u-boot/arch/arm/cpu/armv8/transition.S
York Sun 40f8dec54d armv8/fsl-lsch3: Release secondary cores from boot hold off with Boot Page
Secondary cores need to be released from holdoff by boot release
registers. With GPP bootrom, they can boot from main memory
directly. Individual spin table is used for each core. Spin table
and the boot page is reserved in device tree so OS won't overwrite.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Arnab Basu <arnab.basu@freescale.com>
2014-09-25 08:36:19 -07:00

24 lines
465 B
ArmAsm

/*
* (C) Copyright 2013
* David Feng <fenghua@phytium.com.cn>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <asm-offsets.h>
#include <config.h>
#include <version.h>
#include <linux/linkage.h>
#include <asm/macro.h>
ENTRY(armv8_switch_to_el2)
switch_el x0, 1f, 0f, 0f
0: ret
1: armv8_switch_to_el2_m x0
ENDPROC(armv8_switch_to_el2)
ENTRY(armv8_switch_to_el1)
switch_el x0, 0f, 1f, 0f
0: ret
1: armv8_switch_to_el1_m x0, x1
ENDPROC(armv8_switch_to_el1)