Merge branch 'davinci-next' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-davinci into devel-stable

10 files changed, 462 insertions, 59 deletions

diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
index b77b860b36d7..32f147998cd9 100644
--- a/arch/arm/mach-davinci/Kconfig
+++ b/arch/arm/mach-davinci/Kconfig
@@ -61,6 +61,8 @@ config MACH_DAVINCI_EVM
 	bool "TI DM644x EVM"
 	default ARCH_DAVINCI_DM644x
 	depends on ARCH_DAVINCI_DM644x
+	select MISC_DEVICES
+	select EEPROM_AT24
 	help
 	  Configure this option to specify the whether the board used
 	  for development is a DM644x EVM
@@ -68,6 +70,8 @@ config MACH_DAVINCI_EVM
 config MACH_SFFSDR
 	bool "Lyrtech SFFSDR"
 	depends on ARCH_DAVINCI_DM644x
+	select MISC_DEVICES
+	select EEPROM_AT24
 	help
 	  Say Y here to select the Lyrtech Small Form Factor
 	  Software Defined Radio (SFFSDR) board.
@@ -99,6 +103,8 @@ config MACH_DAVINCI_DM6467_EVM
 	default ARCH_DAVINCI_DM646x
 	depends on ARCH_DAVINCI_DM646x
 	select MACH_DAVINCI_DM6467TEVM
+	select MISC_DEVICES
+	select EEPROM_AT24
 	help
 	  Configure this option to specify the whether the board used
 	  for development is a DM6467 EVM
@@ -110,6 +116,8 @@ config MACH_DAVINCI_DM365_EVM
 	bool "TI DM365 EVM"
 	default ARCH_DAVINCI_DM365
 	depends on ARCH_DAVINCI_DM365
+	select MISC_DEVICES
+	select EEPROM_AT24
 	help
 	  Configure this option to specify whether the board used
 	  for development is a DM365 EVM
@@ -119,6 +127,8 @@ config MACH_DAVINCI_DA830_EVM
 	default ARCH_DAVINCI_DA830
 	depends on ARCH_DAVINCI_DA830
 	select GPIO_PCF857X
+	select MISC_DEVICES
+	select EEPROM_AT24
 	help
 	  Say Y here to select the TI DA830/OMAP-L137/AM17x Evaluation Module.
 
@@ -148,7 +158,6 @@ config MACH_DAVINCI_DA850_EVM
 	bool "TI DA850/OMAP-L138/AM18x Reference Platform"
 	default ARCH_DAVINCI_DA850
 	depends on ARCH_DAVINCI_DA850
-	select GPIO_PCA953X
 	help
 	  Say Y here to select the TI DA850/OMAP-L138/AM18x Evaluation Module.
 
@@ -178,6 +187,12 @@ config DA850_UI_RMII
 
 endchoice
 
+config GPIO_PCA953X
+	default MACH_DAVINCI_DA850_EVM
+
+config KEYBOARD_GPIO_POLLED
+	default MACH_DAVINCI_DA850_EVM
+
 config MACH_TNETV107X
 	bool "TI TNETV107X Reference Platform"
 	default ARCH_DAVINCI_TNETV107X
@@ -188,6 +203,8 @@ config MACH_TNETV107X
 config MACH_MITYOMAPL138
 	bool "Critical Link MityDSP-L138/MityARM-1808 SoM"
 	depends on ARCH_DAVINCI_DA850
+	select MISC_DEVICES
+	select EEPROM_AT24
 	help
 	  Say Y here to select the Critical Link MityDSP-L138/MityARM-1808
 	  System on Module.  Information on this SoM may be found at
diff --git a/arch/arm/mach-davinci/aemif.c b/arch/arm/mach-davinci/aemif.c
index 9c3f500fc12f..1ce70a91f2e9 100644
--- a/arch/arm/mach-davinci/aemif.c
+++ b/arch/arm/mach-davinci/aemif.c
@@ -90,7 +90,7 @@ int davinci_aemif_setup_timing(struct davinci_aemif_timing *t,
 					void __iomem *base, unsigned cs)
 {
 	unsigned set, val;
-	unsigned ta, rhold, rstrobe, rsetup, whold, wstrobe, wsetup;
+	int ta, rhold, rstrobe, rsetup, whold, wstrobe, wsetup;
 	unsigned offset = A1CR_OFFSET + cs * 4;
 	struct clk *aemif_clk;
 	unsigned long clkrate;
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index c6e11c682e4c..b01fb2ab944a 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -17,8 +17,10 @@
 #include <linux/i2c.h>
 #include <linux/i2c/at24.h>
 #include <linux/i2c/pca953x.h>
+#include <linux/input.h>
 #include <linux/mfd/tps6507x.h>
 #include <linux/gpio.h>
+#include <linux/gpio_keys.h>
 #include <linux/platform_device.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
@@ -266,34 +268,115 @@ static inline void da850_evm_setup_emac_rmii(int rmii_sel)
 	struct davinci_soc_info *soc_info = &davinci_soc_info;
 
 	soc_info->emac_pdata->rmii_en = 1;
-	gpio_set_value(rmii_sel, 0);
+	gpio_set_value_cansleep(rmii_sel, 0);
 }
 #else
 static inline void da850_evm_setup_emac_rmii(int rmii_sel) { }
 #endif
 
+
+#define DA850_KEYS_DEBOUNCE_MS	10
+/*
+ * At 200ms polling interval it is possible to miss an
+ * event by tapping very lightly on the push button but most
+ * pushes do result in an event; longer intervals require the
+ * user to hold the button whereas shorter intervals require
+ * more CPU time for polling.
+ */
+#define DA850_GPIO_KEYS_POLL_MS	200
+
+enum da850_evm_ui_exp_pins {
+	DA850_EVM_UI_EXP_SEL_C = 5,
+	DA850_EVM_UI_EXP_SEL_B,
+	DA850_EVM_UI_EXP_SEL_A,
+	DA850_EVM_UI_EXP_PB8,
+	DA850_EVM_UI_EXP_PB7,
+	DA850_EVM_UI_EXP_PB6,
+	DA850_EVM_UI_EXP_PB5,
+	DA850_EVM_UI_EXP_PB4,
+	DA850_EVM_UI_EXP_PB3,
+	DA850_EVM_UI_EXP_PB2,
+	DA850_EVM_UI_EXP_PB1,
+};
+
+static const char const *da850_evm_ui_exp[] = {
+	[DA850_EVM_UI_EXP_SEL_C]        = "sel_c",
+	[DA850_EVM_UI_EXP_SEL_B]        = "sel_b",
+	[DA850_EVM_UI_EXP_SEL_A]        = "sel_a",
+	[DA850_EVM_UI_EXP_PB8]          = "pb8",
+	[DA850_EVM_UI_EXP_PB7]          = "pb7",
+	[DA850_EVM_UI_EXP_PB6]          = "pb6",
+	[DA850_EVM_UI_EXP_PB5]          = "pb5",
+	[DA850_EVM_UI_EXP_PB4]          = "pb4",
+	[DA850_EVM_UI_EXP_PB3]          = "pb3",
+	[DA850_EVM_UI_EXP_PB2]          = "pb2",
+	[DA850_EVM_UI_EXP_PB1]          = "pb1",
+};
+
+#define DA850_N_UI_PB		8
+
+static struct gpio_keys_button da850_evm_ui_keys[] = {
+	[0 ... DA850_N_UI_PB - 1] = {
+		.type			= EV_KEY,
+		.active_low		= 1,
+		.wakeup			= 0,
+		.debounce_interval	= DA850_KEYS_DEBOUNCE_MS,
+		.code			= -1, /* assigned at runtime */
+		.gpio			= -1, /* assigned at runtime */
+		.desc			= NULL, /* assigned at runtime */
+	},
+};
+
+static struct gpio_keys_platform_data da850_evm_ui_keys_pdata = {
+	.buttons = da850_evm_ui_keys,
+	.nbuttons = ARRAY_SIZE(da850_evm_ui_keys),
+	.poll_interval = DA850_GPIO_KEYS_POLL_MS,
+};
+
+static struct platform_device da850_evm_ui_keys_device = {
+	.name = "gpio-keys-polled",
+	.id = 0,
+	.dev = {
+		.platform_data = &da850_evm_ui_keys_pdata
+	},
+};
+
+static void da850_evm_ui_keys_init(unsigned gpio)
+{
+	int i;
+	struct gpio_keys_button *button;
+
+	for (i = 0; i < DA850_N_UI_PB; i++) {
+		button = &da850_evm_ui_keys[i];
+		button->code = KEY_F8 - i;
+		button->desc = (char *)
+				da850_evm_ui_exp[DA850_EVM_UI_EXP_PB8 + i];
+		button->gpio = gpio + DA850_EVM_UI_EXP_PB8 + i;
+	}
+}
+
 static int da850_evm_ui_expander_setup(struct i2c_client *client, unsigned gpio,
 						unsigned ngpio, void *c)
 {
 	int sel_a, sel_b, sel_c, ret;
 
-	sel_a = gpio + 7;
-	sel_b = gpio + 6;
-	sel_c = gpio + 5;
+	sel_a = gpio + DA850_EVM_UI_EXP_SEL_A;
+	sel_b = gpio + DA850_EVM_UI_EXP_SEL_B;
+	sel_c = gpio + DA850_EVM_UI_EXP_SEL_C;
 
-	ret = gpio_request(sel_a, "sel_a");
+	ret = gpio_request(sel_a, da850_evm_ui_exp[DA850_EVM_UI_EXP_SEL_A]);
 	if (ret) {
 		pr_warning("Cannot open UI expander pin %d\n", sel_a);
 		goto exp_setup_sela_fail;
 	}
 
-	ret = gpio_request(sel_b, "sel_b");
+	ret = gpio_request(sel_b, da850_evm_ui_exp[DA850_EVM_UI_EXP_SEL_B]);
 	if (ret) {
 		pr_warning("Cannot open UI expander pin %d\n", sel_b);
 		goto exp_setup_selb_fail;
 	}
 
-	ret = gpio_request(sel_c, "sel_c");
+	ret = gpio_request(sel_c, da850_evm_ui_exp[DA850_EVM_UI_EXP_SEL_C]);
 	if (ret) {
 		pr_warning("Cannot open UI expander pin %d\n", sel_c);
 		goto exp_setup_selc_fail;
@@ -304,6 +387,13 @@ static int da850_evm_ui_expander_setup(struct i2c_client *client, unsigned gpio,
 	gpio_direction_output(sel_b, 1);
 	gpio_direction_output(sel_c, 1);
 
+	da850_evm_ui_keys_init(gpio);
+	ret = platform_device_register(&da850_evm_ui_keys_device);
+	if (ret) {
+		pr_warning("Could not register UI GPIO expander push-buttons");
+		goto exp_setup_keys_fail;
+	}
+
 	ui_card_detected = 1;
 	pr_info("DA850/OMAP-L138 EVM UI card detected\n");
 
@@ -313,6 +403,8 @@ static int da850_evm_ui_expander_setup(struct i2c_client *client, unsigned gpio,
 
 	return 0;
 
+exp_setup_keys_fail:
+	gpio_free(sel_c);
 exp_setup_selc_fail:
 	gpio_free(sel_b);
 exp_setup_selb_fail:
@@ -324,14 +416,192 @@ exp_setup_sela_fail:
 static int da850_evm_ui_expander_teardown(struct i2c_client *client,
 					unsigned gpio, unsigned ngpio, void *c)
 {
+	platform_device_unregister(&da850_evm_ui_keys_device);
+
 	/* deselect all functionalities */
-	gpio_set_value(gpio + 5, 1);
-	gpio_set_value(gpio + 6, 1);
-	gpio_set_value(gpio + 7, 1);
+	gpio_set_value_cansleep(gpio + DA850_EVM_UI_EXP_SEL_C, 1);
+	gpio_set_value_cansleep(gpio + DA850_EVM_UI_EXP_SEL_B, 1);
+	gpio_set_value_cansleep(gpio + DA850_EVM_UI_EXP_SEL_A, 1);
+
+	gpio_free(gpio + DA850_EVM_UI_EXP_SEL_C);
+	gpio_free(gpio + DA850_EVM_UI_EXP_SEL_B);
+	gpio_free(gpio + DA850_EVM_UI_EXP_SEL_A);
+
+	return 0;
+}
+
+/* assign the baseboard expander's GPIOs after the UI board's */
+#define DA850_UI_EXPANDER_N_GPIOS ARRAY_SIZE(da850_evm_ui_exp)
+#define DA850_BB_EXPANDER_GPIO_BASE (DAVINCI_N_GPIO + DA850_UI_EXPANDER_N_GPIOS)
+
+enum da850_evm_bb_exp_pins {
+	DA850_EVM_BB_EXP_DEEP_SLEEP_EN = 0,
+	DA850_EVM_BB_EXP_SW_RST,
+	DA850_EVM_BB_EXP_TP_23,
+	DA850_EVM_BB_EXP_TP_22,
+	DA850_EVM_BB_EXP_TP_21,
+	DA850_EVM_BB_EXP_USER_PB1,
+	DA850_EVM_BB_EXP_USER_LED2,
+	DA850_EVM_BB_EXP_USER_LED1,
+	DA850_EVM_BB_EXP_USER_SW1,
+	DA850_EVM_BB_EXP_USER_SW2,
+	DA850_EVM_BB_EXP_USER_SW3,
+	DA850_EVM_BB_EXP_USER_SW4,
+	DA850_EVM_BB_EXP_USER_SW5,
+	DA850_EVM_BB_EXP_USER_SW6,
+	DA850_EVM_BB_EXP_USER_SW7,
+	DA850_EVM_BB_EXP_USER_SW8
+};
+
+static const char const *da850_evm_bb_exp[] = {
+	[DA850_EVM_BB_EXP_DEEP_SLEEP_EN]	= "deep_sleep_en",
+	[DA850_EVM_BB_EXP_SW_RST]		= "sw_rst",
+	[DA850_EVM_BB_EXP_TP_23]		= "tp_23",
+	[DA850_EVM_BB_EXP_TP_22]		= "tp_22",
+	[DA850_EVM_BB_EXP_TP_21]		= "tp_21",
+	[DA850_EVM_BB_EXP_USER_PB1]		= "user_pb1",
+	[DA850_EVM_BB_EXP_USER_LED2]		= "user_led2",
+	[DA850_EVM_BB_EXP_USER_LED1]		= "user_led1",
+	[DA850_EVM_BB_EXP_USER_SW1]		= "user_sw1",
+	[DA850_EVM_BB_EXP_USER_SW2]		= "user_sw2",
+	[DA850_EVM_BB_EXP_USER_SW3]		= "user_sw3",
+	[DA850_EVM_BB_EXP_USER_SW4]		= "user_sw4",
+	[DA850_EVM_BB_EXP_USER_SW5]		= "user_sw5",
+	[DA850_EVM_BB_EXP_USER_SW6]		= "user_sw6",
+	[DA850_EVM_BB_EXP_USER_SW7]		= "user_sw7",
+	[DA850_EVM_BB_EXP_USER_SW8]		= "user_sw8",
+};
+
+#define DA850_N_BB_USER_SW	8
+
+static struct gpio_keys_button da850_evm_bb_keys[] = {
+	[0] = {
+		.type			= EV_KEY,
+		.active_low		= 1,
+		.wakeup			= 0,
+		.debounce_interval	= DA850_KEYS_DEBOUNCE_MS,
+		.code			= KEY_PROG1,
+		.desc			= NULL, /* assigned at runtime */
+		.gpio			= -1, /* assigned at runtime */
+	},
+	[1 ... DA850_N_BB_USER_SW] = {
+		.type			= EV_SW,
+		.active_low		= 1,
+		.wakeup			= 0,
+		.debounce_interval	= DA850_KEYS_DEBOUNCE_MS,
+		.code			= -1, /* assigned at runtime */
+		.desc			= NULL, /* assigned at runtime */
+		.gpio			= -1, /* assigned at runtime */
+	},
+};
+
+static struct gpio_keys_platform_data da850_evm_bb_keys_pdata = {
+	.buttons = da850_evm_bb_keys,
+	.nbuttons = ARRAY_SIZE(da850_evm_bb_keys),
+	.poll_interval = DA850_GPIO_KEYS_POLL_MS,
+};
+
+static struct platform_device da850_evm_bb_keys_device = {
+	.name = "gpio-keys-polled",
+	.id = 1,
+	.dev = {
+		.platform_data = &da850_evm_bb_keys_pdata
+	},
+};
+
+static void da850_evm_bb_keys_init(unsigned gpio)
+{
+	int i;
+	struct gpio_keys_button *button;
+
+	button = &da850_evm_bb_keys[0];
+	button->desc = (char *)
+		da850_evm_bb_exp[DA850_EVM_BB_EXP_USER_PB1];
+	button->gpio = gpio + DA850_EVM_BB_EXP_USER_PB1;
+
+	for (i = 0; i < DA850_N_BB_USER_SW; i++) {
+		button = &da850_evm_bb_keys[i + 1];
+		button->code = SW_LID + i;
+		button->desc = (char *)
+				da850_evm_bb_exp[DA850_EVM_BB_EXP_USER_SW1 + i];
+		button->gpio = gpio + DA850_EVM_BB_EXP_USER_SW1 + i;
+	}
+}
 
-	gpio_free(gpio + 5);
-	gpio_free(gpio + 6);
-	gpio_free(gpio + 7);
+#define DA850_N_BB_USER_LED	2
+
+static struct gpio_led da850_evm_bb_leds[] = {
+	[0 ... DA850_N_BB_USER_LED - 1] = {
+		.active_low = 1,
+		.gpio = -1, /* assigned at runtime */
+		.name = NULL, /* assigned at runtime */
+	},
+};
+
+static struct gpio_led_platform_data da850_evm_bb_leds_pdata = {
+	.leds = da850_evm_bb_leds,
+	.num_leds = ARRAY_SIZE(da850_evm_bb_leds),
+};
+
+static struct platform_device da850_evm_bb_leds_device = {
+	.name		= "leds-gpio",
+	.id		= -1,
+	.dev = {
+		.platform_data = &da850_evm_bb_leds_pdata
+	}
+};
+
+static void da850_evm_bb_leds_init(unsigned gpio)
+{
+	int i;
+	struct gpio_led *led;
+
+	for (i = 0; i < DA850_N_BB_USER_LED; i++) {
+		led = &da850_evm_bb_leds[i];
+
+		led->gpio = gpio + DA850_EVM_BB_EXP_USER_LED2 + i;
+		led->name =
+			da850_evm_bb_exp[DA850_EVM_BB_EXP_USER_LED2 + i];
+	}
+}
+
+static int da850_evm_bb_expander_setup(struct i2c_client *client,
+						unsigned gpio, unsigned ngpio,
+						void *c)
+{
+	int ret;
+
+	/*
+	 * Register the switches and pushbutton on the baseboard as a gpio-keys
+	 * device.
+	 */
+	da850_evm_bb_keys_init(gpio);
+	ret = platform_device_register(&da850_evm_bb_keys_device);
+	if (ret) {
+		pr_warning("Could not register baseboard GPIO expander keys");
+		goto io_exp_setup_sw_fail;
+	}
+
+	da850_evm_bb_leds_init(gpio);
+	ret = platform_device_register(&da850_evm_bb_leds_device);
+	if (ret) {
+		pr_warning("Could not register baseboard GPIO expander LEDS");
+		goto io_exp_setup_leds_fail;
+	}
+
+	return 0;
+
+io_exp_setup_leds_fail:
+	platform_device_unregister(&da850_evm_bb_keys_device);
+io_exp_setup_sw_fail:
+	return ret;
+}
+
+static int da850_evm_bb_expander_teardown(struct i2c_client *client,
+					unsigned gpio, unsigned ngpio, void *c)
+{
+	platform_device_unregister(&da850_evm_bb_leds_device);
+	platform_device_unregister(&da850_evm_bb_keys_device);
 
 	return 0;
 }
@@ -340,6 +610,14 @@ static struct pca953x_platform_data da850_evm_ui_expander_info = {
 	.gpio_base	= DAVINCI_N_GPIO,
 	.setup		= da850_evm_ui_expander_setup,
 	.teardown	= da850_evm_ui_expander_teardown,
+	.names		= da850_evm_ui_exp,
+};
+
+static struct pca953x_platform_data da850_evm_bb_expander_info = {
+	.gpio_base	= DA850_BB_EXPANDER_GPIO_BASE,
+	.setup		= da850_evm_bb_expander_setup,
+	.teardown	= da850_evm_bb_expander_teardown,
+	.names		= da850_evm_bb_exp,
 };
 
 static struct i2c_board_info __initdata da850_evm_i2c_devices[] = {
@@ -350,6 +628,10 @@ static struct i2c_board_info __initdata da850_evm_i2c_devices[] = {
 		I2C_BOARD_INFO("tca6416", 0x20),
 		.platform_data = &da850_evm_ui_expander_info,
 	},
+	{
+		I2C_BOARD_INFO("tca6416", 0x21),
+		.platform_data = &da850_evm_bb_expander_info,
+	},
 };
 
 static struct davinci_i2c_platform_data da850_evm_i2c_0_pdata = {
@@ -540,7 +822,7 @@ static struct regulator_init_data tps65070_regulator_data[] = {
 	{
 		.constraints = {
 			.min_uV = 950000,
-			.max_uV = 1320000,
+			.max_uV = 1350000,
 			.valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
 				REGULATOR_CHANGE_STATUS),
 			.boot_on = 1,
@@ -591,7 +873,7 @@ static struct tps6507x_board tps_board = {
 	.tps6507x_ts_init_data = &tps6507x_touchscreen_data,
 };
 
-static struct i2c_board_info __initdata da850evm_tps65070_info[] = {
+static struct i2c_board_info __initdata da850_evm_tps65070_info[] = {
 	{
 		I2C_BOARD_INFO("tps6507x", 0x48),
 		.platform_data = &tps_board,
@@ -600,8 +882,8 @@ static struct i2c_board_info __initdata da850evm_tps65070_info[] = {
 
 static int __init pmic_tps65070_init(void)
 {
-	return i2c_register_board_info(1, da850evm_tps65070_info,
-					ARRAY_SIZE(da850evm_tps65070_info));
+	return i2c_register_board_info(1, da850_evm_tps65070_info,
+					ARRAY_SIZE(da850_evm_tps65070_info));
 }
 
 static const short da850_evm_lcdc_pins[] = {
@@ -736,6 +1018,27 @@ static struct edma_rsv_info *da850_edma_rsv[2] = {
 	&da850_edma_cc1_rsv,
 };
 
+#ifdef CONFIG_CPU_FREQ
+static __init int da850_evm_init_cpufreq(void)
+{
+	switch (system_rev & 0xF) {
+	case 3:
+		da850_max_speed = 456000;
+		break;
+	case 2:
+		da850_max_speed = 408000;
+		break;
+	case 1:
+		da850_max_speed = 372000;
+		break;
+	}
+
+	return da850_register_cpufreq("pll0_sysclk3");
+}
+#else
+static __init int da850_evm_init_cpufreq(void) { return 0; }
+#endif
+
 static __init void da850_evm_init(void)
 {
 	int ret;
@@ -836,7 +1139,7 @@ static __init void da850_evm_init(void)
 	if (ret)
 		pr_warning("da850_evm_init: rtc setup failed: %d\n", ret);
 
-	ret = da850_register_cpufreq("pll0_sysclk3");
+	ret = da850_evm_init_cpufreq();
 	if (ret)
 		pr_warning("da850_evm_init: cpufreq registration failed: %d\n",
 				ret);
diff --git a/arch/arm/mach-davinci/clock.c b/arch/arm/mach-davinci/clock.c
index 01ba080433db..e4e3af179f02 100644
--- a/arch/arm/mach-davinci/clock.c
+++ b/arch/arm/mach-davinci/clock.c
@@ -336,7 +336,7 @@ int davinci_set_sysclk_rate(struct clk *clk, unsigned long rate)
 		ratio--;
 	}
 
-	if (ratio > PLLDIV_RATIO_MASK)
+	if (ratio > pll->div_ratio_mask)
 		return -EINVAL;
 
 	do {
@@ -344,7 +344,7 @@ int davinci_set_sysclk_rate(struct clk *clk, unsigned long rate)
 	} while (v & PLLSTAT_GOSTAT);
 
 	v = __raw_readl(pll->base + clk->div_reg);
-	v &= ~PLLDIV_RATIO_MASK;
+	v &= ~pll->div_ratio_mask;
 	v |= ratio | PLLDIV_EN;
 	__raw_writel(v, pll->base + clk->div_reg);
 
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 63916b902760..78b5ae29ae40 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -830,8 +830,7 @@ static void da850_set_async3_src(int pllnum)
  * According to the TRM, minimum PLLM results in maximum power savings.
  * The OPP definitions below should keep the PLLM as low as possible.
  *
- * The output of the PLLM must be between 400 to 600 MHz.
- * This rules out prediv of anything but divide-by-one for 24Mhz OSC input.
+ * The output of the PLLM must be between 300 to 600 MHz.
  */
 struct da850_opp {
 	unsigned int	freq;	/* in KHz */
@@ -842,6 +841,33 @@ struct da850_opp {
 	unsigned int	cvdd_max; /* in uV */
 };
 
+static const struct da850_opp da850_opp_456 = {
+	.freq		= 456000,
+	.prediv		= 1,
+	.mult		= 19,
+	.postdiv	= 1,
+	.cvdd_min	= 1300000,
+	.cvdd_max	= 1350000,
+};
+
+static const struct da850_opp da850_opp_408 = {
+	.freq		= 408000,
+	.prediv		= 1,
+	.mult		= 17,
+	.postdiv	= 1,
+	.cvdd_min	= 1300000,
+	.cvdd_max	= 1350000,
+};
+
+static const struct da850_opp da850_opp_372 = {
+	.freq		= 372000,
+	.prediv		= 2,
+	.mult		= 31,
+	.postdiv	= 1,
+	.cvdd_min	= 1200000,
+	.cvdd_max	= 1320000,
+};
+
 static const struct da850_opp da850_opp_300 = {
 	.freq		= 300000,
 	.prediv		= 1,
@@ -876,6 +902,9 @@ static const struct da850_opp da850_opp_96 = {
 	}
 
 static struct cpufreq_frequency_table da850_freq_table[] = {
+	OPP(456),
+	OPP(408),
+	OPP(372),
 	OPP(300),
 	OPP(200),
 	OPP(96),
@@ -886,6 +915,19 @@ static struct cpufreq_frequency_table da850_freq_table[] = {
 };
 
 #ifdef CONFIG_REGULATOR
+static int da850_set_voltage(unsigned int index);
+static int da850_regulator_init(void);
+#endif
+
+static struct davinci_cpufreq_config cpufreq_info = {
+	.freq_table = da850_freq_table,
+#ifdef CONFIG_REGULATOR
+	.init = da850_regulator_init,
+	.set_voltage = da850_set_voltage,
+#endif
+};
+
+#ifdef CONFIG_REGULATOR
 static struct regulator *cvdd;
 
 static int da850_set_voltage(unsigned int index)
@@ -895,7 +937,7 @@ static int da850_set_voltage(unsigned int index)
 	if (!cvdd)
 		return -ENODEV;
 
-	opp = (struct da850_opp *) da850_freq_table[index].index;
+	opp = (struct da850_opp *) cpufreq_info.freq_table[index].index;
 
 	return regulator_set_voltage(cvdd, opp->cvdd_min, opp->cvdd_max);
 }
@@ -912,14 +954,6 @@ static int da850_regulator_init(void)
 }
 #endif
 
-static struct davinci_cpufreq_config cpufreq_info = {
-	.freq_table = &da850_freq_table[0],
-#ifdef CONFIG_REGULATOR
-	.init = da850_regulator_init,
-	.set_voltage = da850_set_voltage,
-#endif
-};
-
 static struct platform_device da850_cpufreq_device = {
 	.name			= "cpufreq-davinci",
 	.dev = {
@@ -928,12 +962,22 @@ static struct platform_device da850_cpufreq_device = {
 	.id = -1,
 };
 
+unsigned int da850_max_speed = 300000;
+
 int __init da850_register_cpufreq(char *async_clk)
 {
+	int i;
+
 	/* cpufreq driver can help keep an "async" clock constant */
 	if (async_clk)
 		clk_add_alias("async", da850_cpufreq_device.name,
 							async_clk, NULL);
+	for (i = 0; i < ARRAY_SIZE(da850_freq_table); i++) {
+		if (da850_freq_table[i].frequency <= da850_max_speed) {
+			cpufreq_info.freq_table = &da850_freq_table[i];
+			break;
+		}
+	}
 
 	return platform_device_register(&da850_cpufreq_device);
 }
@@ -942,17 +986,18 @@ static int da850_round_armrate(struct clk *clk, unsigned long rate)
 {
 	int i, ret = 0, diff;
 	unsigned int best = (unsigned int) -1;
+	struct cpufreq_frequency_table *table = cpufreq_info.freq_table;
 
 	rate /= 1000; /* convert to kHz */
 
-	for (i = 0; da850_freq_table[i].frequency != CPUFREQ_TABLE_END; i++) {
-		diff = da850_freq_table[i].frequency - rate;
+	for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
+		diff = table[i].frequency - rate;
 		if (diff < 0)
 			diff = -diff;
 
 		if (diff < best) {
 			best = diff;
-			ret = da850_freq_table[i].frequency;
+			ret = table[i].frequency;
 		}
 	}
 
@@ -973,7 +1018,7 @@ static int da850_set_pll0rate(struct clk *clk, unsigned long index)
 	struct pll_data *pll = clk->pll_data;
 	int ret;
 
-	opp = (struct da850_opp *) da850_freq_table[index].index;
+	opp = (struct da850_opp *) cpufreq_info.freq_table[index].index;
 	prediv = opp->prediv;
 	mult = opp->mult;
 	postdiv = opp->postdiv;
diff --git a/arch/arm/mach-davinci/devices-tnetv107x.c b/arch/arm/mach-davinci/devices-tnetv107x.c
index c9a86d8130d1..85503debda51 100644
--- a/arch/arm/mach-davinci/devices-tnetv107x.c
+++ b/arch/arm/mach-davinci/devices-tnetv107x.c
@@ -344,7 +344,20 @@ static struct platform_device tsc_device = {
 
 void __init tnetv107x_devices_init(struct tnetv107x_device_info *info)
 {
-	int i;
+	int i, error;
+	struct clk *tsc_clk;
+
+	/*
+	 * The reset defaults for tnetv107x tsc clock divider is set too high.
+	 * This forces the clock down to a range that allows the ADC to
+	 * complete sample conversion in time.
+	 */
+	tsc_clk = clk_get(NULL, "sys_tsc_clk");
+	if (tsc_clk) {
+		error = clk_set_rate(tsc_clk, 5000000);
+		WARN_ON(error < 0);
+		clk_put(tsc_clk);
+	}
 
 	platform_device_register(&edma_device);
 	platform_device_register(&tnetv107x_wdt_device);
diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
index 4247b3f53b33..e7f952066527 100644
--- a/arch/arm/mach-davinci/include/mach/da8xx.h
+++ b/arch/arm/mach-davinci/include/mach/da8xx.h
@@ -28,6 +28,13 @@ extern void __iomem *da8xx_syscfg0_base;
 extern void __iomem *da8xx_syscfg1_base;
 
 /*
+ * If the DA850/OMAP-L138/AM18x SoC on board is of a higher speed grade
+ * (than the regular 300Mhz variant), the board code should set this up
+ * with the supported speed before calling da850_register_cpufreq().
+ */
+extern unsigned int da850_max_speed;
+
+/*
  * The cp_intc interrupt controller for the da8xx isn't in the same
  * chunk of physical memory space as the other registers (like it is
  * on the davincis) so it needs to be mapped separately.  It will be
diff --git a/arch/arm/mach-davinci/psc.c b/arch/arm/mach-davinci/psc.c
index 1b15dbd0a77b..a41580400701 100644
--- a/arch/arm/mach-davinci/psc.c
+++ b/arch/arm/mach-davinci/psc.c
@@ -83,21 +83,16 @@ void davinci_psc_config(unsigned int domain, unsigned int ctlr,
 		pdctl1 = __raw_readl(psc_base + PDCTL1);
 		pdctl1 |= 0x100;
 		__raw_writel(pdctl1, psc_base + PDCTL1);
-
-		do {
-			ptstat = __raw_readl(psc_base +
-					       PTSTAT);
-		} while (!(((ptstat >> domain) & 1) == 0));
 	} else {
 		ptcmd = 1 << domain;
 		__raw_writel(ptcmd, psc_base + PTCMD);
-
-		do {
-			ptstat = __raw_readl(psc_base + PTSTAT);
-		} while (!(((ptstat >> domain) & 1) == 0));
 	}
 
 	do {
+		ptstat = __raw_readl(psc_base + PTSTAT);
+	} while (!(((ptstat >> domain) & 1) == 0));
+
+	do {
 		mdstat = __raw_readl(psc_base + MDSTAT + 4 * id);
 	} while (!((mdstat & MDSTAT_STATE_MASK) == next_state));
 
diff --git a/arch/arm/mach-davinci/time.c b/arch/arm/mach-davinci/time.c
index 0f21c36e65dd..5d1eea026635 100644
--- a/arch/arm/mach-davinci/time.c
+++ b/arch/arm/mach-davinci/time.c
@@ -272,15 +272,36 @@ static cycle_t read_cycles(struct clocksource *cs)
 	return (cycles_t)timer32_read(t);
 }
 
+/*
+ * Kernel assumes that sched_clock can be called early but may not have
+ * things ready yet.
+ */
+static cycle_t read_dummy(struct clocksource *cs)
+{
+	return 0;
+}
+
+
 static struct clocksource clocksource_davinci = {
 	.rating		= 300,
-	.read		= read_cycles,
+	.read		= read_dummy,
 	.mask		= CLOCKSOURCE_MASK(32),
 	.shift		= 24,
 	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
 /*
+ * Overwrite weak default sched_clock with something more precise
+ */
+unsigned long long notrace sched_clock(void)
+{
+	const cycle_t cyc = clocksource_davinci.read(&clocksource_davinci);
+
+	return clocksource_cyc2ns(cyc, clocksource_davinci.mult,
+				clocksource_davinci.shift);
+}
+
+/*
  * clockevent
  */
 static int davinci_set_next_event(unsigned long cycles,
@@ -377,6 +398,7 @@ static void __init davinci_timer_init(void)
 	davinci_clock_tick_rate = clk_get_rate(timer_clk);
 
 	/* setup clocksource */
+	clocksource_davinci.read = read_cycles;
 	clocksource_davinci.name = id_to_name[clocksource_id];
 	clocksource_davinci.mult =
 		clocksource_khz2mult(davinci_clock_tick_rate/1000,
diff --git a/arch/arm/mach-davinci/tnetv107x.c b/arch/arm/mach-davinci/tnetv107x.c
index daeae06430b9..6fcdecec8d8c 100644
--- a/arch/arm/mach-davinci/tnetv107x.c
+++ b/arch/arm/mach-davinci/tnetv107x.c
@@ -131,12 +131,13 @@ define_pll_clk(tdm, 1, 0x0ff, 0x200);
 define_pll_clk(eth, 2, 0x0ff, 0x400);
 
 /* Level 2 - divided outputs from the PLLs */
-#define define_pll_div_clk(pll, cname, div)		\
-	static struct clk pll##_##cname##_clk = {	\
-		.name		= #pll "_" #cname "_clk",\
-		.parent		= &pll_##pll##_clk,	\
-		.flags		= CLK_PLL,		\
-		.div_reg	= PLLDIV##div,		\
+#define define_pll_div_clk(pll, cname, div)			\
+	static struct clk pll##_##cname##_clk = {		\
+		.name		= #pll "_" #cname "_clk",	\
+		.parent		= &pll_##pll##_clk,		\
+		.flags		= CLK_PLL,			\
+		.div_reg	= PLLDIV##div,			\
+		.set_rate	= davinci_set_sysclk_rate,	\
 	}
 
 define_pll_div_clk(sys, arm1176,	1);
@@ -192,6 +193,7 @@ lpsc_clk_enabled(system,	sys_half_clk,	SYSTEM);
 lpsc_clk_enabled(ddr2_vrst,	sys_ddr_clk,	DDR2_EMIF1_VRST);
 lpsc_clk_enabled(ddr2_vctl_rst,	sys_ddr_clk,	DDR2_EMIF2_VCTL_RST);
 lpsc_clk_enabled(wdt_arm,	sys_half_clk,	WDT_ARM);
+lpsc_clk_enabled(timer1,	sys_half_clk,	TIMER1);
 
 lpsc_clk(mbx_lite,	sys_arm1176_clk,	MBX_LITE);
 lpsc_clk(ethss,		eth_125mhz_clk,		ETHSS);
@@ -205,16 +207,15 @@ lpsc_clk(mdio,		sys_half_clk,		MDIO);
 lpsc_clk(sdio0,		sys_half_clk,		SDIO0);
 lpsc_clk(sdio1,		sys_half_clk,		SDIO1);
 lpsc_clk(timer0,	sys_half_clk,		TIMER0);
-lpsc_clk(timer1,	sys_half_clk,		TIMER1);
 lpsc_clk(wdt_dsp,	sys_half_clk,		WDT_DSP);
 lpsc_clk(ssp,		sys_half_clk,		SSP);
 lpsc_clk(tdm0,		tdm_0_clk,		TDM0);
 lpsc_clk(tdm1,		tdm_1_clk,		TDM1);
 lpsc_clk(vlynq,		sys_vlynq_ref_clk,	VLYNQ);
 lpsc_clk(mcdma,		sys_half_clk,		MCDMA);
-lpsc_clk(usb0,		sys_half_clk,		USB0);
-lpsc_clk(usb1,		sys_half_clk,		USB1);
 lpsc_clk(usbss,		sys_half_clk,		USBSS);
+lpsc_clk(usb0,		clk_usbss,		USB0);
+lpsc_clk(usb1,		clk_usbss,		USB1);
 lpsc_clk(ethss_rgmii,	eth_250mhz_clk,		ETHSS_RGMII);
 lpsc_clk(imcop,		sys_dsp_clk,		IMCOP);
 lpsc_clk(spare,		sys_half_clk,		SPARE);
@@ -281,7 +282,9 @@ static struct clk_lookup clks[] = {
 	CLK(NULL,		"clk_tdm0",		&clk_tdm0),
 	CLK(NULL,		"clk_vlynq",		&clk_vlynq),
 	CLK(NULL,		"clk_mcdma",		&clk_mcdma),
+	CLK(NULL,		"clk_usbss",		&clk_usbss),
 	CLK(NULL,		"clk_usb0",		&clk_usb0),
+	CLK(NULL,		"clk_usb1",		&clk_usb1),
 	CLK(NULL,		"clk_tdm1",		&clk_tdm1),
 	CLK(NULL,		"clk_debugss",		&clk_debugss),
 	CLK(NULL,		"clk_ethss_rgmii",	&clk_ethss_rgmii),
@@ -289,8 +292,6 @@ static struct clk_lookup clks[] = {
 	CLK(NULL,		"clk_imcop",		&clk_imcop),
 	CLK(NULL,		"clk_spare",		&clk_spare),
 	CLK("davinci_mmc.1",	NULL,			&clk_sdio1),
-	CLK(NULL,		"clk_usb1",		&clk_usb1),
-	CLK(NULL,		"clk_usbss",		&clk_usbss),
 	CLK(NULL,		"clk_ddr2_vrst",	&clk_ddr2_vrst),
 	CLK(NULL,		"clk_ddr2_vctl_rst",	&clk_ddr2_vctl_rst),
 	CLK(NULL,		NULL,			NULL),