aboutsummaryrefslogtreecommitdiffstats
path: root/src/arch/arm/include
diff options
context:
space:
mode:
authorJulius Werner <jwerner@chromium.org>2013-12-13 12:59:57 -0800
committerIsaac Christensen <isaac.christensen@se-eng.com>2014-09-22 18:47:42 +0200
commitd65e214d666269d0bd20d88ba2bc83349810c668 (patch)
tree4c7db158bc03fddf7bc4b373ee382cd1a2635979 /src/arch/arm/include
parent64b9ca9d4eb5eccdea86d967220c67b503a4519b (diff)
downloadcoreboot-d65e214d666269d0bd20d88ba2bc83349810c668.tar.gz
coreboot-d65e214d666269d0bd20d88ba2bc83349810c668.tar.xz
coreboot-d65e214d666269d0bd20d88ba2bc83349810c668.zip
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.h5
-rw-r--r--src/arch/arm/include/assembler.h62
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 1c3f7a21c..5f3e55f13 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 10363c4e4..000000000
--- 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