diff options
| author | Julius Werner <jwerner@chromium.org> | 2013-12-13 12:59:57 -0800 |
|---|---|---|
| committer | Isaac Christensen <isaac.christensen@se-eng.com> | 2014-09-22 18:47:42 +0200 |
| commit | d65e214d666269d0bd20d88ba2bc83349810c668 (patch) | |
| tree | 4c7db158bc03fddf7bc4b373ee382cd1a2635979 /src/arch/arm/include | |
| parent | 64b9ca9d4eb5eccdea86d967220c67b503a4519b (diff) | |
arm: Update mem* functions to newer versions
The memcpy/memset/memmove assembly implementations have been taken from
U-Boot, which originally got them from Linux. I turns out that they are
actually not that bad, but they could use an update. This patch pulls in
the current Linux upstream versions of those files, removing some old
U-Boot cruft such as checking whether the two pointers in a memcpy() are
equal (really now?) or side-stepping the R8 register because it was used
for special purposes. It also returns to the good old Linux
ENTRY/ENDPROC macros since we have them now anyway, and straightens out
the W() macro in preparation for unified thumb support.
Change-Id: I138af269b423bef0a237759ac29f1ee58ca206a0
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/182179
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
(cherry picked from commit 777127997bde5785b21d422d0b6eb04c4328b478)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6918
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Diffstat (limited to 'src/arch/arm/include')
| -rw-r--r-- | src/arch/arm/include/arch/asm.h | 5 | ||||
| -rw-r--r-- | src/arch/arm/include/assembler.h | 62 |
2 files changed, 5 insertions, 62 deletions
diff --git a/src/arch/arm/include/arch/asm.h b/src/arch/arm/include/arch/asm.h index 1c3f7a21c3..5f3e55f135 100644 --- a/src/arch/arm/include/arch/asm.h +++ b/src/arch/arm/include/arch/asm.h @@ -23,9 +23,14 @@ #if defined __arm__ # define ARM(x...) x # define THUMB(x...) +# define W(instr) instr #elif defined __thumb__ # define ARM(x...) # define THUMB(x...) x +# define W(instr) instr.w +# if __COREBOOT_ARM_ARCH__ < 7 +# error thumb mode has not been tested with ARM < v7! +# endif #else # error Not in ARM or thumb mode! #endif diff --git a/src/arch/arm/include/assembler.h b/src/arch/arm/include/assembler.h deleted file mode 100644 index 10363c4e4e..0000000000 --- a/src/arch/arm/include/assembler.h +++ /dev/null @@ -1,62 +0,0 @@ -/* - * arch/arm/include/asm/assembler.h - * - * Copyright (C) 1996-2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This file contains arm architecture specific defines - * for the different processors. - * - * Do not include any C declarations in this file - it is included by - * assembler source. - */ - -/* - * Endian independent macros for shifting bytes within registers. - */ -#ifndef __ARMEB__ -#define pull lsr -#define push lsl -#define get_byte_0 lsl #0 -#define get_byte_1 lsr #8 -#define get_byte_2 lsr #16 -#define get_byte_3 lsr #24 -#define put_byte_0 lsl #0 -#define put_byte_1 lsl #8 -#define put_byte_2 lsl #16 -#define put_byte_3 lsl #24 -#else -#define pull lsl -#define push lsr -#define get_byte_0 lsr #24 -#define get_byte_1 lsr #16 -#define get_byte_2 lsr #8 -#define get_byte_3 lsl #0 -#define put_byte_0 lsl #24 -#define put_byte_1 lsl #16 -#define put_byte_2 lsl #8 -#define put_byte_3 lsl #0 -#endif - -/* - * Data preload for architectures that support it - */ -#if defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) || \ - defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || \ - defined(__ARM_ARCH_6T2__) || defined(__ARM_ARCH_6Z__) || \ - defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_7A__) || \ - defined(__ARM_ARCH_7R__) -#define PLD(code...) code -#else -#define PLD(code...) -#endif - -/* - * Cache aligned - */ -#define CALGN(code...) code - -#define W(instr) instr |