From: Abhilash Kesavan <a.kesavan@samsung.com> Date: Tue, 4 Oct 2011 11:25:51 +0000 (+0900) Subject: ARM: S5P: Make the sleep code common for S5P series SoCs X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e2e13621b267f88f69917780e107725d2c0ecad9;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git ARM: S5P: Make the sleep code common for S5P series SoCs The sleep code for S5PV210 and EXYNOS4 are identical; moreover S5p64X0 and S5PC100 for which support will be added soon can use the same procedure. Create a common sleep code in the plat-s5p directory so that it can be re-used. Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> --- diff --git a/arch/arm/mach-exynos4/Kconfig b/arch/arm/mach-exynos4/Kconfig index 43ccbb0bf410..dd660eb20204 100644 --- a/arch/arm/mach-exynos4/Kconfig +++ b/arch/arm/mach-exynos4/Kconfig @@ -13,12 +13,14 @@ config CPU_EXYNOS4210 bool select SAMSUNG_DMADEV select S5P_PM if PM + select S5P_SLEEP if PM help Enable EXYNOS4210 CPU support config SOC_EXYNOS4212 bool select S5P_PM if PM + select S5P_SLEEP if PM help Enable EXYNOS4212 SoC support diff --git a/arch/arm/mach-exynos4/Makefile b/arch/arm/mach-exynos4/Makefile index c9b2e1f97e44..2bb18f431db9 100644 --- a/arch/arm/mach-exynos4/Makefile +++ b/arch/arm/mach-exynos4/Makefile @@ -16,7 +16,7 @@ obj-$(CONFIG_ARCH_EXYNOS4) += cpu.o init.o clock.o irq-combiner.o obj-$(CONFIG_ARCH_EXYNOS4) += setup-i2c0.o irq-eint.o dma.o pmu.o obj-$(CONFIG_CPU_EXYNOS4210) += clock-exynos4210.o obj-$(CONFIG_SOC_EXYNOS4212) += clock-exynos4212.o -obj-$(CONFIG_PM) += pm.o sleep.o +obj-$(CONFIG_PM) += pm.o obj-$(CONFIG_CPU_IDLE) += cpuidle.o obj-$(CONFIG_SMP) += platsmp.o headsmp.o diff --git a/arch/arm/mach-exynos4/sleep.S b/arch/arm/mach-exynos4/sleep.S deleted file mode 100644 index 0984078f1eba..000000000000 --- a/arch/arm/mach-exynos4/sleep.S +++ /dev/null @@ -1,54 +0,0 @@ -/* linux/arch/arm/mach-exynos4/sleep.S - * - * Copyright (c) 2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * EXYNOS4210 power Manager (Suspend-To-RAM) support - * Based on S3C2410 sleep code by: - * Ben Dooks, (c) 2004 Simtec Electronics - * - * Based on PXA/SA1100 sleep code by: - * Nicolas Pitre, (c) 2002 Monta Vista Software Inc - * Cliff Brake, (c) 2001 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -*/ - -#include <linux/linkage.h> -#include <asm/assembler.h> -#include <asm/memory.h> - - .text - - /* - * sleep magic, to allow the bootloader to check for an valid - * image to resume to. Must be the first word before the - * s3c_cpu_resume entry. - */ - - .word 0x2bedf00d - - /* - * s3c_cpu_resume - * - * resume code entry for bootloader to call - * - * we must put this code here in the data segment as we have no - * other way of restoring the stack pointer after sleep, and we - * must not write to the code segment (code is read-only) - */ - -ENTRY(s3c_cpu_resume) - b cpu_resume diff --git a/arch/arm/mach-s5pv210/Kconfig b/arch/arm/mach-s5pv210/Kconfig index 34b772a99327..646057ab2e4c 100644 --- a/arch/arm/mach-s5pv210/Kconfig +++ b/arch/arm/mach-s5pv210/Kconfig @@ -15,6 +15,7 @@ config CPU_S5PV210 select S5P_EXT_INT select S5P_HRT select S5P_PM if PM + select S5P_SLEEP if PM help Enable S5PV210 CPU support diff --git a/arch/arm/mach-s5pv210/Makefile b/arch/arm/mach-s5pv210/Makefile index ef7e4668d670..009fbe53df96 100644 --- a/arch/arm/mach-s5pv210/Makefile +++ b/arch/arm/mach-s5pv210/Makefile @@ -14,7 +14,7 @@ obj- := obj-$(CONFIG_CPU_S5PV210) += cpu.o init.o clock.o dma.o obj-$(CONFIG_CPU_S5PV210) += setup-i2c0.o -obj-$(CONFIG_PM) += pm.o sleep.o +obj-$(CONFIG_PM) += pm.o # machine support diff --git a/arch/arm/mach-s5pv210/sleep.S b/arch/arm/mach-s5pv210/sleep.S deleted file mode 100644 index e3452ccd4b08..000000000000 --- a/arch/arm/mach-s5pv210/sleep.S +++ /dev/null @@ -1,52 +0,0 @@ -/* linux/arch/arm/plat-s5p/sleep.S - * - * Copyright (c) 2010 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * S5PV210 power Manager (Suspend-To-RAM) support - * Based on S3C2410 sleep code by: - * Ben Dooks, (c) 2004 Simtec Electronics - * - * Based on PXA/SA1100 sleep code by: - * Nicolas Pitre, (c) 2002 Monta Vista Software Inc - * Cliff Brake, (c) 2001 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -*/ - -#include <linux/linkage.h> -#include <asm/assembler.h> -#include <asm/memory.h> - - .text - - /* sleep magic, to allow the bootloader to check for an valid - * image to resume to. Must be the first word before the - * s3c_cpu_resume entry. - */ - - .word 0x2bedf00d - - /* s3c_cpu_resume - * - * resume code entry for bootloader to call - * - * we must put this code here in the data segment as we have no - * other way of restoring the stack pointer after sleep, and we - * must not write to the code segment (code is read-only) - */ - -ENTRY(s3c_cpu_resume) - b cpu_resume diff --git a/arch/arm/plat-s5p/Kconfig b/arch/arm/plat-s5p/Kconfig index 53e674348b31..7b9dadadb0a5 100644 --- a/arch/arm/plat-s5p/Kconfig +++ b/arch/arm/plat-s5p/Kconfig @@ -54,6 +54,12 @@ config S5P_SYSTEM_MMU help Say Y here if you want to enable System MMU +config S5P_SLEEP + bool + help + Internal config node to apply common S5P sleep management code. + Can be selected by S5P and newer SoCs with similar sleep procedure. + config S5P_DEV_FIMC0 bool help diff --git a/arch/arm/plat-s5p/Makefile b/arch/arm/plat-s5p/Makefile index 755d7ac4384a..06401dc37b81 100644 --- a/arch/arm/plat-s5p/Makefile +++ b/arch/arm/plat-s5p/Makefile @@ -21,6 +21,7 @@ obj-$(CONFIG_S5P_EXT_INT) += irq-eint.o obj-$(CONFIG_S5P_GPIO_INT) += irq-gpioint.o obj-$(CONFIG_S5P_SYSTEM_MMU) += sysmmu.o obj-$(CONFIG_S5P_PM) += pm.o irq-pm.o +obj-$(CONFIG_S5P_SLEEP) += sleep.o obj-$(CONFIG_S5P_HRT) += s5p-time.o # devices diff --git a/arch/arm/plat-s5p/sleep.S b/arch/arm/plat-s5p/sleep.S new file mode 100644 index 000000000000..0fd591bfc9fd --- /dev/null +++ b/arch/arm/plat-s5p/sleep.S @@ -0,0 +1,49 @@ +/* linux/arch/arm/plat-s5p/sleep.S + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Common S5P Sleep Code + * Based on S3C64XX sleep code by: + * Ben Dooks, (c) 2008 Simtec Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include <linux/linkage.h> +#include <asm/assembler.h> + + .text + + /* + * sleep magic, to allow the bootloader to check for an valid + * image to resume to. Must be the first word before the + * s3c_cpu_resume entry. + */ + + .word 0x2bedf00d + + /* + * s3c_cpu_resume + * + * resume code entry for bootloader to call + * + * we must put this code here in the data segment as we have no + * other way of restoring the stack pointer after sleep, and we + * must not write to the code segment (code is read-only) + */ + +ENTRY(s3c_cpu_resume) + b cpu_resume