diff options
Diffstat (limited to 'arch/mips/jazz')
| -rw-r--r-- | arch/mips/jazz/Kconfig | 6 | ||||
| -rw-r--r-- | arch/mips/jazz/Makefile | 4 | ||||
| -rw-r--r-- | arch/mips/jazz/Platform | 6 | ||||
| -rw-r--r-- | arch/mips/jazz/int-handler.S | 282 | ||||
| -rw-r--r-- | arch/mips/jazz/io.c | 135 | ||||
| -rw-r--r-- | arch/mips/jazz/irq.c | 151 | ||||
| -rw-r--r-- | arch/mips/jazz/jazzdma.c | 61 | ||||
| -rw-r--r-- | arch/mips/jazz/reset.c | 17 | ||||
| -rw-r--r-- | arch/mips/jazz/setup.c | 202 |
9 files changed, 297 insertions, 567 deletions
diff --git a/arch/mips/jazz/Kconfig b/arch/mips/jazz/Kconfig index 1f372b0d255..fb1e072da30 100644 --- a/arch/mips/jazz/Kconfig +++ b/arch/mips/jazz/Kconfig @@ -1,6 +1,6 @@ config ACER_PICA_61 - bool "Support for Acer PICA 1 chipset (EXPERIMENTAL)" - depends on MACH_JAZZ && EXPERIMENTAL + bool "Support for Acer PICA 1 chipset" + depends on MACH_JAZZ select DMA_NONCOHERENT select SYS_SUPPORTS_LITTLE_ENDIAN help @@ -13,7 +13,7 @@ config MIPS_MAGNUM_4000 bool "Support for MIPS Magnum 4000" depends on MACH_JAZZ select DMA_NONCOHERENT - select SYS_SUPPORTS_BIG_ENDIAN if EXPERIMENTAL + select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_LITTLE_ENDIAN help This is a machine with a R4000 100 MHz CPU. To compile a Linux diff --git a/arch/mips/jazz/Makefile b/arch/mips/jazz/Makefile index 85749246a67..624b0ee3e5d 100644 --- a/arch/mips/jazz/Makefile +++ b/arch/mips/jazz/Makefile @@ -2,6 +2,4 @@ # Makefile for the Jazz family specific parts of the kernel # -obj-y := int-handler.o irq.o jazzdma.o reset.o setup.o - -EXTRA_AFLAGS := $(CFLAGS) +obj-y := irq.o jazzdma.o reset.o setup.o diff --git a/arch/mips/jazz/Platform b/arch/mips/jazz/Platform new file mode 100644 index 00000000000..3373788acca --- /dev/null +++ b/arch/mips/jazz/Platform @@ -0,0 +1,6 @@ +# +# Acer PICA 61, Mips Magnum 4000 and Olivetti M700. +# +platform-$(CONFIG_MACH_JAZZ) += jazz/ +cflags-$(CONFIG_MACH_JAZZ) += -I$(srctree)/arch/mips/include/asm/mach-jazz +load-$(CONFIG_MACH_JAZZ) += 0xffffffff80080000 diff --git a/arch/mips/jazz/int-handler.S b/arch/mips/jazz/int-handler.S deleted file mode 100644 index 4dbcf91db88..00000000000 --- a/arch/mips/jazz/int-handler.S +++ /dev/null @@ -1,282 +0,0 @@ -/* - * 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. - * - * Copyright (C) 1995, 1996, 1997, 1998 by Ralf Baechle and Andreas Busse - * - * Jazz family specific interrupt stuff - * - * To do: On Jazz machines we remap some non-ISA interrupts to ISA - * interrupts. These interrupts should use their own vectors. - * Squeeze the last cycles out of the handlers. Only a dead - * cycle is a good cycle. - */ -#include <asm/asm.h> -#include <asm/mipsregs.h> -#include <asm/jazz.h> -#include <asm/regdef.h> -#include <asm/stackframe.h> - -/* - * jazz_handle_int: Interrupt handler for the ACER Pica-61 boards - */ - .set noreorder - - NESTED(jazz_handle_int, PT_SIZE, ra) - .set noat - SAVE_ALL - CLI - .set at - - /* - * Get pending interrupts - */ - mfc0 t0,CP0_CAUSE # get pending interrupts - mfc0 t1,CP0_STATUS # get enabled interrupts - and t0,t1 # isolate allowed ones - andi t0,0xff00 # isolate pending bits - beqz t0,3f - sll t0,16 # delay slot - - /* - * Find irq with highest priority - * FIXME: This is slow - use binary search - */ - la t1,ll_vectors -1: bltz t0,2f # found pending irq - sll t0,1 - b 1b - subu t1,PTRSIZE # delay slot - - /* - * Do the low-level stuff - */ -2: lw t0,(t1) - jr t0 - nop # delay slot - END(jazz_handle_int) - -ll_sw0: li s1,~IE_SW0 - mfc0 t0,CP0_CAUSE - and t0,s1 - mtc0 t0,CP0_CAUSE - PANIC("Unimplemented sw0 handler") - -ll_sw1: li s1,~IE_SW1 - mfc0 t0,CP0_CAUSE - and t0,s1 - mtc0 t0,CP0_CAUSE - PANIC("Unimplemented sw1 handler") - -ll_local_dma: li s1,~IE_IRQ0 - PANIC("Unimplemented local_dma handler") - -ll_local_dev: lbu t0,JAZZ_IO_IRQ_SOURCE -#if PTRSIZE == 8 /* True 64 bit kernel */ - dsll t0,1 -#endif - .set reorder - LONG_L t0,local_vector(t0) - jr t0 - .set noreorder - -/* - * The braindead PICA hardware gives us no way to distinguish if we really - * received interrupt 7 from the (E)ISA bus or if we just received an - * interrupt with no findable cause. This sometimes happens with braindead - * cards. Oh well - for all the Jazz boxes slots are more or less just - * whistles and bells and we're aware of the problem. - */ -ll_isa_irq: lw a0, JAZZ_EISA_IRQ_ACK - - jal do_IRQ - move a1,sp - - j ret_from_irq - nop - -/* - * Hmm... This is not just a plain PC clone so the question is - * which devices on Jazz machines can generate an (E)ISA NMI? - * (Writing to nonexistent memory?) - */ -ll_isa_nmi: li s1,~IE_IRQ3 - PANIC("Unimplemented isa_nmi handler") - -/* - * Timer IRQ - remapped to be more similar to an IBM compatible. - * - * The timer interrupt is handled specially to ensure that the jiffies - * variable is updated at all times. Specifically, the timer interrupt is - * just like the complete handlers except that it is invoked with interrupts - * disabled and should never re-enable them. If other interrupts were - * allowed to be processed while the timer interrupt is active, then the - * other interrupts would have to avoid using the jiffies variable for delay - * and interval timing operations to avoid hanging the system. - */ -ll_timer: lw zero,JAZZ_TIMER_REGISTER # timer irq cleared on read - li s1,~IE_IRQ4 - - li a0, JAZZ_TIMER_IRQ - jal do_IRQ - move a1,sp - - mfc0 t0,CP0_STATUS # disable interrupts again - ori t0,1 - xori t0,1 - mtc0 t0,CP0_STATUS - - j ret_from_irq - nop - -/* - * CPU count/compare IRQ (unused) - */ -ll_count: j ret_from_irq - mtc0 zero,CP0_COMPARE - -#if 0 -/* - * Call the handler for the interrupt - * (Currently unused) - */ -call_real: /* - * temporarily disable interrupt - */ - mfc0 t2,CP0_STATUS - and t2,s1 - mtc0 t2,CP0_STATUS - nor s1,zero,s1 - jal do_IRQ - - /* - * reenable interrupt - */ - mfc0 t2,CP0_STATUS - or t2,s1 - mtc0 t2,CP0_STATUS - j ret_from_irq -#endif - - .data - PTR ll_sw0 # SW0 - PTR ll_sw1 # SW1 - PTR ll_local_dma # Local DMA - PTR ll_local_dev # Local devices - PTR ll_isa_irq # ISA IRQ - PTR ll_isa_nmi # ISA NMI - PTR ll_timer # Timer -ll_vectors: PTR ll_count # Count/Compare IRQ - - /* - * Interrupt handlers for local devices. - */ - .text - .set reorder -loc_no_irq: PANIC("Unimplemented loc_no_irq handler") -/* - * Parallel port IRQ - */ -loc_parallel: li s1,~JAZZ_IE_PARALLEL - li a0,JAZZ_PARALLEL_IRQ - b loc_call - -/* - * Floppy IRQ - */ -loc_floppy: li s1,~JAZZ_IE_FLOPPY - li a0,JAZZ_FLOPPY_IRQ - b loc_call - -/* - * Sound IRQ - */ -loc_sound: PANIC("Unimplemented loc_sound handler") -loc_video: PANIC("Unimplemented loc_video handler") - -/* - * Ethernet interrupt handler - */ -loc_ethernet: li s1,~JAZZ_IE_ETHERNET - li a0,JAZZ_ETHERNET_IRQ - b loc_call - -/* - * SCSI interrupt handler - */ -loc_scsi: li s1,~JAZZ_IE_SCSI - li a0,JAZZ_SCSI_IRQ - b loc_call - -/* - * Keyboard interrupt handler - */ -loc_keyboard: li s1,~JAZZ_IE_KEYBOARD - li a0,JAZZ_KEYBOARD_IRQ - b loc_call - -/* - * Mouse interrupt handler - */ -loc_mouse: li s1,~JAZZ_IE_MOUSE - li a0,JAZZ_MOUSE_IRQ - b loc_call - -/* - * Serial port 1 IRQ - */ -loc_serial1: li s1,~JAZZ_IE_SERIAL1 - li a0,JAZZ_SERIAL1_IRQ - b loc_call - -/* - * Serial port 2 IRQ - */ -loc_serial2: li s1,~JAZZ_IE_SERIAL2 - li a0,JAZZ_SERIAL2_IRQ - b loc_call - -/* - * Call the interrupt handler for an interrupt generated by a - * local device. - */ -loc_call: /* - * Temporarily disable interrupt source - */ - lhu t2,JAZZ_IO_IRQ_ENABLE - and t2,s1 - sh t2,JAZZ_IO_IRQ_ENABLE - - nor s1,zero,s1 - jal do_IRQ - - /* - * Reenable interrupt - */ - lhu t2,JAZZ_IO_IRQ_ENABLE - or t2,s1 - sh t2,JAZZ_IO_IRQ_ENABLE - - j ret_from_irq - -/* - * "Jump extender" to reach spurious_interrupt - */ -3: j spurious_interrupt - -/* - * Vectors for interrupts generated by local devices - */ - .data -local_vector: PTR loc_no_irq - PTR loc_parallel - PTR loc_floppy - PTR loc_sound - PTR loc_video - PTR loc_ethernet - PTR loc_scsi - PTR loc_keyboard - PTR loc_mouse - PTR loc_serial1 - PTR loc_serial2 diff --git a/arch/mips/jazz/io.c b/arch/mips/jazz/io.c deleted file mode 100644 index e86904454c8..00000000000 --- a/arch/mips/jazz/io.c +++ /dev/null @@ -1,135 +0,0 @@ -/* - * 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. - * - * Low level I/O functions for Jazz family machines. - * - * Copyright (C) 1997 by Ralf Baechle. - */ -#include <linux/string.h> -#include <linux/spinlock.h> -#include <asm/addrspace.h> -#include <asm/system.h> -#include <asm/jazz.h> - -/* - * Map an 16mb segment of the EISA address space to 0xe3000000; - */ -static inline void map_eisa_address(unsigned long address) -{ - /* XXX */ - /* We've got an wired entry in the TLB. We just need to modify it. - fast and clean. But since we want to get rid of wired entries - things are a little bit more complicated ... */ -} - -static unsigned char jazz_readb(unsigned long addr) -{ - unsigned char res; - - map_eisa_address(addr); - addr &= 0xffffff; - res = *(volatile unsigned char *) (JAZZ_EISA_BASE + addr); - - return res; -} - -static unsigned short jazz_readw(unsigned long addr) -{ - unsigned short res; - - map_eisa_address(addr); - addr &= 0xffffff; - res = *(volatile unsigned char *) (JAZZ_EISA_BASE + addr); - - return res; -} - -static unsigned int jazz_readl(unsigned long addr) -{ - unsigned int res; - - map_eisa_address(addr); - addr &= 0xffffff; - res = *(volatile unsigned char *) (JAZZ_EISA_BASE + addr); - - return res; -} - -static void jazz_writeb(unsigned char val, unsigned long addr) -{ - map_eisa_address(addr); - addr &= 0xffffff; - *(volatile unsigned char *) (JAZZ_EISA_BASE + addr) = val; -} - -static void jazz_writew(unsigned short val, unsigned long addr) -{ - map_eisa_address(addr); - addr &= 0xffffff; - *(volatile unsigned char *) (JAZZ_EISA_BASE + addr) = val; -} - -static void jazz_writel(unsigned int val, unsigned long addr) -{ - map_eisa_address(addr); - addr &= 0xffffff; - *(volatile unsigned char *) (JAZZ_EISA_BASE + addr) = val; -} - -static void jazz_memset_io(unsigned long addr, int val, unsigned long len) -{ - unsigned long waddr; - - waddr = JAZZ_EISA_BASE | (addr & 0xffffff); - while(len) { - unsigned long fraglen; - - fraglen = (~addr + 1) & 0xffffff; - fraglen = (fraglen < len) ? fraglen : len; - map_eisa_address(addr); - memset((char *)waddr, val, fraglen); - addr += fraglen; - waddr = waddr + fraglen - 0x1000000; - len -= fraglen; - } -} - -static void jazz_memcpy_fromio(unsigned long to, unsigned long from, unsigned long len) -{ - unsigned long waddr; - - waddr = JAZZ_EISA_BASE | (from & 0xffffff); - while(len) { - unsigned long fraglen; - - fraglen = (~from + 1) & 0xffffff; - fraglen = (fraglen < len) ? fraglen : len; - map_eisa_address(from); - memcpy((void *)to, (void *)waddr, fraglen); - to += fraglen; - from += fraglen; - waddr = waddr + fraglen - 0x1000000; - len -= fraglen; - } -} - -static void jazz_memcpy_toio(unsigned long to, unsigned long from, unsigned long len) -{ - unsigned long waddr; - - waddr = JAZZ_EISA_BASE | (to & 0xffffff); - while(len) { - unsigned long fraglen; - - fraglen = (~to + 1) & 0xffffff; - fraglen = (fraglen < len) ? fraglen : len; - map_eisa_address(to); - memcpy((char *)to + JAZZ_EISA_BASE, (void *)from, fraglen); - to += fraglen; - from += fraglen; - waddr = waddr + fraglen - 0x1000000; - len -= fraglen; - } -} diff --git a/arch/mips/jazz/irq.c b/arch/mips/jazz/irq.c index b309b1bcf2e..e1ea4f625f7 100644 --- a/arch/mips/jazz/irq.c +++ b/arch/mips/jazz/irq.c @@ -4,79 +4,60 @@ * for more details. * * Copyright (C) 1992 Linus Torvalds - * Copyright (C) 1994 - 2001, 2003 Ralf Baechle + * Copyright (C) 1994 - 2001, 2003, 07 Ralf Baechle */ +#include <linux/clockchips.h> +#include <linux/i8253.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/kernel.h> +#include <linux/smp.h> #include <linux/spinlock.h> +#include <linux/irq.h> +#include <asm/irq_cpu.h> #include <asm/i8259.h> #include <asm/io.h> #include <asm/jazz.h> +#include <asm/pgtable.h> +#include <asm/tlbmisc.h> -extern asmlinkage void jazz_handle_int(void); +static DEFINE_RAW_SPINLOCK(r4030_lock); -static DEFINE_SPINLOCK(r4030_lock); - -static void enable_r4030_irq(unsigned int irq) +static void enable_r4030_irq(struct irq_data *d) { - unsigned int mask = 1 << (irq - JAZZ_PARALLEL_IRQ); + unsigned int mask = 1 << (d->irq - JAZZ_IRQ_START); unsigned long flags; - spin_lock_irqsave(&r4030_lock, flags); + raw_spin_lock_irqsave(&r4030_lock, flags); mask |= r4030_read_reg16(JAZZ_IO_IRQ_ENABLE); r4030_write_reg16(JAZZ_IO_IRQ_ENABLE, mask); - spin_unlock_irqrestore(&r4030_lock, flags); + raw_spin_unlock_irqrestore(&r4030_lock, flags); } -static unsigned int startup_r4030_irq(unsigned int irq) +void disable_r4030_irq(struct irq_data *d) { - enable_r4030_irq(irq); - return 0; /* never anything pending */ -} - -#define shutdown_r4030_irq disable_r4030_irq - -void disable_r4030_irq(unsigned int irq) -{ - unsigned int mask = ~(1 << (irq - JAZZ_PARALLEL_IRQ)); + unsigned int mask = ~(1 << (d->irq - JAZZ_IRQ_START)); unsigned long flags; - spin_lock_irqsave(&r4030_lock, flags); + raw_spin_lock_irqsave(&r4030_lock, flags); mask &= r4030_read_reg16(JAZZ_IO_IRQ_ENABLE); r4030_write_reg16(JAZZ_IO_IRQ_ENABLE, mask); - spin_unlock_irqrestore(&r4030_lock, flags); -} - -#define mask_and_ack_r4030_irq disable_r4030_irq - -static void end_r4030_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - enable_r4030_irq(irq); + raw_spin_unlock_irqrestore(&r4030_lock, flags); } -static struct hw_interrupt_type r4030_irq_type = { - .typename = "R4030", - .startup = startup_r4030_irq, - .shutdown = shutdown_r4030_irq, - .enable = enable_r4030_irq, - .disable = disable_r4030_irq, - .ack = mask_and_ack_r4030_irq, - .end = end_r4030_irq, +static struct irq_chip r4030_irq_type = { + .name = "R4030", + .irq_mask = disable_r4030_irq, + .irq_unmask = enable_r4030_irq, }; void __init init_r4030_ints(void) { int i; - for (i = JAZZ_PARALLEL_IRQ; i <= JAZZ_TIMER_IRQ; i++) { - irq_desc[i].status = IRQ_DISABLED; - irq_desc[i].action = 0; - irq_desc[i].depth = 1; - irq_desc[i].handler = &r4030_irq_type; - } + for (i = JAZZ_IRQ_START; i <= JAZZ_IRQ_END; i++) + irq_set_chip_and_handler(i, &r4030_irq_type, handle_level_irq); r4030_write_reg16(JAZZ_IO_IRQ_ENABLE, 0); r4030_read_reg16(JAZZ_IO_IRQ_SOURCE); /* clear pending IRQs */ @@ -90,10 +71,92 @@ void __init init_r4030_ints(void) */ void __init arch_init_irq(void) { - set_except_vector(0, jazz_handle_int); + /* + * this is a hack to get back the still needed wired mapping + * killed by init_mm() + */ + + /* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */ + add_wired_entry(0x02000017, 0x03c00017, 0xe0000000, PM_64K); + /* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */ + add_wired_entry(0x02400017, 0x02440017, 0xe2000000, PM_16M); + /* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */ + add_wired_entry(0x01800017, 0x01000017, 0xe4000000, PM_4M); init_i8259_irqs(); /* Integrated i8259 */ + mips_cpu_irq_init(); init_r4030_ints(); - change_c0_status(ST0_IM, IE_IRQ4 | IE_IRQ3 | IE_IRQ2 | IE_IRQ1); + change_c0_status(ST0_IM, IE_IRQ2 | IE_IRQ1); +} + +asmlinkage void plat_irq_dispatch(void) +{ + unsigned int pending = read_c0_cause() & read_c0_status(); + unsigned int irq; + + if (pending & IE_IRQ4) { + r4030_read_reg32(JAZZ_TIMER_REGISTER); + do_IRQ(JAZZ_TIMER_IRQ); + } else if (pending & IE_IRQ2) { + irq = *(volatile u8 *)JAZZ_EISA_IRQ_ACK; + do_IRQ(irq); + } else if (pending & IE_IRQ1) { + irq = *(volatile u8 *)JAZZ_IO_IRQ_SOURCE >> 2; + if (likely(irq > 0)) + do_IRQ(irq + JAZZ_IRQ_START - 1); + else + panic("Unimplemented loc_no_irq handler"); + } +} + +static void r4030_set_mode(enum clock_event_mode mode, + struct clock_event_device *evt) +{ + /* Nothing to do ... */ +} + +struct clock_event_device r4030_clockevent = { + .name = "r4030", + .features = CLOCK_EVT_FEAT_PERIODIC, + .rating = 300, + .irq = JAZZ_TIMER_IRQ, + .set_mode = r4030_set_mode, +}; + +static irqreturn_t r4030_timer_interrupt(int irq, void *dev_id) +{ + struct clock_event_device *cd = dev_id; + + cd->event_handler(cd); + return IRQ_HANDLED; +} + +static struct irqaction r4030_timer_irqaction = { + .handler = r4030_timer_interrupt, + .flags = IRQF_TIMER, + .name = "R4030 timer", +}; + +void __init plat_time_init(void) +{ + struct clock_event_device *cd = &r4030_clockevent; + struct irqaction *action = &r4030_timer_irqaction; + unsigned int cpu = smp_processor_id(); + + BUG_ON(HZ != 100); + + cd->cpumask = cpumask_of(cpu); + clockevents_register_device(cd); + action->dev_id = cd; + setup_irq(JAZZ_TIMER_IRQ, action); + + /* + * Set clock to 100Hz. + * + * The R4030 timer receives an input clock of 1kHz which is divieded by + * a programmable 4-bit divider. This makes it fairly inflexible. + */ + r4030_write_reg32(JAZZ_TIMER_INTERVAL, 9); + setup_pit_timer(); } diff --git a/arch/mips/jazz/jazzdma.c b/arch/mips/jazz/jazzdma.c index 46e421e1434..db6f5afff4f 100644 --- a/arch/mips/jazz/jazzdma.c +++ b/arch/mips/jazz/jazzdma.c @@ -14,6 +14,7 @@ #include <linux/mm.h> #include <linux/bootmem.h> #include <linux/spinlock.h> +#include <linux/gfp.h> #include <asm/mipsregs.h> #include <asm/jazz.h> #include <asm/io.h> @@ -27,7 +28,7 @@ */ #define CONF_DEBUG_VDMA 0 -static unsigned long vdma_pagetable_start; +static VDMA_PGTBL_ENTRY *pgtbl; static DEFINE_SPINLOCK(vdma_lock); @@ -46,7 +47,6 @@ static int debuglvl = 3; */ static inline void vdma_pgtbl_init(void) { - VDMA_PGTBL_ENTRY *pgtbl = (VDMA_PGTBL_ENTRY *) vdma_pagetable_start; unsigned long paddr = 0; int i; @@ -60,30 +60,30 @@ static inline void vdma_pgtbl_init(void) /* * Initialize the Jazz R4030 dma controller */ -void __init vdma_init(void) +static int __init vdma_init(void) { /* - * Allocate 32k of memory for DMA page tables. This needs to be page + * Allocate 32k of memory for DMA page tables. This needs to be page * aligned and should be uncached to avoid cache flushing after every * update. */ - vdma_pagetable_start = alloc_bootmem_low_pages(VDMA_PGTBL_SIZE); - if (!vdma_pagetable_start) - BUG(); - dma_cache_wback_inv(vdma_pagetable_start, VDMA_PGTBL_SIZE); - vdma_pagetable_start = KSEG1ADDR(vdma_pagetable_start); + pgtbl = (VDMA_PGTBL_ENTRY *)__get_free_pages(GFP_KERNEL | GFP_DMA, + get_order(VDMA_PGTBL_SIZE)); + BUG_ON(!pgtbl); + dma_cache_wback_inv((unsigned long)pgtbl, VDMA_PGTBL_SIZE); + pgtbl = (VDMA_PGTBL_ENTRY *)KSEG1ADDR(pgtbl); /* * Clear the R4030 translation table */ vdma_pgtbl_init(); - r4030_write_reg32(JAZZ_R4030_TRSTBL_BASE, - CPHYSADDR(vdma_pagetable_start)); + r4030_write_reg32(JAZZ_R4030_TRSTBL_BASE, CPHYSADDR(pgtbl)); r4030_write_reg32(JAZZ_R4030_TRSTBL_LIM, VDMA_PGTBL_SIZE); r4030_write_reg32(JAZZ_R4030_TRSTBL_INV, 0); - printk("VDMA: R4030 DMA pagetables initialized.\n"); + printk(KERN_INFO "VDMA: R4030 DMA pagetables initialized.\n"); + return 0; } /* @@ -91,7 +91,6 @@ void __init vdma_init(void) */ unsigned long vdma_alloc(unsigned long paddr, unsigned long size) { - VDMA_PGTBL_ENTRY *entry = (VDMA_PGTBL_ENTRY *) vdma_pagetable_start; int first, last, pages, frame, i; unsigned long laddr, flags; @@ -113,10 +112,10 @@ unsigned long vdma_alloc(unsigned long paddr, unsigned long size) /* * Find free chunk */ - pages = (size + 4095) >> 12; /* no. of pages to allocate */ + pages = VDMA_PAGE(paddr + size) - VDMA_PAGE(paddr) + 1; first = 0; while (1) { - while (entry[first].owner != VDMA_PAGE_EMPTY && + while (pgtbl[first].owner != VDMA_PAGE_EMPTY && first < VDMA_PGTBL_ENTRIES) first++; if (first + pages > VDMA_PGTBL_ENTRIES) { /* nothing free */ spin_unlock_irqrestore(&vdma_lock, flags); @@ -124,12 +123,13 @@ unsigned long vdma_alloc(unsigned long paddr, unsigned long size) } last = first + 1; - while (entry[last].owner == VDMA_PAGE_EMPTY + while (pgtbl[last].owner == VDMA_PAGE_EMPTY && last - first < pages) last++; if (last - first == pages) break; /* found */ + first = last + 1; } /* @@ -139,8 +139,8 @@ unsigned long vdma_alloc(unsigned long paddr, unsigned long size) frame = paddr & ~(VDMA_PAGESIZE - 1); for (i = first; i < last; i++) { - entry[i].frame = frame; - entry[i].owner = laddr; + pgtbl[i].frame = frame; + pgtbl[i].owner = laddr; frame += VDMA_PAGESIZE; } @@ -159,10 +159,10 @@ unsigned long vdma_alloc(unsigned long paddr, unsigned long size) printk("%08x ", i << 12); printk("\nPADDR: "); for (i = first; i < last; i++) - printk("%08x ", entry[i].frame); + printk("%08x ", pgtbl[i].frame); printk("\nOWNER: "); for (i = first; i < last; i++) - printk("%08x ", entry[i].owner); + printk("%08x ", pgtbl[i].owner); printk("\n"); } @@ -180,7 +180,6 @@ EXPORT_SYMBOL(vdma_alloc); */ int vdma_free(unsigned long laddr) { - VDMA_PGTBL_ENTRY *pgtbl = (VDMA_PGTBL_ENTRY *) vdma_pagetable_start; int i; i = laddr >> 12; @@ -192,7 +191,7 @@ int vdma_free(unsigned long laddr) return -1; } - while (pgtbl[i].owner == laddr && i < VDMA_PGTBL_ENTRIES) { + while (i < VDMA_PGTBL_ENTRIES && pgtbl[i].owner == laddr) { pgtbl[i].owner = VDMA_PAGE_EMPTY; i++; } @@ -212,27 +211,24 @@ EXPORT_SYMBOL(vdma_free); */ int vdma_remap(unsigned long laddr, unsigned long paddr, unsigned long size) { - VDMA_PGTBL_ENTRY *pgtbl = - (VDMA_PGTBL_ENTRY *) vdma_pagetable_start; - int first, pages, npages; + int first, pages; if (laddr > 0xffffff) { if (vdma_debug) printk ("vdma_map: Invalid logical address: %08lx\n", laddr); - return -EINVAL; /* invalid logical address */ + return -EINVAL; /* invalid logical address */ } if (paddr > 0x1fffffff) { if (vdma_debug) printk ("vdma_map: Invalid physical address: %08lx\n", paddr); - return -EINVAL; /* invalid physical address */ + return -EINVAL; /* invalid physical address */ } - npages = pages = - (((paddr & (VDMA_PAGESIZE - 1)) + size) >> 12) + 1; + pages = (((paddr & (VDMA_PAGESIZE - 1)) + size) >> 12) + 1; first = laddr >> 12; if (vdma_debug) printk("vdma_remap: first=%x, pages=%x\n", first, pages); @@ -288,8 +284,6 @@ unsigned long vdma_phys2log(unsigned long paddr) { int i; int frame; - VDMA_PGTBL_ENTRY *pgtbl = - (VDMA_PGTBL_ENTRY *) vdma_pagetable_start; frame = paddr & ~(VDMA_PAGESIZE - 1); @@ -311,9 +305,6 @@ EXPORT_SYMBOL(vdma_phys2log); */ unsigned long vdma_log2phys(unsigned long laddr) { - VDMA_PGTBL_ENTRY *pgtbl = - (VDMA_PGTBL_ENTRY *) vdma_pagetable_start; - return pgtbl[laddr >> 12].frame + (laddr & (VDMA_PAGESIZE - 1)); } @@ -563,3 +554,5 @@ int vdma_get_enable(int channel) return enable; } + +arch_initcall(vdma_init); diff --git a/arch/mips/jazz/reset.c b/arch/mips/jazz/reset.c index 2a9754750bc..dd889fe86bd 100644 --- a/arch/mips/jazz/reset.c +++ b/arch/mips/jazz/reset.c @@ -6,10 +6,6 @@ */ #include <linux/jiffies.h> #include <asm/jazz.h> -#include <asm/io.h> -#include <asm/system.h> -#include <asm/reboot.h> -#include <asm/delay.h> #define KBD_STAT_IBF 0x02 /* Keyboard input buffer full */ @@ -53,17 +49,8 @@ void jazz_machine_restart(char *command) { while(1) { kb_wait(); - jazz_write_command (0xd1); + jazz_write_command(0xd1); kb_wait(); - jazz_write_output (0x00); + jazz_write_output(0x00); } } - -void jazz_machine_halt(void) -{ -} - -void jazz_machine_power_off(void) -{ - /* Jazz machines don't have a software power switch */ -} diff --git a/arch/mips/jazz/setup.c b/arch/mips/jazz/setup.c index 044df9d4ab7..e4374a5651c 100644 --- a/arch/mips/jazz/setup.c +++ b/arch/mips/jazz/setup.c @@ -5,95 +5,195 @@ * License. See the file "COPYING" in the main directory of this archive * for more details. * - * Copyright (C) 1996, 1997, 1998, 2001 by Ralf Baechle + * Copyright (C) 1996, 1997, 1998, 2001, 07, 08 by Ralf Baechle * Copyright (C) 2001 MIPS Technologies, Inc. + * Copyright (C) 2007 by Thomas Bogendoerfer */ -#include <linux/config.h> #include <linux/eisa.h> -#include <linux/hdreg.h> #include <linux/init.h> #include <linux/ioport.h> -#include <linux/sched.h> -#include <linux/interrupt.h> -#include <linux/mm.h> #include <linux/console.h> -#include <linux/fb.h> -#include <linux/ide.h> -#include <asm/bootinfo.h> -#include <asm/irq.h> +#include <linux/screen_info.h> +#include <linux/platform_device.h> +#include <linux/serial_8250.h> + #include <asm/jazz.h> #include <asm/jazzdma.h> -#include <asm/ptrace.h> #include <asm/reboot.h> -#include <asm/io.h> #include <asm/pgtable.h> -#include <asm/time.h> -#include <asm/traps.h> +#include <asm/tlbmisc.h> extern asmlinkage void jazz_handle_int(void); extern void jazz_machine_restart(char *command); -extern void jazz_machine_halt(void); -extern void jazz_machine_power_off(void); - -static void __init jazz_time_init(struct irqaction *irq) -{ - /* set the clock to 100 Hz */ - r4030_write_reg32(JAZZ_TIMER_INTERVAL, 9); - setup_irq(JAZZ_TIMER_IRQ, irq); -} static struct resource jazz_io_resources[] = { - { "dma1", 0x00, 0x1f, IORESOURCE_BUSY }, - { "timer", 0x40, 0x5f, IORESOURCE_BUSY }, - { "dma page reg", 0x80, 0x8f, IORESOURCE_BUSY }, - { "dma2", 0xc0, 0xdf, IORESOURCE_BUSY }, + { + .start = 0x00, + .end = 0x1f, + .name = "dma1", + .flags = IORESOURCE_BUSY + }, { + .start = 0x40, + .end = 0x5f, + .name = "timer", + .flags = IORESOURCE_BUSY + }, { + .start = 0x80, + .end = 0x8f, + .name = "dma page reg", + .flags = IORESOURCE_BUSY + }, { + .start = 0xc0, + .end = 0xdf, + .name = "dma2", + .flags = IORESOURCE_BUSY + } }; -void __init plat_setup(void) +void __init plat_mem_setup(void) { int i; /* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */ - add_wired_entry (0x02000017, 0x03c00017, 0xe0000000, PM_64K); - + add_wired_entry(0x02000017, 0x03c00017, 0xe0000000, PM_64K); /* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */ - add_wired_entry (0x02400017, 0x02440017, 0xe2000000, PM_16M); - + add_wired_entry(0x02400017, 0x02440017, 0xe2000000, PM_16M); /* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */ - add_wired_entry (0x01800017, 0x01000017, 0xe4000000, PM_4M); + add_wired_entry(0x01800017, 0x01000017, 0xe4000000, PM_4M); set_io_port_base(JAZZ_PORT_BASE); #ifdef CONFIG_EISA - if (mips_machtype == MACH_MIPS_MAGNUM_4000) - EISA_bus = 1; + EISA_bus = 1; #endif - isa_slot_offset = 0xe3000000; /* request I/O space for devices used on all i[345]86 PCs */ for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++) request_resource(&ioport_resource, jazz_io_resources + i); - board_timer_setup = jazz_time_init; /* The RTC is outside the port address space */ _machine_restart = jazz_machine_restart; - _machine_halt = jazz_machine_halt; - _machine_power_off = jazz_machine_power_off; - -#warning "Somebody should check if screen_info is ok for Jazz." +#ifdef CONFIG_VT screen_info = (struct screen_info) { - 0, 0, /* orig-x, orig-y */ - 0, /* unused */ - 0, /* orig_video_page */ - 0, /* orig_video_mode */ - 160, /* orig_video_cols */ - 0, 0, 0, /* unused, ega_bx, unused */ - 64, /* orig_video_lines */ - 0, /* orig_video_isVGA */ - 16 /* orig_video_points */ + .orig_video_cols = 160, + .orig_video_lines = 64, + .orig_video_points = 16, }; +#endif + + add_preferred_console("ttyS", 0, "9600"); +} + +#ifdef CONFIG_OLIVETTI_M700 +#define UART_CLK 1843200 +#else +/* Some Jazz machines seem to have an 8MHz crystal clock but I don't know + exactly which ones ... XXX */ +#define UART_CLK (8000000 / 16) /* ( 3072000 / 16) */ +#endif + +#define MEMPORT(_base, _irq) \ + { \ + .mapbase = (_base), \ + .membase = (void *)(_base), \ + .irq = (_irq), \ + .uartclk = UART_CLK, \ + .iotype = UPIO_MEM, \ + .flags = UPF_BOOT_AUTOCONF, \ + } + +static struct plat_serial8250_port jazz_serial_data[] = { + MEMPORT(JAZZ_SERIAL1_BASE, JAZZ_SERIAL1_IRQ), + MEMPORT(JAZZ_SERIAL2_BASE, JAZZ_SERIAL2_IRQ), + { }, +}; + +static struct platform_device jazz_serial8250_device = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev = { + .platform_data = jazz_serial_data, + }, +}; - vdma_init(); +static struct resource jazz_esp_rsrc[] = { + { + .start = JAZZ_SCSI_BASE, + .end = JAZZ_SCSI_BASE + 31, + .flags = IORESOURCE_MEM + }, + { + .start = JAZZ_SCSI_DMA, + .end = JAZZ_SCSI_DMA, + .flags = IORESOURCE_MEM + }, + { + .start = JAZZ_SCSI_IRQ, + .end = JAZZ_SCSI_IRQ, + .flags = IORESOURCE_IRQ + } +}; + +static struct platform_device jazz_esp_pdev = { + .name = "jazz_esp", + .num_resources = ARRAY_SIZE(jazz_esp_rsrc), + .resource = jazz_esp_rsrc +}; + +static struct resource jazz_sonic_rsrc[] = { + { + .start = JAZZ_ETHERNET_BASE, + .end = JAZZ_ETHERNET_BASE + 0xff, + .flags = IORESOURCE_MEM + }, + { + .start = JAZZ_ETHERNET_IRQ, + .end = JAZZ_ETHERNET_IRQ, + .flags = IORESOURCE_IRQ + } +}; + +static struct platform_device jazz_sonic_pdev = { + .name = "jazzsonic", + .num_resources = ARRAY_SIZE(jazz_sonic_rsrc), + .resource = jazz_sonic_rsrc +}; + +static struct resource jazz_cmos_rsrc[] = { + { + .start = 0x70, + .end = 0x71, + .flags = IORESOURCE_IO + }, + { + .start = 8, + .end = 8, + .flags = IORESOURCE_IRQ + } +}; + +static struct platform_device jazz_cmos_pdev = { + .name = "rtc_cmos", + .num_resources = ARRAY_SIZE(jazz_cmos_rsrc), + .resource = jazz_cmos_rsrc +}; + +static struct platform_device pcspeaker_pdev = { + .name = "pcspkr", + .id = -1, +}; + +static int __init jazz_setup_devinit(void) +{ + platform_device_register(&jazz_serial8250_device); + platform_device_register(&jazz_esp_pdev); + platform_device_register(&jazz_sonic_pdev); + platform_device_register(&jazz_cmos_pdev); + platform_device_register(&pcspeaker_pdev); + + return 0; } + +device_initcall(jazz_setup_devinit); |