ARM: S5PV310: Add support Power Domain

This patch adds support Power Domain for S5PV310 and S5PC210.

Signed-off-by: Changhwan Youn <chaos.youn at samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

diff --git a/arch/arm/mach-s5pv310/Kconfig b/arch/arm/mach-s5pv310/Kconfig
index 1150b36..3bf72a6 100644 (file)
--- a/arch/arm/mach-s5pv310/Kconfig
+++ b/arch/arm/mach-s5pv310/Kconfig
@@ -14,6 +14,11 @@ config CPU_S5PV310
        help
          Enable S5PV310 CPU support
 
+config S5PV310_DEV_PD
+       bool
+       help
+         Compile in platform device definitions for Power Domain
+
 config S5PV310_SETUP_I2C1
        bool
        help
@@ -73,6 +78,7 @@ config MACH_SMDKC210
        select S3C_DEV_HSMMC1
        select S3C_DEV_HSMMC2
        select S3C_DEV_HSMMC3
+       select S5PV310_DEV_PD
        select S5PV310_SETUP_SDHCI
        help
          Machine support for Samsung SMDKC210
@@ -101,6 +107,7 @@ config MACH_SMDKV310
        select S3C_DEV_HSMMC1
        select S3C_DEV_HSMMC2
        select S3C_DEV_HSMMC3
+       select S5PV310_DEV_PD
        select S5PV310_SETUP_SDHCI
        help
          Machine support for Samsung SMDKV310

diff --git a/arch/arm/mach-s5pv310/Makefile b/arch/arm/mach-s5pv310/Makefile
index 84afc64..e310609 100644 (file)
--- a/arch/arm/mach-s5pv310/Makefile
+++ b/arch/arm/mach-s5pv310/Makefile
@@ -27,6 +27,9 @@ obj-$(CONFIG_MACH_UNIVERSAL_C210)     += mach-universal_c210.o
 
 # device support
 
+obj-y                                  += dev-audio.o
+obj-$(CONFIG_S5PV310_DEV_PD)           += dev-pd.o
+
 obj-$(CONFIG_S5PV310_SETUP_I2C1)       += setup-i2c1.o
 obj-$(CONFIG_S5PV310_SETUP_I2C2)       += setup-i2c2.o
 obj-$(CONFIG_S5PV310_SETUP_I2C3)       += setup-i2c3.o

diff --git a/arch/arm/mach-s5pv310/cpu.c b/arch/arm/mach-s5pv310/cpu.c
index b2a37d0..7b6e066 100644 (file)
--- a/arch/arm/mach-s5pv310/cpu.c
+++ b/arch/arm/mach-s5pv310/cpu.c
@@ -42,6 +42,11 @@ static struct map_desc s5pv310_iodesc[] __initdata = {
                .pfn            = __phys_to_pfn(S5PV310_PA_CMU),
                .length         = SZ_128K,
                .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_PMU,
+               .pfn            = __phys_to_pfn(S5PV310_PA_PMU),
+               .length         = SZ_64K,
+               .type           = MT_DEVICE,
        }, {
                .virtual        = (unsigned long)S5P_VA_COMBINER_BASE,
                .pfn            = __phys_to_pfn(S5PV310_PA_COMBINER),

diff --git a/arch/arm/mach-s5pv310/dev-pd.c b/arch/arm/mach-s5pv310/dev-pd.c
new file mode 100644 (file)
index 0000000..58a50c2
--- /dev/null
+++ b/arch/arm/mach-s5pv310/dev-pd.c
@@ -0,0 +1,139 @@
+/* linux/arch/arm/mach-s5pv310/dev-pd.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *             http://www.samsung.com
+ *
+ * S5PV310 - Power Domain support
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+
+#include <mach/regs-pmu.h>
+
+#include <plat/pd.h>
+
+static int s5pv310_pd_enable(struct device *dev)
+{
+       struct samsung_pd_info *pdata =  dev->platform_data;
+       u32 timeout;
+
+       __raw_writel(S5P_INT_LOCAL_PWR_EN, pdata->base);
+
+       /* Wait max 1ms */
+       timeout = 10;
+       while ((__raw_readl(pdata->base + 0x4) & S5P_INT_LOCAL_PWR_EN)
+               != S5P_INT_LOCAL_PWR_EN) {
+               if (timeout == 0) {
+                       printk(KERN_ERR "Power domain %s enable failed.\n",
+                               dev_name(dev));
+                       return -ETIMEDOUT;
+               }
+               timeout--;
+               udelay(100);
+       }
+
+       return 0;
+}
+
+static int s5pv310_pd_disable(struct device *dev)
+{
+       struct samsung_pd_info *pdata =  dev->platform_data;
+       u32 timeout;
+
+       __raw_writel(0, pdata->base);
+
+       /* Wait max 1ms */
+       timeout = 10;
+       while (__raw_readl(pdata->base + 0x4) & S5P_INT_LOCAL_PWR_EN) {
+               if (timeout == 0) {
+                       printk(KERN_ERR "Power domain %s disable failed.\n",
+                               dev_name(dev));
+                       return -ETIMEDOUT;
+               }
+               timeout--;
+               udelay(100);
+       }
+
+       return 0;
+}
+
+struct platform_device s5pv310_device_pd[] = {
+       {
+               .name           = "samsung-pd",
+               .id             = 0,
+               .dev = {
+                       .platform_data = &(struct samsung_pd_info) {
+                               .enable         = s5pv310_pd_enable,
+                               .disable        = s5pv310_pd_disable,
+                               .base           = S5P_PMU_MFC_CONF,
+                       },
+               },
+       }, {
+               .name           = "samsung-pd",
+               .id             = 1,
+               .dev = {
+                       .platform_data = &(struct samsung_pd_info) {
+                               .enable         = s5pv310_pd_enable,
+                               .disable        = s5pv310_pd_disable,
+                               .base           = S5P_PMU_G3D_CONF,
+                       },
+               },
+       }, {
+               .name           = "samsung-pd",
+               .id             = 2,
+               .dev = {
+                       .platform_data = &(struct samsung_pd_info) {
+                               .enable         = s5pv310_pd_enable,
+                               .disable        = s5pv310_pd_disable,
+                               .base           = S5P_PMU_LCD0_CONF,
+                       },
+               },
+       }, {
+               .name           = "samsung-pd",
+               .id             = 3,
+               .dev = {
+                       .platform_data = &(struct samsung_pd_info) {
+                               .enable         = s5pv310_pd_enable,
+                               .disable        = s5pv310_pd_disable,
+                               .base           = S5P_PMU_LCD1_CONF,
+                       },
+               },
+       }, {
+               .name           = "samsung-pd",
+               .id             = 4,
+               .dev = {
+                       .platform_data = &(struct samsung_pd_info) {
+                               .enable         = s5pv310_pd_enable,
+                               .disable        = s5pv310_pd_disable,
+                               .base           = S5P_PMU_TV_CONF,
+                       },
+               },
+       }, {
+               .name           = "samsung-pd",
+               .id             = 5,
+               .dev = {
+                       .platform_data = &(struct samsung_pd_info) {
+                               .enable         = s5pv310_pd_enable,
+                               .disable        = s5pv310_pd_disable,
+                               .base           = S5P_PMU_CAM_CONF,
+                       },
+               },
+       }, {
+               .name           = "samsung-pd",
+               .id             = 6,
+               .dev = {
+                       .platform_data = &(struct samsung_pd_info) {
+                               .enable         = s5pv310_pd_enable,
+                               .disable        = s5pv310_pd_disable,
+                               .base           = S5P_PMU_GPS_CONF,
+                       },
+               },
+       },
+};

diff --git a/arch/arm/mach-s5pv310/include/mach/map.h b/arch/arm/mach-s5pv310/include/mach/map.h
index 7acf4e7..a16d0c9 100644 (file)
--- a/arch/arm/mach-s5pv310/include/mach/map.h
+++ b/arch/arm/mach-s5pv310/include/mach/map.h
@@ -39,6 +39,8 @@
 #define S5PV310_PA_SYSCON              (0x10010000)
 #define S5P_PA_SYSCON                  S5PV310_PA_SYSCON
 
+#define S5PV310_PA_PMU                 (0x10020000)
+
 #define S5PV310_PA_CMU                 (0x10030000)
 
 #define S5PV310_PA_WATCHDOG            (0x10060000)

diff --git a/arch/arm/mach-s5pv310/include/mach/regs-pmu.h b/arch/arm/mach-s5pv310/include/mach/regs-pmu.h
new file mode 100644 (file)
index 0000000..fb333d0
--- /dev/null
+++ b/arch/arm/mach-s5pv310/include/mach/regs-pmu.h
@@ -0,0 +1,30 @@
+/* linux/arch/arm/mach-s5pv310/include/mach/regs-pmu.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *             http://www.samsung.com
+ *
+ * S5PV310 - Power management unit definition
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef __ASM_ARCH_REGS_PMU_H
+#define __ASM_ARCH_REGS_PMU_H __FILE__
+
+#include <mach/map.h>
+
+#define S5P_PMUREG(x)                  (S5P_VA_PMU + (x))
+
+#define S5P_PMU_CAM_CONF               S5P_PMUREG(0x3C00)
+#define S5P_PMU_TV_CONF                S5P_PMUREG(0x3C20)
+#define S5P_PMU_MFC_CONF               S5P_PMUREG(0x3C40)
+#define S5P_PMU_G3D_CONF               S5P_PMUREG(0x3C60)
+#define S5P_PMU_LCD0_CONF              S5P_PMUREG(0x3C80)
+#define S5P_PMU_LCD1_CONF              S5P_PMUREG(0x3CA0)
+#define S5P_PMU_GPS_CONF               S5P_PMUREG(0x3CE0)
+
+#define S5P_INT_LOCAL_PWR_EN           0x7
+
+#endif /* __ASM_ARCH_REGS_PMU_H */

diff --git a/arch/arm/mach-s5pv310/mach-smdkc210.c b/arch/arm/mach-s5pv310/mach-smdkc210.c
index 2b8d4fc..f65e668 100644 (file)
--- a/arch/arm/mach-s5pv310/mach-smdkc210.c
+++ b/arch/arm/mach-s5pv310/mach-smdkc210.c
@@ -23,6 +23,7 @@
 #include <plat/cpu.h>
 #include <plat/devs.h>
 #include <plat/sdhci.h>
+#include <plat/pd.h>
 
 #include <mach/map.h>
 #include <mach/regs-srom.h>
@@ -147,6 +148,13 @@ static struct platform_device *smdkc210_devices[] __initdata = {
        &s3c_device_rtc,
        &s3c_device_wdt,
        &smdkc210_smsc911x,
+       &s5pv310_device_pd[PD_MFC],
+       &s5pv310_device_pd[PD_G3D],
+       &s5pv310_device_pd[PD_LCD0],
+       &s5pv310_device_pd[PD_LCD1],
+       &s5pv310_device_pd[PD_CAM],
+       &s5pv310_device_pd[PD_TV],
+       &s5pv310_device_pd[PD_GPS],
 };
 
 static void __init smdkc210_smsc911x_init(void)

diff --git a/arch/arm/mach-s5pv310/mach-smdkv310.c b/arch/arm/mach-s5pv310/mach-smdkv310.c
index 35826d6..19aa3e3 100644 (file)
--- a/arch/arm/mach-s5pv310/mach-smdkv310.c
+++ b/arch/arm/mach-s5pv310/mach-smdkv310.c
@@ -23,6 +23,7 @@
 #include <plat/cpu.h>
 #include <plat/devs.h>
 #include <plat/sdhci.h>
+#include <plat/pd.h>
 
 #include <mach/map.h>
 #include <mach/regs-srom.h>
@@ -147,6 +148,13 @@ static struct platform_device *smdkv310_devices[] __initdata = {
        &s3c_device_rtc,
        &s3c_device_wdt,
        &smdkv310_smsc911x,
+       &s5pv310_device_pd[PD_MFC],
+       &s5pv310_device_pd[PD_G3D],
+       &s5pv310_device_pd[PD_LCD0],
+       &s5pv310_device_pd[PD_LCD1],
+       &s5pv310_device_pd[PD_CAM],
+       &s5pv310_device_pd[PD_TV],
+       &s5pv310_device_pd[PD_GPS],
 };
 
 static void __init smdkv310_smsc911x_init(void)

diff --git a/arch/arm/plat-s5p/include/plat/map-s5p.h b/arch/arm/plat-s5p/include/plat/map-s5p.h
index fef353d..d973d39 100644 (file)
--- a/arch/arm/plat-s5p/include/plat/map-s5p.h
+++ b/arch/arm/plat-s5p/include/plat/map-s5p.h
@@ -15,6 +15,7 @@
 
 #define S5P_VA_CHIPID          S3C_ADDR(0x02000000)
 #define S5P_VA_CMU             S3C_ADDR(0x02100000)
+#define S5P_VA_PMU             S3C_ADDR(0x02180000)
 #define S5P_VA_GPIO            S3C_ADDR(0x02200000)
 #define S5P_VA_GPIO1           S5P_VA_GPIO
 #define S5P_VA_GPIO2           S3C_ADDR(0x02240000)

diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h
index 2d82a6c..4dad6e2 100644 (file)
--- a/arch/arm/plat-samsung/include/plat/devs.h
+++ b/arch/arm/plat-samsung/include/plat/devs.h
@@ -122,6 +122,8 @@ extern struct platform_device s5p_device_fimc0;
 extern struct platform_device s5p_device_fimc1;
 extern struct platform_device s5p_device_fimc2;
 
+extern struct platform_device s5pv310_device_pd[];
+
 /* s3c2440 specific devices */
 
 #ifdef CONFIG_CPU_S3C2440