/*
- * Common prep/pmac/chrp boot and setup code.
+ * Common prep boot and setup code.
*/
#include <linux/config.h>
#include <asm/machdep.h>
#include <asm/uaccess.h>
#include <asm/system.h>
-#include <asm/pmac_feature.h>
#include <asm/sections.h>
#include <asm/nvram.h>
#include <asm/xmon.h>
#include <asm/ocp.h>
-#if defined(CONFIG_85xx) || defined(CONFIG_83xx)
+#define USES_PPC_SYS (defined(CONFIG_85xx) || defined(CONFIG_83xx) || \
+ defined(CONFIG_MPC10X_BRIDGE) || defined(CONFIG_8260) || \
+ defined(CONFIG_PPC_MPC52xx))
+
+#if USES_PPC_SYS
#include <asm/ppc_sys.h>
#endif
extern void platform_init(unsigned long r3, unsigned long r4,
unsigned long r5, unsigned long r6, unsigned long r7);
-extern void bootx_init(unsigned long r4, unsigned long phys);
extern void identify_cpu(unsigned long offset, unsigned long cpu);
extern void do_cpu_ftr_fixups(unsigned long offset);
extern void reloc_got2(unsigned long offset);
extern boot_infos_t *boot_infos;
struct ide_machdep_calls ppc_ide_md;
-char *sysmap;
-unsigned long sysmap_size;
/* Used with the BI_MEMSIZE bootinfo parameter to store the memory
size value reported by the boot loader. */
unsigned long boot_mem_size;
unsigned long ISA_DMA_THRESHOLD;
-unsigned long DMA_MODE_READ, DMA_MODE_WRITE;
-
-#ifdef CONFIG_PPC_MULTIPLATFORM
-int _machine = 0;
+unsigned int DMA_MODE_READ;
+unsigned int DMA_MODE_WRITE;
+#ifdef CONFIG_PPC_PREP
extern void prep_init(unsigned long r3, unsigned long r4,
unsigned long r5, unsigned long r6, unsigned long r7);
-extern void pmac_init(unsigned long r3, unsigned long r4,
- unsigned long r5, unsigned long r6, unsigned long r7);
-extern void chrp_init(unsigned long r3, unsigned long r4,
- unsigned long r5, unsigned long r6, unsigned long r7);
-#endif /* CONFIG_PPC_MULTIPLATFORM */
+
+dev_t boot_dev;
+#endif /* CONFIG_PPC_PREP */
+
+int have_of;
+EXPORT_SYMBOL(have_of);
+
+#ifdef __DO_IRQ_CANON
+int ppc_do_canonicalize_irqs;
+EXPORT_SYMBOL(ppc_do_canonicalize_irqs);
+#endif
#ifdef CONFIG_MAGIC_SYSRQ
unsigned long SYSRQ_KEY = 0x54;
ppc_md.restart(cmd);
}
-EXPORT_SYMBOL(machine_restart);
-
void machine_power_off(void)
{
#ifdef CONFIG_NVRAM
ppc_md.power_off();
}
-EXPORT_SYMBOL(machine_power_off);
-
void machine_halt(void)
{
#ifdef CONFIG_NVRAM
ppc_md.halt();
}
-EXPORT_SYMBOL(machine_halt);
-
void (*pm_power_off)(void) = machine_power_off;
#ifdef CONFIG_TAU
/* Show summary information */
#ifdef CONFIG_SMP
unsigned long bogosum = 0;
- for (i = 0; i < NR_CPUS; ++i)
- if (cpu_online(i))
- bogosum += cpu_data[i].loops_per_jiffy;
+ for_each_online_cpu(i)
+ bogosum += cpu_data[i].loops_per_jiffy;
seq_printf(m, "total bogomips\t: %lu.%02lu\n",
bogosum/(500000/HZ), bogosum/(5000/HZ) % 100);
#endif /* CONFIG_SMP */
seq_printf(m, "processor\t: %d\n", i);
seq_printf(m, "cpu\t\t: ");
- if (cur_cpu_spec[i]->pvr_mask)
- seq_printf(m, "%s", cur_cpu_spec[i]->cpu_name);
+ if (cur_cpu_spec->pvr_mask)
+ seq_printf(m, "%s", cur_cpu_spec->cpu_name);
else
seq_printf(m, "unknown (%08x)", pvr);
#ifdef CONFIG_ALTIVEC
- if (cur_cpu_spec[i]->cpu_features & CPU_FTR_ALTIVEC)
+ if (cur_cpu_spec->cpu_features & CPU_FTR_ALTIVEC)
seq_printf(m, ", altivec supported");
#endif
seq_printf(m, "\n");
#ifdef CONFIG_TAU
- if (cur_cpu_spec[i]->cpu_features & CPU_FTR_TAU) {
+ if (cur_cpu_spec->cpu_features & CPU_FTR_TAU) {
#ifdef CONFIG_TAU_AVERAGE
/* more straightforward, but potentially misleading */
seq_printf(m, "temperature \t: %u C (uncalibrated)\n",
seq_printf(m, "bogomips\t: %lu.%02lu\n",
lpj / (500000/HZ), (lpj / (5000/HZ)) % 100);
-#if defined(CONFIG_85xx) || defined(CONFIG_83xx)
+#if USES_PPC_SYS
if (cur_ppc_sys_spec->ppc_sys_name)
seq_printf(m, "chipset\t\t: %s\n",
cur_ppc_sys_spec->ppc_sys_name);
identify_cpu(offset, 0);
do_cpu_ftr_fixups(offset);
-#if defined(CONFIG_PPC_MULTIPLATFORM)
- reloc_got2(offset);
-
- /* If we came here from BootX, clear the screen,
- * set up some pointers and return. */
- if ((r3 == 0x426f6f58) && (r5 == 0))
- bootx_init(r4, phys);
-
- /*
- * don't do anything on prep
- * for now, don't use bootinfo because it breaks yaboot 0.5
- * and assume that if we didn't find a magic number, we have OF
- */
- else if (*(unsigned long *)(0) != 0xdeadc0de)
- phys = prom_init(r3, r4, (prom_entry)r5);
-
- reloc_got2(-offset);
-#endif
-
return phys;
}
-#ifdef CONFIG_PPC_OF
-/*
- * Assume here that all clock rates are the same in a
- * smp system. -- Cort
- */
-int __openfirmware
-of_show_percpuinfo(struct seq_file *m, int i)
-{
- struct device_node *cpu_node;
- u32 *fp;
- int s;
-
- cpu_node = find_type_devices("cpu");
- if (!cpu_node)
- return 0;
- for (s = 0; s < i && cpu_node->next; s++)
- cpu_node = cpu_node->next;
- fp = (u32 *)get_property(cpu_node, "clock-frequency", NULL);
- if (fp)
- seq_printf(m, "clock\t\t: %dMHz\n", *fp / 1000000);
- return 0;
-}
-
-void __init
-intuit_machine_type(void)
-{
- char *model;
- struct device_node *root;
-
- /* ask the OF info if we're a chrp or pmac */
- root = find_path_device("/");
- if (root != 0) {
- /* assume pmac unless proven to be chrp -- Cort */
- _machine = _MACH_Pmac;
- model = get_property(root, "device_type", NULL);
- if (model && !strncmp("chrp", model, 4))
- _machine = _MACH_chrp;
- else {
- model = get_property(root, "model", NULL);
- if (model && !strncmp(model, "IBM", 3))
- _machine = _MACH_chrp;
- }
- }
-}
-#endif
-
-#ifdef CONFIG_PPC_MULTIPLATFORM
+#ifdef CONFIG_PPC_PREP
/*
- * The PPC_MULTIPLATFORM version of platform_init...
+ * The PPC_PREP version of platform_init...
*/
void __init
platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
parse_bootinfo(find_bootinfo());
- /* if we didn't get any bootinfo telling us what we are... */
- if (_machine == 0) {
- /* prep boot loader tells us if we're prep or not */
- if ( *(unsigned long *)(KERNELBASE) == (0xdeadc0de) )
- _machine = _MACH_prep;
- }
-
- /* not much more to do here, if prep */
- if (_machine == _MACH_prep) {
- prep_init(r3, r4, r5, r6, r7);
- return;
- }
-
- /* prom_init has already been called from __start */
- if (boot_infos)
- relocate_nodes();
-
- /* If we aren't PReP, we can find out if we're Pmac
- * or CHRP with this. */
- if (_machine == 0)
- intuit_machine_type();
-
- /* finish_device_tree may need _machine defined. */
- finish_device_tree();
-
- /*
- * If we were booted via quik, r3 points to the physical
- * address of the command-line parameters.
- * If we were booted from an xcoff image (i.e. netbooted or
- * booted from floppy), we get the command line from the
- * bootargs property of the /chosen node.
- * If an initial ramdisk is present, r3 and r4
- * are used for initrd_start and initrd_size,
- * otherwise they contain 0xdeadbeef.
- */
- if (r3 >= 0x4000 && r3 < 0x800000 && r4 == 0) {
- strlcpy(cmd_line, (char *)r3 + KERNELBASE,
- sizeof(cmd_line));
- } else if (boot_infos != 0) {
- /* booted by BootX - check for ramdisk */
- if (boot_infos->kernelParamsOffset != 0)
- strlcpy(cmd_line, (char *) boot_infos
- + boot_infos->kernelParamsOffset,
- sizeof(cmd_line));
-#ifdef CONFIG_BLK_DEV_INITRD
- if (boot_infos->ramDisk) {
- initrd_start = (unsigned long) boot_infos
- + boot_infos->ramDisk;
- initrd_end = initrd_start + boot_infos->ramDiskSize;
- initrd_below_start_ok = 1;
- }
-#endif
- } else {
- struct device_node *chosen;
- char *p;
-
-#ifdef CONFIG_BLK_DEV_INITRD
- if (r3 && r4 && r4 != 0xdeadbeef) {
- if (r3 < KERNELBASE)
- r3 += KERNELBASE;
- initrd_start = r3;
- initrd_end = r3 + r4;
- ROOT_DEV = Root_RAM0;
- initrd_below_start_ok = 1;
- }
-#endif
- chosen = find_devices("chosen");
- if (chosen != NULL) {
- p = get_property(chosen, "bootargs", NULL);
- if (p && *p) {
- strlcpy(cmd_line, p, sizeof(cmd_line));
- }
- }
- }
-#ifdef CONFIG_ADB
- if (strstr(cmd_line, "adb_sync")) {
- extern int __adb_probe_sync;
- __adb_probe_sync = 1;
- }
-#endif /* CONFIG_ADB */
-
- switch (_machine) {
- case _MACH_Pmac:
- pmac_init(r3, r4, r5, r6, r7);
- break;
- case _MACH_chrp:
- chrp_init(r3, r4, r5, r6, r7);
- break;
- }
+ prep_init(r3, r4, r5, r6, r7);
}
-
-#ifdef CONFIG_SERIAL_CORE_CONSOLE
-extern char *of_stdout_device;
-
-static int __init set_preferred_console(void)
-{
- struct device_node *prom_stdout;
- char *name;
- int offset = 0;
-
- if (of_stdout_device == NULL)
- return -ENODEV;
-
- /* The user has requested a console so this is already set up. */
- if (strstr(saved_command_line, "console="))
- return -EBUSY;
-
- prom_stdout = find_path_device(of_stdout_device);
- if (!prom_stdout)
- return -ENODEV;
-
- name = (char *)get_property(prom_stdout, "name", NULL);
- if (!name)
- return -ENODEV;
-
- if (strcmp(name, "serial") == 0) {
- int i;
- u32 *reg = (u32 *)get_property(prom_stdout, "reg", &i);
- if (i > 8) {
- switch (reg[1]) {
- case 0x3f8:
- offset = 0;
- break;
- case 0x2f8:
- offset = 1;
- break;
- case 0x898:
- offset = 2;
- break;
- case 0x890:
- offset = 3;
- break;
- default:
- /* We dont recognise the serial port */
- return -ENODEV;
- }
- }
- } else if (strcmp(name, "ch-a") == 0)
- offset = 0;
- else if (strcmp(name, "ch-b") == 0)
- offset = 1;
- else
- return -ENODEV;
- return add_preferred_console("ttyS", offset, NULL);
-}
-console_initcall(set_preferred_console);
-#endif /* CONFIG_SERIAL_CORE_CONSOLE */
-#endif /* CONFIG_PPC_MULTIPLATFORM */
+#endif /* CONFIG_PPC_PREP */
struct bi_record *find_bootinfo(void)
{
case BI_CMD_LINE:
strlcpy(cmd_line, (void *)data, sizeof(cmd_line));
break;
- case BI_SYSMAP:
- sysmap = (char *)((data[0] >= (KERNELBASE)) ? data[0] :
- (data[0]+KERNELBASE));
- sysmap_size = data[1];
- break;
#ifdef CONFIG_BLK_DEV_INITRD
case BI_INITRD:
initrd_start = data[0] + KERNELBASE;
initrd_end = data[0] + data[1] + KERNELBASE;
break;
#endif /* CONFIG_BLK_DEV_INITRD */
-#ifdef CONFIG_PPC_MULTIPLATFORM
- case BI_MACHTYPE:
- _machine = data[0];
- break;
-#endif
case BI_MEMSIZE:
boot_mem_size = data[0];
break;
#ifdef CONFIG_6xx
ppc_md.power_save = ppc6xx_idle;
#endif
-#ifdef CONFIG_POWER4
- ppc_md.power_save = power4_idle;
-#endif
platform_init(r3, r4, r5, r6, r7);
if (ppc_md.progress)
ppc_md.progress("id mach(): done", 0x200);
}
+#ifdef CONFIG_BOOKE_WDT
+/* Checks wdt=x and wdt_period=xx command-line option */
+int __init early_parse_wdt(char *p)
+{
+ if (p && strncmp(p, "0", 1) != 0)
+ booke_wdt_enabled = 1;
+
+ return 0;
+}
+early_param("wdt", early_parse_wdt);
+
+int __init early_parse_wdt_period (char *p)
+{
+ if (p)
+ booke_wdt_period = simple_strtoul(p, NULL, 0);
+
+ return 0;
+}
+early_param("wdt_period", early_parse_wdt_period);
+#endif /* CONFIG_BOOKE_WDT */
/* Checks "l2cr=xxxx" command-line option */
int __init ppc_setup_l2cr(char *str)
if ( ppc_md.progress ) ppc_md.progress(" ", 0xffff);
/* register CPU devices */
- for (i = 0; i < NR_CPUS; i++)
- if (cpu_possible(i))
- register_cpu(&cpu_devices[i], i, NULL);
+ for_each_possible_cpu(i)
+ register_cpu(&cpu_devices[i], i, NULL);
/* call platform init */
if (ppc_md.init != NULL) {
/* so udelay does something sensible, assume <= 1000 bogomips */
loops_per_jiffy = 500000000 / HZ;
-#ifdef CONFIG_PPC_MULTIPLATFORM
- /* This could be called "early setup arch", it must be done
- * now because xmon need it
- */
- if (_machine == _MACH_Pmac)
- pmac_feature_init(); /* New cool way */
-#endif
+ if (ppc_md.init_early)
+ ppc_md.init_early();
#ifdef CONFIG_XMON
- xmon_map_scc();
+ xmon_init(1);
if (strstr(cmd_line, "xmon"))
xmon(NULL);
#endif /* CONFIG_XMON */
* for a possibly more accurate value.
*/
if (cpu_has_feature(CPU_FTR_SPLIT_ID_CACHE)) {
- dcache_bsize = cur_cpu_spec[0]->dcache_bsize;
- icache_bsize = cur_cpu_spec[0]->icache_bsize;
+ dcache_bsize = cur_cpu_spec->dcache_bsize;
+ icache_bsize = cur_cpu_spec->icache_bsize;
ucache_bsize = 0;
} else
ucache_bsize = dcache_bsize = icache_bsize
- = cur_cpu_spec[0]->dcache_bsize;
+ = cur_cpu_spec->dcache_bsize;
/* reboot on panic */
panic_timeout = 180;
if ( ppc_md.progress ) ppc_md.progress("arch: exit", 0x3eab);
paging_init();
-
- /* this is for modules since _machine can be a define -- Cort */
- ppc_md.ppc_machine = _machine;
}
git://git.onelab.eu / linux-2.6.git / blobdiff