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Diffstat (limited to 'arch/m68k/amiga/config.c')
| -rw-r--r-- | arch/m68k/amiga/config.c | 1007 |
1 files changed, 1007 insertions, 0 deletions
diff --git a/arch/m68k/amiga/config.c b/arch/m68k/amiga/config.c new file mode 100644 index 00000000000..4775e18a78f --- /dev/null +++ b/arch/m68k/amiga/config.c @@ -0,0 +1,1007 @@ +/* + * linux/arch/m68k/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 COPYING in the main directory of this archive + * for more details. + */ + +/* + * Miscellaneous Amiga stuff + */ + +#include <linux/config.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/tty.h> +#include <linux/console.h> +#include <linux/rtc.h> +#include <linux/init.h> +#include <linux/vt_kern.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#ifdef CONFIG_ZORRO +#include <linux/zorro.h> +#endif + +#include <asm/bootinfo.h> +#include <asm/setup.h> +#include <asm/system.h> +#include <asm/pgtable.h> +#include <asm/amigahw.h> +#include <asm/amigaints.h> +#include <asm/irq.h> +#include <asm/rtc.h> +#include <asm/machdep.h> +#include <asm/io.h> + +unsigned long amiga_model; +unsigned long amiga_eclock; +unsigned long amiga_masterclock; +unsigned long amiga_colorclock; +unsigned long amiga_chipset; +unsigned char amiga_vblank; +unsigned char amiga_psfreq; +struct amiga_hw_present amiga_hw_present; + +static char s_a500[] __initdata = "A500"; +static char s_a500p[] __initdata = "A500+"; +static char s_a600[] __initdata = "A600"; +static char s_a1000[] __initdata = "A1000"; +static char s_a1200[] __initdata = "A1200"; +static char s_a2000[] __initdata = "A2000"; +static char s_a2500[] __initdata = "A2500"; +static char s_a3000[] __initdata = "A3000"; +static char s_a3000t[] __initdata = "A3000T"; +static char s_a3000p[] __initdata = "A3000+"; +static char s_a4000[] __initdata = "A4000"; +static char s_a4000t[] __initdata = "A4000T"; +static char s_cdtv[] __initdata = "CDTV"; +static char s_cd32[] __initdata = "CD32"; +static char s_draco[] __initdata = "Draco"; +static char *amiga_models[] __initdata = { + [AMI_500-AMI_500] = s_a500, + [AMI_500PLUS-AMI_500] = s_a500p, + [AMI_600-AMI_500] = s_a600, + [AMI_1000-AMI_500] = s_a1000, + [AMI_1200-AMI_500] = s_a1200, + [AMI_2000-AMI_500] = s_a2000, + [AMI_2500-AMI_500] = s_a2500, + [AMI_3000-AMI_500] = s_a3000, + [AMI_3000T-AMI_500] = s_a3000t, + [AMI_3000PLUS-AMI_500] = s_a3000p, + [AMI_4000-AMI_500] = s_a4000, + [AMI_4000T-AMI_500] = s_a4000t, + [AMI_CDTV-AMI_500] = s_cdtv, + [AMI_CD32-AMI_500] = s_cd32, + [AMI_DRACO-AMI_500] = s_draco, +}; + +static char amiga_model_name[13] = "Amiga "; + +extern char m68k_debug_device[]; + +static void amiga_sched_init(irqreturn_t (*handler)(int, void *, struct pt_regs *)); +/* amiga specific irq functions */ +extern void amiga_init_IRQ (void); +extern irqreturn_t (*amiga_default_handler[]) (int, void *, struct pt_regs *); +extern int amiga_request_irq (unsigned int irq, + irqreturn_t (*handler)(int, void *, struct pt_regs *), + unsigned long flags, const char *devname, + void *dev_id); +extern void amiga_free_irq (unsigned int irq, void *dev_id); +extern void amiga_enable_irq (unsigned int); +extern void amiga_disable_irq (unsigned int); +static void amiga_get_model(char *model); +static int amiga_get_hardware_list(char *buffer); +extern int show_amiga_interrupts (struct seq_file *, void *); +/* amiga specific timer functions */ +static unsigned long amiga_gettimeoffset (void); +static int a3000_hwclk (int, struct rtc_time *); +static int a2000_hwclk (int, struct rtc_time *); +static int amiga_set_clock_mmss (unsigned long); +static unsigned int amiga_get_ss (void); +extern void amiga_mksound( unsigned int count, unsigned int ticks ); +#ifdef CONFIG_AMIGA_FLOPPY +extern void amiga_floppy_setup(char *, int *); +#endif +static void amiga_reset (void); +extern void amiga_init_sound(void); +static void amiga_savekmsg_init(void); +static void amiga_mem_console_write(struct console *co, const char *b, + unsigned int count); +void amiga_serial_console_write(struct console *co, const char *s, + unsigned int count); +static void amiga_debug_init(void); +#ifdef CONFIG_HEARTBEAT +static void amiga_heartbeat(int on); +#endif + +static struct console amiga_console_driver = { + .name = "debug", + .flags = CON_PRINTBUFFER, + .index = -1, +}; + + + /* + * Motherboard Resources present in all Amiga models + */ + +static struct { + struct resource _ciab, _ciaa, _custom, _kickstart; +} mb_resources = { + ._ciab = { + .name = "CIA B", .start = 0x00bfd000, .end = 0x00bfdfff + }, + ._ciaa = { + .name = "CIA A", .start = 0x00bfe000, .end = 0x00bfefff + }, + ._custom = { + .name = "Custom I/O", .start = 0x00dff000, .end = 0x00dfffff + }, + ._kickstart = { + .name = "Kickstart ROM", .start = 0x00f80000, .end = 0x00ffffff + } +}; + +static struct resource rtc_resource = { + .start = 0x00dc0000, .end = 0x00dcffff +}; + +static struct resource ram_resource[NUM_MEMINFO]; + + + /* + * Parse an Amiga-specific record in the bootinfo + */ + +int amiga_parse_bootinfo(const struct bi_record *record) +{ + int unknown = 0; + const unsigned long *data = record->data; + + switch (record->tag) { + case BI_AMIGA_MODEL: + amiga_model = *data; + break; + + case BI_AMIGA_ECLOCK: + amiga_eclock = *data; + break; + + case BI_AMIGA_CHIPSET: + amiga_chipset = *data; + break; + + case BI_AMIGA_CHIP_SIZE: + amiga_chip_size = *(const int *)data; + break; + + case BI_AMIGA_VBLANK: + amiga_vblank = *(const unsigned char *)data; + break; + + case BI_AMIGA_PSFREQ: + amiga_psfreq = *(const unsigned char *)data; + break; + + case BI_AMIGA_AUTOCON: +#ifdef CONFIG_ZORRO + if (zorro_num_autocon < ZORRO_NUM_AUTO) { + const struct ConfigDev *cd = (struct ConfigDev *)data; + struct zorro_dev *dev = &zorro_autocon[zorro_num_autocon++]; + dev->rom = cd->cd_Rom; + dev->slotaddr = cd->cd_SlotAddr; + dev->slotsize = cd->cd_SlotSize; + dev->resource.start = (unsigned long)cd->cd_BoardAddr; + dev->resource.end = dev->resource.start+cd->cd_BoardSize-1; + } else + printk("amiga_parse_bootinfo: too many AutoConfig devices\n"); +#endif /* CONFIG_ZORRO */ + break; + + case BI_AMIGA_SERPER: + /* serial port period: ignored here */ + break; + + default: + unknown = 1; + } + return(unknown); +} + + /* + * Identify builtin hardware + */ + +static void __init amiga_identify(void) +{ + /* Fill in some default values, if necessary */ + if (amiga_eclock == 0) + amiga_eclock = 709379; + + memset(&amiga_hw_present, 0, sizeof(amiga_hw_present)); + + printk("Amiga hardware found: "); + if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) { + printk("[%s] ", amiga_models[amiga_model-AMI_500]); + strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]); + } + + switch(amiga_model) { + case AMI_UNKNOWN: + goto Generic; + + case AMI_600: + case AMI_1200: + AMIGAHW_SET(A1200_IDE); + AMIGAHW_SET(PCMCIA); + case AMI_500: + case AMI_500PLUS: + case AMI_1000: + case AMI_2000: + case AMI_2500: + AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */ + goto Generic; + + case AMI_3000: + case AMI_3000T: + AMIGAHW_SET(AMBER_FF); + AMIGAHW_SET(MAGIC_REKICK); + /* fall through */ + case AMI_3000PLUS: + AMIGAHW_SET(A3000_SCSI); + AMIGAHW_SET(A3000_CLK); + AMIGAHW_SET(ZORRO3); + goto Generic; + + case AMI_4000T: + AMIGAHW_SET(A4000_SCSI); + /* fall through */ + case AMI_4000: + AMIGAHW_SET(A4000_IDE); + AMIGAHW_SET(A3000_CLK); + AMIGAHW_SET(ZORRO3); + goto Generic; + + case AMI_CDTV: + case AMI_CD32: + AMIGAHW_SET(CD_ROM); + AMIGAHW_SET(A2000_CLK); /* Is this correct? */ + goto Generic; + + Generic: + AMIGAHW_SET(AMI_VIDEO); + AMIGAHW_SET(AMI_BLITTER); + AMIGAHW_SET(AMI_AUDIO); + AMIGAHW_SET(AMI_FLOPPY); + AMIGAHW_SET(AMI_KEYBOARD); + AMIGAHW_SET(AMI_MOUSE); + AMIGAHW_SET(AMI_SERIAL); + AMIGAHW_SET(AMI_PARALLEL); + AMIGAHW_SET(CHIP_RAM); + AMIGAHW_SET(PAULA); + + switch(amiga_chipset) { + case CS_OCS: + case CS_ECS: + case CS_AGA: + switch (custom.deniseid & 0xf) { + case 0x0c: + AMIGAHW_SET(DENISE_HR); + break; + case 0x08: + AMIGAHW_SET(LISA); + break; + } + break; + default: + AMIGAHW_SET(DENISE); + break; + } + switch ((custom.vposr>>8) & 0x7f) { + case 0x00: + AMIGAHW_SET(AGNUS_PAL); + break; + case 0x10: + AMIGAHW_SET(AGNUS_NTSC); + break; + case 0x20: + case 0x21: + AMIGAHW_SET(AGNUS_HR_PAL); + break; + case 0x30: + case 0x31: + AMIGAHW_SET(AGNUS_HR_NTSC); + break; + case 0x22: + case 0x23: + AMIGAHW_SET(ALICE_PAL); + break; + case 0x32: + case 0x33: + AMIGAHW_SET(ALICE_NTSC); + break; + } + AMIGAHW_SET(ZORRO); + break; + + case AMI_DRACO: + panic("No support for Draco yet"); + + default: + panic("Unknown Amiga Model"); + } + +#define AMIGAHW_ANNOUNCE(name, str) \ + if (AMIGAHW_PRESENT(name)) \ + printk(str) + + AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO "); + AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER "); + AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF "); + AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO "); + AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY "); + AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI "); + AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI "); + AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE "); + AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE "); + AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM "); + AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD "); + AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE "); + AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL "); + AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL "); + AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK "); + AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK "); + AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM "); + AMIGAHW_ANNOUNCE(PAULA, "PAULA "); + AMIGAHW_ANNOUNCE(DENISE, "DENISE "); + AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR "); + AMIGAHW_ANNOUNCE(LISA, "LISA "); + AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL "); + AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC "); + AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL "); + AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC "); + AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL "); + AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC "); + AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK "); + AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA "); + if (AMIGAHW_PRESENT(ZORRO)) + printk("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : ""); + printk("\n"); + +#undef AMIGAHW_ANNOUNCE +} + + /* + * Setup the Amiga configuration info + */ + +void __init config_amiga(void) +{ + int i; + + amiga_debug_init(); + amiga_identify(); + + /* Yuk, we don't have PCI memory */ + iomem_resource.name = "Memory"; + for (i = 0; i < 4; i++) + request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]); + + mach_sched_init = amiga_sched_init; + mach_init_IRQ = amiga_init_IRQ; + mach_default_handler = &amiga_default_handler; + mach_request_irq = amiga_request_irq; + mach_free_irq = amiga_free_irq; + enable_irq = amiga_enable_irq; + disable_irq = amiga_disable_irq; + mach_get_model = amiga_get_model; + mach_get_hardware_list = amiga_get_hardware_list; + mach_get_irq_list = show_amiga_interrupts; + mach_gettimeoffset = amiga_gettimeoffset; + if (AMIGAHW_PRESENT(A3000_CLK)){ + mach_hwclk = a3000_hwclk; + rtc_resource.name = "A3000 RTC"; + request_resource(&iomem_resource, &rtc_resource); + } + else{ /* if (AMIGAHW_PRESENT(A2000_CLK)) */ + mach_hwclk = a2000_hwclk; + rtc_resource.name = "A2000 RTC"; + request_resource(&iomem_resource, &rtc_resource); + } + + mach_max_dma_address = 0xffffffff; /* + * default MAX_DMA=0xffffffff + * on all machines. If we don't + * do so, the SCSI code will not + * be able to allocate any mem + * for transfers, unless we are + * dealing with a Z2 mem only + * system. /Jes + */ + + mach_set_clock_mmss = amiga_set_clock_mmss; + mach_get_ss = amiga_get_ss; +#ifdef CONFIG_AMIGA_FLOPPY + mach_floppy_setup = amiga_floppy_setup; +#endif + mach_reset = amiga_reset; +#ifdef CONFIG_DUMMY_CONSOLE + conswitchp = &dummy_con; +#endif +#if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) + mach_beep = amiga_mksound; +#endif + +#ifdef CONFIG_HEARTBEAT + mach_heartbeat = amiga_heartbeat; +#endif + + /* Fill in the clock values (based on the 700 kHz E-Clock) */ + amiga_masterclock = 40*amiga_eclock; /* 28 MHz */ + amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */ + + /* clear all DMA bits */ + custom.dmacon = DMAF_ALL; + /* ensure that the DMA master bit is set */ + custom.dmacon = DMAF_SETCLR | DMAF_MASTER; + + /* don't use Z2 RAM as system memory on Z3 capable machines */ + if (AMIGAHW_PRESENT(ZORRO3)) { + int i, j; + u32 disabled_z2mem = 0; + for (i = 0; i < m68k_num_memory; i++) + if (m68k_memory[i].addr < 16*1024*1024) { + if (i == 0) { + /* don't cut off the branch we're sitting on */ + printk("Warning: kernel runs in Zorro II memory\n"); + continue; + } + disabled_z2mem += m68k_memory[i].size; + m68k_num_memory--; + for (j = i; j < m68k_num_memory; j++) + m68k_memory[j] = m68k_memory[j+1]; + i--; + } + if (disabled_z2mem) + printk("%dK of Zorro II memory will not be used as system memory\n", + disabled_z2mem>>10); + } + + /* request all RAM */ + for (i = 0; i < m68k_num_memory; i++) { + ram_resource[i].name = + (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" : + (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" : + "16-bit Slow RAM"; + ram_resource[i].start = m68k_memory[i].addr; + ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1; + request_resource(&iomem_resource, &ram_resource[i]); + } + + /* initialize chipram allocator */ + amiga_chip_init (); + + /* debugging using chipram */ + if (!strcmp( m68k_debug_device, "mem" )){ + if (!AMIGAHW_PRESENT(CHIP_RAM)) + printk("Warning: no chipram present for debugging\n"); + else { + amiga_savekmsg_init(); + amiga_console_driver.write = amiga_mem_console_write; + register_console(&amiga_console_driver); + } + } + + /* our beloved beeper */ + if (AMIGAHW_PRESENT(AMI_AUDIO)) + amiga_init_sound(); + + /* + * if it is an A3000, set the magic bit that forces + * a hard rekick + */ + if (AMIGAHW_PRESENT(MAGIC_REKICK)) + *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80; +} + +static unsigned short jiffy_ticks; + +static void __init amiga_sched_init(irqreturn_t (*timer_routine)(int, void *, + struct pt_regs *)) +{ + static struct resource sched_res = { + .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff, + }; + jiffy_ticks = (amiga_eclock+HZ/2)/HZ; + + if (request_resource(&mb_resources._ciab, &sched_res)) + printk("Cannot allocate ciab.ta{lo,hi}\n"); + ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */ + ciab.talo = jiffy_ticks % 256; + ciab.tahi = jiffy_ticks / 256; + + /* install interrupt service routine for CIAB Timer A + * + * Please don't change this to use ciaa, as it interferes with the + * SCSI code. We'll have to take a look at this later + */ + request_irq(IRQ_AMIGA_CIAB_TA, timer_routine, 0, "timer", NULL); + /* start timer */ + ciab.cra |= 0x11; +} + +#define TICK_SIZE 10000 + +/* This is always executed with interrupts disabled. */ +static unsigned long amiga_gettimeoffset (void) +{ + unsigned short hi, lo, hi2; + unsigned long ticks, offset = 0; + + /* read CIA B timer A current value */ + hi = ciab.tahi; + lo = ciab.talo; + hi2 = ciab.tahi; + + if (hi != hi2) { + lo = ciab.talo; + hi = hi2; + } + + ticks = hi << 8 | lo; + + if (ticks > jiffy_ticks / 2) + /* check for pending interrupt */ + if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA) + offset = 10000; + + ticks = jiffy_ticks - ticks; + ticks = (10000 * ticks) / jiffy_ticks; + + return ticks + offset; +} + +static int a3000_hwclk(int op, struct rtc_time *t) +{ + tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD; + + if (!op) { /* read */ + t->tm_sec = tod_3000.second1 * 10 + tod_3000.second2; + t->tm_min = tod_3000.minute1 * 10 + tod_3000.minute2; + t->tm_hour = tod_3000.hour1 * 10 + tod_3000.hour2; + t->tm_mday = tod_3000.day1 * 10 + tod_3000.day2; + t->tm_wday = tod_3000.weekday; + t->tm_mon = tod_3000.month1 * 10 + tod_3000.month2 - 1; + t->tm_year = tod_3000.year1 * 10 + tod_3000.year2; + if (t->tm_year <= 69) + t->tm_year += 100; + } else { + tod_3000.second1 = t->tm_sec / 10; + tod_3000.second2 = t->tm_sec % 10; + tod_3000.minute1 = t->tm_min / 10; + tod_3000.minute2 = t->tm_min % 10; + tod_3000.hour1 = t->tm_hour / 10; + tod_3000.hour2 = t->tm_hour % 10; + tod_3000.day1 = t->tm_mday / 10; + tod_3000.day2 = t->tm_mday % 10; + if (t->tm_wday != -1) + tod_3000.weekday = t->tm_wday; + tod_3000.month1 = (t->tm_mon + 1) / 10; + tod_3000.month2 = (t->tm_mon + 1) % 10; + if (t->tm_year >= 100) + t->tm_year -= 100; + tod_3000.year1 = t->tm_year / 10; + tod_3000.year2 = t->tm_year % 10; + } + + tod_3000.cntrl1 = TOD3000_CNTRL1_FREE; + + return 0; +} + +static int a2000_hwclk(int op, struct rtc_time *t) +{ + int cnt = 5; + + tod_2000.cntrl1 = TOD2000_CNTRL1_HOLD; + + while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) + { + tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; + udelay(70); + tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; + } + + if (!cnt) + printk(KERN_INFO "hwclk: timed out waiting for RTC (0x%x)\n", tod_2000.cntrl1); + + if (!op) { /* read */ + t->tm_sec = tod_2000.second1 * 10 + tod_2000.second2; + t->tm_min = tod_2000.minute1 * 10 + tod_2000.minute2; + t->tm_hour = (tod_2000.hour1 & 3) * 10 + tod_2000.hour2; + t->tm_mday = tod_2000.day1 * 10 + tod_2000.day2; + t->tm_wday = tod_2000.weekday; + t->tm_mon = tod_2000.month1 * 10 + tod_2000.month2 - 1; + t->tm_year = tod_2000.year1 * 10 + tod_2000.year2; + if (t->tm_year <= 69) + t->tm_year += 100; + + if (!(tod_2000.cntrl3 & TOD2000_CNTRL3_24HMODE)){ + if (!(tod_2000.hour1 & TOD2000_HOUR1_PM) && t->tm_hour == 12) + t->tm_hour = 0; + else if ((tod_2000.hour1 & TOD2000_HOUR1_PM) && t->tm_hour != 12) + t->tm_hour += 12; + } + } else { + tod_2000.second1 = t->tm_sec / 10; + tod_2000.second2 = t->tm_sec % 10; + tod_2000.minute1 = t->tm_min / 10; + tod_2000.minute2 = t->tm_min % 10; + if (tod_2000.cntrl3 & TOD2000_CNTRL3_24HMODE) + tod_2000.hour1 = t->tm_hour / 10; + else if (t->tm_hour >= 12) + tod_2000.hour1 = TOD2000_HOUR1_PM + + (t->tm_hour - 12) / 10; + else + tod_2000.hour1 = t->tm_hour / 10; + tod_2000.hour2 = t->tm_hour % 10; + tod_2000.day1 = t->tm_mday / 10; + tod_2000.day2 = t->tm_mday % 10; + if (t->tm_wday != -1) + tod_2000.weekday = t->tm_wday; + tod_2000.month1 = (t->tm_mon + 1) / 10; + tod_2000.month2 = (t->tm_mon + 1) % 10; + if (t->tm_year >= 100) + t->tm_year -= 100; + tod_2000.year1 = t->tm_year / 10; + tod_2000.year2 = t->tm_year % 10; + } + + tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; + + return 0; +} + +static int amiga_set_clock_mmss (unsigned long nowtime) +{ + short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60; + + if (AMIGAHW_PRESENT(A3000_CLK)) { + tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD; + + tod_3000.second1 = real_seconds / 10; + tod_3000.second2 = real_seconds % 10; + tod_3000.minute1 = real_minutes / 10; + tod_3000.minute2 = real_minutes % 10; + + tod_3000.cntrl1 = TOD3000_CNTRL1_FREE; + } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ { + int cnt = 5; + + tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; + + while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) + { + tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; + udelay(70); + tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; + } + + if (!cnt) + printk(KERN_INFO "set_clock_mmss: timed out waiting for RTC (0x%x)\n", tod_2000.cntrl1); + + tod_2000.second1 = real_seconds / 10; + tod_2000.second2 = real_seconds % 10; + tod_2000.minute1 = real_minutes / 10; + tod_2000.minute2 = real_minutes % 10; + + tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; + } + + return 0; +} + +static unsigned int amiga_get_ss( void ) +{ + unsigned int s; + + if (AMIGAHW_PRESENT(A3000_CLK)) { + tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD; + s = tod_3000.second1 * 10 + tod_3000.second2; + tod_3000.cntrl1 = TOD3000_CNTRL1_FREE; + } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ { + s = tod_2000.second1 * 10 + tod_2000.second2; + } + return s; +} + +static NORET_TYPE void amiga_reset( void ) + ATTRIB_NORET; + +static void amiga_reset (void) +{ + unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); + unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label); + + local_irq_disable(); + if (CPU_IS_040_OR_060) + /* Setup transparent translation registers for mapping + * of 16 MB kernel segment before disabling translation + */ + __asm__ __volatile__ + ("movel %0,%/d0\n\t" + "andl #0xff000000,%/d0\n\t" + "orw #0xe020,%/d0\n\t" /* map 16 MB, enable, cacheable */ + ".chip 68040\n\t" + "movec %%d0,%%itt0\n\t" + "movec %%d0,%%dtt0\n\t" + ".chip 68k\n\t" + "jmp %0@\n\t" + : /* no outputs */ + : "a" (jmp_addr040)); + else + /* for 680[23]0, just disable translation and jump to the physical + * address of the label + */ + __asm__ __volatile__ + ("pmove %/tc,%@\n\t" + "bclr #7,%@\n\t" + "pmove %@,%/tc\n\t" + "jmp %0@\n\t" + : /* no outputs */ + : "a" (jmp_addr)); + jmp_addr_label040: + /* disable translation on '040 now */ + __asm__ __volatile__ + ("moveq #0,%/d0\n\t" + ".chip 68040\n\t" + "movec %%d0,%%tc\n\t" /* disable MMU */ + ".chip 68k\n\t" + : /* no outputs */ + : /* no inputs */ + : "d0"); + + jmp_addr_label: + /* pickup reset address from AmigaOS ROM, reset devices and jump + * to reset address + */ + __asm__ __volatile__ + ("movew #0x2700,%/sr\n\t" + "leal 0x01000000,%/a0\n\t" + "subl %/a0@(-0x14),%/a0\n\t" + "movel %/a0@(4),%/a0\n\t" + "subql #2,%/a0\n\t" + "bra 1f\n\t" + /* align on a longword boundary */ + __ALIGN_STR "\n" + "1:\n\t" + "reset\n\t" + "jmp %/a0@" : /* Just that gcc scans it for % escapes */ ); + + for (;;); + +} + + + /* + * Debugging + */ + +#define SAVEKMSG_MAXMEM 128*1024 + +#define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */ +#define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */ + +struct savekmsg { + unsigned long magic1; /* SAVEKMSG_MAGIC1 */ + unsigned long magic2; /* SAVEKMSG_MAGIC2 */ + unsigned long magicptr; /* address of magic1 */ + unsigned long size; + char data[0]; +}; + +static struct savekmsg *savekmsg; + +static void amiga_mem_console_write(struct console *co, const char *s, + unsigned int count) +{ + if (savekmsg->size+count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) { + memcpy(savekmsg->data+savekmsg->size, s, count); + savekmsg->size += count; + } +} + +static void amiga_savekmsg_init(void) +{ + static struct resource debug_res = { .name = "Debug" }; + + savekmsg = amiga_chip_alloc_res(SAVEKMSG_MAXMEM, &debug_res); + savekmsg->magic1 = SAVEKMSG_MAGIC1; + savekmsg->magic2 = SAVEKMSG_MAGIC2; + savekmsg->magicptr = ZTWO_PADDR(savekmsg); + savekmsg->size = 0; +} + +static void amiga_serial_putc(char c) +{ + custom.serdat = (unsigned char)c | 0x100; + while (!(custom.serdatr & 0x2000)) + ; +} + +void amiga_serial_console_write(struct console *co, const char *s, + unsigned int count) +{ + while (count--) { + if (*s == '\n') + amiga_serial_putc('\r'); + amiga_serial_putc(*s++); + } +} + +#ifdef CONFIG_SERIAL_CONSOLE +void amiga_serial_puts(const char *s) +{ + amiga_serial_console_write(NULL, s, strlen(s)); +} + +int amiga_serial_console_wait_key(struct console *co) +{ + int ch; + + while (!(custom.intreqr & IF_RBF)) + barrier(); + ch = custom.serdatr & 0xff; + /* clear the interrupt, so that another character can be read */ + custom.intreq = IF_RBF; + return ch; +} + +void amiga_serial_gets(struct console *co, char *s, int len) +{ + int ch, cnt = 0; + + while (1) { + ch = amiga_serial_console_wait_key(co); + + /* Check for backspace. */ + if (ch == 8 || ch == 127) { + if (cnt == 0) { + amiga_serial_putc('\007'); + continue; + } + cnt--; + amiga_serial_puts("\010 \010"); + continue; + } + + /* Check for enter. */ + if (ch == 10 || ch == 13) + break; + + /* See if line is too long. */ + if (cnt >= len + 1) { + amiga_serial_putc(7); + cnt--; + continue; + } + + /* Store and echo character. */ + s[cnt++] = ch; + amiga_serial_putc(ch); + } + /* Print enter. */ + amiga_serial_puts("\r\n"); + s[cnt] = 0; +} +#endif + +static void __init amiga_debug_init(void) +{ + if (!strcmp( m68k_debug_device, "ser" )) { + /* no initialization required (?) */ + amiga_console_driver.write = amiga_serial_console_write; + register_console(&amiga_console_driver); + } +} + +#ifdef CONFIG_HEARTBEAT +static void amiga_heartbeat(int on) +{ + if (on) + ciaa.pra &= ~2; + else + ciaa.pra |= 2; +} +#endif + + /* + * Amiga specific parts of /proc + */ + +static void amiga_get_model(char *model) +{ + strcpy(model, amiga_model_name); +} + + +static int amiga_get_hardware_list(char *buffer) +{ + int len = 0; + + if (AMIGAHW_PRESENT(CHIP_RAM)) + len += sprintf(buffer+len, "Chip RAM:\t%ldK\n", amiga_chip_size>>10); + len += sprintf(buffer+len, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n", + amiga_psfreq, amiga_eclock); + if (AMIGAHW_PRESENT(AMI_VIDEO)) { + char *type; + switch(amiga_chipset) { + case CS_OCS: + type = "OCS"; + break; + case CS_ECS: + type = "ECS"; + break; + case CS_AGA: + type = "AGA"; + break; + default: + type = "Old or Unknown"; + break; + } + len += sprintf(buffer+len, "Graphics:\t%s\n", type); + } + +#define AMIGAHW_ANNOUNCE(name, str) \ + if (AMIGAHW_PRESENT(name)) \ + len += sprintf (buffer+len, "\t%s\n", str) + + len += sprintf (buffer + len, "Detected hardware:\n"); + + AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video"); + AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter"); + AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer"); + AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio"); + AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller"); + AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)"); + AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)"); + AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)"); + AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)"); + AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive"); + AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard"); + AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port"); + AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port"); + AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port"); + AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)"); + AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)"); + AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM"); + AMIGAHW_ANNOUNCE(PAULA, "Paula 8364"); + AMIGAHW_ANNOUNCE(DENISE, "Denise 8362"); + AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373"); + AMIGAHW_ANNOUNCE(LISA, "Lisa 8375"); + AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371"); + AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370"); + AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372"); + AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372"); + AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374"); + AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374"); + AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick"); + AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot"); +#ifdef CONFIG_ZORRO + if (AMIGAHW_PRESENT(ZORRO)) + len += sprintf(buffer+len, "\tZorro II%s AutoConfig: %d Expansion " + "Device%s\n", + AMIGAHW_PRESENT(ZORRO3) ? "I" : "", + zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s"); +#endif /* CONFIG_ZORRO */ + +#undef AMIGAHW_ANNOUNCE + + return(len); +} |