u-boot/arch/x86/lib/init_helpers.c
Simon Glass 2eff989585 x86: Use X86_32BIT_INIT instead of X86_RESET_VECTOR
Use this new option to control the location of 32-bit init. This will allow
us to place this in SPL if needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-02-06 11:38:46 +08:00

32 lines
630 B
C

/*
* (C) Copyright 2011
* Graeme Russ, <graeme.russ@gmail.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <linux/errno.h>
#include <asm/mtrr.h>
DECLARE_GLOBAL_DATA_PTR;
/* Get the top of usable RAM */
__weak ulong board_get_usable_ram_top(ulong total_size)
{
return gd->ram_size;
}
int init_cache_f_r(void)
{
#if CONFIG_IS_ENABLED(X86_32BIT_INIT) && !defined(CONFIG_HAVE_FSP)
int ret;
ret = mtrr_commit(false);
/* If MTRR MSR is not implemented by the processor, just ignore it */
if (ret && ret != -ENOSYS)
return ret;
#endif
/* Initialise the CPU cache(s) */
return init_cache();
}