X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=arch%2Fx86%2Fmach-voyager%2Fvoyager_basic.c;h=46d6f8067690d9f37610718c9af1b924a3233e98;hb=b31a0fecd1dd01f1db406014a7c8a73983e04cc9;hp=9b77b39b71a6dde7a2f4e17aa39af680a13e27ff;hpb=e3d18658d4f28e4783e1bb1c41e9134c9e5db0a9;p=linux-2.6-omap-h63xx.git diff --git a/arch/x86/mach-voyager/voyager_basic.c b/arch/x86/mach-voyager/voyager_basic.c index 9b77b39b71a..46d6f806769 100644 --- a/arch/x86/mach-voyager/voyager_basic.c +++ b/arch/x86/mach-voyager/voyager_basic.c @@ -2,8 +2,6 @@ * * Author: J.E.J.Bottomley@HansenPartnership.com * - * linux/arch/i386/kernel/voyager.c - * * This file contains all the voyager specific routines for getting * initialisation of the architecture to function. For additional * features see: @@ -35,7 +33,7 @@ /* * Power off function, if any */ -void (*pm_power_off)(void); +void (*pm_power_off) (void); EXPORT_SYMBOL(pm_power_off); int voyager_level = 0; @@ -43,39 +41,38 @@ int voyager_level = 0; struct voyager_SUS *voyager_SUS = NULL; #ifdef CONFIG_SMP -static void -voyager_dump(int dummy1, struct tty_struct *dummy3) +static void voyager_dump(int dummy1, struct tty_struct *dummy3) { /* get here via a sysrq */ voyager_smp_dump(); } static struct sysrq_key_op sysrq_voyager_dump_op = { - .handler = voyager_dump, - .help_msg = "Voyager", - .action_msg = "Dump Voyager Status", + .handler = voyager_dump, + .help_msg = "Voyager", + .action_msg = "Dump Voyager Status", }; #endif -void -voyager_detect(struct voyager_bios_info *bios) +void voyager_detect(struct voyager_bios_info *bios) { - if(bios->len != 0xff) { - int class = (bios->class_1 << 8) - | (bios->class_2 & 0xff); + if (bios->len != 0xff) { + int class = (bios->class_1 << 8) + | (bios->class_2 & 0xff); printk("Voyager System detected.\n" " Class %x, Revision %d.%d\n", class, bios->major, bios->minor); - if(class == VOYAGER_LEVEL4) + if (class == VOYAGER_LEVEL4) voyager_level = 4; - else if(class < VOYAGER_LEVEL5_AND_ABOVE) + else if (class < VOYAGER_LEVEL5_AND_ABOVE) voyager_level = 3; else voyager_level = 5; printk(" Architecture Level %d\n", voyager_level); - if(voyager_level < 4) - printk("\n**WARNING**: Voyager HAL only supports Levels 4 and 5 Architectures at the moment\n\n"); + if (voyager_level < 4) + printk + ("\n**WARNING**: Voyager HAL only supports Levels 4 and 5 Architectures at the moment\n\n"); /* install the power off handler */ pm_power_off = voyager_power_off; #ifdef CONFIG_SMP @@ -86,15 +83,13 @@ voyager_detect(struct voyager_bios_info *bios) } } -void -voyager_system_interrupt(int cpl, void *dev_id) +void voyager_system_interrupt(int cpl, void *dev_id) { printk("Voyager: detected system interrupt\n"); } /* Routine to read information from the extended CMOS area */ -__u8 -voyager_extended_cmos_read(__u16 addr) +__u8 voyager_extended_cmos_read(__u16 addr) { outb(addr & 0xff, 0x74); outb((addr >> 8) & 0xff, 0x75); @@ -108,12 +103,11 @@ voyager_extended_cmos_read(__u16 addr) typedef struct ClickMap { struct Entry { - __u32 Address; - __u32 Length; + __u32 Address; + __u32 Length; } Entry[CLICK_ENTRIES]; } ClickMap_t; - /* This routine is pretty much an awful hack to read the bios clickmap by * mapping it into page 0. There are usually three regions in the map: * Base Memory @@ -122,8 +116,7 @@ typedef struct ClickMap { * * Returns are 0 for failure and 1 for success on extracting region. */ -int __init -voyager_memory_detect(int region, __u32 *start, __u32 *length) +int __init voyager_memory_detect(int region, __u32 * start, __u32 * length) { int i; int retval = 0; @@ -132,13 +125,14 @@ voyager_memory_detect(int region, __u32 *start, __u32 *length) unsigned long map_addr; unsigned long old; - if(region >= CLICK_ENTRIES) { + if (region >= CLICK_ENTRIES) { printk("Voyager: Illegal ClickMap region %d\n", region); return 0; } - for(i = 0; i < sizeof(cmos); i++) - cmos[i] = voyager_extended_cmos_read(VOYAGER_MEMORY_CLICKMAP + i); + for (i = 0; i < sizeof(cmos); i++) + cmos[i] = + voyager_extended_cmos_read(VOYAGER_MEMORY_CLICKMAP + i); map_addr = *(unsigned long *)cmos; @@ -147,10 +141,10 @@ voyager_memory_detect(int region, __u32 *start, __u32 *length) pg0[0] = ((map_addr & PAGE_MASK) | _PAGE_RW | _PAGE_PRESENT); local_flush_tlb(); /* now clear everything out but page 0 */ - map = (ClickMap_t *)(map_addr & (~PAGE_MASK)); + map = (ClickMap_t *) (map_addr & (~PAGE_MASK)); /* zero length is the end of the clickmap */ - if(map->Entry[region].Length != 0) { + if (map->Entry[region].Length != 0) { *length = map->Entry[region].Length * CLICK_SIZE; *start = map->Entry[region].Address; retval = 1; @@ -165,10 +159,9 @@ voyager_memory_detect(int region, __u32 *start, __u32 *length) /* voyager specific handling code for timer interrupts. Used to hand * off the timer tick to the SMP code, since the VIC doesn't have an * internal timer (The QIC does, but that's another story). */ -void -voyager_timer_interrupt(void) +void voyager_timer_interrupt(void) { - if((jiffies & 0x3ff) == 0) { + if ((jiffies & 0x3ff) == 0) { /* There seems to be something flaky in either * hardware or software that is resetting the timer 0 @@ -186,18 +179,20 @@ voyager_timer_interrupt(void) __u16 val; spin_lock(&i8253_lock); - + outb_p(0x00, 0x43); val = inb_p(0x40); val |= inb(0x40) << 8; spin_unlock(&i8253_lock); - if(val > LATCH) { - printk("\nVOYAGER: countdown timer value too high (%d), resetting\n\n", val); + if (val > LATCH) { + printk + ("\nVOYAGER: countdown timer value too high (%d), resetting\n\n", + val); spin_lock(&i8253_lock); - outb(0x34,0x43); - outb_p(LATCH & 0xff , 0x40); /* LSB */ - outb(LATCH >> 8 , 0x40); /* MSB */ + outb(0x34, 0x43); + outb_p(LATCH & 0xff, 0x40); /* LSB */ + outb(LATCH >> 8, 0x40); /* MSB */ spin_unlock(&i8253_lock); } } @@ -206,14 +201,13 @@ voyager_timer_interrupt(void) #endif } -void -voyager_power_off(void) +void voyager_power_off(void) { printk("VOYAGER Power Off\n"); - if(voyager_level == 5) { + if (voyager_level == 5) { voyager_cat_power_off(); - } else if(voyager_level == 4) { + } else if (voyager_level == 4) { /* This doesn't apparently work on most L4 machines, * but the specs say to do this to get automatic power * off. Unfortunately, if it doesn't power off the @@ -222,10 +216,8 @@ voyager_power_off(void) #if 0 int port; - /* enable the voyager Configuration Space */ - outb((inb(VOYAGER_MC_SETUP) & 0xf0) | 0x8, - VOYAGER_MC_SETUP); + outb((inb(VOYAGER_MC_SETUP) & 0xf0) | 0x8, VOYAGER_MC_SETUP); /* the port for the power off flag is an offset from the floating base */ port = (inb(VOYAGER_SSPB_RELOCATION_PORT) << 8) + 0x21; @@ -235,62 +227,57 @@ voyager_power_off(void) } /* and wait for it to happen */ local_irq_disable(); - for(;;) + for (;;) halt(); } /* copied from process.c */ -static inline void -kb_wait(void) +static inline void kb_wait(void) { int i; - for (i=0; i<0x10000; i++) + for (i = 0; i < 0x10000; i++) if ((inb_p(0x64) & 0x02) == 0) break; } -void -machine_shutdown(void) +void machine_shutdown(void) { /* Architecture specific shutdown needed before a kexec */ } -void -machine_restart(char *cmd) +void machine_restart(char *cmd) { printk("Voyager Warm Restart\n"); kb_wait(); - if(voyager_level == 5) { + if (voyager_level == 5) { /* write magic values to the RTC to inform system that * shutdown is beginning */ outb(0x8f, 0x70); - outb(0x5 , 0x71); - + outb(0x5, 0x71); + udelay(50); - outb(0xfe,0x64); /* pull reset low */ - } else if(voyager_level == 4) { - __u16 catbase = inb(VOYAGER_SSPB_RELOCATION_PORT)<<8; + outb(0xfe, 0x64); /* pull reset low */ + } else if (voyager_level == 4) { + __u16 catbase = inb(VOYAGER_SSPB_RELOCATION_PORT) << 8; __u8 basebd = inb(VOYAGER_MC_SETUP); - + outb(basebd | 0x08, VOYAGER_MC_SETUP); outb(0x02, catbase + 0x21); } local_irq_disable(); - for(;;) + for (;;) halt(); } -void -machine_emergency_restart(void) +void machine_emergency_restart(void) { /*for now, just hook this to a warm restart */ machine_restart(NULL); } -void -mca_nmi_hook(void) +void mca_nmi_hook(void) { __u8 dumpval __maybe_unused = inb(0xf823); __u8 swnmi __maybe_unused = inb(0xf813); @@ -301,8 +288,8 @@ mca_nmi_hook(void) /* clear swnmi */ outb(0xff, 0xf813); /* tell SUS to ignore dump */ - if(voyager_level == 5 && voyager_SUS != NULL) { - if(voyager_SUS->SUS_mbox == VOYAGER_DUMP_BUTTON_NMI) { + if (voyager_level == 5 && voyager_SUS != NULL) { + if (voyager_SUS->SUS_mbox == VOYAGER_DUMP_BUTTON_NMI) { voyager_SUS->kernel_mbox = VOYAGER_NO_COMMAND; voyager_SUS->kernel_flags |= VOYAGER_OS_IN_PROGRESS; udelay(1000); @@ -310,15 +297,14 @@ mca_nmi_hook(void) voyager_SUS->kernel_flags &= ~VOYAGER_OS_IN_PROGRESS; } } - printk(KERN_ERR "VOYAGER: Dump switch pressed, printing CPU%d tracebacks\n", smp_processor_id()); + printk(KERN_ERR + "VOYAGER: Dump switch pressed, printing CPU%d tracebacks\n", + smp_processor_id()); show_stack(NULL, NULL); show_state(); } - - -void -machine_halt(void) +void machine_halt(void) { /* treat a halt like a power off */ machine_power_off();