From: Tony Lindgren Date: Tue, 26 Apr 2011 12:37:46 +0000 (-0700) Subject: ARM: zImage: Fix bad SP address after relocating kernel X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7c2527f0c4bf6bd096f58296597e1373387d69fd;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git ARM: zImage: Fix bad SP address after relocating kernel Otherwise cache_clean_flush can overwrite some of the relocated area depending on where the kernel image gets loaded. This fixes booting on n900 after commit 6d7d0ae51574943bf571d269da3243257a2d15db (ARM: 6750/1: improvements to compressed/head.S). Thanks to Aaro Koskinen for debugging the address of the relocated area that gets corrupted, and to Nicolas Pitre for the other uncompress related fixes. Signed-off-by: Tony Lindgren Signed-off-by: Nicolas Pitre --- diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S index 84ac4d656310..55a5bcb82ba0 100644 --- a/arch/arm/boot/compressed/head.S +++ b/arch/arm/boot/compressed/head.S @@ -253,6 +253,11 @@ restart: adr r0, LC0 /* Preserve offset to relocated code. */ sub r6, r9, r6 +#ifndef CONFIG_ZBOOT_ROM + /* cache_clean_flush may use the stack, so relocate it */ + add sp, sp, r6 +#endif + bl cache_clean_flush adr r0, BSYM(restart)