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author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-10-15 11:31:54 +1100 |
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committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-10-15 11:31:54 +1100 |
commit | 6dc6472581f693b5fc95aebedf67b4960fb85cf0 (patch) | |
tree | 06a5a9a08519950575505273eabced331ed51405 /arch/arm/mach-pxa/mioa701_bootresume.S | |
parent | ee673eaa72d8d185012b1027a05e25aba18c267f (diff) | |
parent | 8acd3a60bcca17c6d89c73cee3ad6057eb83ba1e (diff) |
Merge commit 'origin'
Manual fixup of conflicts on:
arch/powerpc/include/asm/dcr-regs.h
drivers/net/ibm_newemac/core.h
Diffstat (limited to 'arch/arm/mach-pxa/mioa701_bootresume.S')
-rw-r--r-- | arch/arm/mach-pxa/mioa701_bootresume.S | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/mioa701_bootresume.S b/arch/arm/mach-pxa/mioa701_bootresume.S new file mode 100644 index 00000000000..a647693d985 --- /dev/null +++ b/arch/arm/mach-pxa/mioa701_bootresume.S @@ -0,0 +1,36 @@ +/* Bootloader to resume MIO A701 + * + * 2007-1-12 Robert Jarzmik + * + * This code is licenced under the GPLv2. +*/ + +#include <linux/linkage.h> +#include <asm/assembler.h> + +/* + * Note: Yes, part of the following code is located into the .data section. + * This is to allow jumpaddr to be accessed with a relative load + * while we can't rely on any MMU translation. We could have put + * sleep_save_sp in the .text section as well, but some setups might + * insist on it to be truly read-only. + */ + .data +ENTRY(mioa701_bootstrap) +0: + b 1f +ENTRY(mioa701_jumpaddr) + .word 0x40f00008 @ PSPR in no-MMU mode +1: + mov r0, #0xa0000000 @ Don't suppose memory access works + orr r0, r0, #0x00200000 @ even if it's supposed to + mov r1, #0 + str r1, [r0] @ Early disable resume for next boot + ldr r0, mioa701_jumpaddr @ (Murphy's Law) + ldr r0, [r0] + mov pc, r0 +2: + +ENTRY(mioa701_bootstrap_lg) + .data + .word 2b-0b |