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2025cf9e19
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 263 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.208660670@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
64 lines
1.4 KiB
ArmAsm
64 lines
1.4 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
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* Author: Tony Xie <tony.xie@rock-chips.com>
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*/
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#include <linux/linkage.h>
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#include <asm/assembler.h>
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#include <asm/memory.h>
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.data
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/*
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* this code will be copied from
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* ddr to sram for system resumeing.
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* so it is ".data section".
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*/
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.align 2
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ENTRY(rockchip_slp_cpu_resume)
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setmode PSR_I_BIT | PSR_F_BIT | SVC_MODE, r1 @ set svc, irqs off
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mrc p15, 0, r1, c0, c0, 5
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and r1, r1, #0xf
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cmp r1, #0
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/* olny cpu0 can continue to run, the others is halt here */
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beq cpu0run
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secondary_loop:
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wfe
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b secondary_loop
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cpu0run:
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ldr r3, rkpm_bootdata_l2ctlr_f
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cmp r3, #0
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beq sp_set
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ldr r3, rkpm_bootdata_l2ctlr
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mcr p15, 1, r3, c9, c0, 2
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sp_set:
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ldr sp, rkpm_bootdata_cpusp
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ldr r1, rkpm_bootdata_cpu_code
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bx r1
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ENDPROC(rockchip_slp_cpu_resume)
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/* Parameters filled in by the kernel */
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/* Flag for whether to restore L2CTLR on resume */
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.global rkpm_bootdata_l2ctlr_f
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rkpm_bootdata_l2ctlr_f:
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.long 0
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/* Saved L2CTLR to restore on resume */
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.global rkpm_bootdata_l2ctlr
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rkpm_bootdata_l2ctlr:
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.long 0
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/* CPU resume SP addr */
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.globl rkpm_bootdata_cpusp
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rkpm_bootdata_cpusp:
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.long 0
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/* CPU resume function (physical address) */
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.globl rkpm_bootdata_cpu_code
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rkpm_bootdata_cpu_code:
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.long 0
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ENTRY(rk3288_bootram_sz)
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.word . - rockchip_slp_cpu_resume
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