diff options
Diffstat (limited to 'arch/ppc/kernel/prep_setup.c')
| -rw-r--r-- | arch/ppc/kernel/prep_setup.c | 927 |
1 files changed, 0 insertions, 927 deletions
diff --git a/arch/ppc/kernel/prep_setup.c b/arch/ppc/kernel/prep_setup.c deleted file mode 100644 index cf8ecaae9bcb..000000000000 --- a/arch/ppc/kernel/prep_setup.c +++ /dev/null @@ -1,927 +0,0 @@ -/* - * BK Id: SCCS/s.prep_setup.c 1.44 11/13/01 21:26:07 paulus - */ -/* - * linux/arch/ppc/kernel/setup.c - * - * Copyright (C) 1995 Linus Torvalds - * Adapted from 'alpha' version by Gary Thomas - * Modified by Cort Dougan (cort@cs.nmt.edu) - * - * Support for PReP (Motorola MTX/MVME) - * by Troy Benjegerdes (hozer@drgw.net) - */ - -/* - * bootup setup stuff.. - */ - -#include <linux/config.h> -#include <linux/delay.h> -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/stddef.h> -#include <linux/unistd.h> -#include <linux/ptrace.h> -#include <linux/slab.h> -#include <linux/user.h> -#include <linux/a.out.h> -#include <linux/tty.h> -#include <linux/major.h> -#include <linux/interrupt.h> -#include <linux/reboot.h> -#include <linux/init.h> -#include <linux/blk.h> -#include <linux/ioport.h> -#include <linux/console.h> -#include <linux/timex.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/seq_file.h> - -#include <asm/sections.h> -#include <asm/mmu.h> -#include <asm/processor.h> -#include <asm/residual.h> -#include <asm/io.h> -#include <asm/pgtable.h> -#include <asm/cache.h> -#include <asm/dma.h> -#include <asm/machdep.h> -#include <asm/mk48t59.h> -#include <asm/prep_nvram.h> -#include <asm/raven.h> -#include <asm/keyboard.h> -#include <asm/vga.h> -#include <asm/time.h> - -#include "local_irq.h" -#include "i8259.h" -#include "open_pic.h" - -#if defined(CONFIG_SOUND) || defined(CONFIG_SOUND_MODULE) -#include <../drivers/sound/sound_config.h> -#include <../drivers/sound/dev_table.h> -#endif - -unsigned char ucSystemType; -unsigned char ucBoardRev; -unsigned char ucBoardRevMaj, ucBoardRevMin; - -extern unsigned long mc146818_get_rtc_time(void); -extern int mc146818_set_rtc_time(unsigned long nowtime); -extern unsigned long mk48t59_get_rtc_time(void); -extern int mk48t59_set_rtc_time(unsigned long nowtime); - -extern unsigned char prep_nvram_read_val(int addr); -extern void prep_nvram_write_val(int addr, - unsigned char val); -extern unsigned char rs_nvram_read_val(int addr); -extern void rs_nvram_write_val(int addr, - unsigned char val); -extern void ibm_prep_init(void); - -extern int pckbd_setkeycode(unsigned int scancode, unsigned int keycode); -extern int pckbd_getkeycode(unsigned int scancode); -extern int pckbd_translate(unsigned char scancode, unsigned char *keycode, - char raw_mode); -extern char pckbd_unexpected_up(unsigned char keycode); -extern void pckbd_leds(unsigned char leds); -extern void pckbd_init_hw(void); -extern unsigned char pckbd_sysrq_xlate[]; - -extern void prep_find_bridges(void); -extern char saved_command_line[]; - -int _prep_type; - -#define cached_21 (((char *)(ppc_cached_irq_mask))[3]) -#define cached_A1 (((char *)(ppc_cached_irq_mask))[2]) - -/* for the mac fs */ -kdev_t boot_dev; -/* used in nasty hack for sound - see prep_setup_arch() -- Cort */ -long ppc_cs4232_dma, ppc_cs4232_dma2; - -extern PTE *Hash, *Hash_end; -extern unsigned long Hash_size, Hash_mask; -extern int probingmem; -extern unsigned long loops_per_jiffy; - -#ifdef CONFIG_SOUND_MODULE -EXPORT_SYMBOL(ppc_cs4232_dma); -EXPORT_SYMBOL(ppc_cs4232_dma2); -#endif - -static int __prep -prep_show_cpuinfo(struct seq_file *m) -{ - extern char *Motherboard_map_name; - int cachew; -#ifdef CONFIG_PREP_RESIDUAL - int i; -#endif - - seq_printf(m, "machine\t\t: PReP %s\n", Motherboard_map_name); - - switch ( _prep_type ) { - case _PREP_IBM: - cachew = inw(0x80c); - if (cachew & (1<<6)) - seq_printf(m, "Upgrade CPU\n"); - seq_printf(m, "L2\t\t: "); - if (cachew & (1<<7)) { - seq_printf(m, "not present\n"); - goto no_l2; - } - seq_printf(m, "%sKb,", (cachew & (1 << 10))? "512" : "256"); - seq_printf(m, "%ssync\n", (cachew & (1 << 15))? "" : "a"); - break; - case _PREP_Motorola: - cachew = *((unsigned char *)CACHECRBA); - seq_printf(m, "L2\t\t: "); - switch (cachew & L2CACHE_MASK) { - case L2CACHE_512KB: - seq_printf(m, "512Kb"); - break; - case L2CACHE_256KB: - seq_printf(m, "256Kb"); - break; - case L2CACHE_1MB: - seq_printf(m, "1MB"); - break; - case L2CACHE_NONE: - seq_printf(m, "none\n"); - goto no_l2; - break; - default: - seq_printf(m, "%x\n", cachew); - } - - seq_printf(m, ", parity %s", - (cachew & L2CACHE_PARITY)? "enabled" : "disabled"); - - seq_printf(m, " SRAM:"); - - switch ( ((cachew & 0xf0) >> 4) & ~(0x3) ) { - case 1: seq_printf(m, "synchronous,parity,flow-through\n"); - break; - case 2: seq_printf(m, "asynchronous,no parity\n"); - break; - case 3: seq_printf(m, "asynchronous,parity\n"); - break; - default:seq_printf(m, "synchronous,pipelined,no parity\n"); - break; - } - break; - default: - break; - } - -no_l2: -#ifdef CONFIG_PREP_RESIDUAL - if (res->ResidualLength == 0) { - /* print info about SIMMs */ - seq_printf(m, "simms\t\t: "); - for (i = 0; (res->ActualNumMemories) && (i < MAX_MEMS); i++) { - if (res->Memories[i].SIMMSize != 0) - seq_printf(m, "%d:%ldM ", i, - (res->Memories[i].SIMMSize > 1024) ? - res->Memories[i].SIMMSize>>20 : - res->Memories[i].SIMMSize); - } - seq_printf(m, "\n"); - } -#endif - - return 0; -} - -static int __prep -prep_show_percpuinfo(struct seq_file *m, int i) -{ - int len = 0; - - /* PREP's without residual data will give incorrect values here */ - seq_printf(m, "clock\t\t: "); -#ifdef CONFIG_PREP_RESIDUAL - if (res->ResidualLength) - seq_printf(m, "%ldMHz\n", - (res->VitalProductData.ProcessorHz > 1024) ? - res->VitalProductData.ProcessorHz>>20 : - res->VitalProductData.ProcessorHz); - else -#endif /* CONFIG_PREP_RESIDUAL */ - seq_printf(m, "???\n"); - - return 0; -} - -static void __init -prep_setup_arch(void) -{ - unsigned char reg; -#if 0 /* unused?? */ - unsigned char ucMothMemType; - unsigned char ucEquipPres1; -#endif - - /* init to some ~sane value until calibrate_delay() runs */ - loops_per_jiffy = 50000000; - - /* Lookup PCI host bridges */ - prep_find_bridges(); - - /* Set up floppy in PS/2 mode */ - outb(0x09, SIO_CONFIG_RA); - reg = inb(SIO_CONFIG_RD); - reg = (reg & 0x3F) | 0x40; - outb(reg, SIO_CONFIG_RD); - outb(reg, SIO_CONFIG_RD); /* Have to write twice to change! */ - - /* - * We need to set up the NvRAM access routines early as prep_init - * has yet to be called - */ - ppc_md.nvram_read_val = prep_nvram_read_val; - ppc_md.nvram_write_val = prep_nvram_write_val; - - /* we should determine this according to what we find! -- Cort */ - switch ( _prep_type ) - { - case _PREP_IBM: - /* Enable L2. Assume we don't need to flush -- Cort*/ - *(unsigned char *)(0x8000081c) |= 3; - ROOT_DEV = to_kdev_t(0x0301); /* hda1 */ - break; - case _PREP_Motorola: - /* Enable L2. Assume we don't need to flush -- Cort*/ - *(unsigned char *)(0x8000081c) |= 3; -#ifdef CONFIG_BLK_DEV_INITRD - if (initrd_start) - ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0); /* /dev/ram */ - else -#endif -#ifdef CONFIG_ROOT_NFS - ROOT_DEV = to_kdev_t(0x00ff); /* /dev/nfs */ -#else - ROOT_DEV = to_kdev_t(0x0802); /* /dev/sda2 */ -#endif - break; - } - - /* Read in NVRAM data */ - init_prep_nvram(); - - /* if no bootargs, look in NVRAM */ - if ( cmd_line[0] == '\0' ) { - char *bootargs; - bootargs = prep_nvram_get_var("bootargs"); - if (bootargs != NULL) { - strcpy(cmd_line, bootargs); - /* again.. */ - strcpy(saved_command_line, cmd_line); - } - } - -#ifdef CONFIG_SOUND_CS4232 - /* - * setup proper values for the cs4232 driver so we don't have - * to recompile for the motorola or ibm workstations sound systems. - * This is a really nasty hack, but unless we change the driver - * it's the only way to support both addrs from one binary. - * -- Cort - */ - if ( _machine == _MACH_prep ) - { - extern struct card_info snd_installed_cards[]; - struct card_info *snd_ptr; - - for ( snd_ptr = snd_installed_cards; - snd_ptr < &snd_installed_cards[num_sound_cards]; - snd_ptr++ ) - { - if ( snd_ptr->card_type == SNDCARD_CS4232 ) - { - if ( _prep_type == _PREP_Motorola ) - { - snd_ptr->config.io_base = 0x830; - snd_ptr->config.irq = 10; - snd_ptr->config.dma = ppc_cs4232_dma = 6; - snd_ptr->config.dma2 = ppc_cs4232_dma2 = 7; - } - if ( _prep_type == _PREP_IBM ) - { - snd_ptr->config.io_base = 0x530; - snd_ptr->config.irq = 5; - snd_ptr->config.dma = ppc_cs4232_dma = 1; - /* this is wrong - but leave it for now */ - snd_ptr->config.dma2 = ppc_cs4232_dma2 = 7; - } - } - } - } -#endif /* CONFIG_SOUND_CS4232 */ - - /*print_residual_device_info();*/ - - switch (_prep_type) { - case _PREP_Motorola: - raven_init(); - break; - case _PREP_IBM: - ibm_prep_init(); - break; - } - -#ifdef CONFIG_VGA_CONSOLE - /* remap the VGA memory */ - vgacon_remap_base = 0xf0000000; - /*vgacon_remap_base = ioremap(0xc0000000, 0xba000);*/ - conswitchp = &vga_con; -#elif defined(CONFIG_DUMMY_CONSOLE) - conswitchp = &dummy_con; -#endif -} - -/* - * Determine the decrementer frequency from the residual data - * This allows for a faster boot as we do not need to calibrate the - * decrementer against another clock. This is important for embedded systems. - */ -static int __init -prep_res_calibrate_decr(void) -{ -#ifdef CONFIG_PREP_RESIDUAL - unsigned long freq, divisor = 4; - - if ( res->VitalProductData.ProcessorBusHz ) { - freq = res->VitalProductData.ProcessorBusHz; - printk("time_init: decrementer frequency = %lu.%.6lu MHz\n", - (freq/divisor)/1000000, - (freq/divisor)%1000000); - tb_to_us = mulhwu_scale_factor(freq/divisor, 1000000); - tb_ticks_per_jiffy = freq / HZ / divisor; - return 0; - } else -#endif - return 1; -} - -/* - * Uses the on-board timer to calibrate the on-chip decrementer register - * for prep systems. On the pmac the OF tells us what the frequency is - * but on prep we have to figure it out. - * -- Cort - */ -/* Done with 3 interrupts: the first one primes the cache and the - * 2 following ones measure the interval. The precision of the method - * is still doubtful due to the short interval sampled. - */ -static volatile int calibrate_steps __initdata = 3; -static unsigned tbstamp __initdata = 0; - -static void __init -prep_calibrate_decr_handler(int irq, void *dev, struct pt_regs *regs) -{ - unsigned long t, freq; - int step=--calibrate_steps; - - t = get_tbl(); - if (step > 0) { - tbstamp = t; - } else { - freq = (t - tbstamp)*HZ; - printk("time_init: decrementer frequency = %lu.%.6lu MHz\n", - freq/1000000, freq%1000000); - tb_ticks_per_jiffy = freq / HZ; - tb_to_us = mulhwu_scale_factor(freq, 1000000); - } -} - -static void __init -prep_calibrate_decr(void) -{ - int res; - - /* Try and get this from the residual data. */ - res = prep_res_calibrate_decr(); - - /* If we didn't get it from the residual data, try this. */ - if ( res ) { - unsigned long flags; - - save_flags(flags); - -#define TIMER0_COUNT 0x40 -#define TIMER_CONTROL 0x43 - /* set timer to periodic mode */ - outb_p(0x34,TIMER_CONTROL);/* binary, mode 2, LSB/MSB, ch 0 */ - /* set the clock to ~100 Hz */ - outb_p(LATCH & 0xff , TIMER0_COUNT); /* LSB */ - outb(LATCH >> 8 , TIMER0_COUNT); /* MSB */ - - if (request_irq(0, prep_calibrate_decr_handler, 0, "timer", NULL) != 0) - panic("Could not allocate timer IRQ!"); - __sti(); - /* wait for calibrate */ - while ( calibrate_steps ) - ; - restore_flags(flags); - free_irq( 0, NULL); - } -} - -static long __init -mk48t59_init(void) { - unsigned char tmp; - - tmp = ppc_md.nvram_read_val(MK48T59_RTC_CONTROLB); - if (tmp & MK48T59_RTC_CB_STOP) { - printk("Warning: RTC was stopped, date will be wrong.\n"); - ppc_md.nvram_write_val(MK48T59_RTC_CONTROLB, - tmp & ~MK48T59_RTC_CB_STOP); - /* Low frequency crystal oscillators may take a very long - * time to startup and stabilize. For now just ignore the - * the issue, but attempting to calibrate the decrementer - * from the RTC just after this wakeup is likely to be very - * inaccurate. Firmware should not allow to load - * the OS with the clock stopped anyway... - */ - } - /* Ensure that the clock registers are updated */ - tmp = ppc_md.nvram_read_val(MK48T59_RTC_CONTROLA); - tmp &= ~(MK48T59_RTC_CA_READ | MK48T59_RTC_CA_WRITE); - ppc_md.nvram_write_val(MK48T59_RTC_CONTROLA, tmp); - return 0; -} - -/* We use the NVRAM RTC to time a second to calibrate the decrementer, - * the RTC registers have just been set up in the right state by the - * preceding routine. - */ -static void __init -mk48t59_calibrate_decr(void) -{ - unsigned long freq; - unsigned long t1; - unsigned char save_control; - long i; - unsigned char sec; - - - /* Make sure the time is not stopped. */ - save_control = ppc_md.nvram_read_val(MK48T59_RTC_CONTROLB); - - ppc_md.nvram_write_val(MK48T59_RTC_CONTROLA, - (save_control & (~MK48T59_RTC_CB_STOP))); - - /* Now make sure the read bit is off so the value will change. */ - save_control = ppc_md.nvram_read_val(MK48T59_RTC_CONTROLA); - save_control &= ~MK48T59_RTC_CA_READ; - ppc_md.nvram_write_val(MK48T59_RTC_CONTROLA, save_control); - - - /* Read the seconds value to see when it changes. */ - sec = ppc_md.nvram_read_val(MK48T59_RTC_SECONDS); - /* Actually this is bad for precision, we should have a loop in - * which we only read the seconds counter. nvram_read_val writes - * the address bytes on every call and this takes a lot of time. - * Perhaps an nvram_wait_change method returning a time - * stamp with a loop count as parameter would be the solution. - */ - for (i = 0 ; i < 1000000 ; i++) { /* may take up to 1 second... */ - t1 = get_tbl(); - if (ppc_md.nvram_read_val(MK48T59_RTC_SECONDS) != sec) { - break; - } - } - - sec = ppc_md.nvram_read_val(MK48T59_RTC_SECONDS); - for (i = 0 ; i < 1000000 ; i++) { /* Should take up 1 second... */ - freq = get_tbl()-t1; - if (ppc_md.nvram_read_val(MK48T59_RTC_SECONDS) != sec) - break; - } - - printk("time_init: decrementer frequency = %lu.%.6lu MHz\n", - freq/1000000, freq%1000000); - tb_ticks_per_jiffy = freq / HZ; - tb_to_us = mulhwu_scale_factor(freq, 1000000); -} - -static void __prep -prep_restart(char *cmd) -{ - unsigned long i = 10000; - - __cli(); - - /* set exception prefix high - to the prom */ - _nmask_and_or_msr(0, MSR_IP); - - /* make sure bit 0 (reset) is a 0 */ - outb( inb(0x92) & ~1L , 0x92 ); - /* signal a reset to system control port A - soft reset */ - outb( inb(0x92) | 1 , 0x92 ); - - while ( i != 0 ) i++; - panic("restart failed\n"); -} - -static void __prep -prep_halt(void) -{ - unsigned long flags; - __cli(); - /* set exception prefix high - to the prom */ - save_flags( flags ); - restore_flags( flags|MSR_IP ); - - /* make sure bit 0 (reset) is a 0 */ - outb( inb(0x92) & ~1L , 0x92 ); - /* signal a reset to system control port A - soft reset */ - outb( inb(0x92) | 1 , 0x92 ); - - while ( 1 ) ; - /* - * Not reached - */ -} - -/* - * On IBM PReP's, power management is handled by a Signetics 87c750 behind the - * Utah component on the ISA bus. To access the 750 you must write a series of - * nibbles to port 0x82a (decoded by the Utah). This is described somewhat in - * the IBM Carolina Technical Specification. - * -Hollis - */ -static void __prep -utah_sig87c750_setbit(unsigned int bytenum, unsigned int bitnum, int value) -{ - /* - * byte1: 0 0 0 1 0 d a5 a4 - * byte2: 0 0 0 1 a3 a2 a1 a0 - * - * d = the bit's value, enabled or disabled - * (a5 a4 a3) = the byte number, minus 20 - * (a2 a1 a0) = the bit number - * - * example: set the 5th bit of byte 21 (21.5) - * a5 a4 a3 = 001 (byte 1) - * a2 a1 a0 = 101 (bit 5) - * - * byte1 = 0001 0100 (0x14) - * byte2 = 0001 1101 (0x1d) - */ - unsigned char byte1=0x10, byte2=0x10; - const unsigned int pm_reg_1=0x82a; /* ISA address */ - - /* the 750's '20.0' is accessed as '0.0' through Utah (which adds 20) */ - bytenum -= 20; - - byte1 |= (!!value) << 2; /* set d */ - byte1 |= (bytenum >> 1) & 0x3; /* set a5, a4 */ - - byte2 |= (bytenum & 0x1) << 3; /* set a3 */ - byte2 |= bitnum & 0x7; /* set a2, a1, a0 */ - - outb(byte1, pm_reg_1); /* first nibble */ - mb(); - udelay(100); /* important: let controller recover */ - - outb(byte2, pm_reg_1); /* second nibble */ - mb(); - udelay(100); /* important: let controller recover */ -} - -static void __prep -prep_power_off(void) -{ - if ( _prep_type == _PREP_IBM) { - /* tested on: - * Carolina's: 7248-43P, 6070 (PowerSeries 850) - * should work on: - * Carolina: 6050 (PowerSeries 830) - * 7043-140 (Tiger 1) - */ - unsigned long flags; - __cli(); - /* set exception prefix high - to the prom */ - save_flags( flags ); - restore_flags( flags|MSR_IP ); - - utah_sig87c750_setbit(21, 5, 1); /* set bit 21.5, "PMEXEC_OFF" */ - - while ( 1 ) ; - /* not reached */ - } else { - prep_halt(); - } -} - -static unsigned int __prep -prep_irq_cannonicalize(u_int irq) -{ - if (irq == 2) - { - return 9; - } - else - { - return irq; - } -} - -static int __prep -prep_get_irq(struct pt_regs *regs) -{ - return i8259_irq(smp_processor_id()); -} - -static void __init -prep_init_IRQ(void) -{ - int i; - - if (OpenPIC_Addr != NULL) - openpic_init(1, NUM_8259_INTERRUPTS, 0, -1); - for ( i = 0 ; i < NUM_8259_INTERRUPTS ; i++ ) - irq_desc[i].handler = &i8259_pic; - i8259_init(); -} - -#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) -/* - * IDE stuff. - */ -static int __prep -prep_ide_default_irq(ide_ioreg_t base) -{ - switch (base) { - case 0x1f0: return 13; - case 0x170: return 13; - case 0x1e8: return 11; - case 0x168: return 10; - case 0xfff0: return 14; /* MCP(N)750 ide0 */ - case 0xffe0: return 15; /* MCP(N)750 ide1 */ - default: return 0; - } -} - -static ide_ioreg_t __prep -prep_ide_default_io_base(int index) -{ - switch (index) { - case 0: return 0x1f0; - case 1: return 0x170; - case 2: return 0x1e8; - case 3: return 0x168; - default: - return 0; - } -} - -static int __prep -prep_ide_check_region(ide_ioreg_t from, unsigned int extent) -{ - return check_region(from, extent); -} - -static void __prep -prep_ide_request_region(ide_ioreg_t from, - unsigned int extent, - const char *name) -{ - request_region(from, extent, name); -} - -static void __prep -prep_ide_release_region(ide_ioreg_t from, - unsigned int extent) -{ - release_region(from, extent); -} - -static void __init -prep_ide_init_hwif_ports (hw_regs_t *hw, ide_ioreg_t data_port, ide_ioreg_t ctrl_port, int *irq) -{ - ide_ioreg_t reg = data_port; - int i; - - for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) { - hw->io_ports[i] = reg; - reg += 1; - } - if (ctrl_port) { - hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port; - } else { - hw->io_ports[IDE_CONTROL_OFFSET] = hw->io_ports[IDE_DATA_OFFSET] + 0x206; - } - if (irq != NULL) - *irq = 0; -} -#endif - -#ifdef CONFIG_SMP -/* PReP (MTX) support */ -static int __init -smp_prep_probe(void) -{ - extern int mot_multi; - - if (mot_multi) { - openpic_request_IPIs(); - smp_hw_index[1] = 1; - return 2; - } - - return 1; -} - -static void __init -smp_prep_kick_cpu(int nr) -{ - *(unsigned long *)KERNELBASE = nr; - asm volatile("dcbf 0,%0"::"r"(KERNELBASE):"memory"); - printk("CPU1 reset, waiting\n"); -} - -static void __init -smp_prep_setup_cpu(int cpu_nr) -{ - if (OpenPIC_Addr) - do_openpic_setup_cpu(); -} - -static struct smp_ops_t prep_smp_ops __prepdata = { - smp_openpic_message_pass, - smp_prep_probe, - smp_prep_kick_cpu, - smp_prep_setup_cpu, -}; -#endif /* CONFIG_SMP */ - -/* - * This finds the amount of physical ram and does necessary - * setup for prep. This is pretty architecture specific so - * this will likely stay separate from the pmac. - * -- Cort - */ -static unsigned long __init -prep_find_end_of_memory(void) -{ - unsigned long total = 0; - extern unsigned int boot_mem_size; - -#ifdef CONFIG_PREP_RESIDUAL - total = res->TotalMemory; -#endif - - if (total == 0 && boot_mem_size != 0) - total = boot_mem_size; - else if (total == 0) { - /* - * I need a way to probe the amount of memory if the residual - * data doesn't contain it. -- Cort - */ - total = 0x02000000; - printk(KERN_INFO "Ramsize from residual data was 0" - " -- defaulting to %ldM\n", total>>20); - } - - return (total); -} - -/* - * Setup the bat mappings we're going to load that cover - * the io areas. RAM was mapped by mapin_ram(). - * -- Cort - */ -static void __init -prep_map_io(void) -{ - io_block_mapping(0x80000000, PREP_ISA_IO_BASE, 0x10000000, _PAGE_IO); - io_block_mapping(0xf0000000, PREP_ISA_MEM_BASE, 0x08000000, _PAGE_IO); -} - -static void __init -prep_init2(void) -{ -#ifdef CONFIG_NVRAM - request_region(PREP_NVRAM_AS0, 0x8, "nvram"); -#endif - request_region(0x20,0x20,"pic1"); - request_region(0xa0,0x20,"pic2"); - request_region(0x00,0x20,"dma1"); - request_region(0x40,0x20,"timer"); - request_region(0x80,0x10,"dma page reg"); - request_region(0xc0,0x20,"dma2"); -} - -void __init -prep_init(unsigned long r3, unsigned long r4, unsigned long r5, - unsigned long r6, unsigned long r7) -{ -#ifdef CONFIG_PREP_RESIDUAL - /* make a copy of residual data */ - if ( r3 ) { - memcpy((void *)res,(void *)(r3+KERNELBASE), - sizeof(RESIDUAL)); - } -#endif - -#ifdef CONFIG_BLK_DEV_INITRD - if ( r4 ) - { - initrd_start = r4 + KERNELBASE; - initrd_end = r5 + KERNELBASE; - } -#endif /* CONFIG_BLK_DEV_INITRD */ - - /* Copy cmd_line parameters */ - if ( r6 ) - { - *(char *)(r7 + KERNELBASE) = 0; - strcpy(cmd_line, (char *)(r6 + KERNELBASE)); - } - - isa_io_base = PREP_ISA_IO_BASE; - isa_mem_base = PREP_ISA_MEM_BASE; - pci_dram_offset = PREP_PCI_DRAM_OFFSET; - ISA_DMA_THRESHOLD = 0x00ffffff; - DMA_MODE_READ = 0x44; - DMA_MODE_WRITE = 0x48; - - /* figure out what kind of prep workstation we are */ -#ifdef CONFIG_PREP_RESIDUAL - if ( res->ResidualLength != 0 ) - { - if ( !strncmp(res->VitalProductData.PrintableModel,"IBM",3) ) - _prep_type = _PREP_IBM; - else - _prep_type = _PREP_Motorola; - } - else /* assume motorola if no residual (netboot?) */ -#endif - { - _prep_type = _PREP_Motorola; - } - - ppc_md.setup_arch = prep_setup_arch; - ppc_md.show_percpuinfo = prep_show_percpuinfo; - ppc_md.show_cpuinfo = prep_show_cpuinfo; - ppc_md.irq_cannonicalize = prep_irq_cannonicalize; - ppc_md.init_IRQ = prep_init_IRQ; - /* this gets changed later on if we have an OpenPIC -- Cort */ - ppc_md.get_irq = prep_get_irq; - ppc_md.init = prep_init2; - - ppc_md.restart = prep_restart; - ppc_md.power_off = prep_power_off; - ppc_md.halt = prep_halt; - - ppc_md.time_init = NULL; - if (_prep_type == _PREP_IBM) { - ppc_md.set_rtc_time = mc146818_set_rtc_time; - ppc_md.get_rtc_time = mc146818_get_rtc_time; - ppc_md.calibrate_decr = prep_calibrate_decr; - } else { - ppc_md.set_rtc_time = mk48t59_set_rtc_time; - ppc_md.get_rtc_time = mk48t59_get_rtc_time; - ppc_md.calibrate_decr = mk48t59_calibrate_decr; - ppc_md.time_init = mk48t59_init; - } - - ppc_md.find_end_of_memory = prep_find_end_of_memory; - ppc_md.setup_io_mappings = prep_map_io; - -#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) - ppc_ide_md.default_irq = prep_ide_default_irq; - ppc_ide_md.default_io_base = prep_ide_default_io_base; - ppc_ide_md.ide_check_region = prep_ide_check_region; - ppc_ide_md.ide_request_region = prep_ide_request_region; - ppc_ide_md.ide_release_region = prep_ide_release_region; - ppc_ide_md.ide_init_hwif = prep_ide_init_hwif_ports; -#endif - -#ifdef CONFIG_VT - ppc_md.kbd_setkeycode = pckbd_setkeycode; - ppc_md.kbd_getkeycode = pckbd_getkeycode; - ppc_md.kbd_translate = pckbd_translate; - ppc_md.kbd_unexpected_up = pckbd_unexpected_up; - ppc_md.kbd_leds = pckbd_leds; - ppc_md.kbd_init_hw = pckbd_init_hw; -#ifdef CONFIG_MAGIC_SYSRQ - ppc_md.ppc_kbd_sysrq_xlate = pckbd_sysrq_xlate; - SYSRQ_KEY = 0x54; -#endif -#endif - -#ifdef CONFIG_SMP - ppc_md.smp_ops = &prep_smp_ops; -#endif /* CONFIG_SMP */ -} |