u-boot/arch/arm/include/asm/assembler.h
Tom Rini 7776960f4d arm: Partial cleanup and audit usage of <config.h>
We need to include <config.h> directly when a file needs to have
something such as CFG_SYS_SDRAM_SIZE referenced as this file is not
automatically globally included and is most commonly indirectly included
via common.h.  Remove most cases of arm including config.h directly, but
add it where needed. This includes a few board-specific fixes.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
2023-12-21 08:54:37 -05:00

89 lines
2.1 KiB
C

/*
* 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.
*/
#include <asm/unified.h>
/*
* Endian independent macros for shifting bytes within registers.
*/
#ifndef __ARMEB__
#define lspull lsr
#define lspush 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 lspull lsl
#define lspush 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
/*
* Use 'bx lr' everywhere except ARMv4 (without 'T') where only 'mov pc, lr'
* works
*/
.irp c,,eq,ne,cs,cc,mi,pl,vs,vc,hi,ls,ge,lt,gt,le,hs,lo
.macro ret\c, reg
/* ARMv4- don't know bx lr but the assembler fails to see that */
#ifdef __ARM_ARCH_4__
mov\c pc, \reg
#else
.ifeqs "\reg", "lr"
bx\c \reg
.else
mov\c pc, \reg
.endif
#endif
.endm
.endr
/*
* Cache aligned, used for optimized memcpy/memset
* In the kernel this is only enabled for Feroceon CPU's...
* We disable it especially for Thumb builds since those instructions
* are not made in a Thumb ready way...
*/
#if CONFIG_IS_ENABLED(SYS_THUMB_BUILD)
#define CALGN(code...)
#else
#define CALGN(code...) code
#endif