diff options
Diffstat (limited to 'arch/arm/mach-omap2/board-cm-t35.c')
| -rw-r--r-- | arch/arm/mach-omap2/board-cm-t35.c | 507 |
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 00000000000..22c45290db6 --- /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 |