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| author | Tom Rini <trini@ti.com> | 2014-01-10 10:56:00 -0500 | 
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-01-10 10:56:00 -0500 | 
| commit | 7f673c99c2d8d1aa21996c5b914f06d784b080ca (patch) | |
| tree | df68108a0bd7326dc6299b96853b769220c55470 /arch/arm/cpu/armv8/cpu.c | |
| parent | 8401bfa91ef57e331e2a3abdf768d41803bec88e (diff) | |
| parent | 10a147bc665367111920be657409a5d56d3c0590 (diff) | |
| download | olio-uboot-2014.01-7f673c99c2d8d1aa21996c5b914f06d784b080ca.tar.xz olio-uboot-2014.01-7f673c99c2d8d1aa21996c5b914f06d784b080ca.zip | |
Merge branch 'master' of git://git.denx.de/u-boot-arm
Bringing in the MMC tree means that CONFIG_BOUNCE_BUFFER needed to be
added to include/configs/exynos5-dt.h now.
Conflicts:
	include/configs/exynos5250-dt.h
Signed-off-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'arch/arm/cpu/armv8/cpu.c')
| -rw-r--r-- | arch/arm/cpu/armv8/cpu.c | 43 | 
1 files changed, 43 insertions, 0 deletions
| diff --git a/arch/arm/cpu/armv8/cpu.c b/arch/arm/cpu/armv8/cpu.c new file mode 100644 index 000000000..e06c3cc04 --- /dev/null +++ b/arch/arm/cpu/armv8/cpu.c @@ -0,0 +1,43 @@ +/* + * (C) Copyright 2008 Texas Insturments + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de> + * + * SPDX-License-Identifier:	GPL-2.0+ + */ + +#include <common.h> +#include <command.h> +#include <asm/system.h> +#include <linux/compiler.h> + +int cleanup_before_linux(void) +{ +	/* +	 * this function is called just before we call linux +	 * it prepares the processor for linux +	 * +	 * disable interrupt and turn off caches etc ... +	 */ +	disable_interrupts(); + +	/* +	 * Turn off I-cache and invalidate it +	 */ +	icache_disable(); +	invalidate_icache_all(); + +	/* +	 * turn off D-cache +	 * dcache_disable() in turn flushes the d-cache and disables MMU +	 */ +	dcache_disable(); +	invalidate_dcache_all(); + +	return 0; +} |