mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 18:59:44 +00:00
aeb901f2a6
This patch implements PSCI functions for ls102xa SoC following PSCI v1.0,
they are as the list:
psci_version,
psci_features,
psci_cpu_suspend,
psci_affinity_info,
psci_system_reset,
psci_system_off.
Tested on LS1021aQDS, LS1021aTWR.
Signed-off-by: Wang Dongsheng <dongsheng.wang@nxp.com>
Signed-off-by: Hongbo Zhang <hongbo.zhang@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
33 lines
561 B
ArmAsm
33 lines
561 B
ArmAsm
/*
|
|
* 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
|