Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC platform updates from Olof Johansson:
 "Most of these are smaller fixes that have accrued, and some continued
  cleanup of OMAP platforms towards shared frameworks.

  One new SoC from Atmel/Microchip: sam9x60"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (35 commits)
  ARM: OMAP2+: Fix undefined reference to omap_secure_init
  ARM: s3c64xx: Drop unneeded select of TIMER_OF
  ARM: exynos: Drop unneeded select of MIGHT_HAVE_CACHE_L2X0
  ARM: s3c24xx: Switch to atomic pwm API in rx1950
  ARM: OMAP2+: sleep43xx: Call secure suspend/resume handlers
  ARM: OMAP2+: Use ARM SMC Calling Convention when OP-TEE is available
  ARM: OMAP2+: Introduce check for OP-TEE in omap_secure_init()
  ARM: OMAP2+: Add omap_secure_init callback hook for secure initialization
  ARM: at91: Documentation: add sam9x60 product and datasheet
  ARM: at91: pm: use of_device_id array to find the proper shdwc node
  ARM: at91: pm: use SAM9X60 PMC's compatible
  ARM: imx: only select ARM_ERRATA_814220 for ARMv7-A
  ARM: zynq: use physical cpuid in zynq_slcr_cpu_stop/start
  ARM: tegra: Use clk_m CPU on Tegra124 LP1 resume
  ARM: tegra: Modify reshift divider during LP1
  ARM: tegra: Enable PLLP bypass during Tegra124 LP1
  ARM: samsung: Rename Samsung and Exynos to lowercase
  ARM: exynos: Correct the help text for platform Kconfig option
  ARM: bcm: Select ARM_AMBA for ARCH_BRCMSTB
  ARM: brcmstb: Add debug UART entry for 7216
  ...

Documentation/arm/microchip.rst

@@ -92,6 +92,12 @@ the Microchip website: http://www.microchip.com.
 
           http://ww1.microchip.com/downloads/en/DeviceDoc/DS60001517A.pdf
 
+      - sam9x60
+
+          * Datasheet
+
+          http://ww1.microchip.com/downloads/en/DeviceDoc/SAM9X60-Data-Sheet-DS60001579A.pdf
+
     * ARM Cortex-A5 based SoCs
       - sama5d3 family
 

arch/arm/Kconfig.debug

@@ -147,14 +147,14 @@ choice
 		    0x80024000      | 0xf0024000     | UART9
 
 	config DEBUG_AT91_RM9200_DBGU
-		bool "Kernel low-level debugging on AT91RM9200, AT91SAM9 DBGU"
+		bool "Kernel low-level debugging on AT91RM9200, AT91SAM9, SAM9X60 DBGU"
 		select DEBUG_AT91_UART
-		depends on SOC_AT91RM9200 || SOC_AT91SAM9
+		depends on SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAM9X60
 		help
 		  Say Y here if you want kernel low-level debugging support
 		  on the DBGU port of:
 		    at91rm9200, at91sam9260, at91sam9g20, at91sam9261,
-		    at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5
+		    at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5, sam9x60
 
 	config DEBUG_AT91_SAM9263_DBGU
 		bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU"

arch/arm/include/debug/brcmstb.S

@@ -31,6 +31,7 @@
 #define UARTA_7268		UARTA_7255
 #define UARTA_7271		UARTA_7268
 #define UARTA_7278		REG_PHYS_ADDR_V7(0x40c000)
+#define UARTA_7216		UARTA_7278
 #define UARTA_7364		REG_PHYS_ADDR(0x40b000)
 #define UARTA_7366		UARTA_7364
 #define UARTA_74371		REG_PHYS_ADDR(0x406b00)
@@ -82,17 +83,18 @@ ARM_BE8(	rev	\rv, \rv )
 
 		/* Chip specific detection starts here */
 20:		checkuart(\rp, \rv, 0x33900000, 3390)
-21:		checkuart(\rp, \rv, 0x72500000, 7250)
-22:		checkuart(\rp, \rv, 0x72550000, 7255)
-23:		checkuart(\rp, \rv, 0x72600000, 7260)
-24:		checkuart(\rp, \rv, 0x72680000, 7268)
-25:		checkuart(\rp, \rv, 0x72710000, 7271)
-26:		checkuart(\rp, \rv, 0x72780000, 7278)
-27:		checkuart(\rp, \rv, 0x73640000, 7364)
-28:		checkuart(\rp, \rv, 0x73660000, 7366)
-29:		checkuart(\rp, \rv, 0x07437100, 74371)
-30:		checkuart(\rp, \rv, 0x74390000, 7439)
-31:		checkuart(\rp, \rv, 0x74450000, 7445)
+21:		checkuart(\rp, \rv, 0x72160000, 7216)
+22:		checkuart(\rp, \rv, 0x72500000, 7250)
+23:		checkuart(\rp, \rv, 0x72550000, 7255)
+24:		checkuart(\rp, \rv, 0x72600000, 7260)
+25:		checkuart(\rp, \rv, 0x72680000, 7268)
+26:		checkuart(\rp, \rv, 0x72710000, 7271)
+27:		checkuart(\rp, \rv, 0x72780000, 7278)
+28:		checkuart(\rp, \rv, 0x73640000, 7364)
+29:		checkuart(\rp, \rv, 0x73660000, 7366)
+30:		checkuart(\rp, \rv, 0x07437100, 74371)
+31:		checkuart(\rp, \rv, 0x74390000, 7439)
+32:		checkuart(\rp, \rv, 0x74450000, 7445)
 
 		/* No valid UART found */
 90:		mov	\rp, #0

arch/arm/mach-at91/Kconfig

@@ -105,11 +105,28 @@ config SOC_AT91SAM9
 	    AT91SAM9X35
 	    AT91SAM9XE
 
+config SOC_SAM9X60
+	bool "SAM9X60"
+	depends on ARCH_MULTI_V5
+	select ATMEL_AIC5_IRQ
+	select ATMEL_PM if PM
+	select ATMEL_SDRAMC
+	select CPU_ARM926T
+	select HAVE_AT91_USB_CLK
+	select HAVE_AT91_GENERATED_CLK
+	select HAVE_AT91_SAM9X60_PLL
+	select MEMORY
+	select PINCTRL_AT91
+	select SOC_SAM_V4_V5
+	select SRAM if PM
+	help
+	  Select this if you are using Microchip's SAM9X60 SoC
+
 comment "Clocksource driver selection"
 
 config ATMEL_CLOCKSOURCE_PIT
 	bool "Periodic Interval Timer (PIT) support"
-	depends on SOC_AT91SAM9 || SOC_SAMA5
+	depends on SOC_AT91SAM9 || SOC_SAM9X60 || SOC_SAMA5
 	default SOC_AT91SAM9 || SOC_SAMA5
 	select ATMEL_PIT
 	help
@@ -119,7 +136,7 @@ config ATMEL_CLOCKSOURCE_PIT
 
 config ATMEL_CLOCKSOURCE_TCB
 	bool "Timer Counter Blocks (TCB) support"
-	default SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAMA5
+	default SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAM9X60 || SOC_SAMA5
 	select ATMEL_TCB_CLKSRC
 	help
 	  Select this to get a high precision clocksource based on a
@@ -154,6 +171,9 @@ config HAVE_AT91_AUDIO_PLL
 config HAVE_AT91_I2S_MUX_CLK
 	bool
 
+config HAVE_AT91_SAM9X60_PLL
+	bool
+
 config SOC_SAM_V4_V5
 	bool
 

arch/arm/mach-at91/Makefile

@@ -6,6 +6,7 @@
 # CPU-specific support
 obj-$(CONFIG_SOC_AT91RM9200)	+= at91rm9200.o
 obj-$(CONFIG_SOC_AT91SAM9)	+= at91sam9.o
+obj-$(CONFIG_SOC_SAM9X60)	+= sam9x60.o
 obj-$(CONFIG_SOC_SAMA5)		+= sama5.o
 obj-$(CONFIG_SOC_SAMV7)		+= samv7.o
 

arch/arm/mach-at91/at91sam9.c

@@ -31,21 +31,3 @@ DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM9")
 	.init_machine	= at91sam9_init,
 	.dt_compat	= at91_dt_board_compat,
 MACHINE_END
-
-static void __init sam9x60_init(void)
-{
-	of_platform_default_populate(NULL, NULL, NULL);
-
-	sam9x60_pm_init();
-}
-
-static const char *const sam9x60_dt_board_compat[] __initconst = {
-	"microchip,sam9x60",
-	NULL
-};
-
-DT_MACHINE_START(sam9x60_dt, "Microchip SAM9X60")
-	/* Maintainer: Microchip */
-	.init_machine	= sam9x60_init,
-	.dt_compat	= sam9x60_dt_board_compat,
-MACHINE_END

arch/arm/mach-at91/pm.c

@@ -691,6 +691,12 @@ static void __init at91_pm_use_default_mode(int pm_mode)
 		soc_pm.data.suspend_mode = AT91_PM_ULP0;
 }
 
+static const struct of_device_id atmel_shdwc_ids[] = {
+	{ .compatible = "atmel,sama5d2-shdwc" },
+	{ .compatible = "microchip,sam9x60-shdwc" },
+	{ /* sentinel. */ }
+};
+
 static void __init at91_pm_modes_init(void)
 {
 	struct device_node *np;
@@ -700,7 +706,7 @@ static void __init at91_pm_modes_init(void)
 	    !at91_is_pm_mode_active(AT91_PM_ULP1))
 		return;
 
-	np = of_find_compatible_node(NULL, NULL, "atmel,sama5d2-shdwc");
+	np = of_find_matching_node(NULL, atmel_shdwc_ids);
 	if (!np) {
 		pr_warn("%s: failed to find shdwc!\n", __func__);
 		goto ulp1_default;
@@ -751,6 +757,7 @@ static const struct of_device_id atmel_pmc_ids[] __initconst = {
 	{ .compatible = "atmel,sama5d3-pmc", .data = &pmc_infos[1] },
 	{ .compatible = "atmel,sama5d4-pmc", .data = &pmc_infos[1] },
 	{ .compatible = "atmel,sama5d2-pmc", .data = &pmc_infos[1] },
+	{ .compatible = "microchip,sam9x60-pmc", .data = &pmc_infos[1] },
 	{ /* sentinel */ },
 };
 
@@ -805,7 +812,7 @@ void __init at91rm9200_pm_init(void)
 
 void __init sam9x60_pm_init(void)
 {
-	if (!IS_ENABLED(CONFIG_SOC_AT91SAM9))
+	if (!IS_ENABLED(CONFIG_SOC_SAM9X60))
 		return;
 
 	at91_pm_modes_init();

arch/arm/mach-at91/sam9x60.c

+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Setup code for SAM9X60.
+ *
+ * Copyright (C) 2019 Microchip Technology Inc. and its subsidiaries
+ *
+ * Author: Claudiu Beznea <claudiu.beznea@microchip.com>
+ */
+
+#include <linux/of.h>
+#include <linux/of_platform.h>
+
+#include <asm/mach/arch.h>
+#include <asm/system_misc.h>
+
+#include "generic.h"
+
+static void __init sam9x60_init(void)
+{
+	of_platform_default_populate(NULL, NULL, NULL);
+
+	sam9x60_pm_init();
+}
+
+static const char *const sam9x60_dt_board_compat[] __initconst = {
+	"microchip,sam9x60",
+	NULL
+};
+
+DT_MACHINE_START(sam9x60_dt, "Microchip SAM9X60")
+	/* Maintainer: Microchip */
+	.init_machine	= sam9x60_init,
+	.dt_compat	= sam9x60_dt_board_compat,
+MACHINE_END

arch/arm/mach-bcm/Kconfig

@@ -211,6 +211,7 @@ config ARCH_BRCMSTB
 	bool "Broadcom BCM7XXX based boards"
 	depends on ARCH_MULTI_V7
 	select ARCH_HAS_RESET_CONTROLLER
+	select ARM_AMBA
 	select ARM_GIC
 	select ARM_ERRATA_798181 if SMP
 	select HAVE_ARM_ARCH_TIMER

arch/arm/mach-exynos/Kconfig

@@ -3,10 +3,10 @@
 # Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
 #		http://www.samsung.com/
 
-# Configuration options for the EXYNOS
+# Configuration options for the Samsung Exynos
 
 menuconfig ARCH_EXYNOS
-	bool "Samsung EXYNOS"
+	bool "Samsung Exynos"
 	depends on ARCH_MULTI_V7
 	select ARCH_HAS_HOLES_MEMORYMODEL
 	select ARCH_SUPPORTS_BIG_ENDIAN
@@ -42,7 +42,7 @@ menuconfig ARCH_EXYNOS
 	select POWER_RESET_SYSCON
 	select POWER_RESET_SYSCON_POWEROFF
 	help
-	  Support for SAMSUNG EXYNOS SoCs (EXYNOS4/5)
+	  Support for Samsung Exynos SoCs
 
 if ARCH_EXYNOS
 
@@ -52,63 +52,62 @@ config S5P_DEV_MFC
 	  Compile in setup memory (init) code for MFC
 
 config ARCH_EXYNOS3
-	bool "SAMSUNG EXYNOS3"
+	bool "Samsung Exynos3"
 	default y
 	select ARM_CPU_SUSPEND if PM
 	help
-	  Samsung EXYNOS3 (Cortex-A7) SoC based systems
+	  Samsung Exynos3 (Cortex-A7) SoC based systems
 
 config ARCH_EXYNOS4
-	bool "SAMSUNG EXYNOS4"
+	bool "Samsung Exynos4"
 	default y
 	select ARM_CPU_SUSPEND if PM_SLEEP
 	select CLKSRC_SAMSUNG_PWM if CPU_EXYNOS4210
 	select CPU_EXYNOS4210
 	select GIC_NON_BANKED
-	select MIGHT_HAVE_CACHE_L2X0
 	help
-	  Samsung EXYNOS4 (Cortex-A9) SoC based systems
+	  Samsung Exynos4 (Cortex-A9) SoC based systems
 
 config ARCH_EXYNOS5
-	bool "SAMSUNG EXYNOS5"
+	bool "Samsung Exynos5"
 	default y
 	help
-	  Samsung EXYNOS5 (Cortex-A15/A7) SoC based systems
+	  Samsung Exynos5 (Cortex-A15/A7) SoC based systems
 
-comment "EXYNOS SoCs"
+comment "Exynos SoCs"
 
 config SOC_EXYNOS3250
-	bool "SAMSUNG EXYNOS3250"
+	bool "Samsung Exynos3250"
 	default y
 	depends on ARCH_EXYNOS3
 
 config CPU_EXYNOS4210
-	bool "SAMSUNG EXYNOS4210"
+	bool "Samsung Exynos4210"
 	default y
 	depends on ARCH_EXYNOS4
 
 config SOC_EXYNOS4412
-	bool "SAMSUNG EXYNOS4412"
+	bool "Samsung Exynos4412"
 	default y
 	depends on ARCH_EXYNOS4
 
 config SOC_EXYNOS5250
-	bool "SAMSUNG EXYNOS5250"
+	bool "Samsung Exynos5250"
 	default y
 	depends on ARCH_EXYNOS5
 
 config SOC_EXYNOS5260
-	bool "SAMSUNG EXYNOS5260"
+	bool "Samsung Exynos5260"
 	default y
 	depends on ARCH_EXYNOS5
 
 config SOC_EXYNOS5410
-	bool "SAMSUNG EXYNOS5410"
+	bool "Samsung Exynos5410"
 	default y
 	depends on ARCH_EXYNOS5
 
 config SOC_EXYNOS5420
-	bool "SAMSUNG EXYNOS5420"
+	bool "Samsung Exynos5420"
 	default y
 	depends on ARCH_EXYNOS5
 	select EXYNOS_MCPM if SMP
@@ -116,7 +115,7 @@ config SOC_EXYNOS5420
 	select ARM_CPU_SUSPEND
 
 config SOC_EXYNOS5800
-	bool "SAMSUNG EXYNOS5800"
+	bool "Samsung EXYNOS5800"
 	default y
 	depends on SOC_EXYNOS5420
 

arch/arm/mach-exynos/common.h

@@ -3,7 +3,7 @@
  * Copyright (c) 2011 Samsung Electronics Co., Ltd.
  *		http://www.samsung.com
  *
- * Common Header for EXYNOS machines
+ * Common Header for Exynos machines
  */
 
 #ifndef __ARCH_ARM_MACH_EXYNOS_COMMON_H

arch/arm/mach-exynos/exynos.c

 // SPDX-License-Identifier: GPL-2.0
 //
-// SAMSUNG EXYNOS Flattened Device Tree enabled machine
+// Samsung Exynos Flattened Device Tree enabled machine
 //
 // Copyright (c) 2010-2014 Samsung Electronics Co., Ltd.
 //		http://www.samsung.com
@@ -192,7 +192,7 @@ static void __init exynos_dt_fixup(void)
 	of_fdt_limit_memory(8);
 }
 
-DT_MACHINE_START(EXYNOS_DT, "SAMSUNG EXYNOS (Flattened Device Tree)")
+DT_MACHINE_START(EXYNOS_DT, "Samsung Exynos (Flattened Device Tree)")
 	.l2c_aux_val	= 0x3c400001,
 	.l2c_aux_mask	= 0xc20fffff,
 	.smp		= smp_ops(exynos_smp_ops),

arch/arm/mach-exynos/include/mach/map.h

@@ -3,7 +3,7 @@
  * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
  *		http://www.samsung.com/
  *
- * EXYNOS - Memory map definitions
+ * Exynos - Memory map definitions
  */
 
 #ifndef __ASM_ARCH_MAP_H

arch/arm/mach-exynos/pm.c

@@ -3,7 +3,7 @@
 // Copyright (c) 2011-2014 Samsung Electronics Co., Ltd.
 //		http://www.samsung.com
 //
-// EXYNOS - Power Management support
+// Exynos - Power Management support
 //
 // Based on arch/arm/mach-s3c2410/pm.c
 // Copyright (c) 2006 Simtec Electronics

arch/arm/mach-exynos/smc.h

@@ -2,7 +2,7 @@
 /*
  *  Copyright (c) 2012 Samsung Electronics.
  *
- * EXYNOS - SMC Call
+ * Exynos - SMC Call
  */
 
 #ifndef __ASM_ARCH_EXYNOS_SMC_H

arch/arm/mach-exynos/suspend.c

@@ -3,7 +3,7 @@
 // Copyright (c) 2011-2014 Samsung Electronics Co., Ltd.
 //		http://www.samsung.com
 //
-// EXYNOS - Suspend support
+// Exynos - Suspend support
 //
 // Based on arch/arm/mach-s3c2410/pm.c
 // Copyright (c) 2006 Simtec Electronics

arch/arm/mach-imx/Kconfig

@@ -520,6 +520,7 @@ config SOC_IMX6UL
 	bool "i.MX6 UltraLite support"
 	select PINCTRL_IMX6UL
 	select SOC_IMX6
+	select ARM_ERRATA_814220
 
 	help
 	  This enables support for Freescale i.MX6 UltraLite processor.
@@ -556,6 +557,7 @@ config SOC_IMX7D
 	select PINCTRL_IMX7D
 	select SOC_IMX7D_CA7 if ARCH_MULTI_V7
 	select SOC_IMX7D_CM4 if ARM_SINGLE_ARMV7M
+	select ARM_ERRATA_814220 if ARCH_MULTI_V7
 	help
 		This enables support for Freescale i.MX7 Dual processor.
 

arch/arm/mach-imx/cpu.c

@@ -15,6 +15,11 @@
 #define OCOTP_UID_H	0x420
 #define OCOTP_UID_L	0x410
 
+#define OCOTP_ULP_UID_1		0x4b0
+#define OCOTP_ULP_UID_2		0x4c0
+#define OCOTP_ULP_UID_3		0x4d0
+#define OCOTP_ULP_UID_4		0x4e0
+
 unsigned int __mxc_cpu_type;
 static unsigned int imx_soc_revision;
 
@@ -164,6 +169,7 @@ struct device * __init imx_soc_device_init(void)
 		soc_id = "i.MX7D";
 		break;
 	case MXC_CPU_IMX7ULP:
+		ocotp_compat = "fsl,imx7ulp-ocotp";
 		soc_id = "i.MX7ULP";
 		break;
 	default:
@@ -178,12 +184,26 @@ struct device * __init imx_soc_device_init(void)
 	}
 
 	if (!IS_ERR_OR_NULL(ocotp)) {
+		if (__mxc_cpu_type == MXC_CPU_IMX7ULP) {
+			regmap_read(ocotp, OCOTP_ULP_UID_4, &val);
+			soc_uid = val & 0xffff;
+			regmap_read(ocotp, OCOTP_ULP_UID_3, &val);
+			soc_uid <<= 16;
+			soc_uid |= val & 0xffff;
+			regmap_read(ocotp, OCOTP_ULP_UID_2, &val);
+			soc_uid <<= 16;
+			soc_uid |= val & 0xffff;
+			regmap_read(ocotp, OCOTP_ULP_UID_1, &val);
+			soc_uid <<= 16;
+			soc_uid |= val & 0xffff;
+		} else {
 			regmap_read(ocotp, OCOTP_UID_H, &val);
 			soc_uid = val;
 			regmap_read(ocotp, OCOTP_UID_L, &val);
 			soc_uid <<= 32;
 			soc_uid |= val;
 		}
+	}
 
 	soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%d.%d",
 					   (imx_soc_revision >> 4) & 0xf,

arch/arm/mach-omap2/Makefile

@@ -16,10 +16,10 @@ hwmod-common				= omap_hwmod.o omap_hwmod_reset.o \
 clock-common				= clock.o
 secure-common				= omap-smc.o omap-secure.o
 
-obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(hwmod-common)
+obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(hwmod-common) $(secure-common)
 obj-$(CONFIG_ARCH_OMAP3) += $(omap-2-3-common) $(hwmod-common) $(secure-common)
 obj-$(CONFIG_ARCH_OMAP4) += $(hwmod-common) $(secure-common)
-obj-$(CONFIG_SOC_AM33XX) += $(hwmod-common)
+obj-$(CONFIG_SOC_AM33XX) += $(hwmod-common) $(secure-common)
 obj-$(CONFIG_SOC_OMAP5)  += $(hwmod-common) $(secure-common)
 obj-$(CONFIG_SOC_AM43XX) += $(hwmod-common) $(secure-common)
 obj-$(CONFIG_SOC_DRA7XX) += $(hwmod-common) $(secure-common)

arch/arm/mach-omap2/clockdomains43xx_data.c

@@ -84,6 +84,15 @@ static struct clockdomain l3s_tsc_43xx_clkdm = {
 	.flags		  = CLKDM_CAN_SWSUP,
 };
 
+static struct clockdomain lcdc_43xx_clkdm = {
+	.name		  = "lcdc_clkdm",
+	.pwrdm		  = { .name = "per_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_PER_INST,
+	.clkdm_offs	  = AM43XX_CM_PER_LCDC_CDOFFS,
+	.flags		  = CLKDM_CAN_SWSUP,
+};
+
 static struct clockdomain dss_43xx_clkdm = {
 	.name		  = "dss_clkdm",
 	.pwrdm		  = { .name = "per_pwrdm" },
@@ -173,6 +182,7 @@ static struct clockdomain *clockdomains_am43xx[] __initdata = {
 	&pruss_ocp_43xx_clkdm,
 	&ocpwp_l3_43xx_clkdm,
 	&l3s_tsc_43xx_clkdm,
+	&lcdc_43xx_clkdm,
 	&dss_43xx_clkdm,
 	&l3_aon_43xx_clkdm,
 	&emif_43xx_clkdm,

arch/arm/mach-omap2/common.h

@@ -255,7 +255,7 @@ extern void gic_dist_disable(void);
 extern void gic_dist_enable(void);
 extern bool gic_dist_disabled(void);
 extern void gic_timer_retrigger(void);
-extern void omap_smc1(u32 fn, u32 arg);
+extern void _omap_smc1(u32 fn, u32 arg);
 extern void omap4_sar_ram_init(void);
 extern void __iomem *omap4_get_sar_ram_base(void);
 extern void omap4_mpuss_early_init(void);

arch/arm/mach-omap2/io.c

@@ -51,6 +51,7 @@
 #include "prm33xx.h"
 #include "prm44xx.h"
 #include "opp2xxx.h"
+#include "omap-secure.h"
 
 /*
  * omap_clk_soc_init: points to a function that does the SoC-specific
@@ -430,6 +431,7 @@ void __init omap2420_init_early(void)
 	omap_hwmod_init_postsetup();
 	omap_clk_soc_init = omap2420_dt_clk_init;
 	rate_table = omap2420_rate_table;
+	omap_secure_init();
 }
 
 void __init omap2420_init_late(void)
@@ -454,6 +456,7 @@ void __init omap2430_init_early(void)
 	omap_hwmod_init_postsetup();
 	omap_clk_soc_init = omap2430_dt_clk_init;
 	rate_table = omap2430_rate_table;
+	omap_secure_init();
 }
 
 void __init omap2430_init_late(void)
@@ -481,6 +484,7 @@ void __init omap3_init_early(void)
 	omap3xxx_clockdomains_init();
 	omap3xxx_hwmod_init();
 	omap_hwmod_init_postsetup();
+	omap_secure_init();
 }
 
 void __init omap3430_init_early(void)
@@ -533,6 +537,7 @@ void __init ti814x_init_early(void)
 	dm814x_hwmod_init();
 	omap_hwmod_init_postsetup();
 	omap_clk_soc_init = dm814x_dt_clk_init;
+	omap_secure_init();
 }
 
 void __init ti816x_init_early(void)
@@ -549,6 +554,7 @@ void __init ti816x_init_early(void)
 	dm816x_hwmod_init();
 	omap_hwmod_init_postsetup();
 	omap_clk_soc_init = dm816x_dt_clk_init;
+	omap_secure_init();
 }
 #endif
 
@@ -566,6 +572,7 @@ void __init am33xx_init_early(void)
 	am33xx_hwmod_init();
 	omap_hwmod_init_postsetup();
 	omap_clk_soc_init = am33xx_dt_clk_init;
+	omap_secure_init();
 }
 
 void __init am33xx_init_late(void)
@@ -589,6 +596,7 @@ void __init am43xx_init_early(void)
 	omap_hwmod_init_postsetup();
 	omap_l2_cache_init();
 	omap_clk_soc_init = am43xx_dt_clk_init;
+	omap_secure_init();
 }
 
 void __init am43xx_init_late(void)
@@ -617,6 +625,7 @@ void __init omap4430_init_early(void)
 	omap_hwmod_init_postsetup();
 	omap_l2_cache_init();
 	omap_clk_soc_init = omap4xxx_dt_clk_init;
+	omap_secure_init();
 }
 
 void __init omap4430_init_late(void)
@@ -643,6 +652,7 @@ void __init omap5_init_early(void)
 	omap54xx_hwmod_init();
 	omap_hwmod_init_postsetup();
 	omap_clk_soc_init = omap5xxx_dt_clk_init;
+	omap_secure_init();
 }
 
 void __init omap5_init_late(void)
@@ -666,6 +676,7 @@ void __init dra7xx_init_early(void)
 	dra7xx_hwmod_init();
 	omap_hwmod_init_postsetup();
 	omap_clk_soc_init = dra7xx_dt_clk_init;
+	omap_secure_init();
 }
 
 void __init dra7xx_init_late(void)

arch/arm/mach-omap2/omap-iommu.c

@@ -8,36 +8,134 @@
 
 #include <linux/platform_device.h>
 #include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/list.h>
 
-#include "omap_hwmod.h"
-#include "omap_device.h"
+#include "clockdomain.h"
 #include "powerdomain.h"
 
+struct pwrdm_link {
+	struct device *dev;
+	struct powerdomain *pwrdm;
+	struct list_head node;
+};
+
+static DEFINE_SPINLOCK(iommu_lock);
+static struct clockdomain *emu_clkdm;
+static atomic_t emu_count;
+
+static void omap_iommu_dra7_emu_swsup_config(struct platform_device *pdev,
+					     bool enable)
+{
+	struct device_node *np = pdev->dev.of_node;
+	unsigned long flags;
+
+	if (!of_device_is_compatible(np, "ti,dra7-dsp-iommu"))
+		return;
+
+	if (!emu_clkdm) {
+		emu_clkdm = clkdm_lookup("emu_clkdm");
+		if (WARN_ON_ONCE(!emu_clkdm))
+			return;
+	}
+
+	spin_lock_irqsave(&iommu_lock, flags);
+
+	if (enable && (atomic_inc_return(&emu_count) == 1))
+		clkdm_deny_idle(emu_clkdm);
+	else if (!enable && (atomic_dec_return(&emu_count) == 0))
+		clkdm_allow_idle(emu_clkdm);
+
+	spin_unlock_irqrestore(&iommu_lock, flags);
+}
+
+static struct powerdomain *_get_pwrdm(struct device *dev)
+{
+	struct clk *clk;
+	struct clk_hw_omap *hwclk;
+	struct clockdomain *clkdm;
+	struct powerdomain *pwrdm = NULL;
+	struct pwrdm_link *entry;
+	unsigned long flags;
+	static LIST_HEAD(cache);
+
+	spin_lock_irqsave(&iommu_lock, flags);
+
+	list_for_each_entry(entry, &cache, node) {
+		if (entry->dev == dev) {
+			pwrdm = entry->pwrdm;
+			break;
+		}
+	}
+
+	spin_unlock_irqrestore(&iommu_lock, flags);
+
+	if (pwrdm)
+		return pwrdm;
+
+	clk = of_clk_get(dev->of_node->parent, 0);
+	if (!clk) {
+		dev_err(dev, "no fck found\n");
+		return NULL;
+	}
+
+	hwclk = to_clk_hw_omap(__clk_get_hw(clk));
+	clk_put(clk);
+	if (!hwclk || !hwclk->clkdm_name) {
+		dev_err(dev, "no hwclk data\n");
+		return NULL;
+	}
+
+	clkdm = clkdm_lookup(hwclk->clkdm_name);
+	if (!clkdm) {
+		dev_err(dev, "clkdm not found: %s\n", hwclk->clkdm_name);
+		return NULL;
+	}
+
+	pwrdm = clkdm_get_pwrdm(clkdm);
+	if (!pwrdm) {
+		dev_err(dev, "pwrdm not found: %s\n", clkdm->name);
+		return NULL;
+	}
+
+	entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+	if (entry) {
+		entry->dev = dev;
+		entry->pwrdm = pwrdm;
+		spin_lock_irqsave(&iommu_lock, flags);
+		list_add(&entry->node, &cache);
+		spin_unlock_irqrestore(&iommu_lock, flags);
+	}
+
+	return pwrdm;
+}
+
 int omap_iommu_set_pwrdm_constraint(struct platform_device *pdev, bool request,
 				    u8 *pwrst)
 {
 	struct powerdomain *pwrdm;
-	struct omap_device *od;
 	u8 next_pwrst;
+	int ret = 0;
 
-	od = to_omap_device(pdev);
-	if (!od)
-		return -ENODEV;
-
-	if (od->hwmods_cnt != 1)
-		return -EINVAL;
-
-	pwrdm = omap_hwmod_get_pwrdm(od->hwmods[0]);
+	pwrdm = _get_pwrdm(&pdev->dev);
 	if (!pwrdm)
-		return -EINVAL;
+		return -ENODEV;
 
-	if (request)
+	if (request) {
 		*pwrst = pwrdm_read_next_pwrst(pwrdm);
+		omap_iommu_dra7_emu_swsup_config(pdev, true);
+	}
 
 	if (*pwrst > PWRDM_POWER_RET)
-		return 0;
+		goto out;
 
 	next_pwrst = request ? PWRDM_POWER_ON : *pwrst;
 
-	return pwrdm_set_next_pwrst(pwrdm, next_pwrst);
+	ret = pwrdm_set_next_pwrst(pwrdm, next_pwrst);
+
+out:
+	if (!request)
+		omap_iommu_dra7_emu_swsup_config(pdev, false);
+
+	return ret;
 }

arch/arm/mach-omap2/omap-secure.c

@@ -8,18 +8,42 @@
  * Copyright (C) 2013 Pali Rohár <pali.rohar@gmail.com>
  */
 
+#include <linux/arm-smccc.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/memblock.h>
+#include <linux/of.h>
 
 #include <asm/cacheflush.h>
 #include <asm/memblock.h>
 
+#include "common.h"
 #include "omap-secure.h"
 
 static phys_addr_t omap_secure_memblock_base;
 
+bool optee_available;
+
+#define OMAP_SIP_SMC_STD_CALL_VAL(func_num) \
+	ARM_SMCCC_CALL_VAL(ARM_SMCCC_STD_CALL, ARM_SMCCC_SMC_32, \
+	ARM_SMCCC_OWNER_SIP, (func_num))
+
+static void __init omap_optee_init_check(void)
+{
+	struct device_node *np;
+
+	/*
+	 * We only check that the OP-TEE node is present and available. The
+	 * OP-TEE kernel driver is not needed for the type of interaction made
+	 * with OP-TEE here so the driver's status is not checked.
+	 */
+	np = of_find_node_by_path("/firmware/optee");
+	if (np && of_device_is_available(np))
+		optee_available = true;
+	of_node_put(np);
+}
+
 /**
  * omap_sec_dispatcher: Routine to dispatch low power secure
  * service routines
@@ -53,6 +77,27 @@ u32 omap_secure_dispatcher(u32 idx, u32 flag, u32 nargs, u32 arg1, u32 arg2,
 	return ret;
 }
 
+void omap_smccc_smc(u32 fn, u32 arg)
+{
+	struct arm_smccc_res res;
+
+	arm_smccc_smc(OMAP_SIP_SMC_STD_CALL_VAL(fn), arg,
+		      0, 0, 0, 0, 0, 0, &res);
+	WARN(res.a0, "Secure function call 0x%08x failed\n", fn);
+}
+
+void omap_smc1(u32 fn, u32 arg)
+{
+	/*
+	 * If this platform has OP-TEE installed we use ARM SMC calls
+	 * otherwise fall back to the OMAP ROM style calls.
+	 */
+	if (optee_available)
+		omap_smccc_smc(fn, arg);
+	else
+		_omap_smc1(fn, arg);
+}
+
 /* Allocate the memory to save secure ram */
 int __init omap_secure_ram_reserve_memblock(void)
 {
@@ -163,3 +208,8 @@ u32 rx51_secure_rng_call(u32 ptr, u32 count, u32 flag)
 				      NO_FLAG,
 				      3, ptr, count, flag, 0);
 }
+
+void __init omap_secure_init(void)
+{
+	omap_optee_init_check();
+}

arch/arm/mach-omap2/omap-secure.h

@@ -10,6 +10,8 @@
 #ifndef OMAP_ARCH_OMAP_SECURE_H
 #define OMAP_ARCH_OMAP_SECURE_H
 
+#include <linux/types.h>
+
 /* Monitor error code */
 #define  API_HAL_RET_VALUE_NS2S_CONVERSION_ERROR	0xFFFFFFFE
 #define  API_HAL_RET_VALUE_SERVICE_UNKNWON		0xFFFFFFFF
@@ -51,6 +53,9 @@
 #define OMAP4_PPA_L2_POR_INDEX		0x23
 #define OMAP4_PPA_CPU_ACTRL_SMP_INDEX	0x25
 
+#define AM43xx_PPA_SVC_PM_SUSPEND	0x71
+#define AM43xx_PPA_SVC_PM_RESUME	0x72
+
 /* Secure RX-51 PPA (Primary Protected Application) APIs */
 #define RX51_PPA_HWRNG			29
 #define RX51_PPA_L2_INVAL		40
@@ -60,6 +65,8 @@
 
 extern u32 omap_secure_dispatcher(u32 idx, u32 flag, u32 nargs,
 				u32 arg1, u32 arg2, u32 arg3, u32 arg4);
+extern void omap_smccc_smc(u32 fn, u32 arg);
+extern void omap_smc1(u32 fn, u32 arg);
 extern u32 omap_smc2(u32 id, u32 falg, u32 pargs);
 extern u32 omap_smc3(u32 id, u32 process, u32 flag, u32 pargs);
 extern phys_addr_t omap_secure_ram_mempool_base(void);
@@ -72,6 +79,9 @@ extern u32 rx51_secure_dispatcher(u32 idx, u32 process, u32 flag, u32 nargs,
 extern u32 rx51_secure_update_aux_cr(u32 set_bits, u32 clear_bits);
 extern u32 rx51_secure_rng_call(u32 ptr, u32 count, u32 flag);
 
+extern bool optee_available;
+void omap_secure_init(void);
+
 #ifdef CONFIG_SOC_HAS_REALTIME_COUNTER
 void set_cntfreq(void);
 #else

arch/arm/mach-omap2/omap-smc.S

@@ -18,18 +18,18 @@
  * the monitor API number. It uses few CPU registers
  * internally and hence they need be backed up including
  * link register "lr".
- * Function signature : void omap_smc1(u32 fn, u32 arg)
+ * Function signature : void _omap_smc1(u32 fn, u32 arg)
  */
 	.arch armv7-a
 	.arch_extension sec
-ENTRY(omap_smc1)
+ENTRY(_omap_smc1)
 	stmfd   sp!, {r2-r12, lr}
 	mov	r12, r0
 	mov 	r0, r1
 	dsb
 	smc	#0
 	ldmfd   sp!, {r2-r12, pc}
-ENDPROC(omap_smc1)
+ENDPROC(_omap_smc1)
 
 /**
  * u32 omap_smc2(u32 id, u32 falg, u32 pargs)

arch/arm/mach-omap2/pdata-quirks.c

@@ -23,6 +23,7 @@
 #include <linux/platform_data/ti-sysc.h>
 #include <linux/platform_data/wkup_m3.h>
 #include <linux/platform_data/asoc-ti-mcbsp.h>
+#include <linux/platform_data/ti-prm.h>
 
 #include "clockdomain.h"
 #include "common.h"
@@ -42,6 +43,17 @@ struct pdata_init {
 static struct of_dev_auxdata omap_auxdata_lookup[];
 static struct twl4030_gpio_platform_data twl_gpio_auxdata;
 
+#if IS_ENABLED(CONFIG_OMAP_IOMMU)
+int omap_iommu_set_pwrdm_constraint(struct platform_device *pdev, bool request,
+				    u8 *pwrst);
+#else
+static inline int omap_iommu_set_pwrdm_constraint(struct platform_device *pdev,
+						  bool request, u8 *pwrst)
+{
+	return 0;
+}
+#endif
+
 #ifdef CONFIG_MACH_NOKIA_N8X0
 static void __init omap2420_n8x0_legacy_init(void)
 {
@@ -260,16 +272,6 @@ static void __init omap3_pandora_legacy_init(void)
 }
 #endif /* CONFIG_ARCH_OMAP3 */
 
-#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
-static struct iommu_platform_data omap4_iommu_pdata = {
-	.reset_name = "mmu_cache",
-	.assert_reset = omap_device_assert_hardreset,
-	.deassert_reset = omap_device_deassert_hardreset,
-	.device_enable = omap_device_enable,
-	.device_idle = omap_device_idle,
-};
-#endif
-
 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
 static struct wkup_m3_platform_data wkup_m3_data = {
 	.reset_name = "wkup_m3",
@@ -285,6 +287,10 @@ static void __init omap5_uevm_legacy_init(void)
 #endif
 
 #ifdef CONFIG_SOC_DRA7XX
+static struct iommu_platform_data dra7_ipu1_dsp_iommu_pdata = {
+	.set_pwrdm_constraint = omap_iommu_set_pwrdm_constraint,
+};
+
 static struct omap_hsmmc_platform_data dra7_hsmmc_data_mmc1;
 static struct omap_hsmmc_platform_data dra7_hsmmc_data_mmc2;
 static struct omap_hsmmc_platform_data dra7_hsmmc_data_mmc3;
@@ -412,6 +418,12 @@ void omap_pcs_legacy_init(int irq, void (*rearm)(void))
 	pcs_pdata.rearm = rearm;
 }
 
+static struct ti_prm_platform_data ti_prm_pdata = {
+	.clkdm_deny_idle = clkdm_deny_idle,
+	.clkdm_allow_idle = clkdm_allow_idle,
+	.clkdm_lookup = clkdm_lookup,
+};
+
 /*
  * GPIOs for TWL are initialized by the I2C bus and need custom
  * handing until DSS has device tree bindings.
@@ -492,10 +504,6 @@ static struct of_dev_auxdata omap_auxdata_lookup[] = {
 		       &wkup_m3_data),
 #endif
 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
-	OF_DEV_AUXDATA("ti,omap4-iommu", 0x4a066000, "4a066000.mmu",
-		       &omap4_iommu_pdata),
-	OF_DEV_AUXDATA("ti,omap4-iommu", 0x55082000, "55082000.mmu",
-		       &omap4_iommu_pdata),
 	OF_DEV_AUXDATA("ti,omap4-smartreflex-iva", 0x4a0db000,
 		       "4a0db000.smartreflex", &omap_sr_pdata[OMAP_SR_IVA]),
 	OF_DEV_AUXDATA("ti,omap4-smartreflex-core", 0x4a0dd000,
@@ -510,10 +518,17 @@ static struct of_dev_auxdata omap_auxdata_lookup[] = {
 		       &dra7_hsmmc_data_mmc2),
 	OF_DEV_AUXDATA("ti,dra7-hsmmc", 0x480ad000, "480ad000.mmc",
 		       &dra7_hsmmc_data_mmc3),
+	OF_DEV_AUXDATA("ti,dra7-dsp-iommu", 0x40d01000, "40d01000.mmu",
+		       &dra7_ipu1_dsp_iommu_pdata),
+	OF_DEV_AUXDATA("ti,dra7-dsp-iommu", 0x41501000, "41501000.mmu",
+		       &dra7_ipu1_dsp_iommu_pdata),
+	OF_DEV_AUXDATA("ti,dra7-iommu", 0x58882000, "58882000.mmu",
+		       &dra7_ipu1_dsp_iommu_pdata),
 #endif
 	/* Common auxdata */
 	OF_DEV_AUXDATA("ti,sysc", 0, NULL, &ti_sysc_pdata),
 	OF_DEV_AUXDATA("pinctrl-single", 0, NULL, &pcs_pdata),
+	OF_DEV_AUXDATA("ti,omap-prm-inst", 0, NULL, &ti_prm_pdata),
 	{ /* sentinel */ },
 };
 

arch/arm/mach-omap2/pm33xx-core.c

@@ -28,6 +28,7 @@
 #include "prm33xx.h"
 #include "soc.h"
 #include "sram.h"
+#include "omap-secure.h"
 
 static struct powerdomain *cefuse_pwrdm, *gfx_pwrdm, *per_pwrdm, *mpu_pwrdm;
 static struct clockdomain *gfx_l4ls_clkdm;
@@ -166,6 +167,16 @@ static int am43xx_suspend(unsigned int state, int (*fn)(unsigned long),
 {
 	int ret = 0;
 
+	/* Suspend secure side on HS devices */
+	if (omap_type() != OMAP2_DEVICE_TYPE_GP) {
+		if (optee_available)
+			omap_smccc_smc(AM43xx_PPA_SVC_PM_SUSPEND, 0);
+		else
+			omap_secure_dispatcher(AM43xx_PPA_SVC_PM_SUSPEND,
+					       FLAG_START_CRITICAL,
+					       0, 0, 0, 0, 0);
+	}
+
 	amx3_pre_suspend_common();
 	scu_power_mode(scu_base, SCU_PM_POWEROFF);
 	ret = cpu_suspend(args, fn);
@@ -174,6 +185,19 @@ static int am43xx_suspend(unsigned int state, int (*fn)(unsigned long),
 	if (!am43xx_check_off_mode_enable())
 		amx3_post_suspend_common();
 
+	/*
+	 * Resume secure side on HS devices.
+	 *
+	 * Note that even on systems with OP-TEE available this resume call is
+	 * issued to the ROM. This is because upon waking from suspend the ROM
+	 * is restored as the secure monitor. On systems with OP-TEE ROM will
+	 * restore OP-TEE during this call.
+	 */
+	if (omap_type() != OMAP2_DEVICE_TYPE_GP)
+		omap_secure_dispatcher(AM43xx_PPA_SVC_PM_RESUME,
+				       FLAG_START_CRITICAL,
+				       0, 0, 0, 0, 0);
+
 	return ret;
 }
 

arch/arm/mach-omap2/prcm43xx.h

@@ -68,6 +68,7 @@
 #define AM43XX_CM_PER_ICSS_CDOFFS			0x0300
 #define AM43XX_CM_PER_L4LS_CDOFFS			0x0400
 #define AM43XX_CM_PER_EMIF_CDOFFS			0x0700
+#define AM43XX_CM_PER_LCDC_CDOFFS			0x0800
 #define AM43XX_CM_PER_DSS_CDOFFS			0x0a00
 #define AM43XX_CM_PER_CPSW_CDOFFS			0x0b00
 #define AM43XX_CM_PER_OCPWP_L3_CDOFFS			0x0c00

arch/arm/mach-s3c24xx/Kconfig

@@ -19,12 +19,12 @@ config PLAT_S3C24XX
 
 
 
-menu "SAMSUNG S3C24XX SoCs Support"
+menu "Samsung S3C24XX SoCs Support"
 
 comment "S3C24XX SoCs"
 
 config CPU_S3C2410
-	bool "SAMSUNG S3C2410"
+	bool "Samsung S3C2410"
 	default y
 	select CPU_ARM920T
 	select S3C2410_COMMON_CLK
@@ -35,7 +35,7 @@ config CPU_S3C2410
 	  of Samsung Mobile CPUs.
 
 config CPU_S3C2412
-	bool "SAMSUNG S3C2412"
+	bool "Samsung S3C2412"
 	select CPU_ARM926T
 	select S3C2412_COMMON_CLK
 	select S3C2412_PM if PM_SLEEP
@@ -43,7 +43,7 @@ config CPU_S3C2412
 	  Support for the S3C2412 and S3C2413 SoCs from the S3C24XX line
 
 config CPU_S3C2416
-	bool "SAMSUNG S3C2416/S3C2450"
+	bool "Samsung S3C2416/S3C2450"
 	select CPU_ARM926T
 	select S3C2416_PM if PM_SLEEP
 	select S3C2443_COMMON_CLK
@@ -51,7 +51,7 @@ config CPU_S3C2416
 	  Support for the S3C2416 SoC from the S3C24XX line
 
 config CPU_S3C2440
-	bool "SAMSUNG S3C2440"
+	bool "Samsung S3C2440"
 	select CPU_ARM920T
 	select S3C2410_COMMON_CLK
 	select S3C2410_PM if PM_SLEEP
@@ -59,7 +59,7 @@ config CPU_S3C2440
 	  Support for S3C2440 Samsung Mobile CPU based systems.
 
 config CPU_S3C2442
-	bool "SAMSUNG S3C2442"
+	bool "Samsung S3C2442"
 	select CPU_ARM920T
 	select S3C2410_COMMON_CLK
 	select S3C2410_PM if PM_SLEEP
@@ -71,7 +71,7 @@ config CPU_S3C244X
 	depends on CPU_S3C2440 || CPU_S3C2442
 
 config CPU_S3C2443
-	bool "SAMSUNG S3C2443"
+	bool "Samsung S3C2443"
 	select CPU_ARM920T
 	select S3C2443_COMMON_CLK
 	help
@@ -591,6 +591,6 @@ config PM_H1940
 	help
 	  Internal node for H1940 and related PM
 
-endmenu	# SAMSUNG S3C24XX SoCs Support
+endmenu	# Samsung S3C24XX SoCs Support
 
 endif	# ARCH_S3C24XX

arch/arm/mach-s3c24xx/mach-rx1950.c

@@ -377,6 +377,7 @@ static struct pwm_lookup rx1950_pwm_lookup[] = {
 };
 
 static struct pwm_device *lcd_pwm;
+static struct pwm_state lcd_pwm_state;
 
 static void rx1950_lcd_power(int enable)
 {
@@ -429,15 +430,16 @@ static void rx1950_lcd_power(int enable)
 
 		/* GPB1->OUTPUT, GPB1->0 */
 		gpio_direction_output(S3C2410_GPB(1), 0);
-		pwm_config(lcd_pwm, 0, LCD_PWM_PERIOD);
-		pwm_disable(lcd_pwm);
+
+		lcd_pwm_state.enabled = false;
+		pwm_apply_state(lcd_pwm, &lcd_pwm_state);
 
 		/* GPC0->0, GPC10->0 */
 		gpio_direction_output(S3C2410_GPC(0), 0);
 		gpio_direction_output(S3C2410_GPC(10), 0);
 	} else {
-		pwm_config(lcd_pwm, LCD_PWM_DUTY, LCD_PWM_PERIOD);
-		pwm_enable(lcd_pwm);
+		lcd_pwm_state.enabled = true;
+		pwm_apply_state(lcd_pwm, &lcd_pwm_state);
 
 		gpio_direction_output(S3C2410_GPC(0), 1);
 		gpio_direction_output(S3C2410_GPC(5), 1);
@@ -493,10 +495,13 @@ static int rx1950_backlight_init(struct device *dev)
 	}
 
 	/*
-	 * FIXME: pwm_apply_args() should be removed when switching to
-	 * the atomic PWM API.
+	 * This is only required to initialize .polarity; all other values are
+	 * fixed in this driver.
 	 */
-	pwm_apply_args(lcd_pwm);
+	pwm_init_state(lcd_pwm, &lcd_pwm_state);
+
+	lcd_pwm_state.period = LCD_PWM_PERIOD;
+	lcd_pwm_state.duty_cycle = LCD_PWM_DUTY;
 
 	rx1950_lcd_power(1);
 	rx1950_bl_power(1);

arch/arm/mach-s3c64xx/Kconfig

@@ -336,7 +336,6 @@ config MACH_WLF_CRAGG_6410
 
 config MACH_S3C64XX_DT
 	bool "Samsung S3C6400/S3C6410 machine using Device Tree"
-	select TIMER_OF
 	select CPU_S3C6400
 	select CPU_S3C6410
 	select PINCTRL

arch/arm/mach-tegra/sleep-tegra30.S

@@ -59,6 +59,9 @@
 #define CLK_RESET_PLLX_MISC3_IDDQ	3
 #define CLK_RESET_PLLM_MISC_IDDQ	5
 #define CLK_RESET_PLLC_MISC_IDDQ	26
+#define CLK_RESET_PLLP_RESHIFT		0x528
+#define CLK_RESET_PLLP_RESHIFT_DEFAULT	0x3b
+#define CLK_RESET_PLLP_RESHIFT_ENABLE	0x3
 
 #define CLK_RESET_CLK_SOURCE_MSELECT	0x3b4
 
@@ -370,6 +373,18 @@ _pll_m_c_x_done:
 	pll_locked r1, r0, CLK_RESET_PLLC_BASE
 	pll_locked r1, r0, CLK_RESET_PLLX_BASE
 
+	tegra_get_soc_id TEGRA_APB_MISC_BASE, r1
+	cmp	r1, #TEGRA30
+	beq	1f
+
+	ldr	r1, [r0, #CLK_RESET_PLLP_BASE]
+	bic	r1, r1, #(1<<31)	@ disable PllP bypass
+	str	r1, [r0, #CLK_RESET_PLLP_BASE]
+
+	mov	r1, #CLK_RESET_PLLP_RESHIFT_DEFAULT
+	str	r1, [r0, #CLK_RESET_PLLP_RESHIFT]
+1:
+
 	mov32	r7, TEGRA_TMRUS_BASE
 	ldr	r1, [r7]
 	add	r1, r1, #LOCK_DELAY
@@ -630,9 +645,16 @@ tegra30_switch_cpu_to_clk32k:
 	str	r0, [r4, #PMC_PLLP_WB0_OVERRIDE]
 
 	/* disable PLLP, PLLA, PLLC and PLLX */
+	tegra_get_soc_id TEGRA_APB_MISC_BASE, r1
+	cmp	r1, #TEGRA30
 	ldr	r0, [r5, #CLK_RESET_PLLP_BASE]
+	orrne	r0, r0, #(1 << 31)	@ enable PllP bypass on fast cluster
 	bic	r0, r0, #(1 << 30)
 	str	r0, [r5, #CLK_RESET_PLLP_BASE]
+	beq	1f
+	mov	r0, #CLK_RESET_PLLP_RESHIFT_ENABLE
+	str	r0, [r5, #CLK_RESET_PLLP_RESHIFT]
+1:
 	ldr	r0, [r5, #CLK_RESET_PLLA_BASE]
 	bic	r0, r0, #(1 << 30)
 	str	r0, [r5, #CLK_RESET_PLLA_BASE]
@@ -648,8 +670,12 @@ tegra30_switch_cpu_to_clk32k:
 	pll_iddq_entry r1, r5, CLK_RESET_PLLX_MISC3, CLK_RESET_PLLX_MISC3_IDDQ
 _no_pll_in_iddq:
 
-	/* switch to CLKS */
-	mov	r0, #0	/* brust policy = 32KHz */
+	/*
+	 * Switch to clk_s (32KHz); bits 28:31=0
+	 * Enable burst on CPU IRQ; bit 24=1
+	 * Set IRQ burst clock source to clk_m; bits 10:8=0
+	 */
+	mov	r0, #(1 << 24)
 	str	r0, [r5, #CLK_RESET_SCLK_BURST]
 
 	ret	lr

arch/arm/mach-zynq/platsmp.c

@@ -15,6 +15,7 @@
 #include <linux/init.h>
 #include <linux/io.h>
 #include <asm/cacheflush.h>
+#include <asm/smp_plat.h>
 #include <asm/smp_scu.h>
 #include <linux/irqchip/arm-gic.h>
 #include "common.h"
@@ -30,6 +31,7 @@ int zynq_cpun_start(u32 address, int cpu)
 {
 	u32 trampoline_code_size = &zynq_secondary_trampoline_end -
 						&zynq_secondary_trampoline;
+	u32 phy_cpuid = cpu_logical_map(cpu);
 
 	/* MS: Expectation that SLCR are directly map and accessible */
 	/* Not possible to jump to non aligned address */
@@ -39,7 +41,7 @@ int zynq_cpun_start(u32 address, int cpu)
 		u32 trampoline_size = &zynq_secondary_trampoline_jump -
 						&zynq_secondary_trampoline;
 
-		zynq_slcr_cpu_stop(cpu);
+		zynq_slcr_cpu_stop(phy_cpuid);
 		if (address) {
 			if (__pa(PAGE_OFFSET)) {
 				zero = ioremap(0, trampoline_code_size);
@@ -68,7 +70,7 @@ int zynq_cpun_start(u32 address, int cpu)
 			if (__pa(PAGE_OFFSET))
 				iounmap(zero);
 		}
-		zynq_slcr_cpu_start(cpu);
+		zynq_slcr_cpu_start(phy_cpuid);
 
 		return 0;
 	}

arch/arm/plat-samsung/adc.c

@@ -40,7 +40,7 @@ enum s3c_cpu_type {
 	TYPE_ADCV11, /* S3C2443 */
 	TYPE_ADCV12, /* S3C2416, S3C2450 */
 	TYPE_ADCV2, /* S3C64XX */
-	TYPE_ADCV3, /* S5PV210, S5PC110, EXYNOS4210 */
+	TYPE_ADCV3, /* S5PV210, S5PC110, Exynos4210 */
 };
 
 struct s3c_adc_client {

arch/arm/plat-samsung/devs.c

@@ -3,7 +3,7 @@
 // Copyright (c) 2011 Samsung Electronics Co., Ltd.
 //		http://www.samsung.com
 //
-// Base SAMSUNG platform device definitions
+// Base Samsung platform device definitions
 
 #include <linux/kernel.h>
 #include <linux/types.h>

arch/arm/plat-samsung/gpio-samsung.c

@@ -8,7 +8,7 @@
 //      Ben Dooks <ben@simtec.co.uk>
 //      http://armlinux.simtec.co.uk/
 //
-// SAMSUNG - GPIOlib support
+// Samsung - GPIOlib support
 
 #include <linux/kernel.h>
 #include <linux/irq.h>

arch/arm/plat-samsung/include/plat/samsung-time.h

@@ -9,7 +9,7 @@
 #ifndef __ASM_PLAT_SAMSUNG_TIME_H
 #define __ASM_PLAT_SAMSUNG_TIME_H __FILE__
 
-/* SAMSUNG HR-Timer Clock mode */
+/* Samsung HR-Timer Clock mode */
 enum samsung_timer_mode {
 	SAMSUNG_PWM0,
 	SAMSUNG_PWM1,

drivers/power/reset/Kconfig

@@ -26,7 +26,7 @@ config POWER_RESET_AT91_POWEROFF
 config POWER_RESET_AT91_RESET
 	tristate "Atmel AT91 reset driver"
 	depends on ARCH_AT91
-	default SOC_AT91SAM9 || SOC_SAMA5
+	default SOC_AT91SAM9 || SOC_SAM9X60 || SOC_SAMA5
 	help
 	  This driver supports restart for Atmel AT91SAM9 and SAMA5
 	  SoCs
@@ -34,7 +34,7 @@ config POWER_RESET_AT91_RESET
 config POWER_RESET_AT91_SAMA5D2_SHDWC
 	tristate "Atmel AT91 SAMA5D2-Compatible shutdown controller driver"
 	depends on ARCH_AT91
-	default SOC_SAMA5
+	default SOC_SAM9X60 || SOC_SAMA5
 	help
 	  This driver supports the alternate shutdown controller for some Atmel
 	  SAMA5 SoCs. It is present for example on SAMA5D2 SoC.

drivers/soc/atmel/soc.c

@@ -66,8 +66,9 @@ static const struct at91_soc __initconst socs[] = {
 	AT91_SOC(AT91SAM9XE128_CIDR_MATCH, 0, "at91sam9xe128", "at91sam9xe128"),
 	AT91_SOC(AT91SAM9XE256_CIDR_MATCH, 0, "at91sam9xe256", "at91sam9xe256"),
 	AT91_SOC(AT91SAM9XE512_CIDR_MATCH, 0, "at91sam9xe512", "at91sam9xe512"),
-	AT91_SOC(SAM9X60_CIDR_MATCH, SAM9X60_EXID_MATCH,
-		 "sam9x60", "sam9x60"),
+#endif
+#ifdef CONFIG_SOC_SAM9X60
+	AT91_SOC(SAM9X60_CIDR_MATCH, SAM9X60_EXID_MATCH, "sam9x60", "sam9x60"),
 #endif
 #ifdef CONFIG_SOC_SAMA5
 	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D21CU_EXID_MATCH,