diff options
Diffstat (limited to 'arch/m68k/bvme6000/config.c')
| -rw-r--r-- | arch/m68k/bvme6000/config.c | 79 |
1 files changed, 25 insertions, 54 deletions
diff --git a/arch/m68k/bvme6000/config.c b/arch/m68k/bvme6000/config.c index 3ffc84f9c29..478623dbb20 100644 --- a/arch/m68k/bvme6000/config.c +++ b/arch/m68k/bvme6000/config.c @@ -25,9 +25,11 @@ #include <linux/genhd.h> #include <linux/rtc.h> #include <linux/interrupt.h> +#include <linux/bcd.h> #include <asm/bootinfo.h> -#include <asm/system.h> +#include <asm/bootinfo-vme.h> +#include <asm/byteorder.h> #include <asm/pgtable.h> #include <asm/setup.h> #include <asm/irq.h> @@ -36,35 +38,23 @@ #include <asm/machdep.h> #include <asm/bvme6000hw.h> -extern irqreturn_t bvme6000_process_int (int level, struct pt_regs *regs); -extern void bvme6000_init_IRQ (void); -extern void bvme6000_free_irq (unsigned int, void *); -extern int show_bvme6000_interrupts(struct seq_file *, void *); -extern void bvme6000_enable_irq (unsigned int); -extern void bvme6000_disable_irq (unsigned int); static void bvme6000_get_model(char *model); -static int bvme6000_get_hardware_list(char *buffer); -extern int bvme6000_request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id); -extern void bvme6000_sched_init(irqreturn_t (*handler)(int, void *, struct pt_regs *)); -extern unsigned long bvme6000_gettimeoffset (void); +extern void bvme6000_sched_init(irq_handler_t handler); +extern u32 bvme6000_gettimeoffset(void); extern int bvme6000_hwclk (int, struct rtc_time *); extern int bvme6000_set_clock_mmss (unsigned long); extern void bvme6000_reset (void); -extern void bvme6000_waitbut(void); void bvme6000_set_vectors (void); -static unsigned char bcd2bin (unsigned char b); -static unsigned char bin2bcd (unsigned char b); +/* Save tick handler routine pointer, will point to xtime_update() in + * kernel/timer/timekeeping.c, called via bvme6000_process_int() */ -/* Save tick handler routine pointer, will point to do_timer() in - * kernel/sched.c, called via bvme6000_process_int() */ +static irq_handler_t tick_handler; -static irqreturn_t (*tick_handler)(int, void *, struct pt_regs *); - -int bvme6000_parse_bootinfo(const struct bi_record *bi) +int __init bvme6000_parse_bootinfo(const struct bi_record *bi) { - if (bi->tag == BI_VME_TYPE) + if (be16_to_cpu(bi->tag) == BI_VME_TYPE) return 0; else return 1; @@ -91,16 +81,15 @@ static void bvme6000_get_model(char *model) sprintf(model, "BVME%d000", m68k_cputype == CPU_68060 ? 6 : 4); } - -/* No hardware options on BVME6000? */ - -static int bvme6000_get_hardware_list(char *buffer) +/* + * This function is called during kernel startup to initialize + * the bvme6000 IRQ handling routines. + */ +static void __init bvme6000_init_IRQ(void) { - *buffer = '\0'; - return 0; + m68k_setup_user_interrupt(VEC_USER, 192); } - void __init config_bvme6000(void) { volatile PitRegsPtr pit = (PitRegsPtr)BVME_PIT_BASE; @@ -123,18 +112,11 @@ void __init config_bvme6000(void) mach_max_dma_address = 0xffffffff; mach_sched_init = bvme6000_sched_init; mach_init_IRQ = bvme6000_init_IRQ; - mach_gettimeoffset = bvme6000_gettimeoffset; + arch_gettimeoffset = bvme6000_gettimeoffset; mach_hwclk = bvme6000_hwclk; mach_set_clock_mmss = bvme6000_set_clock_mmss; mach_reset = bvme6000_reset; - mach_free_irq = bvme6000_free_irq; - mach_process_int = bvme6000_process_int; - mach_get_irq_list = show_bvme6000_interrupts; - mach_request_irq = bvme6000_request_irq; - enable_irq = bvme6000_enable_irq; - disable_irq = bvme6000_disable_irq; mach_get_model = bvme6000_get_model; - mach_get_hardware_list = bvme6000_get_hardware_list; printk ("Board is %sconfigured as a System Controller\n", *config_reg_ptr & BVME_CONFIG_SW1 ? "" : "not "); @@ -142,7 +124,7 @@ void __init config_bvme6000(void) /* Now do the PIT configuration */ pit->pgcr = 0x00; /* Unidirectional 8 bit, no handshake for now */ - pit->psrr = 0x18; /* PIACK and PIRQ fucntions enabled */ + pit->psrr = 0x18; /* PIACK and PIRQ functions enabled */ pit->pacr = 0x00; /* Sub Mode 00, H2 i/p, no DMA */ pit->padr = 0x00; /* Just to be tidy! */ pit->paddr = 0x00; /* All inputs for now (safest) */ @@ -159,7 +141,7 @@ void __init config_bvme6000(void) } -irqreturn_t bvme6000_abort_int (int irq, void *dev_id, struct pt_regs *fp) +irqreturn_t bvme6000_abort_int (int irq, void *dev_id) { unsigned long *new = (unsigned long *)vectors; unsigned long *old = (unsigned long *)0xf8000000; @@ -176,14 +158,14 @@ irqreturn_t bvme6000_abort_int (int irq, void *dev_id, struct pt_regs *fp) } -static irqreturn_t bvme6000_timer_int (int irq, void *dev_id, struct pt_regs *fp) +static irqreturn_t bvme6000_timer_int (int irq, void *dev_id) { volatile RtcPtr_t rtc = (RtcPtr_t)BVME_RTC_BASE; unsigned char msr = rtc->msr & 0xc0; rtc->msr = msr | 0x20; /* Ack the interrupt */ - return tick_handler(irq, dev_id, fp); + return tick_handler(irq, dev_id); } /* @@ -195,7 +177,7 @@ static irqreturn_t bvme6000_timer_int (int irq, void *dev_id, struct pt_regs *fp * so divide by 8 to get the microsecond result. */ -void bvme6000_sched_init (irqreturn_t (*timer_routine)(int, void *, struct pt_regs *)) +void bvme6000_sched_init (irq_handler_t timer_routine) { volatile RtcPtr_t rtc = (RtcPtr_t)BVME_RTC_BASE; unsigned char msr = rtc->msr & 0xc0; @@ -236,13 +218,13 @@ void bvme6000_sched_init (irqreturn_t (*timer_routine)(int, void *, struct pt_re * results... */ -unsigned long bvme6000_gettimeoffset (void) +u32 bvme6000_gettimeoffset(void) { volatile RtcPtr_t rtc = (RtcPtr_t)BVME_RTC_BASE; volatile PitRegsPtr pit = (PitRegsPtr)BVME_PIT_BASE; unsigned char msr = rtc->msr & 0xc0; unsigned char t1int, t1op; - unsigned long v = 800000, ov; + u32 v = 800000, ov; rtc->msr = 0; /* Ensure timer registers accessible */ @@ -266,20 +248,9 @@ unsigned long bvme6000_gettimeoffset (void) v += 10000; /* Int pending, + 10ms */ rtc->msr = msr; - return v; + return v * 1000; } -static unsigned char bcd2bin (unsigned char b) -{ - return ((b>>4)*10 + (b&15)); -} - -static unsigned char bin2bcd (unsigned char b) -{ - return (((b/10)*16) + (b%10)); -} - - /* * Looks like op is non-zero for setting the clock, and zero for * reading the clock. |