/* * 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 #include #include #include #include #include #include #include #include #include #include #ifdef CONFIG_ZORRO #include #endif #include #include #include #include #include #include #include #include #include #include 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 (amiga_custom.deniseid & 0xf) { case 0x0c: AMIGAHW_SET(DENISE_HR); break; case 0x08: AMIGAHW_SET(LISA); break; } break; default: AMIGAHW_SET(DENISE); break; } switch ((amiga_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; #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 */ amiga_custom.dmacon = DMAF_ALL; /* ensure that the DMA master bit is set */ amiga_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) { amiga_custom.serdat = (unsigned char)c | 0x100; while (!(amiga_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 (!(amiga_custom.intreqr & IF_RBF)) barrier(); ch = amiga_custom.serdatr & 0xff; /* clear the interrupt, so that another character can be read */ amiga_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); }