From 830145796a5c8f1ca3f87ea619063c1d99a57df5 Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Sun, 6 Nov 2011 13:54:56 +0900 Subject: ARM: EXYNOS: Add ARCH_EXYNOS and reorganize arch/arm/mach-exynos The arch/arm/mach-exynos4 directory (CONFIG_ARCH_EXYNOS4) has made for plaforms based on EXYNOS4 SoCs. But since upcoming Samsung's SoCs such as EXYNOS5 (ARM Cortex A15) can reuse most codes in current mach-exynos4, one mach-exynos directory will be used for them. This patch changes to CONFIG_ARCH_EXYNOS (arch/arm/mach-exynos) but keeps original CONFIG_ARCH_EXYNOS4 in mach-exynos/Kconfig to avoid changing in driver side. Cc: Arnd Bergmann Cc: Russell King Signed-off-by: Kukjin Kim --- arch/arm/mach-exynos/dev-pd.c | 139 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 139 insertions(+) create mode 100644 arch/arm/mach-exynos/dev-pd.c (limited to 'arch/arm/mach-exynos/dev-pd.c') diff --git a/arch/arm/mach-exynos/dev-pd.c b/arch/arm/mach-exynos/dev-pd.c new file mode 100644 index 000000000000..3273f25d6a75 --- /dev/null +++ b/arch/arm/mach-exynos/dev-pd.c @@ -0,0 +1,139 @@ +/* linux/arch/arm/mach-exynos4/dev-pd.c + * + * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * EXYNOS4 - 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 +#include +#include +#include + +#include + +#include + +static int exynos4_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 exynos4_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 exynos4_device_pd[] = { + { + .name = "samsung-pd", + .id = 0, + .dev = { + .platform_data = &(struct samsung_pd_info) { + .enable = exynos4_pd_enable, + .disable = exynos4_pd_disable, + .base = S5P_PMU_MFC_CONF, + }, + }, + }, { + .name = "samsung-pd", + .id = 1, + .dev = { + .platform_data = &(struct samsung_pd_info) { + .enable = exynos4_pd_enable, + .disable = exynos4_pd_disable, + .base = S5P_PMU_G3D_CONF, + }, + }, + }, { + .name = "samsung-pd", + .id = 2, + .dev = { + .platform_data = &(struct samsung_pd_info) { + .enable = exynos4_pd_enable, + .disable = exynos4_pd_disable, + .base = S5P_PMU_LCD0_CONF, + }, + }, + }, { + .name = "samsung-pd", + .id = 3, + .dev = { + .platform_data = &(struct samsung_pd_info) { + .enable = exynos4_pd_enable, + .disable = exynos4_pd_disable, + .base = S5P_PMU_LCD1_CONF, + }, + }, + }, { + .name = "samsung-pd", + .id = 4, + .dev = { + .platform_data = &(struct samsung_pd_info) { + .enable = exynos4_pd_enable, + .disable = exynos4_pd_disable, + .base = S5P_PMU_TV_CONF, + }, + }, + }, { + .name = "samsung-pd", + .id = 5, + .dev = { + .platform_data = &(struct samsung_pd_info) { + .enable = exynos4_pd_enable, + .disable = exynos4_pd_disable, + .base = S5P_PMU_CAM_CONF, + }, + }, + }, { + .name = "samsung-pd", + .id = 6, + .dev = { + .platform_data = &(struct samsung_pd_info) { + .enable = exynos4_pd_enable, + .disable = exynos4_pd_disable, + .base = S5P_PMU_GPS_CONF, + }, + }, + }, +}; -- cgit v1.2.3