diff options
Diffstat (limited to 'arch/sh/kernel/setup.c')
| -rw-r--r-- | arch/sh/kernel/setup.c | 85 |
1 files changed, 46 insertions, 39 deletions
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c index b3027a6775b..4156aac8c27 100644 --- a/arch/sh/kernel/setup.c +++ b/arch/sh/kernel/setup.c @@ -32,12 +32,6 @@ #include <asm/clock.h> #include <asm/mmu_context.h> -extern void * __rd_start, * __rd_end; - -/* - * Machine setup.. - */ - /* * Initialize loops_per_jiffy as 10000000 (1000MIPS). * This value will be used at the very early stage of serial setup. @@ -63,33 +57,25 @@ struct screen_info screen_info; extern int root_mountflags; -/* - * This is set up by the setup-routine at boot-time - */ -#define PARAM ((unsigned char *)empty_zero_page) - -#define MOUNT_ROOT_RDONLY (*(unsigned long *) (PARAM+0x000)) -#define RAMDISK_FLAGS (*(unsigned long *) (PARAM+0x004)) -#define ORIG_ROOT_DEV (*(unsigned long *) (PARAM+0x008)) -#define LOADER_TYPE (*(unsigned long *) (PARAM+0x00c)) -#define INITRD_START (*(unsigned long *) (PARAM+0x010)) -#define INITRD_SIZE (*(unsigned long *) (PARAM+0x014)) -/* ... */ -#define COMMAND_LINE ((char *) (PARAM+0x100)) - #define RAMDISK_IMAGE_START_MASK 0x07FF #define RAMDISK_PROMPT_FLAG 0x8000 #define RAMDISK_LOAD_FLAG 0x4000 static char __initdata command_line[COMMAND_LINE_SIZE] = { 0, }; -static struct resource code_resource = { .name = "Kernel code", }; -static struct resource data_resource = { .name = "Kernel data", }; +static struct resource code_resource = { + .name = "Kernel code", + .flags = IORESOURCE_BUSY | IORESOURCE_MEM, +}; + +static struct resource data_resource = { + .name = "Kernel data", + .flags = IORESOURCE_BUSY | IORESOURCE_MEM, +}; unsigned long memory_start; EXPORT_SYMBOL(memory_start); - -unsigned long memory_end; +unsigned long memory_end = 0; EXPORT_SYMBOL(memory_end); static int __init early_parse_mem(char *p) @@ -128,6 +114,37 @@ static void __init register_bootmem_low_pages(void) free_bootmem(PFN_PHYS(curr_pfn), PFN_PHYS(pages)); } +#ifdef CONFIG_KEXEC +static void __init reserve_crashkernel(void) +{ + unsigned long long free_mem; + unsigned long long crash_size, crash_base; + int ret; + + free_mem = ((unsigned long long)max_low_pfn - min_low_pfn) << PAGE_SHIFT; + + ret = parse_crashkernel(boot_command_line, free_mem, + &crash_size, &crash_base); + if (ret == 0 && crash_size) { + if (crash_base > 0) { + printk(KERN_INFO "Reserving %ldMB of memory at %ldMB " + "for crashkernel (System RAM: %ldMB)\n", + (unsigned long)(crash_size >> 20), + (unsigned long)(crash_base >> 20), + (unsigned long)(free_mem >> 20)); + crashk_res.start = crash_base; + crashk_res.end = crash_base + crash_size - 1; + reserve_bootmem(crash_base, crash_size); + } else + printk(KERN_INFO "crashkernel reservation failed - " + "you have to specify a base address\n"); + } +} +#else +static inline void __init reserve_crashkernel(void) +{} +#endif + void __init setup_bootmem_allocator(unsigned long free_pfn) { unsigned long bootmap_size; @@ -164,14 +181,7 @@ void __init setup_bootmem_allocator(unsigned long free_pfn) sparse_memory_present_with_active_regions(0); #ifdef CONFIG_BLK_DEV_INITRD - ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0); - if (&__rd_start != &__rd_end) { - LOADER_TYPE = 1; - INITRD_START = PHYSADDR((unsigned long)&__rd_start) - - __MEMORY_START; - INITRD_SIZE = (unsigned long)&__rd_end - - (unsigned long)&__rd_start; - } + ROOT_DEV = Root_RAM0; if (LOADER_TYPE && INITRD_START) { if (INITRD_START + INITRD_SIZE <= (max_low_pfn << PAGE_SHIFT)) { @@ -189,11 +199,8 @@ void __init setup_bootmem_allocator(unsigned long free_pfn) } } #endif -#ifdef CONFIG_KEXEC - if (crashk_res.start != crashk_res.end) - reserve_bootmem(crashk_res.start, - crashk_res.end - crashk_res.start + 1); -#endif + + reserve_crashkernel(); } #ifndef CONFIG_NEED_MULTIPLE_NODES @@ -237,7 +244,8 @@ void __init setup_arch(char **cmdline_p) data_resource.end = virt_to_phys(_edata)-1; memory_start = (unsigned long)PAGE_OFFSET+__MEMORY_START; - memory_end = memory_start + __MEMORY_SIZE; + if (!memory_end) + memory_end = memory_start + __MEMORY_SIZE; #ifdef CONFIG_CMDLINE_BOOL strlcpy(command_line, CONFIG_CMDLINE, sizeof(command_line)); @@ -295,7 +303,6 @@ static const char *cpu_name[] = { [CPU_SH7750S] = "SH7750S", [CPU_SH7750R] = "SH7750R", [CPU_SH7751] = "SH7751", [CPU_SH7751R] = "SH7751R", [CPU_SH7760] = "SH7760", - [CPU_ST40RA] = "ST40RA", [CPU_ST40GX1] = "ST40GX1", [CPU_SH4_202] = "SH4-202", [CPU_SH4_501] = "SH4-501", [CPU_SH7770] = "SH7770", [CPU_SH7780] = "SH7780", [CPU_SH7781] = "SH7781", [CPU_SH7343] = "SH7343", |