patch-2.4.20 linux-2.4.20/arch/ppc/kernel/chrp_setup.c
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- Lines: 635
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
linux-2.4.19/arch/ppc/kernel/chrp_setup.c
- Orig date:
Fri Aug 2 17:39:43 2002
diff -urN linux-2.4.19/arch/ppc/kernel/chrp_setup.c linux-2.4.20/arch/ppc/kernel/chrp_setup.c
@@ -1,634 +0,0 @@
-/*
- * BK Id: SCCS/s.chrp_setup.c 1.42 04/09/02 21:43:09 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)
- */
-
-/*
- * bootup setup stuff..
- */
-
-#include <linux/config.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/pci.h>
-#include <linux/version.h>
-#include <linux/adb.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/ide.h>
-#include <linux/seq_file.h>
-
-#include <asm/mmu.h>
-#include <asm/processor.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/prom.h>
-#include <asm/gg2.h>
-#include <asm/pci-bridge.h>
-#include <asm/dma.h>
-#include <asm/machdep.h>
-#include <asm/irq.h>
-#include <asm/hydra.h>
-#include <asm/keyboard.h>
-#include <asm/sections.h>
-#include <asm/time.h>
-#include <asm/btext.h>
-
-#include "local_irq.h"
-#include "i8259.h"
-#include "open_pic.h"
-#include "xics.h"
-
-unsigned long chrp_get_rtc_time(void);
-int chrp_set_rtc_time(unsigned long nowtime);
-void chrp_calibrate_decr(void);
-long chrp_time_init(void);
-
-void chrp_find_bridges(void);
-void chrp_event_scan(void);
-void rtas_display_progress(char *, unsigned short);
-void rtas_indicator_progress(char *, unsigned short);
-void btext_progress(char *, unsigned short);
-
-extern unsigned long pmac_find_end_of_memory(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[128];
-extern void select_adb_keyboard(void);
-extern int of_show_percpuinfo(struct seq_file *, int);
-
-extern kdev_t boot_dev;
-
-extern PTE *Hash, *Hash_end;
-extern unsigned long Hash_size, Hash_mask;
-extern int probingmem;
-extern unsigned long loops_per_jiffy;
-static int max_width;
-
-#ifdef CONFIG_SMP
-extern struct smp_ops_t chrp_smp_ops;
-extern struct smp_ops_t xics_smp_ops;
-#endif
-
-static const char *gg2_memtypes[4] = {
- "FPM", "SDRAM", "EDO", "BEDO"
-};
-static const char *gg2_cachesizes[4] = {
- "256 KB", "512 KB", "1 MB", "Reserved"
-};
-static const char *gg2_cachetypes[4] = {
- "Asynchronous", "Reserved", "Flow-Through Synchronous",
- "Pipelined Synchronous"
-};
-static const char *gg2_cachemodes[4] = {
- "Disabled", "Write-Through", "Copy-Back", "Transparent Mode"
-};
-
-int __chrp
-chrp_show_cpuinfo(struct seq_file *m)
-{
- int i, sdramen;
- unsigned int t;
- struct device_node *root;
- const char *model = "";
-
- root = find_path_device("/");
- if (root)
- model = get_property(root, "model", NULL);
- seq_printf(m, "machine\t\t: CHRP %s\n", model);
-
- /* longtrail (goldengate) stuff */
- if (!strncmp(model, "IBM,LongTrail", 13)) {
- /* VLSI VAS96011/12 `Golden Gate 2' */
- /* Memory banks */
- sdramen = (in_le32((unsigned *)(GG2_PCI_CONFIG_BASE+
- GG2_PCI_DRAM_CTRL))
- >>31) & 1;
- for (i = 0; i < (sdramen ? 4 : 6); i++) {
- t = in_le32((unsigned *)(GG2_PCI_CONFIG_BASE+
- GG2_PCI_DRAM_BANK0+
- i*4));
- if (!(t & 1))
- continue;
- switch ((t>>8) & 0x1f) {
- case 0x1f:
- model = "4 MB";
- break;
- case 0x1e:
- model = "8 MB";
- break;
- case 0x1c:
- model = "16 MB";
- break;
- case 0x18:
- model = "32 MB";
- break;
- case 0x10:
- model = "64 MB";
- break;
- case 0x00:
- model = "128 MB";
- break;
- default:
- model = "Reserved";
- break;
- }
- seq_printf(m, "memory bank %d\t: %s %s\n", i, model,
- gg2_memtypes[sdramen ? 1 : ((t>>1) & 3)]);
- }
- /* L2 cache */
- t = in_le32((unsigned *)(GG2_PCI_CONFIG_BASE+GG2_PCI_CC_CTRL));
- seq_printf(m, "board l2\t: %s %s (%s)\n",
- gg2_cachesizes[(t>>7) & 3],
- gg2_cachetypes[(t>>2) & 3],
- gg2_cachemodes[t & 3]);
- }
- return 0;
-}
-
-/*
- * Fixes for the National Semiconductor PC78308VUL SuperI/O
- *
- * Some versions of Open Firmware incorrectly initialize the IRQ settings
- * for keyboard and mouse
- */
-static inline void __init sio_write(u8 val, u8 index)
-{
- outb(index, 0x15c);
- outb(val, 0x15d);
-}
-
-static inline u8 __init sio_read(u8 index)
-{
- outb(index, 0x15c);
- return inb(0x15d);
-}
-
-static void __init sio_fixup_irq(const char *name, u8 device, u8 level,
- u8 type)
-{
- u8 level0, type0, active;
-
- /* select logical device */
- sio_write(device, 0x07);
- active = sio_read(0x30);
- level0 = sio_read(0x70);
- type0 = sio_read(0x71);
- if (level0 != level || type0 != type || !active) {
- printk(KERN_WARNING "sio: %s irq level %d, type %d, %sactive: "
- "remapping to level %d, type %d, active\n",
- name, level0, type0, !active ? "in" : "", level, type);
- sio_write(0x01, 0x30);
- sio_write(level, 0x70);
- sio_write(type, 0x71);
- }
-}
-
-static void __init sio_init(void)
-{
- struct device_node *root;
-
- if ((root = find_path_device("/")) &&
- !strncmp(get_property(root, "model", NULL), "IBM,LongTrail", 13)) {
- /* logical device 0 (KBC/Keyboard) */
- sio_fixup_irq("keyboard", 0, 1, 2);
- /* select logical device 1 (KBC/Mouse) */
- sio_fixup_irq("mouse", 1, 12, 2);
- }
-}
-
-
-void __init
-chrp_setup_arch(void)
-{
- struct device_node *device;
-
- /* init to some ~sane value until calibrate_delay() runs */
- loops_per_jiffy = 50000000/HZ;
-
-#ifdef CONFIG_BLK_DEV_INITRD
- /* this is fine for chrp */
- initrd_below_start_ok = 1;
-
- if (initrd_start)
- ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0);
- else
-#endif
- ROOT_DEV = to_kdev_t(0x0802); /* sda2 (sda1 is for the kernel) */
-
- /* Lookup PCI host bridges */
- chrp_find_bridges();
-
-#ifndef CONFIG_PPC64BRIDGE
- /*
- * Temporary fixes for PCI devices.
- * -- Geert
- */
- hydra_init(); /* Mac I/O */
-
-#endif /* CONFIG_PPC64BRIDGE */
-
- /* Some IBM machines don't have the hydra -- Cort */
- if (!OpenPIC_Addr) {
- struct device_node *root;
- unsigned long *opprop;
- int n;
-
- root = find_path_device("/");
- opprop = (unsigned long *) get_property
- (root, "platform-open-pic", NULL);
- n = prom_n_addr_cells(root);
- if (opprop != 0) {
- printk("OpenPIC addrs: %lx %lx %lx\n",
- opprop[n-1], opprop[2*n-1], opprop[3*n-1]);
- OpenPIC_Addr = ioremap(opprop[n-1], 0x40000);
- }
- }
-
- /*
- * Fix the Super I/O configuration
- */
- sio_init();
-
- /*
- * Setup the console operations
- */
-#ifdef CONFIG_DUMMY_CONSOLE
- conswitchp = &dummy_con;
-#endif
-
- /* Get the event scan rate for the rtas so we know how
- * often it expects a heartbeat. -- Cort
- */
- if ( rtas_data ) {
- struct property *p;
- device = find_devices("rtas");
- for ( p = device->properties;
- p && strncmp(p->name, "rtas-event-scan-rate", 20);
- p = p->next )
- /* nothing */ ;
- if ( p && *(unsigned long *)p->value ) {
- ppc_md.heartbeat = chrp_event_scan;
- ppc_md.heartbeat_reset = (HZ/(*(unsigned long *)p->value)*30)-1;
- ppc_md.heartbeat_count = 1;
- printk("RTAS Event Scan Rate: %lu (%lu jiffies)\n",
- *(unsigned long *)p->value, ppc_md.heartbeat_reset );
- }
- }
-}
-
-void __chrp
-chrp_event_scan(void)
-{
- unsigned char log[1024];
- unsigned long ret = 0;
- /* XXX: we should loop until the hardware says no more error logs -- Cort */
- call_rtas( "event-scan", 4, 1, &ret, 0xffffffff, 0,
- __pa(log), 1024 );
- ppc_md.heartbeat_count = ppc_md.heartbeat_reset;
-}
-
-void __chrp
-chrp_restart(char *cmd)
-{
- printk("RTAS system-reboot returned %d\n",
- call_rtas("system-reboot", 0, 1, NULL));
- for (;;);
-}
-
-void __chrp
-chrp_power_off(void)
-{
- /* allow power on only with power button press */
- printk("RTAS power-off returned %d\n",
- call_rtas("power-off", 2, 1, NULL,0xffffffff,0xffffffff));
- for (;;);
-}
-
-void __chrp
-chrp_halt(void)
-{
- chrp_power_off();
-}
-
-u_int __chrp
-chrp_irq_cannonicalize(u_int irq)
-{
- if (irq == 2)
- return 9;
- return irq;
-}
-
-void __init chrp_init_IRQ(void)
-{
- struct device_node *np;
- int i;
- unsigned int *addrp;
- unsigned char* chrp_int_ack_special = 0;
- unsigned char init_senses[NR_IRQS - NUM_8259_INTERRUPTS];
- int nmi_irq = -1;
-#if defined(CONFIG_VT) && defined(CONFIG_ADB_KEYBOARD) && defined(XMON)
- struct device_node *kbd;
-#endif
-
- if (!(np = find_devices("pci"))
- || !(addrp = (unsigned int *)
- get_property(np, "8259-interrupt-acknowledge", NULL)))
- printk("Cannot find pci to get ack address\n");
- else
- chrp_int_ack_special = (unsigned char *)
- ioremap(addrp[prom_n_addr_cells(np)-1], 1);
- /* hydra still sets OpenPIC_InitSenses to a static set of values */
- if (OpenPIC_InitSenses == NULL) {
- prom_get_irq_senses(init_senses, NUM_8259_INTERRUPTS, NR_IRQS);
- OpenPIC_InitSenses = init_senses;
- OpenPIC_NumInitSenses = NR_IRQS - NUM_8259_INTERRUPTS;
- }
- openpic_init(1, NUM_8259_INTERRUPTS, chrp_int_ack_special, nmi_irq);
- for ( i = 0 ; i < NUM_8259_INTERRUPTS ; i++ )
- irq_desc[i].handler = &i8259_pic;
- i8259_init(0);
-#if defined(CONFIG_VT) && defined(CONFIG_ADB_KEYBOARD) && defined(XMON)
- /* see if there is a keyboard in the device tree
- with a parent of type "adb" */
- for (kbd = find_devices("keyboard"); kbd; kbd = kbd->next)
- if (kbd->parent && kbd->parent->type
- && strcmp(kbd->parent->type, "adb") == 0)
- break;
- if (kbd)
- request_irq( HYDRA_INT_ADB_NMI, xmon_irq, 0, "XMON break", 0);
-#endif
-}
-
-void __init
-chrp_init2(void)
-{
-#ifdef CONFIG_NVRAM
- pmac_nvram_init();
-#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");
-
- if (ppc_md.progress)
- ppc_md.progress(" Have fun! ", 0x7777);
-
-#if defined(CONFIG_VT) && (defined(CONFIG_ADB_KEYBOARD) || defined(CONFIG_INPUT))
- /* see if there is a keyboard in the device tree
- with a parent of type "adb" */
- {
- struct device_node *kbd;
-
- for (kbd = find_devices("keyboard"); kbd; kbd = kbd->next) {
- if (kbd->parent && kbd->parent->type
- && strcmp(kbd->parent->type, "adb") == 0) {
- select_adb_keyboard();
- break;
- }
- }
- }
-#endif /* CONFIG_VT && (CONFIG_ADB_KEYBOARD || CONFIG_INPUT) */
-}
-
-#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
-/*
- * IDE stuff.
- */
-
-static int __chrp
-chrp_ide_check_region(ide_ioreg_t from, unsigned int extent)
-{
- return check_region(from, extent);
-}
-
-static void __chrp
-chrp_ide_request_region(ide_ioreg_t from,
- unsigned int extent,
- const char *name)
-{
- request_region(from, extent, name);
-}
-
-static void __chrp
-chrp_ide_release_region(ide_ioreg_t from,
- unsigned int extent)
-{
- release_region(from, extent);
-}
-
-static void __chrp
-chrp_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;
- }
- hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
-}
-#endif
-
-/*
- * One of the main thing these mappings are needed for is so that
- * xmon can get to the serial port early on. We probably should
- * handle the machines with the mpc106 as well as the python (F50)
- * and the GG2 (longtrail). Actually we should look in the device
- * tree and do the right thing.
- */
-static void __init
-chrp_map_io(void)
-{
- char *name;
-
- /*
- * The code below tends to get removed, please don't take it out.
- * The F50 needs this mapping and it you take it out I'll track you
- * down and slap your hands. If it causes problems please email me.
- * -- Cort <cort@fsmlabs.com>
- */
- name = get_property(find_path_device("/"), "name", NULL);
- if (name && strncmp(name, "IBM-70", 6) == 0
- && strstr(name, "-F50")) {
- io_block_mapping(0x80000000, 0x80000000, 0x10000000, _PAGE_IO);
- io_block_mapping(0x90000000, 0x90000000, 0x10000000, _PAGE_IO);
- return;
- } else {
- io_block_mapping(0xf8000000, 0xf8000000, 0x04000000, _PAGE_IO);
- }
-}
-
-void __init
-chrp_init(unsigned long r3, unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7)
-{
-#ifdef CONFIG_BLK_DEV_INITRD
- /* take care of initrd if we have one */
- if ( r6 )
- {
- initrd_start = r6 + KERNELBASE;
- initrd_end = r6 + r7 + KERNELBASE;
- }
-#endif /* CONFIG_BLK_DEV_INITRD */
-
- ISA_DMA_THRESHOLD = ~0L;
- DMA_MODE_READ = 0x44;
- DMA_MODE_WRITE = 0x48;
- isa_io_base = CHRP_ISA_IO_BASE; /* default value */
-
- ppc_md.setup_arch = chrp_setup_arch;
- ppc_md.show_percpuinfo = of_show_percpuinfo;
- ppc_md.show_cpuinfo = chrp_show_cpuinfo;
- ppc_md.irq_cannonicalize = chrp_irq_cannonicalize;
-#ifndef CONFIG_POWER4
- ppc_md.init_IRQ = chrp_init_IRQ;
- ppc_md.get_irq = openpic_get_irq;
-#else
- ppc_md.init_IRQ = xics_init_IRQ;
- ppc_md.get_irq = xics_get_irq;
-#endif /* CONFIG_POWER4 */
-
- ppc_md.init = chrp_init2;
-
- ppc_md.restart = chrp_restart;
- ppc_md.power_off = chrp_power_off;
- ppc_md.halt = chrp_halt;
-
- ppc_md.time_init = chrp_time_init;
- ppc_md.set_rtc_time = chrp_set_rtc_time;
- ppc_md.get_rtc_time = chrp_get_rtc_time;
- ppc_md.calibrate_decr = chrp_calibrate_decr;
-
- ppc_md.find_end_of_memory = pmac_find_end_of_memory;
- ppc_md.setup_io_mappings = chrp_map_io;
-
-#ifdef CONFIG_VT
- /* these are adjusted in chrp_init2 if we have an ADB keyboard */
- 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 /* CONFIG_MAGIC_SYSRQ */
-#endif /* CONFIG_VT */
-
- if (rtas_data) {
- struct device_node *rtas;
- unsigned int *p;
-
- rtas = find_devices("rtas");
- if (rtas != NULL) {
- if (get_property(rtas, "display-character", NULL)) {
- ppc_md.progress = rtas_display_progress;
- p = (unsigned int *) get_property
- (rtas, "ibm,display-line-length", NULL);
- if (p)
- max_width = *p;
- } else if (get_property(rtas, "set-indicator", NULL))
- ppc_md.progress = rtas_indicator_progress;
- }
- }
-#ifdef CONFIG_BOOTX_TEXT
- if (ppc_md.progress == NULL && boot_text_mapped)
- ppc_md.progress = btext_progress;
-#endif
-
-#ifdef CONFIG_SMP
-#ifndef CONFIG_POWER4
- ppc_md.smp_ops = &chrp_smp_ops;
-#else
- ppc_md.smp_ops = &xics_smp_ops;
-#endif /* CONFIG_POWER4 */
-#endif /* CONFIG_SMP */
-
-#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
- ppc_ide_md.ide_check_region = chrp_ide_check_region;
- ppc_ide_md.ide_request_region = chrp_ide_request_region;
- ppc_ide_md.ide_release_region = chrp_ide_release_region;
- ppc_ide_md.ide_init_hwif = chrp_ide_init_hwif_ports;
-#endif
-
- /*
- * Print the banner, then scroll down so boot progress
- * can be printed. -- Cort
- */
- if ( ppc_md.progress ) ppc_md.progress("Linux/PPC "UTS_RELEASE"\n", 0x0);
-}
-
-void __chrp
-rtas_display_progress(char *s, unsigned short hex)
-{
- int width;
- char *os = s;
-
- if ( call_rtas( "display-character", 1, 1, NULL, '\r' ) )
- return;
-
- width = max_width;
- while ( *os )
- {
- if ( (*os == '\n') || (*os == '\r') )
- width = max_width;
- else
- width--;
- call_rtas( "display-character", 1, 1, NULL, *os++ );
- /* if we overwrite the screen length */
- if ( width == 0 )
- while ( (*os != 0) && (*os != '\n') && (*os != '\r') )
- os++;
- }
-
- /*while ( width-- > 0 )*/
- call_rtas( "display-character", 1, 1, NULL, ' ' );
-}
-
-void __chrp
-rtas_indicator_progress(char *s, unsigned short hex)
-{
- call_rtas("set-indicator", 3, 1, NULL, 6, 0, hex);
-}
-
-#ifdef CONFIG_BOOTX_TEXT
-void
-btext_progress(char *s, unsigned short hex)
-{
- prom_print(s);
- prom_print("\n");
-}
-#endif /* CONFIG_BOOTX_TEXT */
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