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| author | Nicolas Pitre <nico@cam.org> | 2005-10-29 16:28:29 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-10-29 16:28:29 +0100 |
| commit | 1a47ebc0d971fbc47cd859a09956f7c7d001f5fd (patch) | |
| tree | 7e1f083a72712f7bbc29829622683a5077927492 /arch/arm/mm/init.c | |
| parent | b4a1f67fbfb848ded8cf0c6c305224534144ab2d (diff) | |
| download | op-kernel-dev-1a47ebc0d971fbc47cd859a09956f7c7d001f5fd.zip op-kernel-dev-1a47ebc0d971fbc47cd859a09956f7c7d001f5fd.tar.gz | |
[ARM] 3059/1: fix XIP support
Patch from Nicolas Pitre
Fix XIP support after recent bootmem code refactoring.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm/init.c')
| -rw-r--r-- | arch/arm/mm/init.c | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index f449681..fd079ff 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -363,20 +363,16 @@ static void __init bootmem_init(struct meminfo *mi) memcpy(&meminfo, mi, sizeof(meminfo)); -#ifdef CONFIG_XIP_KERNEL -#error needs fixing - p->pfn = __phys_to_pfn(CONFIG_XIP_PHYS_ADDR & PMD_MASK); - p->virtual = (unsigned long)&_stext & PMD_MASK; - p->length = ((unsigned long)&_etext - p->virtual + ~PMD_MASK) & PMD_MASK; - p->type = MT_ROM; - p ++; -#endif - /* * Clear out all the mappings below the kernel image. - * FIXME: what about XIP? */ - for (addr = 0; addr < PAGE_OFFSET; addr += PGDIR_SIZE) + for (addr = 0; addr < MODULE_START; addr += PGDIR_SIZE) + pmd_clear(pmd_off_k(addr)); +#ifdef CONFIG_XIP_KERNEL + /* The XIP kernel is mapped in the module area -- skip over it */ + addr = ((unsigned long)&_etext + PGDIR_SIZE - 1) & PGDIR_MASK; +#endif + for ( ; addr < PAGE_OFFSET; addr += PGDIR_SIZE) pmd_clear(pmd_off_k(addr)); /* @@ -436,6 +432,18 @@ static void __init devicemaps_init(struct machine_desc *mdesc) pmd_clear(pmd_off_k(addr)); /* + * Map the kernel if it is XIP. + * It is always first in the modulearea. + */ +#ifdef CONFIG_XIP_KERNEL + map.pfn = __phys_to_pfn(CONFIG_XIP_PHYS_ADDR & PGDIR_MASK); + map.virtual = MODULE_START; + map.length = ((unsigned long)&_etext - map.virtual + ~PGDIR_MASK) & PGDIR_MASK; + map.type = MT_ROM; + create_mapping(&map); +#endif + + /* * Map the cache flushing regions. */ #ifdef FLUSH_BASE |
