diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2012-01-09 11:12:55 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2012-01-09 11:12:55 +0900 |
| commit | ca371d2854d48c0c22e7aa031df182f96dc85820 (patch) | |
| tree | 1c62be8b4da0bfc82fa7ffa1ad5b0e958266cbd1 /arch/m68k/platform/54xx/config.c | |
| parent | 0d376945d0bc0a8f8e00861d506b10e42e8af372 (diff) | |
| parent | a0e86bd4252519321b0d102dc4ed90557aa7bee9 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into sh-latest
Conflicts:
arch/arm/mach-shmobile/clock-sh73a0.c
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/m68k/platform/54xx/config.c')
| -rw-r--r-- | arch/m68k/platform/54xx/config.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/m68k/platform/54xx/config.c b/arch/m68k/platform/54xx/config.c index 78130984db95..ee043540bfa2 100644 --- a/arch/m68k/platform/54xx/config.c +++ b/arch/m68k/platform/54xx/config.c @@ -13,11 +13,17 @@ #include <linux/init.h> #include <linux/interrupt.h> #include <linux/io.h> +#include <linux/mm.h> +#include <linux/bootmem.h> +#include <asm/pgalloc.h> #include <asm/machdep.h> #include <asm/coldfire.h> #include <asm/m54xxsim.h> #include <asm/mcfuart.h> #include <asm/m54xxgpt.h> +#ifdef CONFIG_MMU +#include <asm/mmu_context.h> +#endif /***************************************************************************/ @@ -95,8 +101,49 @@ static void mcf54xx_reset(void) /***************************************************************************/ +#ifdef CONFIG_MMU + +unsigned long num_pages; + +static void __init mcf54xx_bootmem_alloc(void) +{ + unsigned long start_pfn; + unsigned long memstart; + + /* _rambase and _ramend will be naturally page aligned */ + m68k_memory[0].addr = _rambase; + m68k_memory[0].size = _ramend - _rambase; + + /* compute total pages in system */ + num_pages = (_ramend - _rambase) >> PAGE_SHIFT; + + /* page numbers */ + memstart = PAGE_ALIGN(_ramstart); + min_low_pfn = _rambase >> PAGE_SHIFT; + start_pfn = memstart >> PAGE_SHIFT; + max_low_pfn = _ramend >> PAGE_SHIFT; + high_memory = (void *)_ramend; + + m68k_virt_to_node_shift = fls(_ramend - _rambase - 1) - 6; + module_fixup(NULL, __start_fixup, __stop_fixup); + + /* setup bootmem data */ + m68k_setup_node(0); + memstart += init_bootmem_node(NODE_DATA(0), start_pfn, + min_low_pfn, max_low_pfn); + free_bootmem_node(NODE_DATA(0), memstart, _ramend - memstart); +} + +#endif /* CONFIG_MMU */ + +/***************************************************************************/ + void __init config_BSP(char *commandp, int size) { +#ifdef CONFIG_MMU + mcf54xx_bootmem_alloc(); + mmu_context_init(); +#endif mach_reset = mcf54xx_reset; m54xx_uarts_init(); } |