Merge branch 'next/devel' of ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc

* 'next/devel' of ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc: (128 commits)
  ARM: S5P64X0: External Interrupt Support
  ARM: EXYNOS4: Enable MFC on Samsung NURI
  ARM: EXYNOS4: Enable MFC on universal_c210
  ARM: S5PV210: Enable MFC on Goni
  ARM: S5P: Add support for MFC device
  ARM: EXYNOS4: Add support FIMD on SMDKC210
  ARM: EXYNOS4: Add platform device and helper functions for FIMD
  ARM: EXYNOS4: Add resource definition for FIMD
  ARM: EXYNOS4: Change devname for FIMD clkdev
  ARM: SAMSUNG: Add IRQ_I2S0 definition
  ARM: SAMSUNG: Add platform device for idma
  ARM: EXYNOS4: Add more registers to be saved and restored for PM
  ARM: EXYNOS4: Add more register addresses of CMU
  ARM: EXYNOS4: Add platform device for dwmci driver
  ARM: EXYNOS4: configure rtc-s3c on NURI
  ARM: EXYNOS4: configure MAX8903 secondary charger on NURI
  ARM: EXYNOS4: configure ADC on NURI
  ARM: EXYNOS4: configure MAX17042 fuel gauge on NURI
  ARM: EXYNOS4: configure regulators and PMIC(MAX8997) on NURI
  ARM: EXYNOS4: Increase NR_IRQS for devices with more IRQs
  ...

Fix up tons of silly conflicts:
 - arch/arm/mach-davinci/include/mach/psc.h
 - arch/arm/mach-exynos4/Kconfig
 - arch/arm/mach-exynos4/mach-smdkc210.c
 - arch/arm/mach-exynos4/pm.c
 - arch/arm/mach-imx/mm-imx1.c
 - arch/arm/mach-imx/mm-imx21.c
 - arch/arm/mach-imx/mm-imx25.c
 - arch/arm/mach-imx/mm-imx27.c
 - arch/arm/mach-imx/mm-imx31.c
 - arch/arm/mach-imx/mm-imx35.c
 - arch/arm/mach-mx5/mm.c
 - arch/arm/mach-s5pv210/mach-goni.c
 - arch/arm/mm/Kconfig

1 files changed, 165 insertions, 108 deletions

diff --git a/arch/arm/mach-exynos4/pm.c b/arch/arm/mach-exynos4/pm.c
index 533c28f758ca..bc6ca9482de1 100644
--- a/arch/arm/mach-exynos4/pm.c
+++ b/arch/arm/mach-exynos4/pm.c
@@ -18,92 +18,23 @@
 #include <linux/suspend.h>
 #include <linux/syscore_ops.h>
 #include <linux/io.h>
+#include <linux/err.h>
+#include <linux/clk.h>
 
 #include <asm/cacheflush.h>
 #include <asm/hardware/cache-l2x0.h>
 
 #include <plat/cpu.h>
 #include <plat/pm.h>
+#include <plat/pll.h>
+#include <plat/regs-srom.h>
 
 #include <mach/regs-irq.h>
 #include <mach/regs-gpio.h>
 #include <mach/regs-clock.h>
 #include <mach/regs-pmu.h>
 #include <mach/pm-core.h>
-
-static struct sleep_save exynos4_sleep[] = {
-	{ .reg = S5P_ARM_CORE0_LOWPWR			, .val = 0x2, },
-	{ .reg = S5P_DIS_IRQ_CORE0			, .val = 0x0, },
-	{ .reg = S5P_DIS_IRQ_CENTRAL0			, .val = 0x0, },
-	{ .reg = S5P_ARM_CORE1_LOWPWR			, .val = 0x2, },
-	{ .reg = S5P_DIS_IRQ_CORE1			, .val = 0x0, },
-	{ .reg = S5P_DIS_IRQ_CENTRAL1			, .val = 0x0, },
-	{ .reg = S5P_ARM_COMMON_LOWPWR			, .val = 0x2, },
-	{ .reg = S5P_L2_0_LOWPWR			, .val = 0x3, },
-	{ .reg = S5P_L2_1_LOWPWR			, .val = 0x3, },
-	{ .reg = S5P_CMU_ACLKSTOP_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_CMU_SCLKSTOP_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_CMU_RESET_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_APLL_SYSCLK_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_MPLL_SYSCLK_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_VPLL_SYSCLK_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_EPLL_SYSCLK_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_CMU_CLKSTOP_GPS_ALIVE_LOWPWR	, .val = 0x0, },
-	{ .reg = S5P_CMU_RESET_GPSALIVE_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_CMU_CLKSTOP_CAM_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_CMU_CLKSTOP_TV_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_CMU_CLKSTOP_MFC_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_CMU_CLKSTOP_G3D_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_CMU_CLKSTOP_LCD0_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_CMU_CLKSTOP_LCD1_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_CMU_CLKSTOP_MAUDIO_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_CMU_CLKSTOP_GPS_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_CMU_RESET_CAM_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_CMU_RESET_TV_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_CMU_RESET_MFC_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_CMU_RESET_G3D_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_CMU_RESET_LCD0_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_CMU_RESET_LCD1_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_CMU_RESET_MAUDIO_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_CMU_RESET_GPS_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_TOP_BUS_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_TOP_RETENTION_LOWPWR		, .val = 0x1, },
-	{ .reg = S5P_TOP_PWR_LOWPWR			, .val = 0x3, },
-	{ .reg = S5P_LOGIC_RESET_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_ONENAND_MEM_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_MODIMIF_MEM_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_G2D_ACP_MEM_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_USBOTG_MEM_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_HSMMC_MEM_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_CSSYS_MEM_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_SECSS_MEM_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_PCIE_MEM_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_SATA_MEM_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_PAD_RETENTION_DRAM_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_PAD_RETENTION_MAUDIO_LOWPWR	, .val = 0x0, },
-	{ .reg = S5P_PAD_RETENTION_GPIO_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_PAD_RETENTION_UART_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_PAD_RETENTION_MMCA_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_PAD_RETENTION_MMCB_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_PAD_RETENTION_EBIA_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_PAD_RETENTION_EBIB_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_PAD_RETENTION_ISOLATION_LOWPWR	, .val = 0x0, },
-	{ .reg = S5P_PAD_RETENTION_ALV_SEL_LOWPWR	, .val = 0x0, },
-	{ .reg = S5P_XUSBXTI_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_XXTI_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_EXT_REGULATOR_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_GPIO_MODE_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_GPIO_MODE_MAUDIO_LOWPWR		, .val = 0x0, },
-	{ .reg = S5P_CAM_LOWPWR				, .val = 0x0, },
-	{ .reg = S5P_TV_LOWPWR				, .val = 0x0, },
-	{ .reg = S5P_MFC_LOWPWR				, .val = 0x0, },
-	{ .reg = S5P_G3D_LOWPWR				, .val = 0x0, },
-	{ .reg = S5P_LCD0_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_LCD1_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_MAUDIO_LOWPWR			, .val = 0x0, },
-	{ .reg = S5P_GPS_LOWPWR				, .val = 0x0, },
-	{ .reg = S5P_GPS_ALIVE_LOWPWR			, .val = 0x0, },
-};
+#include <mach/pmu.h>
 
 static struct sleep_save exynos4_set_clksrc[] = {
 	{ .reg = S5P_CLKSRC_MASK_TOP			, .val = 0x00000001, },
@@ -118,20 +49,28 @@ static struct sleep_save exynos4_set_clksrc[] = {
 	{ .reg = S5P_CLKSRC_MASK_DMC			, .val = 0x00010000, },
 };
 
+static struct sleep_save exynos4_epll_save[] = {
+	SAVE_ITEM(S5P_EPLL_CON0),
+	SAVE_ITEM(S5P_EPLL_CON1),
+};
+
+static struct sleep_save exynos4_vpll_save[] = {
+	SAVE_ITEM(S5P_VPLL_CON0),
+	SAVE_ITEM(S5P_VPLL_CON1),
+};
+
 static struct sleep_save exynos4_core_save[] = {
 	/* CMU side */
 	SAVE_ITEM(S5P_CLKDIV_LEFTBUS),
 	SAVE_ITEM(S5P_CLKGATE_IP_LEFTBUS),
 	SAVE_ITEM(S5P_CLKDIV_RIGHTBUS),
 	SAVE_ITEM(S5P_CLKGATE_IP_RIGHTBUS),
-	SAVE_ITEM(S5P_EPLL_CON0),
-	SAVE_ITEM(S5P_EPLL_CON1),
-	SAVE_ITEM(S5P_VPLL_CON0),
-	SAVE_ITEM(S5P_VPLL_CON1),
 	SAVE_ITEM(S5P_CLKSRC_TOP0),
 	SAVE_ITEM(S5P_CLKSRC_TOP1),
 	SAVE_ITEM(S5P_CLKSRC_CAM),
+	SAVE_ITEM(S5P_CLKSRC_TV),
 	SAVE_ITEM(S5P_CLKSRC_MFC),
+	SAVE_ITEM(S5P_CLKSRC_G3D),
 	SAVE_ITEM(S5P_CLKSRC_IMAGE),
 	SAVE_ITEM(S5P_CLKSRC_LCD0),
 	SAVE_ITEM(S5P_CLKSRC_LCD1),
@@ -158,6 +97,7 @@ static struct sleep_save exynos4_core_save[] = {
 	SAVE_ITEM(S5P_CLKDIV_PERIL4),
 	SAVE_ITEM(S5P_CLKDIV_PERIL5),
 	SAVE_ITEM(S5P_CLKDIV_TOP),
+	SAVE_ITEM(S5P_CLKSRC_MASK_TOP),
 	SAVE_ITEM(S5P_CLKSRC_MASK_CAM),
 	SAVE_ITEM(S5P_CLKSRC_MASK_TV),
 	SAVE_ITEM(S5P_CLKSRC_MASK_LCD0),
@@ -166,6 +106,7 @@ static struct sleep_save exynos4_core_save[] = {
 	SAVE_ITEM(S5P_CLKSRC_MASK_FSYS),
 	SAVE_ITEM(S5P_CLKSRC_MASK_PERIL0),
 	SAVE_ITEM(S5P_CLKSRC_MASK_PERIL1),
+	SAVE_ITEM(S5P_CLKDIV2_RATIO),
 	SAVE_ITEM(S5P_CLKGATE_SCLKCAM),
 	SAVE_ITEM(S5P_CLKGATE_IP_CAM),
 	SAVE_ITEM(S5P_CLKGATE_IP_TV),
@@ -186,8 +127,10 @@ static struct sleep_save exynos4_core_save[] = {
 	SAVE_ITEM(S5P_CLKGATE_IP_DMC),
 	SAVE_ITEM(S5P_CLKSRC_CPU),
 	SAVE_ITEM(S5P_CLKDIV_CPU),
+	SAVE_ITEM(S5P_CLKDIV_CPU + 0x4),
 	SAVE_ITEM(S5P_CLKGATE_SCLKCPU),
 	SAVE_ITEM(S5P_CLKGATE_IP_CPU),
+
 	/* GIC side */
 	SAVE_ITEM(S5P_VA_GIC_CPU + 0x000),
 	SAVE_ITEM(S5P_VA_GIC_CPU + 0x004),
@@ -270,6 +213,13 @@ static struct sleep_save exynos4_core_save[] = {
 	SAVE_ITEM(S5P_VA_COMBINER_BASE + 0x070),
 	SAVE_ITEM(S5P_VA_COMBINER_BASE + 0x080),
 	SAVE_ITEM(S5P_VA_COMBINER_BASE + 0x090),
+
+	/* SROM side */
+	SAVE_ITEM(S5P_SROM_BW),
+	SAVE_ITEM(S5P_SROM_BC0),
+	SAVE_ITEM(S5P_SROM_BC1),
+	SAVE_ITEM(S5P_SROM_BC2),
+	SAVE_ITEM(S5P_SROM_BC3),
 };
 
 static struct sleep_save exynos4_l2cc_save[] = {
@@ -280,37 +230,11 @@ static struct sleep_save exynos4_l2cc_save[] = {
 	SAVE_ITEM(S5P_VA_L2CC + L2X0_AUX_CTRL),
 };
 
+/* For Cortex-A9 Diagnostic and Power control register */
+static unsigned int save_arm_register[2];
+
 static int exynos4_cpu_suspend(unsigned long arg)
 {
-	unsigned long tmp;
-	unsigned long mask = 0xFFFFFFFF;
-
-	/* Setting Central Sequence Register for power down mode */
-
-	tmp = __raw_readl(S5P_CENTRAL_SEQ_CONFIGURATION);
-	tmp &= ~(S5P_CENTRAL_LOWPWR_CFG);
-	__raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION);
-
-	/* Setting Central Sequence option Register */
-
-	tmp = __raw_readl(S5P_CENTRAL_SEQ_OPTION);
-	tmp &= ~(S5P_USE_MASK);
-	tmp |= S5P_USE_STANDBY_WFI0;
-	__raw_writel(tmp, S5P_CENTRAL_SEQ_OPTION);
-
-	/* Clear all interrupt pending to avoid early wakeup */
-
-	__raw_writel(mask, (S5P_VA_GIC_DIST + 0x280));
-	__raw_writel(mask, (S5P_VA_GIC_DIST + 0x284));
-	__raw_writel(mask, (S5P_VA_GIC_DIST + 0x288));
-
-	/* Disable all interrupt */
-
-	__raw_writel(0x0, (S5P_VA_GIC_CPU + 0x000));
-	__raw_writel(0x0, (S5P_VA_GIC_DIST + 0x000));
-	__raw_writel(mask, (S5P_VA_GIC_DIST + 0x184));
-	__raw_writel(mask, (S5P_VA_GIC_DIST + 0x188));
-
 	outer_flush_all();
 
 	/* issue the standby signal into the pm unit. */
@@ -326,12 +250,14 @@ static void exynos4_pm_prepare(void)
 
 	s3c_pm_do_save(exynos4_core_save, ARRAY_SIZE(exynos4_core_save));
 	s3c_pm_do_save(exynos4_l2cc_save, ARRAY_SIZE(exynos4_l2cc_save));
+	s3c_pm_do_save(exynos4_epll_save, ARRAY_SIZE(exynos4_epll_save));
+	s3c_pm_do_save(exynos4_vpll_save, ARRAY_SIZE(exynos4_vpll_save));
 
 	tmp = __raw_readl(S5P_INFORM1);
 
 	/* Set value of power down register for sleep mode */
 
-	s3c_pm_do_restore_core(exynos4_sleep, ARRAY_SIZE(exynos4_sleep));
+	exynos4_sys_powerdown_conf(SYS_SLEEP);
 	__raw_writel(S5P_CHECK_SLEEP, S5P_INFORM1);
 
 	/* ensure at least INFORM0 has the resume address */
@@ -373,12 +299,80 @@ void exynos4_scu_enable(void __iomem *scu_base)
 	flush_cache_all();
 }
 
+static unsigned long pll_base_rate;
+
+static void exynos4_restore_pll(void)
+{
+	unsigned long pll_con, locktime, lockcnt;
+	unsigned long pll_in_rate;
+	unsigned int p_div, epll_wait = 0, vpll_wait = 0;
+
+	if (pll_base_rate == 0)
+		return;
+
+	pll_in_rate = pll_base_rate;
+
+	/* EPLL */
+	pll_con = exynos4_epll_save[0].val;
+
+	if (pll_con & (1 << 31)) {
+		pll_con &= (PLL46XX_PDIV_MASK << PLL46XX_PDIV_SHIFT);
+		p_div = (pll_con >> PLL46XX_PDIV_SHIFT);
+
+		pll_in_rate /= 1000000;
+
+		locktime = (3000 / pll_in_rate) * p_div;
+		lockcnt = locktime * 10000 / (10000 / pll_in_rate);
+
+		__raw_writel(lockcnt, S5P_EPLL_LOCK);
+
+		s3c_pm_do_restore_core(exynos4_epll_save,
+					ARRAY_SIZE(exynos4_epll_save));
+		epll_wait = 1;
+	}
+
+	pll_in_rate = pll_base_rate;
+
+	/* VPLL */
+	pll_con = exynos4_vpll_save[0].val;
+
+	if (pll_con & (1 << 31)) {
+		pll_in_rate /= 1000000;
+		/* 750us */
+		locktime = 750;
+		lockcnt = locktime * 10000 / (10000 / pll_in_rate);
+
+		__raw_writel(lockcnt, S5P_VPLL_LOCK);
+
+		s3c_pm_do_restore_core(exynos4_vpll_save,
+					ARRAY_SIZE(exynos4_vpll_save));
+		vpll_wait = 1;
+	}
+
+	/* Wait PLL locking */
+
+	do {
+		if (epll_wait) {
+			pll_con = __raw_readl(S5P_EPLL_CON0);
+			if (pll_con & (1 << S5P_EPLLCON0_LOCKED_SHIFT))
+				epll_wait = 0;
+		}
+
+		if (vpll_wait) {
+			pll_con = __raw_readl(S5P_VPLL_CON0);
+			if (pll_con & (1 << S5P_VPLLCON0_LOCKED_SHIFT))
+				vpll_wait = 0;
+		}
+	} while (epll_wait || vpll_wait);
+}
+
 static struct sysdev_driver exynos4_pm_driver = {
 	.add		= exynos4_pm_add,
 };
 
 static __init int exynos4_pm_drvinit(void)
 {
+	struct clk *pll_base;
 	unsigned int tmp;
 
 	s3c_pm_init();
@@ -389,12 +383,69 @@ static __init int exynos4_pm_drvinit(void)
 	tmp |= ((0xFF << 8) | (0x1F << 1));
 	__raw_writel(tmp, S5P_WAKEUP_MASK);
 
+	pll_base = clk_get(NULL, "xtal");
+
+	if (!IS_ERR(pll_base)) {
+		pll_base_rate = clk_get_rate(pll_base);
+		clk_put(pll_base);
+	}
+
 	return sysdev_driver_register(&exynos4_sysclass, &exynos4_pm_driver);
 }
 arch_initcall(exynos4_pm_drvinit);
 
+static int exynos4_pm_suspend(void)
+{
+	unsigned long tmp;
+
+	/* Setting Central Sequence Register for power down mode */
+
+	tmp = __raw_readl(S5P_CENTRAL_SEQ_CONFIGURATION);
+	tmp &= ~S5P_CENTRAL_LOWPWR_CFG;
+	__raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION);
+
+	/* Save Power control register */
+	asm ("mrc p15, 0, %0, c15, c0, 0"
+	     : "=r" (tmp) : : "cc");
+	save_arm_register[0] = tmp;
+
+	/* Save Diagnostic register */
+	asm ("mrc p15, 0, %0, c15, c0, 1"
+	     : "=r" (tmp) : : "cc");
+	save_arm_register[1] = tmp;
+
+	return 0;
+}
+
 static void exynos4_pm_resume(void)
 {
+	unsigned long tmp;
+
+	/*
+	 * If PMU failed while entering sleep mode, WFI will be
+	 * ignored by PMU and then exiting cpu_do_idle().
+	 * S5P_CENTRAL_LOWPWR_CFG bit will not be set automatically
+	 * in this situation.
+	 */
+	tmp = __raw_readl(S5P_CENTRAL_SEQ_CONFIGURATION);
+	if (!(tmp & S5P_CENTRAL_LOWPWR_CFG)) {
+		tmp |= S5P_CENTRAL_LOWPWR_CFG;
+		__raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION);
+		/* No need to perform below restore code */
+		goto early_wakeup;
+	}
+	/* Restore Power control register */
+	tmp = save_arm_register[0];
+	asm volatile ("mcr p15, 0, %0, c15, c0, 0"
+		      : : "r" (tmp)
+		      : "cc");
+
+	/* Restore Diagnostic register */
+	tmp = save_arm_register[1];
+	asm volatile ("mcr p15, 0, %0, c15, c0, 1"
+		      : : "r" (tmp)
+		      : "cc");
+
 	/* For release retention */
 
 	__raw_writel((1 << 28), S5P_PAD_RET_MAUDIO_OPTION);
@@ -407,6 +458,8 @@ static void exynos4_pm_resume(void)
 
 	s3c_pm_do_restore_core(exynos4_core_save, ARRAY_SIZE(exynos4_core_save));
 
+	exynos4_restore_pll();
+
 	exynos4_scu_enable(S5P_VA_SCU);
 
 #ifdef CONFIG_CACHE_L2X0
@@ -415,9 +468,13 @@ static void exynos4_pm_resume(void)
 	/* enable L2X0*/
 	writel_relaxed(1, S5P_VA_L2CC + L2X0_CTRL);
 #endif
+
+early_wakeup:
+	return;
 }
 
 static struct syscore_ops exynos4_pm_syscore_ops = {
+	.suspend	= exynos4_pm_suspend,
 	.resume		= exynos4_pm_resume,
 };