omap3: Add CompuLab CM-T35 board support

This patch adds basic support for CompuLab CM-T35 module.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 507 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/board-cm-t35.c b/arch/arm/mach-omap2/board-cm-t35.c
new file mode 100644
index 000000000000..22c45290db63
--- /dev/null
+++ b/arch/arm/mach-omap2/board-cm-t35.c
@@ -0,0 +1,507 @@
+/*
+ * board-cm-t35.c (CompuLab CM-T35 module)
+ *
+ * Copyright (C) 2009 CompuLab, Ltd.
+ * Author: Mike Rapoport <mike@compulab.co.il>
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/input/matrix_keypad.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+
+#include <linux/i2c/at24.h>
+#include <linux/i2c/twl4030.h>
+#include <linux/regulator/machine.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <plat/board.h>
+#include <plat/common.h>
+#include <plat/mux.h>
+#include <plat/nand.h>
+#include <plat/gpmc.h>
+#include <plat/usb.h>
+
+#include <mach/hardware.h>
+
+#include "sdram-micron-mt46h32m32lf-6.h"
+#include "mmc-twl4030.h"
+
+#define CM_T35_GPIO_PENDOWN     57
+
+#define CM_T35_SMSC911X_CS      5
+#define CM_T35_SMSC911X_GPIO    163
+#define SB_T35_SMSC911X_CS      4
+#define SB_T35_SMSC911X_GPIO    65
+
+#define NAND_BLOCK_SIZE         SZ_128K
+#define GPMC_CS0_BASE           0x60
+#define GPMC_CS0_BASE_ADDR      (OMAP34XX_GPMC_VIRT + GPMC_CS0_BASE)
+
+#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
+#include <linux/smsc911x.h>
+
+static struct smsc911x_platform_config cm_t35_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 cm_t35_smsc911x_resources[] = {
+        {
+                .flags  = IORESOURCE_MEM,
+        },
+        {
+                .start  = OMAP_GPIO_IRQ(CM_T35_SMSC911X_GPIO),
+                .end    = OMAP_GPIO_IRQ(CM_T35_SMSC911X_GPIO),
+                .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
+        },
+};
+
+static struct platform_device cm_t35_smsc911x_device = {
+        .name           = "smsc911x",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(cm_t35_smsc911x_resources),
+        .resource       = cm_t35_smsc911x_resources,
+        .dev            = {
+                .platform_data = &cm_t35_smsc911x_config,
+        },
+};
+
+static struct resource sb_t35_smsc911x_resources[] = {
+        {
+                .flags  = IORESOURCE_MEM,
+        },
+        {
+                .start  = OMAP_GPIO_IRQ(SB_T35_SMSC911X_GPIO),
+                .end    = OMAP_GPIO_IRQ(SB_T35_SMSC911X_GPIO),
+                .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
+        },
+};
+
+static struct platform_device sb_t35_smsc911x_device = {
+        .name           = "smsc911x",
+        .id             = 1,
+        .num_resources  = ARRAY_SIZE(sb_t35_smsc911x_resources),
+        .resource       = sb_t35_smsc911x_resources,
+        .dev            = {
+                .platform_data = &cm_t35_smsc911x_config,
+        },
+};
+
+static void __init cm_t35_init_smsc911x(struct platform_device *dev,
+                                        int cs, int irq_gpio)
+{
+        unsigned long cs_mem_base;
+
+        if (gpmc_cs_request(cs, SZ_16M, &cs_mem_base) < 0) {
+                pr_err("CM-T35: Failed request for GPMC mem for smsc911x\n");
+                return;
+        }
+
+        dev->resource[0].start = cs_mem_base + 0x0;
+        dev->resource[0].end   = cs_mem_base + 0xff;
+
+        if ((gpio_request(irq_gpio, "ETH IRQ") == 0) &&
+            (gpio_direction_input(irq_gpio) == 0)) {
+                gpio_export(irq_gpio, 0);
+        } else {
+                pr_err("CM-T35: could not obtain gpio for SMSC911X IRQ\n");
+                return;
+        }
+
+        platform_device_register(dev);
+}
+
+static void __init cm_t35_init_ethernet(void)
+{
+        cm_t35_init_smsc911x(&cm_t35_smsc911x_device,
+                             CM_T35_SMSC911X_CS, CM_T35_SMSC911X_GPIO);
+        cm_t35_init_smsc911x(&sb_t35_smsc911x_device,
+                             SB_T35_SMSC911X_CS, SB_T35_SMSC911X_GPIO);
+}
+#else
+static inline void __init cm_t35_init_ethernet(void) { return; }
+#endif
+
+#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
+#include <linux/leds.h>
+
+static struct gpio_led cm_t35_leds[] = {
+        [0] = {
+                .gpio                   = 186,
+                .name                   = "cm-t35:green",
+                .default_trigger        = "heartbeat",
+                .active_low             = 0,
+        },
+};
+
+static struct gpio_led_platform_data cm_t35_led_pdata = {
+        .num_leds       = ARRAY_SIZE(cm_t35_leds),
+        .leds           = cm_t35_leds,
+};
+
+static struct platform_device cm_t35_led_device = {
+        .name           = "leds-gpio",
+        .id             = -1,
+        .dev            = {
+                .platform_data  = &cm_t35_led_pdata,
+        },
+};
+
+static void __init cm_t35_init_led(void)
+{
+        platform_device_register(&cm_t35_led_device);
+}
+#else
+static inline void cm_t35_init_led(void) {}
+#endif
+
+#if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
+
+static struct mtd_partition cm_t35_nand_partitions[] = {
+        {
+                .name           = "xloader",
+                .offset         = 0,                    /* Offset = 0x00000 */
+                .size           = 4 * NAND_BLOCK_SIZE,
+                .mask_flags     = MTD_WRITEABLE
+        },
+        {
+                .name           = "uboot",
+                .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
+                .size           = 15 * NAND_BLOCK_SIZE,
+        },
+        {
+                .name           = "uboot environment",
+                .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
+                .size           = 2 * NAND_BLOCK_SIZE,
+        },
+        {
+                .name           = "linux",
+                .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
+                .size           = 32 * NAND_BLOCK_SIZE,
+        },
+        {
+                .name           = "rootfs",
+                .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
+                .size           = MTDPART_SIZ_FULL,
+        },
+};
+
+static struct omap_nand_platform_data cm_t35_nand_data = {
+        .parts                  = cm_t35_nand_partitions,
+        .nr_parts               = ARRAY_SIZE(cm_t35_nand_partitions),
+        .dma_channel            = -1,   /* disable DMA in OMAP NAND driver */
+        .cs                     = 0,
+        .gpmc_cs_baseaddr       = (void __iomem *)GPMC_CS0_BASE_ADDR,
+        .gpmc_baseaddr          = (void __iomem *)OMAP34XX_GPMC_VIRT,
+
+};
+
+static struct resource cm_t35_nand_resource = {
+        .flags          = IORESOURCE_MEM,
+};
+
+static struct platform_device cm_t35_nand_device = {
+        .name           = "omap2-nand",
+        .id             = -1,
+        .num_resources  = 1,
+        .resource       = &cm_t35_nand_resource,
+        .dev            = {
+                .platform_data  = &cm_t35_nand_data,
+        },
+};
+
+static void __init cm_t35_init_nand(void)
+{
+        if (platform_device_register(&cm_t35_nand_device) < 0)
+                pr_err("CM-T35: Unable to register NAND device\n");
+}
+#else
+static inline void cm_t35_init_nand(void) {}
+#endif
+
+#if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
+        defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
+#include <linux/spi/spi.h>
+#include <linux/spi/ads7846.h>
+
+#include <plat/mcspi.h>
+
+static struct omap2_mcspi_device_config ads7846_mcspi_config = {
+        .turbo_mode     = 0,
+        .single_channel = 1,    /* 0: slave, 1: master */
+};
+
+static int ads7846_get_pendown_state(void)
+{
+        return !gpio_get_value(CM_T35_GPIO_PENDOWN);
+}
+
+static struct ads7846_platform_data ads7846_config = {
+        .x_max                  = 0x0fff,
+        .y_max                  = 0x0fff,
+        .x_plate_ohms           = 180,
+        .pressure_max           = 255,
+        .debounce_max           = 10,
+        .debounce_tol           = 3,
+        .debounce_rep           = 1,
+        .get_pendown_state      = ads7846_get_pendown_state,
+        .keep_vref_on           = 1,
+};
+
+static struct spi_board_info cm_t35_spi_board_info[] __initdata = {
+        {
+                .modalias               = "ads7846",
+                .bus_num                = 1,
+                .chip_select            = 0,
+                .max_speed_hz           = 1500000,
+                .controller_data        = &ads7846_mcspi_config,
+                .irq                    = OMAP_GPIO_IRQ(CM_T35_GPIO_PENDOWN),
+                .platform_data          = &ads7846_config,
+        },
+};
+
+static void __init cm_t35_init_ads7846(void)
+{
+        if ((gpio_request(CM_T35_GPIO_PENDOWN, "ADS7846_PENDOWN") == 0) &&
+            (gpio_direction_input(CM_T35_GPIO_PENDOWN) == 0)) {
+                gpio_export(CM_T35_GPIO_PENDOWN, 0);
+        } else {
+                pr_err("CM-T35: could not obtain gpio for ADS7846_PENDOWN\n");
+                return;
+        }
+
+        spi_register_board_info(cm_t35_spi_board_info,
+                                ARRAY_SIZE(cm_t35_spi_board_info));
+}
+#else
+static inline void cm_t35_init_ads7846(void) {}
+#endif
+
+static struct regulator_consumer_supply cm_t35_vmmc1_supply = {
+        .supply                 = "vmmc",
+};
+
+static struct regulator_consumer_supply cm_t35_vsim_supply = {
+        .supply                 = "vmmc_aux",
+};
+
+/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
+static struct regulator_init_data cm_t35_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      = &cm_t35_vmmc1_supply,
+};
+
+/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
+static struct regulator_init_data cm_t35_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      = &cm_t35_vsim_supply,
+};
+
+static struct twl4030_usb_data cm_t35_usb_data = {
+        .usb_mode       = T2_USB_MODE_ULPI,
+};
+
+static int cm_t35_keymap[] = {
+        KEY(0, 0, KEY_A),       KEY(0, 1, KEY_B),       KEY(0, 2, KEY_LEFT),
+        KEY(1, 0, KEY_UP),      KEY(1, 1, KEY_ENTER),   KEY(1, 2, KEY_DOWN),
+        KEY(2, 0, KEY_RIGHT),   KEY(2, 1, KEY_C),       KEY(2, 2, KEY_D),
+};
+
+static struct matrix_keymap_data cm_t35_keymap_data = {
+        .keymap                 = cm_t35_keymap,
+        .keymap_size            = ARRAY_SIZE(cm_t35_keymap),
+};
+
+static struct twl4030_keypad_data cm_t35_kp_data = {
+        .keymap_data    = &cm_t35_keymap_data,
+        .rows           = 3,
+        .cols           = 3,
+        .rep            = 1,
+};
+
+static struct twl4030_hsmmc_info mmc[] = {
+        {
+                .mmc            = 1,
+                .wires          = 4,
+                .gpio_cd        = -EINVAL,
+                .gpio_wp        = -EINVAL,
+
+        },
+        {
+                .mmc            = 2,
+                .wires          = 4,
+                .transceiver    = 1,
+                .gpio_cd        = -EINVAL,
+                .gpio_wp        = -EINVAL,
+                .ocr_mask       = 0x00100000,   /* 3.3V */
+        },
+        {}      /* Terminator */
+};
+
+static struct ehci_hcd_omap_platform_data ehci_pdata = {
+        .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
+        .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
+        .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
+
+        .phy_reset  = true,
+        .reset_gpio_port[0]  = -EINVAL,
+        .reset_gpio_port[1]  = -EINVAL,
+        .reset_gpio_port[2]  = -EINVAL
+};
+
+static int cm_t35_twl_gpio_setup(struct device *dev, unsigned gpio,
+                                 unsigned ngpio)
+{
+        int wlan_rst = gpio + 2;
+
+        if ((gpio_request(wlan_rst, "WLAN RST") == 0) &&
+            (gpio_direction_output(wlan_rst, 1) == 0)) {
+                gpio_export(wlan_rst, 0);
+
+                udelay(10);
+                gpio_set_value(wlan_rst, 0);
+                udelay(10);
+                gpio_set_value(wlan_rst, 1);
+        } else {
+                pr_err("CM-T35: could not obtain gpio for WiFi reset\n");
+        }
+
+        /* gpio + 0 is "mmc0_cd" (input/IRQ) */
+        mmc[0].gpio_cd = gpio + 0;
+        twl4030_mmc_init(mmc);
+
+        /* link regulators to MMC adapters */
+        cm_t35_vmmc1_supply.dev = mmc[0].dev;
+        cm_t35_vsim_supply.dev = mmc[0].dev;
+
+        /* setup USB with proper PHY reset GPIOs */
+        ehci_pdata.reset_gpio_port[0] = gpio + 6;
+        ehci_pdata.reset_gpio_port[1] = gpio + 7;
+
+        usb_ehci_init(&ehci_pdata);
+
+        return 0;
+}
+
+static struct twl4030_gpio_platform_data cm_t35_gpio_data = {
+        .gpio_base      = OMAP_MAX_GPIO_LINES,
+        .irq_base       = TWL4030_GPIO_IRQ_BASE,
+        .irq_end        = TWL4030_GPIO_IRQ_END,
+        .setup          = cm_t35_twl_gpio_setup,
+};
+
+static struct twl4030_platform_data cm_t35_twldata = {
+        .irq_base       = TWL4030_IRQ_BASE,
+        .irq_end        = TWL4030_IRQ_END,
+
+        /* platform_data for children goes here */
+        .keypad         = &cm_t35_kp_data,
+        .usb            = &cm_t35_usb_data,
+        .gpio           = &cm_t35_gpio_data,
+        .vmmc1          = &cm_t35_vmmc1,
+        .vsim           = &cm_t35_vsim,
+};
+
+static struct i2c_board_info __initdata cm_t35_i2c_boardinfo[] = {
+        {
+                I2C_BOARD_INFO("tps65930", 0x48),
+                .flags          = I2C_CLIENT_WAKE,
+                .irq            = INT_34XX_SYS_NIRQ,
+                .platform_data  = &cm_t35_twldata,
+        },
+};
+
+static void __init cm_t35_init_i2c(void)
+{
+        omap_register_i2c_bus(1, 2600, cm_t35_i2c_boardinfo,
+                              ARRAY_SIZE(cm_t35_i2c_boardinfo));
+}
+
+static struct omap_board_config_kernel cm_t35_config[] __initdata = {
+};
+
+static void __init cm_t35_init_irq(void)
+{
+        omap_board_config = cm_t35_config;
+        omap_board_config_size = ARRAY_SIZE(cm_t35_config);
+
+        omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
+                             mt46h32m32lf6_sdrc_params);
+        omap_init_irq();
+        omap_gpio_init();
+}
+
+static void __init cm_t35_map_io(void)
+{
+        omap2_set_globals_343x();
+        omap2_map_common_io();
+}
+
+static void __init cm_t35_init(void)
+{
+        omap_serial_init();
+        cm_t35_init_i2c();
+        cm_t35_init_nand();
+        cm_t35_init_ads7846();
+        cm_t35_init_ethernet();
+        cm_t35_init_led();
+
+        usb_musb_init();
+
+        omap_cfg_reg(AF26_34XX_SYS_NIRQ);
+}
+
+MACHINE_START(CM_T35, "Compulab CM-T35")
+        .phys_io        = 0x48000000,
+        .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
+        .boot_params    = 0x80000100,
+        .map_io         = cm_t35_map_io,
+        .init_irq       = cm_t35_init_irq,
+        .init_machine   = cm_t35_init,
+        .timer          = &omap_timer,
+MACHINE_END