X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fppc%2Fkernel%2Fsetup.c;h=3c506af1988085393265aeb5a30c6755b7ce220a;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=18a2f147d412efbf4e1ea46c539fdc69fb406c9a;hpb=9213980e6a70d8473e0ffd4b39ab5b6caaba9ff5;p=linux-2.6.git diff --git a/arch/ppc/kernel/setup.c b/arch/ppc/kernel/setup.c index 18a2f147d..3c506af19 100644 --- a/arch/ppc/kernel/setup.c +++ b/arch/ppc/kernel/setup.c @@ -1,21 +1,22 @@ /* - * Common prep/pmac/chrp boot and setup code. + * Common prep boot and setup code. */ -#include #include #include #include #include +#include #include #include #include #include -#include +#include #include #include #include #include +#include #include #include @@ -33,11 +34,19 @@ #include #include #include -#include #include #include #include #include +#include + +#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 +#endif #if defined CONFIG_KGDB #include @@ -45,42 +54,36 @@ 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 void ppc6xx_idle(void); extern void power4_idle(void); extern boot_infos_t *boot_infos; -char saved_command_line[COMMAND_LINE_SIZE]; -unsigned char aux_device_present; 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 */ -#ifdef CONFIG_MAGIC_SYSRQ -unsigned long SYSRQ_KEY = 0x54; -#endif /* CONFIG_MAGIC_SYSRQ */ +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_VGA_CONSOLE unsigned long vgacon_remap_base; @@ -119,18 +122,11 @@ void machine_restart(char *cmd) ppc_md.restart(cmd); } -EXPORT_SYMBOL(machine_restart); - -void machine_power_off(void) +static void ppc_generic_power_off(void) { -#ifdef CONFIG_NVRAM - nvram_sync(); -#endif ppc_md.power_off(); } -EXPORT_SYMBOL(machine_power_off); - void machine_halt(void) { #ifdef CONFIG_NVRAM @@ -139,9 +135,17 @@ void machine_halt(void) ppc_md.halt(); } -EXPORT_SYMBOL(machine_halt); +void (*pm_power_off)(void) = ppc_generic_power_off; -void (*pm_power_off)(void) = machine_power_off; +void machine_power_off(void) +{ +#ifdef CONFIG_NVRAM + nvram_sync(); +#endif + if (pm_power_off) + pm_power_off(); + ppc_generic_power_off(); +} #ifdef CONFIG_TAU extern u32 cpu_temp(unsigned long cpu); @@ -160,9 +164,8 @@ int show_cpuinfo(struct seq_file *m, void *v) /* 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 */ @@ -178,25 +181,25 @@ int show_cpuinfo(struct seq_file *m, void *v) pvr = cpu_data[i].pvr; lpj = cpu_data[i].loops_per_jiffy; #else - pvr = mfspr(PVR); + pvr = mfspr(SPRN_PVR); lpj = loops_per_jiffy; #endif 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", @@ -217,19 +220,26 @@ int show_cpuinfo(struct seq_file *m, void *v) return err; } - switch (PVR_VER(pvr)) { - case 0x0020: /* 403 family */ - maj = PVR_MAJ(pvr) + 1; + /* If we are a Freescale core do a simple check so + * we dont have to keep adding cases in the future */ + if ((PVR_VER(pvr) & 0x8000) == 0x8000) { + maj = PVR_MAJ(pvr); min = PVR_MIN(pvr); - break; - case 0x1008: /* 740P/750P ?? */ - maj = ((pvr >> 8) & 0xFF) - 1; - min = pvr & 0xFF; - break; - default: - maj = (pvr >> 8) & 0xFF; - min = pvr & 0xFF; - break; + } else { + switch (PVR_VER(pvr)) { + case 0x0020: /* 403 family */ + maj = PVR_MAJ(pvr) + 1; + min = PVR_MIN(pvr); + break; + case 0x1008: /* 740P/750P ?? */ + maj = ((pvr >> 8) & 0xFF) - 1; + min = pvr & 0xFF; + break; + default: + maj = (pvr >> 8) & 0xFF; + min = pvr & 0xFF; + break; + } } seq_printf(m, "revision\t: %hd.%hd (pvr %04x %04x)\n", @@ -238,6 +248,12 @@ int show_cpuinfo(struct seq_file *m, void *v) seq_printf(m, "bogomips\t: %lu.%02lu\n", lpj / (500000/HZ), (lpj / (5000/HZ)) % 100); +#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); +#endif + #ifdef CONFIG_SMP seq_printf(m, "\n"); #endif @@ -284,6 +300,7 @@ early_init(int r3, int r4, int r5) { unsigned long phys; unsigned long offset = reloc_offset(); + struct cpu_spec *spec; /* Default */ phys = offset + KERNELBASE; @@ -296,79 +313,17 @@ early_init(int r3, int r4, int r5) * Identify the CPU type and fix up code sections * that depend on which cpu we have. */ - 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 + spec = identify_cpu(offset, mfspr(SPRN_PVR)); + do_feature_fixups(spec->cpu_features, + PTRRELOC(&__start___ftr_fixup), + PTRRELOC(&__stop___ftr_fixup)); 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; - int *fp, 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 = (int *) 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, @@ -383,98 +338,9 @@ 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. - */ - cmd_line[0] = 0; - 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); } -#endif /* CONFIG_PPC_MULTIPLATFORM */ +#endif /* CONFIG_PPC_PREP */ struct bi_record *find_bootinfo(void) { @@ -504,22 +370,12 @@ void parse_bootinfo(struct bi_record *rec) 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; @@ -545,20 +401,37 @@ machine_init(unsigned long r3, unsigned long r4, unsigned long r5, #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 (cur_cpu_spec[0]->cpu_features & CPU_FTR_L2CR) { + if (cpu_has_feature(CPU_FTR_L2CR)) { unsigned long val = simple_strtoul(str, NULL, 0); printk(KERN_INFO "l2cr set to %lx\n", val); _set_L2CR(0); /* force invalidate by disable cache */ @@ -568,7 +441,7 @@ int __init ppc_setup_l2cr(char *str) } __setup("l2cr=", ppc_setup_l2cr); -#ifdef CONFIG_NVRAM +#ifdef CONFIG_GENERIC_NVRAM /* Generic nvram hooks used by drivers/char/gen_nvram.c */ unsigned char nvram_read_byte(int addr) @@ -605,9 +478,8 @@ int __init ppc_init(void) 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); /* call platform init */ if (ppc_md.init != NULL) { @@ -621,25 +493,19 @@ arch_initcall(ppc_init); /* Warning, IO base is not yet inited */ void __init setup_arch(char **cmdline_p) { - extern int panic_timeout; extern char *klimit; extern void do_init_bootmem(void); /* 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(0); + xmon(NULL); #endif /* CONFIG_XMON */ if ( ppc_md.progress ) ppc_md.progress("setup_arch: enter", 0x3eab); @@ -660,13 +526,13 @@ void __init setup_arch(char **cmdline_p) * Systems with OF can look in the properties on the cpu node(s) * for a possibly more accurate value. */ - if (cur_cpu_spec[0]->cpu_features & CPU_FTR_SPLIT_ID_CACHE) { - dcache_bsize = cur_cpu_spec[0]->dcache_bsize; - icache_bsize = cur_cpu_spec[0]->icache_bsize; + if (cpu_has_feature(CPU_FTR_SPLIT_ID_CACHE)) { + 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; @@ -677,9 +543,11 @@ void __init setup_arch(char **cmdline_p) init_mm.brk = (unsigned long) klimit; /* Save unparsed command line copy for /proc/cmdline */ - strlcpy(saved_command_line, cmd_line, sizeof(saved_command_line)); + strlcpy(saved_command_line, cmd_line, COMMAND_LINE_SIZE); *cmdline_p = cmd_line; + parse_early_param(); + /* set up the bootmem stuff with available memory */ do_init_bootmem(); if ( ppc_md.progress ) ppc_md.progress("setup_arch: bootmem", 0x3eab); @@ -690,11 +558,12 @@ void __init setup_arch(char **cmdline_p) if ( ppc_md.progress ) ppc_md.progress("ocp: exit", 0x3eab); #endif +#ifdef CONFIG_DUMMY_CONSOLE + conswitchp = &dummy_con; +#endif + ppc_md.setup_arch(); 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; }