omap3: Add minimal IGEP v2 support

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>

3 files changed, 257 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index fa2099624603..119e7b0133a4 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 1b37f2a1cc0c..c2f3de9a0a08 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 000000000000..fa62e80c13b7
--- /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