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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>
hifive-unleashed-5.1
Changhwan Youn 2010-12-03 17:15:40 +09:00 committed by Kukjin Kim
parent a50eb1c768
commit d6d8b48199
10 changed files with 205 additions and 0 deletions
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7
arch/arm/mach-s5pv310/Kconfig
View File

@ -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

3
arch/arm/mach-s5pv310/Makefile
View File

@ -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

5
arch/arm/mach-s5pv310/cpu.c
View File

@ -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),

139
arch/arm/mach-s5pv310/dev-pd.c 100644
View File

@ -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,
},
},
},
};

2
arch/arm/mach-s5pv310/include/mach/map.h
View File

@ -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)

30
arch/arm/mach-s5pv310/include/mach/regs-pmu.h 100644
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@ -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 */

8
arch/arm/mach-s5pv310/mach-smdkc210.c
View File

@ -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)

8
arch/arm/mach-s5pv310/mach-smdkv310.c
View File

@ -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)

1
arch/arm/plat-s5p/include/plat/map-s5p.h
View File

@ -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)

2
arch/arm/plat-samsung/include/plat/devs.h
View File

@ -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