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https://github.com/brain-hackers/u-boot-brain
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4f0cd03723
Add i.MX7 PSCI system power off support, linux kernel can use "poweroff" command to power off system via SNVS, PMIC power will be disabled. Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
61 lines
808 B
ArmAsm
61 lines
808 B
ArmAsm
/*
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* Copyright (C) 2015-2016 Freescale Semiconductor, Inc.
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* Copyright 2017 NXP
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <config.h>
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#include <linux/linkage.h>
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#include <asm/armv7.h>
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#include <asm/arch-armv7/generictimer.h>
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#include <asm/psci.h>
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.pushsection ._secure.text, "ax"
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.arch_extension sec
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.globl psci_cpu_on
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psci_cpu_on:
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push {r4, r5, lr}
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mov r4, r0
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mov r5, r1
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mov r0, r1
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mov r1, r2
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bl psci_save_target_pc
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mov r0, r4
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mov r1, r5
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ldr r2, =psci_cpu_entry
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bl imx_cpu_on
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pop {r4, r5, pc}
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.globl psci_cpu_off
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psci_cpu_off:
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bl psci_cpu_off_common
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bl psci_get_cpu_id
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bl imx_cpu_off
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1: wfi
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b 1b
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.globl psci_system_reset
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psci_system_reset:
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bl imx_system_reset
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2: wfi
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b 2b
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.globl psci_system_off
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psci_system_off:
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bl imx_system_off
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3: wfi
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b 3b
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.popsection
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