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 43ccbb0bf41056d0348e992bb83b28c71a2db8bc..dd660eb2020482b544ba762beb89134eb1e2f40a 100644 (file)
--- 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 c9b2e1f97e44b4e1852e5159d2d3bc8263b6b4d9..2bb18f431db9e9552f7e924689c8def0faf0f741 100644 (file)
--- 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 (file)
index 0984078..0000000
--- 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 34b772a99327e94a8befe93a8b53e09bdb944f26..646057ab2e4ca41a6b1385b3cad88b1cacdeebe6 100644 (file)
--- 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 ef7e4668d6706169219b2822fcf8e3ce04fad62d..009fbe53df96031f462cf92357630345482e1bb7 100644 (file)
--- 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 (file)
index e3452cc..0000000
--- 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 53e674348b313b561d58707b387adc59a0da0d34..7b9dadadb0a524c26380954a88670cc85c9882ec 100644 (file)
--- 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 755d7ac4384ae0d51a0164fad924f5a366be6bc8..06401dc37b81eb84cea2d97c1fbb897f57ae5ad8 100644 (file)
--- 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 (file)
index 0000000..0fd591b
--- /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