[PATCH 07/12] omap3: Add minimal IGEP v2 support

[Tony Lindgren <tony@atomide.com>]

From: Enric Balletbo i Serra <eballetbo@iseebcn.com>

The IGEP v2 board is a low-cost, fan-less and industrial temperature
range single board computer that unleashes laptop-like performance and
expandability without the bulk, expense, or noise of typical desktop
machines. Its architecture shares much in common with other OMAP3 boards.

Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/Kconfig          |    4 +
 arch/arm/mach-omap2/Makefile         |    2 
 arch/arm/mach-omap2/board-igep0020.c |  251 ++++++++++++++++++++++++++++++++++
 3 files changed, 257 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/mach-omap2/board-igep0020.c

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index fa20996..119e7b0 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -105,6 +105,10 @@ config MACH_CM_T35
 	bool "CompuLab CM-T35 module"
 	depends on ARCH_OMAP3 && ARCH_OMAP34XX
 
+config MACH_IGEP0020
+	bool "IGEP0020"
+	depends on ARCH_OMAP3 && ARCH_OMAP34XX
+
 config MACH_OMAP_4430SDP
 	bool "OMAP 4430 SDP board"
 	depends on ARCH_OMAP4
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 1b37f2a..c2f3de9 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -85,6 +85,8 @@ obj-$(CONFIG_MACH_OMAP_ZOOM3)		+= board-zoom3.o \
 					   board-zoom-debugboard.o
 obj-$(CONFIG_MACH_CM_T35)		+= board-cm-t35.o \
 					   mmc-twl4030.o
+obj-$(CONFIG_MACH_IGEP0020)		+= board-igep0020.o \
+					   mmc-twl4030.o
 
 obj-$(CONFIG_MACH_OMAP_4430SDP)		+= board-4430sdp.o
 
diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c
new file mode 100644
index 0000000..fa62e80
--- /dev/null
+++ b/arch/arm/mach-omap2/board-igep0020.c
@@ -0,0 +1,251 @@
+/*
+ * Copyright (C) 2009 Integration Software and Electronic Engineering.
+ *
+ * Modified from mach-omap2/board-generic.c
+ *
+ * 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/err.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+#include <linux/interrupt.h>
+
+#include <linux/regulator/machine.h>
+#include <linux/i2c/twl4030.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+#include <plat/board.h>
+#include <plat/common.h>
+#include <plat/gpmc.h>
+#include <plat/mux.h>
+#include <plat/usb.h>
+
+#include "mmc-twl4030.h"
+
+#define IGEP2_SMSC911X_CS       5
+#define IGEP2_SMSC911X_GPIO     176
+#define IGEP2_GPIO_USBH_NRESET  24
+#define IGEP2_GPIO_LED0_RED 	26
+#define IGEP2_GPIO_LED0_GREEN 	27
+#define IGEP2_GPIO_LED1_RED   	28
+
+#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
+
+#include <linux/smsc911x.h>
+
+static struct smsc911x_platform_config igep2_smsc911x_config = {
+	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
+	.irq_type	= SMSC911X_IRQ_TYPE_OPEN_DRAIN,
+	.flags		= SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS  ,
+	.phy_interface	= PHY_INTERFACE_MODE_MII,
+};
+
+static struct resource igep2_smsc911x_resources[] = {
+	{
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= OMAP_GPIO_IRQ(IGEP2_SMSC911X_GPIO),
+		.end	= OMAP_GPIO_IRQ(IGEP2_SMSC911X_GPIO),
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
+	},
+};
+
+static struct platform_device igep2_smsc911x_device = {
+	.name		= "smsc911x",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(igep2_smsc911x_resources),
+	.resource	= igep2_smsc911x_resources,
+	.dev		= {
+		.platform_data = &igep2_smsc911x_config,
+	},
+};
+
+static inline void __init igep2_init_smsc911x(void)
+{
+	unsigned long cs_mem_base;
+
+	if (gpmc_cs_request(IGEP2_SMSC911X_CS, SZ_16M, &cs_mem_base) < 0) {
+		pr_err("IGEP v2: Failed request for GPMC mem for smsc911x\n");
+		gpmc_cs_free(IGEP2_SMSC911X_CS);
+		return;
+	}
+
+	igep2_smsc911x_resources[0].start = cs_mem_base + 0x0;
+	igep2_smsc911x_resources[0].end   = cs_mem_base + 0xff;
+
+	if ((gpio_request(IGEP2_SMSC911X_GPIO, "SMSC911X IRQ") == 0) &&
+	    (gpio_direction_input(IGEP2_SMSC911X_GPIO) == 0)) {
+		gpio_export(IGEP2_SMSC911X_GPIO, 0);
+	} else {
+		pr_err("IGEP v2: Could not obtain gpio for for SMSC911X IRQ\n");
+		return;
+	}
+
+	platform_device_register(&igep2_smsc911x_device);
+}
+
+#else
+static inline void __init igep2_init_smsc911x(void) { }
+#endif
+
+static struct omap_board_config_kernel igep2_config[] __initdata = {
+};
+
+static struct regulator_consumer_supply igep2_vmmc1_supply = {
+	.supply		= "vmmc",
+};
+
+/* VMMC1 for OMAP VDD_MMC1 (i/o) and MMC1 card */
+static struct regulator_init_data igep2_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      = &igep2_vmmc1_supply,
+};
+
+static struct twl4030_hsmmc_info mmc[] = {
+	{
+		.mmc		= 1,
+		.wires		= 4,
+		.gpio_cd	= -EINVAL,
+		.gpio_wp	= -EINVAL,
+	},
+	{
+		.mmc		= 2,
+		.wires		= 4,
+		.gpio_cd	= -EINVAL,
+		.gpio_wp	= -EINVAL,
+	},
+	{}      /* Terminator */
+};
+
+static int igep2_twl_gpio_setup(struct device *dev,
+		unsigned gpio, unsigned ngpio)
+{
+	/* gpio + 0 is "mmc0_cd" (input/IRQ) */
+	mmc[0].gpio_cd = gpio + 0;
+	twl4030_mmc_init(mmc);
+
+	/* link regulators to MMC adapters ... we "know" the
+	 * regulators will be set up only *after* we return.
+	*/
+	igep2_vmmc1_supply.dev = mmc[0].dev;
+
+	return 0;
+};
+
+static struct twl4030_gpio_platform_data igep2_gpio_data = {
+	.gpio_base	= OMAP_MAX_GPIO_LINES,
+	.irq_base	= TWL4030_GPIO_IRQ_BASE,
+	.irq_end	= TWL4030_GPIO_IRQ_END,
+	.use_leds	= false,
+	.setup		= igep2_twl_gpio_setup,
+};
+
+static struct twl4030_usb_data igep2_usb_data = {
+	.usb_mode	= T2_USB_MODE_ULPI,
+};
+
+static void __init igep2_init_irq(void)
+{
+	omap_board_config = igep2_config;
+	omap_board_config_size = ARRAY_SIZE(igep2_config);
+	omap2_init_common_hw(NULL, NULL);
+	omap_init_irq();
+	omap_gpio_init();
+}
+
+static struct twl4030_platform_data igep2_twldata = {
+	.irq_base	= TWL4030_IRQ_BASE,
+	.irq_end	= TWL4030_IRQ_END,
+
+	/* platform_data for children goes here */
+	.usb		= &igep2_usb_data,
+	.gpio		= &igep2_gpio_data,
+	.vmmc1          = &igep2_vmmc1,
+
+};
+
+static struct i2c_board_info __initdata igep2_i2c_boardinfo[] = {
+	{
+		I2C_BOARD_INFO("twl4030", 0x48),
+		.flags		= I2C_CLIENT_WAKE,
+		.irq		= INT_34XX_SYS_NIRQ,
+		.platform_data	= &igep2_twldata,
+	},
+};
+
+static int __init igep2_i2c_init(void)
+{
+	omap_register_i2c_bus(1, 2600, igep2_i2c_boardinfo,
+			ARRAY_SIZE(igep2_i2c_boardinfo));
+	/* Bus 3 is attached to the DVI port where devices like the pico DLP
+	 * projector don't work reliably with 400kHz */
+	omap_register_i2c_bus(3, 100, NULL, 0);
+	return 0;
+}
+
+static void __init igep2_init(void)
+{
+	igep2_i2c_init();
+	omap_serial_init();
+	usb_musb_init();
+
+	igep2_init_smsc911x();
+
+	/* GPIO userspace leds */
+	if ((gpio_request(IGEP2_GPIO_LED0_RED, "GPIO_LED0_RED") == 0) &&
+	    (gpio_direction_output(IGEP2_GPIO_LED0_RED, 1) == 0)) {
+		gpio_export(IGEP2_GPIO_LED0_RED, 0);
+		gpio_set_value(IGEP2_GPIO_LED0_RED, 0);
+	} else
+		pr_warning("IGEP v2: Could not obtain gpio GPIO_LED0_RED\n");
+
+	if ((gpio_request(IGEP2_GPIO_LED0_GREEN, "GPIO_LED0_GREEN") == 0) &&
+	    (gpio_direction_output(IGEP2_GPIO_LED0_GREEN, 1) == 0)) {
+		gpio_export(IGEP2_GPIO_LED0_GREEN, 0);
+		gpio_set_value(IGEP2_GPIO_LED0_GREEN, 0);
+	} else
+		pr_warning("IGEP v2: Could not obtain gpio GPIO_LED0_GREEN\n");
+
+	if ((gpio_request(IGEP2_GPIO_LED1_RED, "GPIO_LED1_RED") == 0) &&
+	    (gpio_direction_output(IGEP2_GPIO_LED1_RED, 1) == 0)) {
+		gpio_export(IGEP2_GPIO_LED1_RED, 0);
+		gpio_set_value(IGEP2_GPIO_LED1_RED, 0);
+	} else
+		pr_warning("IGEP v2: Could not obtain gpio GPIO_LED1_RED\n");
+}
+
+static void __init igep2_map_io(void)
+{
+	omap2_set_globals_343x();
+	omap2_map_common_io();
+}
+
+MACHINE_START(IGEP0020, "IGEP v2 board")
+	.phys_io	= 0x48000000,
+	.io_pg_offst	= ((0xfa000000) >> 18) & 0xfffc,
+	.boot_params	= 0x80000100,
+	.map_io		= igep2_map_io,
+	.init_irq	= igep2_init_irq,
+	.init_machine	= igep2_init,
+	.timer		= &omap_timer,
+MACHINE_END