ARM: OMAP3: Add support for 3430 SDP, v4

Add support for 3430 SDP.

Various updates have been merged into this patch from
the linux-omap list.

Patch updated to initialize regulators by David Brownell
<dbrownell@users.sourceforge.net>.

Signed-off-by: Syed Mohammed Khasim <khasim@ti.com>
David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>

3 files changed, 549 insertions, 1 deletions

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 3754b79092ab..64ad5c04b643 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -58,4 +58,8 @@ config MACH_OVERO
 
 config MACH_OMAP3_PANDORA
 	bool "OMAP3 Pandora"
-	depends on ARCH_OMAP3 && ARCH_OMAP34XX
\ No newline at end of file
+	depends on ARCH_OMAP3 && ARCH_OMAP34XX
+
+config MACH_OMAP_3430SDP
+	bool "OMAP 3430 SDP board"
+	depends on ARCH_OMAP3 && ARCH_OMAP34XX
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 29f6ca94c360..809416dc6440 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -38,6 +38,8 @@ obj-$(CONFIG_MACH_OVERO)		+= board-overo.o \
 					   mmc-twl4030.o
 obj-$(CONFIG_MACH_OMAP3_PANDORA)	+= board-omap3pandora.o \
 					   mmc-twl4030.o
+obj-$(CONFIG_MACH_OMAP_3430SDP)		+= board-3430sdp.o \
+					   mmc-twl4030.o
 
 # Platform specific device init code
 ifeq ($(CONFIG_USB_MUSB_SOC),y)
diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c
new file mode 100644
index 000000000000..2af38e56db31
--- /dev/null
+++ b/arch/arm/mach-omap2/board-3430sdp.c
@@ -0,0 +1,542 @@
+/*
+ * linux/arch/arm/mach-omap2/board-3430sdp.c
+ *
+ * Copyright (C) 2007 Texas Instruments
+ *
+ * Modified from mach-omap2/board-generic.c
+ *
+ * Initial code: Syed Mohammed Khasim
+ *
+ * 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/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/ads7846.h>
+#include <linux/i2c/twl4030.h>
+#include <linux/regulator/machine.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+
+#include <mach/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <mach/mcspi.h>
+#include <mach/mux.h>
+#include <mach/board.h>
+#include <mach/usb.h>
+#include <mach/common.h>
+#include <mach/dma.h>
+#include <mach/gpmc.h>
+
+#include <mach/control.h>
+#include <mach/keypad.h>
+
+#include "mmc-twl4030.h"
+
+#define CONFIG_DISABLE_HFCLK 1
+
+#define SDP3430_ETHR_GPIO_IRQ_SDPV1	29
+#define SDP3430_ETHR_GPIO_IRQ_SDPV2	6
+#define SDP3430_SMC91X_CS		3
+
+#define SDP3430_TS_GPIO_IRQ_SDPV1	3
+#define SDP3430_TS_GPIO_IRQ_SDPV2	2
+
+#define ENABLE_VAUX3_DEDICATED	0x03
+#define ENABLE_VAUX3_DEV_GRP	0x20
+
+#define TWL4030_MSECURE_GPIO 22
+
+static struct resource sdp3430_smc91x_resources[] = {
+	[0] = {
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= 0,
+		.end	= 0,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
+	},
+};
+
+static struct platform_device sdp3430_smc91x_device = {
+	.name		= "smc91x",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(sdp3430_smc91x_resources),
+	.resource	= sdp3430_smc91x_resources,
+};
+
+static int sdp3430_keymap[] = {
+	KEY(0, 0, KEY_LEFT),
+	KEY(0, 1, KEY_RIGHT),
+	KEY(0, 2, KEY_A),
+	KEY(0, 3, KEY_B),
+	KEY(0, 4, KEY_C),
+	KEY(1, 0, KEY_DOWN),
+	KEY(1, 1, KEY_UP),
+	KEY(1, 2, KEY_E),
+	KEY(1, 3, KEY_F),
+	KEY(1, 4, KEY_G),
+	KEY(2, 0, KEY_ENTER),
+	KEY(2, 1, KEY_I),
+	KEY(2, 2, KEY_J),
+	KEY(2, 3, KEY_K),
+	KEY(2, 4, KEY_3),
+	KEY(3, 0, KEY_M),
+	KEY(3, 1, KEY_N),
+	KEY(3, 2, KEY_O),
+	KEY(3, 3, KEY_P),
+	KEY(3, 4, KEY_Q),
+	KEY(4, 0, KEY_R),
+	KEY(4, 1, KEY_4),
+	KEY(4, 2, KEY_T),
+	KEY(4, 3, KEY_U),
+	KEY(4, 4, KEY_D),
+	KEY(5, 0, KEY_V),
+	KEY(5, 1, KEY_W),
+	KEY(5, 2, KEY_L),
+	KEY(5, 3, KEY_S),
+	KEY(5, 4, KEY_H),
+	0
+};
+
+static struct twl4030_keypad_data sdp3430_kp_data = {
+	.rows		= 5,
+	.cols		= 6,
+	.keymap		= sdp3430_keymap,
+	.keymapsize	= ARRAY_SIZE(sdp3430_keymap),
+	.rep		= 1,
+};
+
+static int ts_gpio;	/* Needed for ads7846_get_pendown_state */
+
+/**
+ * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq
+ *
+ * @return - void. If request gpio fails then Flag KERN_ERR.
+ */
+static void ads7846_dev_init(void)
+{
+	if (gpio_request(ts_gpio, "ADS7846 pendown") < 0) {
+		printk(KERN_ERR "can't get ads746 pen down GPIO\n");
+		return;
+	}
+
+	gpio_direction_input(ts_gpio);
+
+	omap_set_gpio_debounce(ts_gpio, 1);
+	omap_set_gpio_debounce_time(ts_gpio, 0xa);
+}
+
+static int ads7846_get_pendown_state(void)
+{
+	return !gpio_get_value(ts_gpio);
+}
+
+static struct ads7846_platform_data tsc2046_config __initdata = {
+	.get_pendown_state	= ads7846_get_pendown_state,
+	.keep_vref_on		= 1,
+};
+
+
+static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
+	.turbo_mode	= 0,
+	.single_channel	= 1,	/* 0: slave, 1: master */
+};
+
+static struct spi_board_info sdp3430_spi_board_info[] __initdata = {
+	[0] = {
+		/*
+		 * TSC2046 operates at a max freqency of 2MHz, so
+		 * operate slightly below at 1.5MHz
+		 */
+		.modalias		= "ads7846",
+		.bus_num		= 1,
+		.chip_select		= 0,
+		.max_speed_hz		= 1500000,
+		.controller_data	= &tsc2046_mcspi_config,
+		.irq			= 0,
+		.platform_data		= &tsc2046_config,
+	},
+};
+
+static struct platform_device sdp3430_lcd_device = {
+	.name		= "sdp2430_lcd",
+	.id		= -1,
+};
+
+static struct regulator_consumer_supply sdp3430_vdac_supply = {
+	.supply		= "vdac",
+	.dev		= &sdp3430_lcd_device.dev,
+};
+
+static struct regulator_consumer_supply sdp3430_vdvi_supply = {
+	.supply		= "vdvi",
+	.dev		= &sdp3430_lcd_device.dev,
+};
+
+static struct platform_device *sdp3430_devices[] __initdata = {
+	&sdp3430_smc91x_device,
+	&sdp3430_lcd_device,
+};
+
+static inline void __init sdp3430_init_smc91x(void)
+{
+	int eth_cs;
+	unsigned long cs_mem_base;
+	int eth_gpio = 0;
+
+	eth_cs = SDP3430_SMC91X_CS;
+
+	if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
+		printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
+		return;
+	}
+
+	sdp3430_smc91x_resources[0].start = cs_mem_base + 0x300;
+	sdp3430_smc91x_resources[0].end = cs_mem_base + 0x30f;
+	udelay(100);
+
+	if (omap_rev() > OMAP3430_REV_ES1_0)
+		eth_gpio = SDP3430_ETHR_GPIO_IRQ_SDPV2;
+	else
+		eth_gpio = SDP3430_ETHR_GPIO_IRQ_SDPV1;
+
+	sdp3430_smc91x_resources[1].start = gpio_to_irq(eth_gpio);
+
+	if (gpio_request(eth_gpio, "SMC91x irq") < 0) {
+		printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
+			eth_gpio);
+		return;
+	}
+	gpio_direction_input(eth_gpio);
+}
+
+static void __init omap_3430sdp_init_irq(void)
+{
+	omap2_init_common_hw();
+	omap_init_irq();
+	omap_gpio_init();
+	sdp3430_init_smc91x();
+}
+
+static struct omap_uart_config sdp3430_uart_config __initdata = {
+	.enabled_uarts	= ((1 << 0) | (1 << 1) | (1 << 2)),
+};
+
+static struct omap_lcd_config sdp3430_lcd_config __initdata = {
+	.ctrl_name	= "internal",
+};
+
+static struct omap_board_config_kernel sdp3430_config[] __initdata = {
+	{ OMAP_TAG_UART,	&sdp3430_uart_config },
+	{ OMAP_TAG_LCD,		&sdp3430_lcd_config },
+};
+
+static int sdp3430_batt_table[] = {
+/* 0 C*/
+30800, 29500, 28300, 27100,
+26000, 24900, 23900, 22900, 22000, 21100, 20300, 19400, 18700, 17900,
+17200, 16500, 15900, 15300, 14700, 14100, 13600, 13100, 12600, 12100,
+11600, 11200, 10800, 10400, 10000, 9630,   9280,   8950,   8620,   8310,
+8020,   7730,   7460,   7200,   6950,   6710,   6470,   6250,   6040,   5830,
+5640,   5450,   5260,   5090,   4920,   4760,   4600,   4450,   4310,   4170,
+4040,   3910,   3790,   3670,   3550
+};
+
+static struct twl4030_bci_platform_data sdp3430_bci_data = {
+	.battery_tmp_tbl	= sdp3430_batt_table,
+	.tblsize		= ARRAY_SIZE(sdp3430_batt_table),
+};
+
+static struct twl4030_hsmmc_info mmc[] = {
+	{
+		.mmc		= 1,
+		/* 8 bits (default) requires S6.3 == ON,
+		 * so the SIM card isn't used; else 4 bits.
+		 */
+		.wires		= 8,
+		.gpio_wp	= 4,
+	},
+	{
+		.mmc		= 2,
+		.wires		= 8,
+		.gpio_wp	= 7,
+	},
+	{}	/* Terminator */
+};
+
+static struct regulator_consumer_supply sdp3430_vmmc1_supply = {
+	.supply			= "vmmc",
+};
+
+static struct regulator_consumer_supply sdp3430_vsim_supply = {
+	.supply			= "vmmc_aux",
+};
+
+static struct regulator_consumer_supply sdp3430_vmmc2_supply = {
+	.supply			= "vmmc",
+};
+
+static int sdp3430_twl_gpio_setup(struct device *dev,
+		unsigned gpio, unsigned ngpio)
+{
+	/* gpio + 0 is "mmc0_cd" (input/IRQ),
+	 * gpio + 1 is "mmc1_cd" (input/IRQ)
+	 */
+	mmc[0].gpio_cd = gpio + 0;
+	mmc[1].gpio_cd = gpio + 1;
+	twl4030_mmc_init(mmc);
+
+	/* link regulators to MMC adapters ... we "know" the
+	 * regulators will be set up only *after* we return.
+	 */
+	sdp3430_vmmc1_supply.dev = mmc[0].dev;
+	sdp3430_vsim_supply.dev = mmc[0].dev;
+	sdp3430_vmmc2_supply.dev = mmc[1].dev;
+
+	/* gpio + 7 is "sub_lcd_en_bkl" (output/PWM1) */
+	gpio_request(gpio + 7, "sub_lcd_en_bkl");
+	gpio_direction_output(gpio + 7, 0);
+
+	/* gpio + 15 is "sub_lcd_nRST" (output) */
+	gpio_request(gpio + 15, "sub_lcd_nRST");
+	gpio_direction_output(gpio + 15, 0);
+
+	return 0;
+}
+
+static struct twl4030_gpio_platform_data sdp3430_gpio_data = {
+	.gpio_base	= OMAP_MAX_GPIO_LINES,
+	.irq_base	= TWL4030_GPIO_IRQ_BASE,
+	.irq_end	= TWL4030_GPIO_IRQ_END,
+	.pulldowns	= BIT(2) | BIT(6) | BIT(8) | BIT(13)
+				| BIT(16) | BIT(17),
+	.setup		= sdp3430_twl_gpio_setup,
+};
+
+static struct twl4030_usb_data sdp3430_usb_data = {
+	.usb_mode	= T2_USB_MODE_ULPI,
+};
+
+static struct twl4030_madc_platform_data sdp3430_madc_data = {
+	.irq_line	= 1,
+};
+
+/*
+ * Apply all the fixed voltages since most versions of U-Boot
+ * don't bother with that initialization.
+ */
+
+/* VAUX1 for mainboard (irda and sub-lcd) */
+static struct regulator_init_data sdp3430_vaux1 = {
+	.constraints = {
+		.min_uV			= 2800000,
+		.max_uV			= 2800000,
+		.apply_uV		= true,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_MODE
+					| REGULATOR_CHANGE_STATUS,
+	},
+};
+
+/* VAUX2 for camera module */
+static struct regulator_init_data sdp3430_vaux2 = {
+	.constraints = {
+		.min_uV			= 2800000,
+		.max_uV			= 2800000,
+		.apply_uV		= true,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_MODE
+					| REGULATOR_CHANGE_STATUS,
+	},
+};
+
+/* VAUX3 for LCD board */
+static struct regulator_init_data sdp3430_vaux3 = {
+	.constraints = {
+		.min_uV			= 2800000,
+		.max_uV			= 2800000,
+		.apply_uV		= true,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_MODE
+					| REGULATOR_CHANGE_STATUS,
+	},
+};
+
+/* VAUX4 for OMAP VDD_CSI2 (camera) */
+static struct regulator_init_data sdp3430_vaux4 = {
+	.constraints = {
+		.min_uV			= 1800000,
+		.max_uV			= 1800000,
+		.apply_uV		= true,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_MODE
+					| REGULATOR_CHANGE_STATUS,
+	},
+};
+
+/* VMMC1 for OMAP VDD_MMC1 (i/o) and MMC1 card */
+static struct regulator_init_data sdp3430_vmmc1 = {
+	.constraints = {
+		.min_uV			= 1850000,
+		.max_uV			= 3150000,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
+					| REGULATOR_CHANGE_MODE
+					| REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies	= 1,
+	.consumer_supplies	= &sdp3430_vmmc1_supply,
+};
+
+/* VMMC2 for MMC2 card */
+static struct regulator_init_data sdp3430_vmmc2 = {
+	.constraints = {
+		.min_uV			= 1850000,
+		.max_uV			= 1850000,
+		.apply_uV		= true,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_MODE
+					| REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies	= 1,
+	.consumer_supplies	= &sdp3430_vmmc2_supply,
+};
+
+/* VSIM for OMAP VDD_MMC1A (i/o for DAT4..DAT7) */
+static struct regulator_init_data sdp3430_vsim = {
+	.constraints = {
+		.min_uV			= 1800000,
+		.max_uV			= 3000000,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
+					| REGULATOR_CHANGE_MODE
+					| REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies	= 1,
+	.consumer_supplies	= &sdp3430_vsim_supply,
+};
+
+/* VDAC for DSS driving S-Video */
+static struct regulator_init_data sdp3430_vdac = {
+	.constraints = {
+		.min_uV			= 1800000,
+		.max_uV			= 1800000,
+		.apply_uV		= true,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_MODE
+					| REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies	= 1,
+	.consumer_supplies	= &sdp3430_vdac_supply,
+};
+
+/* VPLL2 for digital video outputs */
+static struct regulator_init_data sdp3430_vpll2 = {
+	.constraints = {
+		.name			= "VDVI",
+		.min_uV			= 1800000,
+		.max_uV			= 1800000,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_MODE
+					| REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies	= 1,
+	.consumer_supplies	= &sdp3430_vdvi_supply,
+};
+
+static struct twl4030_platform_data sdp3430_twldata = {
+	.irq_base	= TWL4030_IRQ_BASE,
+	.irq_end	= TWL4030_IRQ_END,
+
+	/* platform_data for children goes here */
+	.bci		= &sdp3430_bci_data,
+	.gpio		= &sdp3430_gpio_data,
+	.madc		= &sdp3430_madc_data,
+	.keypad		= &sdp3430_kp_data,
+	.usb		= &sdp3430_usb_data,
+
+	.vaux1		= &sdp3430_vaux1,
+	.vaux2		= &sdp3430_vaux2,
+	.vaux3		= &sdp3430_vaux3,
+	.vaux4		= &sdp3430_vaux4,
+	.vmmc1		= &sdp3430_vmmc1,
+	.vmmc2		= &sdp3430_vmmc2,
+	.vsim		= &sdp3430_vsim,
+	.vdac		= &sdp3430_vdac,
+	.vpll2		= &sdp3430_vpll2,
+};
+
+static struct i2c_board_info __initdata sdp3430_i2c_boardinfo[] = {
+	{
+		I2C_BOARD_INFO("twl4030", 0x48),
+		.flags = I2C_CLIENT_WAKE,
+		.irq = INT_34XX_SYS_NIRQ,
+		.platform_data = &sdp3430_twldata,
+	},
+};
+
+static int __init omap3430_i2c_init(void)
+{
+	/* i2c1 for PMIC only */
+	omap_register_i2c_bus(1, 2600, sdp3430_i2c_boardinfo,
+			ARRAY_SIZE(sdp3430_i2c_boardinfo));
+	/* i2c2 on camera connector (for sensor control) and optional isp1301 */
+	omap_register_i2c_bus(2, 400, NULL, 0);
+	/* i2c3 on display connector (for DVI, tfp410) */
+	omap_register_i2c_bus(3, 400, NULL, 0);
+	return 0;
+}
+
+static void __init omap_3430sdp_init(void)
+{
+	omap3430_i2c_init();
+	platform_add_devices(sdp3430_devices, ARRAY_SIZE(sdp3430_devices));
+	omap_board_config = sdp3430_config;
+	omap_board_config_size = ARRAY_SIZE(sdp3430_config);
+	if (omap_rev() > OMAP3430_REV_ES1_0)
+		ts_gpio = SDP3430_TS_GPIO_IRQ_SDPV2;
+	else
+		ts_gpio = SDP3430_TS_GPIO_IRQ_SDPV1;
+	sdp3430_spi_board_info[0].irq = gpio_to_irq(ts_gpio);
+	spi_register_board_info(sdp3430_spi_board_info,
+				ARRAY_SIZE(sdp3430_spi_board_info));
+	ads7846_dev_init();
+	omap_serial_init();
+	usb_musb_init();
+}
+
+static void __init omap_3430sdp_map_io(void)
+{
+	omap2_set_globals_343x();
+	omap2_map_common_io();
+}
+
+MACHINE_START(OMAP_3430SDP, "OMAP3430 3430SDP board")
+	/* Maintainer: Syed Khasim - Texas Instruments Inc */
+	.phys_io	= 0x48000000,
+	.io_pg_offst	= ((0xd8000000) >> 18) & 0xfffc,
+	.boot_params	= 0x80000100,
+	.map_io		= omap_3430sdp_map_io,
+	.init_irq	= omap_3430sdp_init_irq,
+	.init_machine	= omap_3430sdp_init,
+	.timer		= &omap_timer,
+MACHINE_END