From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/arm/mach-rockchip/sleep.S | 73 +++++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 kernel/arch/arm/mach-rockchip/sleep.S (limited to 'kernel/arch/arm/mach-rockchip/sleep.S') diff --git a/kernel/arch/arm/mach-rockchip/sleep.S b/kernel/arch/arm/mach-rockchip/sleep.S new file mode 100644 index 000000000..2eec9a341 --- /dev/null +++ b/kernel/arch/arm/mach-rockchip/sleep.S @@ -0,0 +1,73 @@ +/* + * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd + * Author: Tony Xie + * + * 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. + * + */ + +#include +#include +#include + +.data +/* + * this code will be copied from + * ddr to sram for system resumeing. + * so it is ".data section". + */ +.align + +ENTRY(rockchip_slp_cpu_resume) + setmode PSR_I_BIT | PSR_F_BIT | SVC_MODE, r1 @ set svc, irqs off + mrc p15, 0, r1, c0, c0, 5 + and r1, r1, #0xf + cmp r1, #0 + /* olny cpu0 can continue to run, the others is halt here */ + beq cpu0run +secondary_loop: + wfe + b secondary_loop +cpu0run: + ldr r3, rkpm_bootdata_l2ctlr_f + cmp r3, #0 + beq sp_set + ldr r3, rkpm_bootdata_l2ctlr + mcr p15, 1, r3, c9, c0, 2 +sp_set: + ldr sp, rkpm_bootdata_cpusp + ldr r1, rkpm_bootdata_cpu_code + bx r1 +ENDPROC(rockchip_slp_cpu_resume) + +/* Parameters filled in by the kernel */ + +/* Flag for whether to restore L2CTLR on resume */ + .global rkpm_bootdata_l2ctlr_f +rkpm_bootdata_l2ctlr_f: + .long 0 + +/* Saved L2CTLR to restore on resume */ + .global rkpm_bootdata_l2ctlr +rkpm_bootdata_l2ctlr: + .long 0 + +/* CPU resume SP addr */ + .globl rkpm_bootdata_cpusp +rkpm_bootdata_cpusp: + .long 0 + +/* CPU resume function (physical address) */ + .globl rkpm_bootdata_cpu_code +rkpm_bootdata_cpu_code: + .long 0 + +ENTRY(rk3288_bootram_sz) + .word . - rockchip_slp_cpu_resume -- cgit 1.2.3-korg