diff options
| -rw-r--r-- | arch/mips/Kconfig | 1 | ||||
| -rw-r--r-- | arch/mips/jazz/Makefile | 2 | ||||
| -rw-r--r-- | arch/mips/jazz/irq.c | 94 | ||||
| -rw-r--r-- | arch/mips/jazz/jazz-platform.c | 60 | ||||
| -rw-r--r-- | arch/mips/jazz/jazzdma.c | 47 | ||||
| -rw-r--r-- | arch/mips/jazz/setup.c | 115 | ||||
| -rw-r--r-- | include/asm-mips/jazz.h | 40 | ||||
| -rw-r--r-- | include/asm-mips/jazzdma.h | 1 | ||||
| -rw-r--r-- | include/asm-mips/mach-jazz/mc146818rtc.h | 10 |
9 files changed, 182 insertions, 188 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index bb3fb4018602..a8bdc084e10c 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -93,6 +93,7 @@ config MACH_JAZZ select ARC32 select ARCH_MAY_HAVE_PC_FDC select GENERIC_ISA_DMA + select IRQ_CPU select I8259 select ISA select PCSPEAKER diff --git a/arch/mips/jazz/Makefile b/arch/mips/jazz/Makefile index 575a9442bc82..5aee0c266d18 100644 --- a/arch/mips/jazz/Makefile +++ b/arch/mips/jazz/Makefile @@ -2,6 +2,6 @@ # Makefile for the Jazz family specific parts of the kernel # -obj-y := irq.o jazzdma.o jazz-platform.o reset.o setup.o +obj-y := irq.o jazzdma.o reset.o setup.o EXTRA_CFLAGS += -Werror diff --git a/arch/mips/jazz/irq.c b/arch/mips/jazz/irq.c index 015cf4bb51dd..56235412cbb7 100644 --- a/arch/mips/jazz/irq.c +++ b/arch/mips/jazz/irq.c @@ -11,15 +11,17 @@ #include <linux/kernel.h> #include <linux/spinlock.h> +#include <asm/irq_cpu.h> #include <asm/i8259.h> #include <asm/io.h> #include <asm/jazz.h> +#include <asm/pgtable.h> static DEFINE_SPINLOCK(r4030_lock); static void enable_r4030_irq(unsigned int irq) { - unsigned int mask = 1 << (irq - JAZZ_PARALLEL_IRQ); + unsigned int mask = 1 << (irq - JAZZ_IRQ_START); unsigned long flags; spin_lock_irqsave(&r4030_lock, flags); @@ -30,7 +32,7 @@ static void enable_r4030_irq(unsigned int irq) void disable_r4030_irq(unsigned int irq) { - unsigned int mask = ~(1 << (irq - JAZZ_PARALLEL_IRQ)); + unsigned int mask = ~(1 << (irq - JAZZ_IRQ_START)); unsigned long flags; spin_lock_irqsave(&r4030_lock, flags); @@ -51,7 +53,7 @@ void __init init_r4030_ints(void) { int i; - for (i = JAZZ_PARALLEL_IRQ; i <= JAZZ_TIMER_IRQ; i++) + for (i = JAZZ_IRQ_START; i <= JAZZ_IRQ_END; i++) set_irq_chip_and_handler(i, &r4030_irq_type, handle_level_irq); r4030_write_reg16(JAZZ_IO_IRQ_ENABLE, 0); @@ -66,82 +68,40 @@ void __init init_r4030_ints(void) */ void __init arch_init_irq(void) { + /* + * 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); -} - -static void loc_call(unsigned int irq, unsigned int mask) -{ - r4030_write_reg16(JAZZ_IO_IRQ_ENABLE, - r4030_read_reg16(JAZZ_IO_IRQ_ENABLE) & mask); - do_IRQ(irq); - r4030_write_reg16(JAZZ_IO_IRQ_ENABLE, - r4030_read_reg16(JAZZ_IO_IRQ_ENABLE) | mask); -} - -static void ll_local_dev(void) -{ - switch (r4030_read_reg32(JAZZ_IO_IRQ_SOURCE)) { - case 0: - panic("Unimplemented loc_no_irq handler"); - break; - case 4: - loc_call(JAZZ_PARALLEL_IRQ, JAZZ_IE_PARALLEL); - break; - case 8: - loc_call(JAZZ_PARALLEL_IRQ, JAZZ_IE_FLOPPY); - break; - case 12: - panic("Unimplemented loc_sound handler"); - break; - case 16: - panic("Unimplemented loc_video handler"); - break; - case 20: - loc_call(JAZZ_ETHERNET_IRQ, JAZZ_IE_ETHERNET); - break; - case 24: - loc_call(JAZZ_SCSI_IRQ, JAZZ_IE_SCSI); - break; - case 28: - loc_call(JAZZ_KEYBOARD_IRQ, JAZZ_IE_KEYBOARD); - break; - case 32: - loc_call(JAZZ_MOUSE_IRQ, JAZZ_IE_MOUSE); - break; - case 36: - loc_call(JAZZ_SERIAL1_IRQ, JAZZ_IE_SERIAL1); - break; - case 40: - loc_call(JAZZ_SERIAL2_IRQ, JAZZ_IE_SERIAL2); - break; - } + 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_IRQ5) - write_c0_compare(0); - else if (pending & IE_IRQ4) { + if (pending & IE_IRQ4) { r4030_read_reg32(JAZZ_TIMER_REGISTER); do_IRQ(JAZZ_TIMER_IRQ); - } else if (pending & IE_IRQ3) - panic("Unimplemented ISA NMI handler"); - else if (pending & IE_IRQ2) + } else if (pending & IE_IRQ2) do_IRQ(r4030_read_reg32(JAZZ_EISA_IRQ_ACK)); else if (pending & IE_IRQ1) { - ll_local_dev(); - } else if (unlikely(pending & IE_IRQ0)) - panic("Unimplemented local_dma handler"); - else if (pending & IE_SW1) { - clear_c0_cause(IE_SW1); - panic("Unimplemented sw1 handler"); - } else if (pending & IE_SW0) { - clear_c0_cause(IE_SW0); - panic("Unimplemented sw0 handler"); + 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"); } } diff --git a/arch/mips/jazz/jazz-platform.c b/arch/mips/jazz/jazz-platform.c deleted file mode 100644 index fd736703eef2..000000000000 --- a/arch/mips/jazz/jazz-platform.c +++ /dev/null @@ -1,60 +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) 2007 Ralf Baechle (ralf@linux-mips.org) - */ -#include <linux/init.h> -#include <linux/module.h> -#include <linux/serial_8250.h> - -#include <asm/jazz.h> - -/* - * Confusion ... It seems the original Microsoft Jazz machine used to have a - * 4.096MHz clock for its UART while the MIPS Magnum and Millenium systems - * had 8MHz. The Olivetti M700-10 and the Acer PICA have 1.8432MHz like PCs. - */ -#ifdef CONFIG_OLIVETTI_M700 -#define JAZZ_BASE_BAUD 1843200 -#else -#define JAZZ_BASE_BAUD 8000000 /* 3072000 */ -#endif - -#define JAZZ_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP) - -#define JAZZ_PORT(base, int) \ -{ \ - .mapbase = base, \ - .irq = int, \ - .uartclk = JAZZ_BASE_BAUD, \ - .iotype = UPIO_MEM, \ - .flags = JAZZ_UART_FLAGS, \ - .regshift = 0, \ -} - -static struct plat_serial8250_port uart8250_data[] = { - JAZZ_PORT(JAZZ_SERIAL1_BASE, JAZZ_SERIAL1_IRQ), - JAZZ_PORT(JAZZ_SERIAL2_BASE, JAZZ_SERIAL2_IRQ), - { }, -}; - -static struct platform_device uart8250_device = { - .name = "serial8250", - .id = PLAT8250_DEV_PLATFORM, - .dev = { - .platform_data = uart8250_data, - }, -}; - -static int __init uart8250_init(void) -{ - return platform_device_register(&uart8250_device); -} - -module_init(uart8250_init); - -MODULE_AUTHOR("Ralf Baechle <ralf@linux-mips.org>"); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("8250 UART probe driver for the Jazz family"); diff --git a/arch/mips/jazz/jazzdma.c b/arch/mips/jazz/jazzdma.c index e8e0ffb9354d..c672c08d49e5 100644 --- a/arch/mips/jazz/jazzdma.c +++ b/arch/mips/jazz/jazzdma.c @@ -27,7 +27,7 @@ */ #define CONF_DEBUG_VDMA 0 -static unsigned long vdma_pagetable_start; +static VDMA_PGTBL_ENTRY *pgtbl; static DEFINE_SPINLOCK(vdma_lock); @@ -46,7 +46,6 @@ 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; @@ -60,31 +59,31 @@ 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 * aligned and should be uncached to avoid cache flushing after every * update. */ - vdma_pagetable_start = - (unsigned long) alloc_bootmem_low_pages(VDMA_PGTBL_SIZE); - if (!vdma_pagetable_start) + pgtbl = (VDMA_PGTBL_ENTRY *)__get_free_pages(GFP_KERNEL | GFP_DMA, + get_order(VDMA_PGTBL_SIZE)); + if (!pgtbl) BUG(); - dma_cache_wback_inv(vdma_pagetable_start, VDMA_PGTBL_SIZE); - vdma_pagetable_start = KSEG1ADDR(vdma_pagetable_start); + 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; } /* @@ -92,7 +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; @@ -114,10 +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); @@ -125,12 +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; } /* @@ -140,8 +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; } @@ -160,10 +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"); } @@ -181,7 +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; @@ -213,8 +211,6 @@ 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; if (laddr > 0xffffff) { @@ -289,8 +285,6 @@ 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); @@ -312,9 +306,6 @@ 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)); } @@ -564,3 +555,5 @@ int vdma_get_enable(int channel) return enable; } + +arch_initcall(vdma_init); diff --git a/arch/mips/jazz/setup.c b/arch/mips/jazz/setup.c index 798279e06691..5c6271ab927f 100644 --- a/arch/mips/jazz/setup.c +++ b/arch/mips/jazz/setup.c @@ -7,6 +7,7 @@ * * Copyright (C) 1996, 1997, 1998, 2001 by Ralf Baechle * Copyright (C) 2001 MIPS Technologies, Inc. + * Copyright (C) 2007 by Thomas Bogendoerfer */ #include <linux/eisa.h> #include <linux/hdreg.h> @@ -20,6 +21,8 @@ #include <linux/ide.h> #include <linux/pm.h> #include <linux/screen_info.h> +#include <linux/platform_device.h> +#include <linux/serial_8250.h> #include <asm/bootinfo.h> #include <asm/irq.h> @@ -30,6 +33,7 @@ #include <asm/pgtable.h> #include <asm/time.h> #include <asm/traps.h> +#include <asm/mc146818-time.h> extern asmlinkage void jazz_handle_int(void); @@ -72,10 +76,8 @@ void __init plat_mem_setup(void) /* 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); @@ -94,6 +96,7 @@ void __init plat_mem_setup(void) _machine_restart = jazz_machine_restart; +#ifdef CONFIG_VT screen_info = (struct screen_info) { 0, 0, /* orig-x, orig-y */ 0, /* unused */ @@ -105,6 +108,112 @@ void __init plat_mem_setup(void) 0, /* orig_video_isVGA */ 16 /* orig_video_points */ }; +#endif - vdma_init(); + 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, + }, +}; + +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 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); + return 0; +} + +device_initcall(jazz_setup_devinit); diff --git a/include/asm-mips/jazz.h b/include/asm-mips/jazz.h index 81cbf004fd13..83f449dec95e 100644 --- a/include/asm-mips/jazz.h +++ b/include/asm-mips/jazz.h @@ -185,37 +185,25 @@ typedef struct { #define JAZZ_IO_IRQ_ENABLE 0xe0010002 /* - * JAZZ interrupt enable bits - */ -#define JAZZ_IE_PARALLEL (1 << 0) -#define JAZZ_IE_FLOPPY (1 << 1) -#define JAZZ_IE_SOUND (1 << 2) -#define JAZZ_IE_VIDEO (1 << 3) -#define JAZZ_IE_ETHERNET (1 << 4) -#define JAZZ_IE_SCSI (1 << 5) -#define JAZZ_IE_KEYBOARD (1 << 6) -#define JAZZ_IE_MOUSE (1 << 7) -#define JAZZ_IE_SERIAL1 (1 << 8) -#define JAZZ_IE_SERIAL2 (1 << 9) - -/* * JAZZ Interrupt Level definitions * * This is somewhat broken. For reasons which nobody can remember anymore * we remap the Jazz interrupts to the usual ISA style interrupt numbers. */ -#define JAZZ_PARALLEL_IRQ 16 -#define JAZZ_FLOPPY_IRQ 17 -#define JAZZ_SOUND_IRQ 18 -#define JAZZ_VIDEO_IRQ 19 -#define JAZZ_ETHERNET_IRQ 20 -#define JAZZ_SCSI_IRQ 21 -#define JAZZ_KEYBOARD_IRQ 22 -#define JAZZ_MOUSE_IRQ 23 -#define JAZZ_SERIAL1_IRQ 24 -#define JAZZ_SERIAL2_IRQ 25 - -#define JAZZ_TIMER_IRQ 31 +#define JAZZ_IRQ_START 24 +#define JAZZ_IRQ_END (24 + 9) +#define JAZZ_PARALLEL_IRQ (JAZZ_IRQ_START + 0) +#define JAZZ_FLOPPY_IRQ (JAZZ_IRQ_START + 1) +#define JAZZ_SOUND_IRQ (JAZZ_IRQ_START + 2) +#define JAZZ_VIDEO_IRQ (JAZZ_IRQ_START + 3) +#define JAZZ_ETHERNET_IRQ (JAZZ_IRQ_START + 4) +#define JAZZ_SCSI_IRQ (JAZZ_IRQ_START + 5) +#define JAZZ_KEYBOARD_IRQ (JAZZ_IRQ_START + 6) +#define JAZZ_MOUSE_IRQ (JAZZ_IRQ_START + 7) +#define JAZZ_SERIAL1_IRQ (JAZZ_IRQ_START + 8) +#define JAZZ_SERIAL2_IRQ (JAZZ_IRQ_START + 9) + +#define JAZZ_TIMER_IRQ (MIPS_CPU_IRQ_BASE+6) /* diff --git a/include/asm-mips/jazzdma.h b/include/asm-mips/jazzdma.h index 0a205b77e505..8bb37bba68f0 100644 --- a/include/asm-mips/jazzdma.h +++ b/include/asm-mips/jazzdma.h @@ -7,7 +7,6 @@ /* * Prototypes and macros */ -extern void vdma_init(void); extern unsigned long vdma_alloc(unsigned long paddr, unsigned long size); extern int vdma_free(unsigned long laddr); extern int vdma_remap(unsigned long laddr, unsigned long paddr, diff --git a/include/asm-mips/mach-jazz/mc146818rtc.h b/include/asm-mips/mach-jazz/mc146818rtc.h index f44fdba1998b..987f727afe25 100644 --- a/include/asm-mips/mach-jazz/mc146818rtc.h +++ b/include/asm-mips/mach-jazz/mc146818rtc.h @@ -4,12 +4,15 @@ * for more details. * * Copyright (C) 1998, 2001, 03 by Ralf Baechle + * Copyright (C) 2007 Thomas Bogendoerfer * * RTC routines for Jazz style attached Dallas chip. */ #ifndef __ASM_MACH_JAZZ_MC146818RTC_H #define __ASM_MACH_JAZZ_MC146818RTC_H +#include <linux/delay.h> + #include <asm/io.h> #include <asm/jazz.h> @@ -19,16 +22,17 @@ static inline unsigned char CMOS_READ(unsigned long addr) { outb_p(addr, RTC_PORT(0)); - - return *(char *)JAZZ_RTC_BASE; + return *(volatile char *)JAZZ_RTC_BASE; } static inline void CMOS_WRITE(unsigned char data, unsigned long addr) { outb_p(addr, RTC_PORT(0)); - *(char *)JAZZ_RTC_BASE = data; + *(volatile char *)JAZZ_RTC_BASE = data; } #define RTC_ALWAYS_BCD 0 +#define mc146818_decode_year(year) ((year) + 1980) + #endif /* __ASM_MACH_JAZZ_MC146818RTC_H */ |