[people/ms/u-boot.git] / board / freescale / ls1021aqds / psci.S

/*
 * Copyright 2016 NXP Semiconductor.
 * Author: Wang Dongsheng <dongsheng.wang@freescale.com>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <config.h>
#include <linux/linkage.h>

#include <asm/armv7.h>
#include <asm/psci.h>

	.pushsection ._secure.text, "ax"

	.arch_extension sec

	.align	5

.globl	psci_system_off
psci_system_off:
	@ Get QIXIS base address
	movw	r1, #(QIXIS_BASE & 0xffff)
	movt	r1, #(QIXIS_BASE >> 16)

	ldrb	r2, [r1, #QIXIS_PWR_CTL]
	orr	r2, r2, #QIXIS_PWR_CTL_POWEROFF
	strb	r2, [r1, #QIXIS_PWR_CTL]

1:	wfi
	b	1b

	.popsection
Commit	Line	Data
aeb901f2 HZ	1	/*
	2	* Copyright 2016 NXP Semiconductor.
	3	* Author: Wang Dongsheng <dongsheng.wang@freescale.com>
	4	*
	5	* SPDX-License-Identifier: GPL-2.0+
	6	*/
	7
	8	#include <config.h>
	9	#include <linux/linkage.h>
	10
	11	#include <asm/armv7.h>
	12	#include <asm/psci.h>
	13
	14	.pushsection ._secure.text, "ax"
	15
	16	.arch_extension sec
	17
	18	.align 5
	19
	20	.globl psci_system_off
	21	psci_system_off:
	22	@ Get QIXIS base address
	23	movw r1, #(QIXIS_BASE & 0xffff)
	24	movt r1, #(QIXIS_BASE >> 16)
	25
	26	ldrb r2, [r1, #QIXIS_PWR_CTL]
	27	orr r2, r2, #QIXIS_PWR_CTL_POWEROFF
	28	strb r2, [r1, #QIXIS_PWR_CTL]
	29
	30	1: wfi
	31	b 1b
	32
	33	.popsection