/* * arch/m68k/mvme16x/config.c * * Copyright (C) 1995 Richard Hirst [richard@sleepie.demon.co.uk] * * Based on: * * linux/amiga/config.c * * Copyright (C) 1993 Hamish Macdonald * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include extern t_bdid mvme_bdid; static MK48T08ptr_t volatile rtc = (MK48T08ptr_t)MVME_RTC_BASE; extern void mvme16x_process_int (int level, struct pt_regs *regs); extern void mvme16x_init_IRQ (void); extern void mvme16x_free_irq (unsigned int, void *); extern int mvme16x_get_irq_list (char *); extern void mvme16x_enable_irq (unsigned int); extern void mvme16x_disable_irq (unsigned int); static void mvme16x_get_model(char *model); static int mvme16x_get_hardware_list(char *buffer); extern int mvme16x_request_irq(unsigned int irq, void (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id); extern void mvme16x_sched_init(void (*handler)(int, void *, struct pt_regs *)); extern int mvme16x_keyb_init(void); extern int mvme16x_kbdrate (struct kbd_repeat *); extern unsigned long mvme16x_gettimeoffset (void); extern void mvme16x_gettod (int *year, int *mon, int *day, int *hour, int *min, int *sec); extern int mvme16x_hwclk (int, struct rtc_time *); extern int mvme16x_set_clock_mmss (unsigned long); extern void mvme16x_check_partition (struct gendisk *hd, unsigned int dev); extern void mvme16x_mksound( unsigned int count, unsigned int ticks ); extern void mvme16x_reset (void); extern void mvme16x_waitbut(void); int bcd2int (unsigned char b); /* Save tick handler routine pointer, will point to do_timer() in * kernel/sched.c, called via mvme16x_process_int() */ static void (*tick_handler)(int, void *, struct pt_regs *); unsigned short mvme16x_config; int mvme16x_parse_bootinfo(const struct bi_record *bi) { if (bi->tag == BI_VME_TYPE || bi->tag == BI_VME_BRDINFO) return 0; else return 1; } int mvme16x_kbdrate (struct kbd_repeat *k) { return 0; } void mvme16x_mksound( unsigned int count, unsigned int ticks ) { } void mvme16x_reset() { printk ("\r\n\nCalled mvme16x_reset\r\n" "\r\r\r\r\r\r\r\r\r\r\r\r\r\r\r\r\r\r"); /* The string of returns is to delay the reset until the whole * message is output. Assert reset bit in GCSR */ *(volatile char *)0xfff40107 = 0x80; } static void mvme16x_get_model(char *model) { p_bdid p = &mvme_bdid; char suf[4]; suf[1] = p->brdsuffix[0]; suf[2] = p->brdsuffix[1]; suf[3] = '\0'; suf[0] = suf[1] ? '-' : '\0'; sprintf(model, "Motorola MVME%x%s", p->brdno, suf); } static int mvme16x_get_hardware_list(char *buffer) { p_bdid p = &mvme_bdid; int len = 0; if (p->brdno == 0x0162 || p->brdno == 0x0172) { unsigned char rev = *(unsigned char *)MVME162_VERSION_REG; len += sprintf (buffer+len, "VMEchip2 %spresent\n", rev & MVME16x_CONFIG_NO_VMECHIP2 ? "NOT " : ""); len += sprintf (buffer+len, "SCSI interface %spresent\n", rev & MVME16x_CONFIG_NO_SCSICHIP ? "NOT " : ""); len += sprintf (buffer+len, "Ethernet i/f %spresent\n", rev & MVME16x_CONFIG_NO_ETHERNET ? "NOT " : ""); } else *buffer = '\0'; return (len); } #define pcc2chip ((volatile u_char *)0xfff42000) #define PccSCCMICR 0x1d #define PccSCCTICR 0x1e #define PccSCCRICR 0x1f void __init config_mvme16x(void) { p_bdid p = &mvme_bdid; char id[40]; mach_max_dma_address = 0xffffffff; mach_sched_init = mvme16x_sched_init; #ifdef CONFIG_VT mach_keyb_init = mvme16x_keyb_init; mach_kbdrate = mvme16x_kbdrate; /* kd_mksound = mvme16x_mksound; */ #endif mach_init_IRQ = mvme16x_init_IRQ; mach_gettimeoffset = mvme16x_gettimeoffset; mach_gettod = mvme16x_gettod; mach_hwclk = mvme16x_hwclk; mach_set_clock_mmss = mvme16x_set_clock_mmss; mach_reset = mvme16x_reset; mach_free_irq = mvme16x_free_irq; mach_process_int = mvme16x_process_int; mach_get_irq_list = mvme16x_get_irq_list; mach_request_irq = mvme16x_request_irq; enable_irq = mvme16x_enable_irq; disable_irq = mvme16x_disable_irq; mach_get_model = mvme16x_get_model; mach_get_hardware_list = mvme16x_get_hardware_list; /* Report board revision */ if (strncmp("BDID", p->bdid, 4)) { printk ("\n\nBug call .BRD_ID returned garbage - giving up\n\n"); while (1) ; } /* Board type is only set by newer versions of vmelilo/tftplilo */ if (vme_brdtype == 0) vme_brdtype = p->brdno; mvme16x_get_model(id); printk ("\nBRD_ID: %s BUG %x.%x %02x/%02x/%02x\n", id, p->rev>>4, p->rev&0xf, p->yr, p->mth, p->day); if (p->brdno == 0x0162 || p->brdno == 0x172) { unsigned char rev = *(unsigned char *)MVME162_VERSION_REG; mvme16x_config = rev | MVME16x_CONFIG_GOT_SCCA; printk ("MVME%x Hardware status:\n", p->brdno); printk (" CPU Type 68%s040\n", rev & MVME16x_CONFIG_GOT_FPU ? "" : "LC"); printk (" CPU clock %dMHz\n", rev & MVME16x_CONFIG_SPEED_32 ? 32 : 25); printk (" VMEchip2 %spresent\n", rev & MVME16x_CONFIG_NO_VMECHIP2 ? "NOT " : ""); printk (" SCSI interface %spresent\n", rev & MVME16x_CONFIG_NO_SCSICHIP ? "NOT " : ""); printk (" Ethernet interface %spresent\n", rev & MVME16x_CONFIG_NO_ETHERNET ? "NOT " : ""); } else { mvme16x_config = MVME16x_CONFIG_GOT_LP | MVME16x_CONFIG_GOT_CD2401; /* Dont allow any interrupts from the CD2401 until the interrupt */ /* handlers are installed */ pcc2chip[PccSCCMICR] = 0x10; pcc2chip[PccSCCTICR] = 0x10; pcc2chip[PccSCCRICR] = 0x10; } } static void mvme16x_abort_int (int irq, void *dev_id, struct pt_regs *fp) { p_bdid p = &mvme_bdid; unsigned long *new = (unsigned long *)vectors; unsigned long *old = (unsigned long *)0xffe00000; volatile unsigned char uc, *ucp; if (p->brdno == 0x0162 || p->brdno == 0x172) { ucp = (volatile unsigned char *)0xfff42043; uc = *ucp | 8; *ucp = uc; } else { *(volatile unsigned long *)0xfff40074 = 0x40000000; } *(new+4) = *(old+4); /* Illegal instruction */ *(new+9) = *(old+9); /* Trace */ *(new+47) = *(old+47); /* Trap #15 */ if (p->brdno == 0x0162 || p->brdno == 0x172) *(new+0x5e) = *(old+0x5e); /* ABORT switch */ else *(new+0x6e) = *(old+0x6e); /* ABORT switch */ } static void mvme16x_timer_int (int irq, void *dev_id, struct pt_regs *fp) { *(volatile unsigned char *)0xfff4201b |= 8; tick_handler(irq, dev_id, fp); } void mvme16x_sched_init (void (*timer_routine)(int, void *, struct pt_regs *)) { p_bdid p = &mvme_bdid; int irq; tick_handler = timer_routine; /* Using PCCchip2 or MC2 chip tick timer 1 */ *(volatile unsigned long *)0xfff42008 = 0; *(volatile unsigned long *)0xfff42004 = 10000; /* 10ms */ *(volatile unsigned char *)0xfff42017 |= 3; *(volatile unsigned char *)0xfff4201b = 0x16; if (request_irq(MVME16x_IRQ_TIMER, mvme16x_timer_int, 0, "timer", mvme16x_timer_int)) panic ("Couldn't register timer int"); if (p->brdno == 0x0162 || p->brdno == 0x172) irq = MVME162_IRQ_ABORT; else irq = MVME167_IRQ_ABORT; if (request_irq(irq, mvme16x_abort_int, 0, "abort", mvme16x_abort_int)) panic ("Couldn't register abort int"); } /* This is always executed with interrupts disabled. */ unsigned long mvme16x_gettimeoffset (void) { return (*(volatile unsigned long *)0xfff42008); } extern void mvme16x_gettod (int *year, int *mon, int *day, int *hour, int *min, int *sec) { rtc->ctrl = RTC_READ; *year = bcd2int (rtc->bcd_year); *mon = bcd2int (rtc->bcd_mth); *day = bcd2int (rtc->bcd_dom); *hour = bcd2int (rtc->bcd_hr); *min = bcd2int (rtc->bcd_min); *sec = bcd2int (rtc->bcd_sec); rtc->ctrl = 0; } int bcd2int (unsigned char b) { return ((b>>4)*10 + (b&15)); } int mvme16x_hwclk(int op, struct rtc_time *t) { return 0; } int mvme16x_set_clock_mmss (unsigned long nowtime) { return 0; } int mvme16x_keyb_init (void) { return 0; }