RAM * Assume less than 480MB of RAM, as this is max for 5000/2xx * FIXME this should be replaced by the first free page! */ - for (memory_page = (unsigned char *) KSEG1 + CHUNK_SIZE; - (mem_err== 0) && (memory_page < ((unsigned char *) KSEG1+0x1E000000)); - memory_page += CHUNK_SIZE) { + for (memory_page = (unsigned char *)CKSEG1 + CHUNK_SIZE; + mem_err == 0 && memory_page < (unsigned char *)CKSEG1 + 0x1e00000; + memory_page += CHUNK_SIZE) { dummy = *memory_page; } - memcpy((void *)(KSEG0 + 0x80), &old_handler, 0x80); + memcpy((void *)(CKSEG0 + 0x80), &old_handler, 0x80); - add_memory_region(0, (unsigned long)memory_page - KSEG1 - CHUNK_SIZE, + add_memory_region(0, (unsigned long)memory_page - CKSEG1 - CHUNK_SIZE, BOOT_MEM_RAM); } @@ -65,7 +64,7 @@ static inline void rex_setup_memory_region(void) memmap *bm; /* some free 64k */ - bm = (memmap *)KSEG0ADDR(0x28000); + bm = (memmap *)CKSEG0ADDR(0x28000); bitmap_size = rex_getbitmap(bm); @@ -93,16 +92,16 @@ void __init prom_meminit(u32 magic) rex_setup_memory_region(); } -unsigned long __init prom_free_prom_memory(void) +void __init prom_free_prom_memory(void) { - unsigned long addr, end; + unsigned long end; /* * Free everything below the kernel itself but leave * the first page reserved for the exception handlers. */ -#if defined(CONFIG_DECLANCE) || defined(CONFIG_DECLANCE_MODULE) +#if IS_ENABLED(CONFIG_DECLANCE) /* * Leave 128 KB reserved for Lance memory for * IOASIC DECstations. @@ -115,16 +114,5 @@ unsigned long __init prom_free_prom_memory(void) #endif end = __pa(&_text); - addr = PAGE_SIZE; - while (addr < end) { - ClearPageReserved(virt_to_page(__va(addr))); - set_page_count(virt_to_page(__va(addr)), 1); - free_page((unsigned long)__va(addr)); - addr += PAGE_SIZE; - } - - printk("Freeing unused PROM memory: %ldk freed\n", - (end - PAGE_SIZE) >> 10); - - return end - PAGE_SIZE; + free_init_pages("unused PROM memory", PAGE_SIZE, end); } |