diff options
Diffstat (limited to 'arch/m68k/mvme147')
| -rw-r--r-- | arch/m68k/mvme147/147ints.c | 145 | ||||
| -rw-r--r-- | arch/m68k/mvme147/Makefile | 2 | ||||
| -rw-r--r-- | arch/m68k/mvme147/config.c | 61 |
3 files changed, 25 insertions, 183 deletions
diff --git a/arch/m68k/mvme147/147ints.c b/arch/m68k/mvme147/147ints.c deleted file mode 100644 index 69a744ee35a..00000000000 --- a/arch/m68k/mvme147/147ints.c +++ /dev/null @@ -1,145 +0,0 @@ -/* - * arch/m68k/mvme147/147ints.c - * - * Copyright (C) 1997 Richard Hirst [richard@sleepie.demon.co.uk] - * - * based on amiints.c -- Amiga Linux interrupt handling code - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file README.legal in the main directory of this archive - * for more details. - * - */ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/seq_file.h> - -#include <asm/ptrace.h> -#include <asm/system.h> -#include <asm/irq.h> -#include <asm/traps.h> - -static irqreturn_t mvme147_defhand (int irq, void *dev_id, struct pt_regs *fp); - -/* - * This should ideally be 4 elements only, for speed. - */ - -static struct { - irqreturn_t (*handler)(int, void *, struct pt_regs *); - unsigned long flags; - void *dev_id; - const char *devname; - unsigned count; -} irq_tab[256]; - -/* - * void mvme147_init_IRQ (void) - * - * Parameters: None - * - * Returns: Nothing - * - * This function is called during kernel startup to initialize - * the mvme147 IRQ handling routines. - */ - -void mvme147_init_IRQ (void) -{ - int i; - - for (i = 0; i < 256; i++) { - irq_tab[i].handler = mvme147_defhand; - irq_tab[i].flags = IRQ_FLG_STD; - irq_tab[i].dev_id = NULL; - irq_tab[i].devname = NULL; - irq_tab[i].count = 0; - } -} - -int mvme147_request_irq(unsigned int irq, - irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long flags, const char *devname, void *dev_id) -{ - if (irq > 255) { - printk("%s: Incorrect IRQ %d from %s\n", __FUNCTION__, irq, devname); - return -ENXIO; - } - if (!(irq_tab[irq].flags & IRQ_FLG_STD)) { - if (irq_tab[irq].flags & IRQ_FLG_LOCK) { - printk("%s: IRQ %d from %s is not replaceable\n", - __FUNCTION__, irq, irq_tab[irq].devname); - return -EBUSY; - } - if (flags & IRQ_FLG_REPLACE) { - printk("%s: %s can't replace IRQ %d from %s\n", - __FUNCTION__, devname, irq, irq_tab[irq].devname); - return -EBUSY; - } - } - irq_tab[irq].handler = handler; - irq_tab[irq].flags = flags; - irq_tab[irq].dev_id = dev_id; - irq_tab[irq].devname = devname; - return 0; -} - -void mvme147_free_irq(unsigned int irq, void *dev_id) -{ - if (irq > 255) { - printk("%s: Incorrect IRQ %d\n", __FUNCTION__, irq); - return; - } - if (irq_tab[irq].dev_id != dev_id) - printk("%s: Removing probably wrong IRQ %d from %s\n", - __FUNCTION__, irq, irq_tab[irq].devname); - - irq_tab[irq].handler = mvme147_defhand; - irq_tab[irq].flags = IRQ_FLG_STD; - irq_tab[irq].dev_id = NULL; - irq_tab[irq].devname = NULL; -} - -irqreturn_t mvme147_process_int (unsigned long vec, struct pt_regs *fp) -{ - if (vec > 255) { - printk ("mvme147_process_int: Illegal vector %ld\n", vec); - return IRQ_NONE; - } else { - irq_tab[vec].count++; - irq_tab[vec].handler(vec, irq_tab[vec].dev_id, fp); - return IRQ_HANDLED; - } -} - -int show_mvme147_interrupts (struct seq_file *p, void *v) -{ - int i; - - for (i = 0; i < 256; i++) { - if (irq_tab[i].count) - seq_printf(p, "Vec 0x%02x: %8d %s\n", - i, irq_tab[i].count, - irq_tab[i].devname ? irq_tab[i].devname : "free"); - } - return 0; -} - - -static irqreturn_t mvme147_defhand (int irq, void *dev_id, struct pt_regs *fp) -{ - printk ("Unknown interrupt 0x%02x\n", irq); - return IRQ_NONE; -} - -void mvme147_enable_irq (unsigned int irq) -{ -} - - -void mvme147_disable_irq (unsigned int irq) -{ -} - diff --git a/arch/m68k/mvme147/Makefile b/arch/m68k/mvme147/Makefile index f0153ed3efa..a36d38dbfbb 100644 --- a/arch/m68k/mvme147/Makefile +++ b/arch/m68k/mvme147/Makefile @@ -2,4 +2,4 @@ # Makefile for Linux arch/m68k/mvme147 source directory # -obj-y := config.o 147ints.o +obj-y := config.o diff --git a/arch/m68k/mvme147/config.c b/arch/m68k/mvme147/config.c index 0fcf9720c2f..1bb3ce6634d 100644 --- a/arch/m68k/mvme147/config.c +++ b/arch/m68k/mvme147/config.c @@ -26,7 +26,8 @@ #include <linux/interrupt.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> @@ -36,34 +37,26 @@ #include <asm/mvme147hw.h> -extern irqreturn_t mvme147_process_int (int level, struct pt_regs *regs); -extern void mvme147_init_IRQ (void); -extern void mvme147_free_irq (unsigned int, void *); -extern int show_mvme147_interrupts (struct seq_file *, void *); -extern void mvme147_enable_irq (unsigned int); -extern void mvme147_disable_irq (unsigned int); static void mvme147_get_model(char *model); -static int mvme147_get_hardware_list(char *buffer); -extern int mvme147_request_irq (unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id); -extern void mvme147_sched_init(irqreturn_t (*handler)(int, void *, struct pt_regs *)); -extern unsigned long mvme147_gettimeoffset (void); +extern void mvme147_sched_init(irq_handler_t handler); +extern u32 mvme147_gettimeoffset(void); extern int mvme147_hwclk (int, struct rtc_time *); extern int mvme147_set_clock_mmss (unsigned long); extern void mvme147_reset (void); -extern void mvme147_waitbut(void); static int bcd2int (unsigned char b); -/* Save tick handler routine pointer, will point to do_timer() in - * kernel/sched.c, called via mvme147_process_int() */ +/* Save tick handler routine pointer, will point to xtime_update() in + * kernel/time/timekeeping.c, called via mvme147_process_int() */ -irqreturn_t (*tick_handler)(int, void *, struct pt_regs *); +irq_handler_t tick_handler; -int mvme147_parse_bootinfo(const struct bi_record *bi) +int __init mvme147_parse_bootinfo(const struct bi_record *bi) { - if (bi->tag == BI_VME_TYPE || bi->tag == BI_VME_BRDINFO) + uint16_t tag = be16_to_cpu(bi->tag); + if (tag == BI_VME_TYPE || tag == BI_VME_BRDINFO) return 0; else return 1; @@ -83,32 +76,26 @@ static void mvme147_get_model(char *model) sprintf(model, "Motorola MVME147"); } +/* + * This function is called during kernel startup to initialize + * the mvme147 IRQ handling routines. + */ -static int mvme147_get_hardware_list(char *buffer) +void __init mvme147_init_IRQ(void) { - *buffer = '\0'; - - return 0; + m68k_setup_user_interrupt(VEC_USER, 192); } - void __init config_mvme147(void) { mach_max_dma_address = 0x01000000; mach_sched_init = mvme147_sched_init; mach_init_IRQ = mvme147_init_IRQ; - mach_gettimeoffset = mvme147_gettimeoffset; + arch_gettimeoffset = mvme147_gettimeoffset; mach_hwclk = mvme147_hwclk; mach_set_clock_mmss = mvme147_set_clock_mmss; mach_reset = mvme147_reset; - mach_free_irq = mvme147_free_irq; - mach_process_int = mvme147_process_int; - mach_get_irq_list = show_mvme147_interrupts; - mach_request_irq = mvme147_request_irq; - enable_irq = mvme147_enable_irq; - disable_irq = mvme147_disable_irq; mach_get_model = mvme147_get_model; - mach_get_hardware_list = mvme147_get_hardware_list; /* Board type is only set by newer versions of vmelilo/tftplilo */ if (!vme_brdtype) @@ -118,19 +105,19 @@ void __init config_mvme147(void) /* Using pcc tick timer 1 */ -static irqreturn_t mvme147_timer_int (int irq, void *dev_id, struct pt_regs *fp) +static irqreturn_t mvme147_timer_int (int irq, void *dev_id) { m147_pcc->t1_int_cntrl = PCC_TIMER_INT_CLR; m147_pcc->t1_int_cntrl = PCC_INT_ENAB|PCC_LEVEL_TIMER1; - return tick_handler(irq, dev_id, fp); + return tick_handler(irq, dev_id); } -void mvme147_sched_init (irqreturn_t (*timer_routine)(int, void *, struct pt_regs *)) +void mvme147_sched_init (irq_handler_t timer_routine) { tick_handler = timer_routine; - request_irq (PCC_IRQ_TIMER1, mvme147_timer_int, - IRQ_FLG_REPLACE, "timer 1", NULL); + if (request_irq(PCC_IRQ_TIMER1, mvme147_timer_int, 0, "timer 1", NULL)) + pr_err("Couldn't register timer interrupt\n"); /* Init the clock with a value */ /* our clock goes off every 6.25us */ @@ -143,7 +130,7 @@ void mvme147_sched_init (irqreturn_t (*timer_routine)(int, void *, struct pt_reg /* This is always executed with interrupts disabled. */ /* XXX There are race hazards in this code XXX */ -unsigned long mvme147_gettimeoffset (void) +u32 mvme147_gettimeoffset(void) { volatile unsigned short *cp = (volatile unsigned short *)0xfffe1012; unsigned short n; @@ -153,7 +140,7 @@ unsigned long mvme147_gettimeoffset (void) n = *cp; n -= PCC_TIMER_PRELOAD; - return (unsigned long)n * 25 / 4; + return ((unsigned long)n * 25 / 4) * 1000; } static int bcd2int (unsigned char b) |