diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/powerpc/kernel/setup_32.c')
| -rw-r--r-- | ANDROID_3.4.5/arch/powerpc/kernel/setup_32.c | 354 |
1 files changed, 0 insertions, 354 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/kernel/setup_32.c b/ANDROID_3.4.5/arch/powerpc/kernel/setup_32.c deleted file mode 100644 index ec8a53fa..00000000 --- a/ANDROID_3.4.5/arch/powerpc/kernel/setup_32.c +++ /dev/null @@ -1,354 +0,0 @@ -/* - * Common prep/pmac/chrp boot and setup code. - */ - -#include <linux/module.h> -#include <linux/string.h> -#include <linux/sched.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/reboot.h> -#include <linux/delay.h> -#include <linux/initrd.h> -#include <linux/tty.h> -#include <linux/bootmem.h> -#include <linux/seq_file.h> -#include <linux/root_dev.h> -#include <linux/cpu.h> -#include <linux/console.h> -#include <linux/memblock.h> - -#include <asm/io.h> -#include <asm/prom.h> -#include <asm/processor.h> -#include <asm/pgtable.h> -#include <asm/setup.h> -#include <asm/smp.h> -#include <asm/elf.h> -#include <asm/cputable.h> -#include <asm/bootx.h> -#include <asm/btext.h> -#include <asm/machdep.h> -#include <asm/uaccess.h> -#include <asm/pmac_feature.h> -#include <asm/sections.h> -#include <asm/nvram.h> -#include <asm/xmon.h> -#include <asm/time.h> -#include <asm/serial.h> -#include <asm/udbg.h> -#include <asm/mmu_context.h> - -#include "setup.h" - -#define DBG(fmt...) - -extern void bootx_init(unsigned long r4, unsigned long phys); - -int boot_cpuid = -1; -EXPORT_SYMBOL_GPL(boot_cpuid); -int boot_cpuid_phys; -EXPORT_SYMBOL_GPL(boot_cpuid_phys); - -int smp_hw_index[NR_CPUS]; - -unsigned long ISA_DMA_THRESHOLD; -unsigned int DMA_MODE_READ; -unsigned int DMA_MODE_WRITE; - -#ifdef CONFIG_VGA_CONSOLE -unsigned long vgacon_remap_base; -EXPORT_SYMBOL(vgacon_remap_base); -#endif - -/* - * These are used in binfmt_elf.c to put aux entries on the stack - * for each elf executable being started. - */ -int dcache_bsize; -int icache_bsize; -int ucache_bsize; - -/* - * We're called here very early in the boot. We determine the machine - * type and call the appropriate low-level setup functions. - * -- Cort <cort@fsmlabs.com> - * - * Note that the kernel may be running at an address which is different - * from the address that it was linked at, so we must use RELOC/PTRRELOC - * to access static data (including strings). -- paulus - */ -notrace unsigned long __init early_init(unsigned long dt_ptr) -{ - unsigned long offset = reloc_offset(); - struct cpu_spec *spec; - - /* First zero the BSS -- use memset_io, some platforms don't have - * caches on yet */ - memset_io((void __iomem *)PTRRELOC(&__bss_start), 0, - __bss_stop - __bss_start); - - /* - * Identify the CPU type and fix up code sections - * that depend on which cpu we have. - */ - spec = identify_cpu(offset, mfspr(SPRN_PVR)); - - do_feature_fixups(spec->cpu_features, - PTRRELOC(&__start___ftr_fixup), - PTRRELOC(&__stop___ftr_fixup)); - - do_feature_fixups(spec->mmu_features, - PTRRELOC(&__start___mmu_ftr_fixup), - PTRRELOC(&__stop___mmu_ftr_fixup)); - - do_lwsync_fixups(spec->cpu_features, - PTRRELOC(&__start___lwsync_fixup), - PTRRELOC(&__stop___lwsync_fixup)); - - do_final_fixups(); - - return KERNELBASE + offset; -} - - -/* - * Find out what kind of machine we're on and save any data we need - * from the early boot process (devtree is copied on pmac by prom_init()). - * This is called very early on the boot process, after a minimal - * MMU environment has been set up but before MMU_init is called. - */ -notrace void __init machine_init(u64 dt_ptr) -{ - lockdep_init(); - - /* Enable early debugging if any specified (see udbg.h) */ - udbg_early_init(); - - /* Do some early initialization based on the flat device tree */ - early_init_devtree(__va(dt_ptr)); - - early_init_mmu(); - - probe_machine(); - - setup_kdump_trampoline(); - -#ifdef CONFIG_6xx - if (cpu_has_feature(CPU_FTR_CAN_DOZE) || - cpu_has_feature(CPU_FTR_CAN_NAP)) - ppc_md.power_save = ppc6xx_idle; -#endif - -#ifdef CONFIG_E500 - if (cpu_has_feature(CPU_FTR_CAN_DOZE) || - cpu_has_feature(CPU_FTR_CAN_NAP)) - ppc_md.power_save = e500_idle; -#endif - if (ppc_md.progress) - ppc_md.progress("id mach(): done", 0x200); -} - -#ifdef CONFIG_BOOKE_WDT -extern u32 booke_wdt_enabled; -extern u32 booke_wdt_period; - -/* Checks wdt=x and wdt_period=xx command-line option */ -notrace 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 (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 */ - _set_L2CR(val); /* and enable it */ - } - return 1; -} -__setup("l2cr=", ppc_setup_l2cr); - -/* Checks "l3cr=xxxx" command-line option */ -int __init ppc_setup_l3cr(char *str) -{ - if (cpu_has_feature(CPU_FTR_L3CR)) { - unsigned long val = simple_strtoul(str, NULL, 0); - printk(KERN_INFO "l3cr set to %lx\n", val); - _set_L3CR(val); /* and enable it */ - } - return 1; -} -__setup("l3cr=", ppc_setup_l3cr); - -#ifdef CONFIG_GENERIC_NVRAM - -/* Generic nvram hooks used by drivers/char/gen_nvram.c */ -unsigned char nvram_read_byte(int addr) -{ - if (ppc_md.nvram_read_val) - return ppc_md.nvram_read_val(addr); - return 0xff; -} -EXPORT_SYMBOL(nvram_read_byte); - -void nvram_write_byte(unsigned char val, int addr) -{ - if (ppc_md.nvram_write_val) - ppc_md.nvram_write_val(addr, val); -} -EXPORT_SYMBOL(nvram_write_byte); - -ssize_t nvram_get_size(void) -{ - if (ppc_md.nvram_size) - return ppc_md.nvram_size(); - return -1; -} -EXPORT_SYMBOL(nvram_get_size); - -void nvram_sync(void) -{ - if (ppc_md.nvram_sync) - ppc_md.nvram_sync(); -} -EXPORT_SYMBOL(nvram_sync); - -#endif /* CONFIG_NVRAM */ - -int __init ppc_init(void) -{ - /* clear the progress line */ - if (ppc_md.progress) - ppc_md.progress(" ", 0xffff); - - /* call platform init */ - if (ppc_md.init != NULL) { - ppc_md.init(); - } - return 0; -} - -arch_initcall(ppc_init); - -static void __init irqstack_early_init(void) -{ - unsigned int i; - - /* interrupt stacks must be in lowmem, we get that for free on ppc32 - * as the memblock is limited to lowmem by default */ - for_each_possible_cpu(i) { - softirq_ctx[i] = (struct thread_info *) - __va(memblock_alloc(THREAD_SIZE, THREAD_SIZE)); - hardirq_ctx[i] = (struct thread_info *) - __va(memblock_alloc(THREAD_SIZE, THREAD_SIZE)); - } -} - -#if defined(CONFIG_BOOKE) || defined(CONFIG_40x) -static void __init exc_lvl_early_init(void) -{ - unsigned int i, hw_cpu; - - /* interrupt stacks must be in lowmem, we get that for free on ppc32 - * as the memblock is limited to lowmem by MEMBLOCK_REAL_LIMIT */ - for_each_possible_cpu(i) { - hw_cpu = get_hard_smp_processor_id(i); - critirq_ctx[hw_cpu] = (struct thread_info *) - __va(memblock_alloc(THREAD_SIZE, THREAD_SIZE)); -#ifdef CONFIG_BOOKE - dbgirq_ctx[hw_cpu] = (struct thread_info *) - __va(memblock_alloc(THREAD_SIZE, THREAD_SIZE)); - mcheckirq_ctx[hw_cpu] = (struct thread_info *) - __va(memblock_alloc(THREAD_SIZE, THREAD_SIZE)); -#endif - } -} -#else -#define exc_lvl_early_init() -#endif - -/* Warning, IO base is not yet inited */ -void __init setup_arch(char **cmdline_p) -{ - *cmdline_p = cmd_line; - - /* so udelay does something sensible, assume <= 1000 bogomips */ - loops_per_jiffy = 500000000 / HZ; - - unflatten_device_tree(); - check_for_initrd(); - - if (ppc_md.init_early) - ppc_md.init_early(); - - find_legacy_serial_ports(); - - smp_setup_cpu_maps(); - - /* Register early console */ - register_early_udbg_console(); - - xmon_setup(); - - /* - * Set cache line size based on type of cpu as a default. - * Systems with OF can look in the properties on the cpu node(s) - * for a possibly more accurate value. - */ - dcache_bsize = cur_cpu_spec->dcache_bsize; - icache_bsize = cur_cpu_spec->icache_bsize; - ucache_bsize = 0; - if (cpu_has_feature(CPU_FTR_UNIFIED_ID_CACHE)) - ucache_bsize = icache_bsize = dcache_bsize; - - /* reboot on panic */ - panic_timeout = 180; - - if (ppc_md.panic) - setup_panic(); - - init_mm.start_code = (unsigned long)_stext; - init_mm.end_code = (unsigned long) _etext; - init_mm.end_data = (unsigned long) _edata; - init_mm.brk = klimit; - - exc_lvl_early_init(); - - irqstack_early_init(); - - /* set up the bootmem stuff with available memory */ - do_init_bootmem(); - if ( ppc_md.progress ) ppc_md.progress("setup_arch: bootmem", 0x3eab); - -#ifdef CONFIG_DUMMY_CONSOLE - conswitchp = &dummy_con; -#endif - - if (ppc_md.setup_arch) - ppc_md.setup_arch(); - if ( ppc_md.progress ) ppc_md.progress("arch: exit", 0x3eab); - - paging_init(); - - /* Initialize the MMU context management stuff */ - mmu_context_init(); - -} |