omap3: Board file of Always Innovating OMAP3-based Touch Book

Board file of Always Innovating OMAP3-based Touch Book

Signed-off-by: Gregoire Gentil <gregoire@gentil.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

3 files changed, 579 insertions, 1 deletions

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 5a74e1439772..06dc64d3b74e 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -90,6 +90,11 @@ config MACH_OMAP3_PANDORA
         depends on ARCH_OMAP3 && ARCH_OMAP34XX
         select OMAP_PACKAGE_CBB
 
+config MACH_OMAP3_TOUCHBOOK
+        bool "OMAP3 Touch Book"
+        depends on ARCH_OMAP3 && ARCH_OMAP34XX
+        select BACKLIGHT_CLASS_DEVICE
+
 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 e30e335dc2c3..b32678b848bc 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -105,7 +105,8 @@ obj-$(CONFIG_MACH_CM_T35)		+= board-cm-t35.o \
                                            mmc-twl4030.o
 obj-$(CONFIG_MACH_IGEP0020)             += board-igep0020.o \
                                            mmc-twl4030.o
-
+obj-$(CONFIG_MACH_OMAP3_TOUCHBOOK)      += board-omap3touchbook.o \
+                                           mmc-twl4030.o
 obj-$(CONFIG_MACH_OMAP_4430SDP)         += board-4430sdp.o
 
 obj-$(CONFIG_MACH_OMAP3517EVM)     += board-am3517evm.o
diff --git a/arch/arm/mach-omap2/board-omap3touchbook.c b/arch/arm/mach-omap2/board-omap3touchbook.c
new file mode 100644
index 000000000000..c9e5ebb4d91d
--- /dev/null
+++ b/arch/arm/mach-omap2/board-omap3touchbook.c
@@ -0,0 +1,572 @@
+/*
+ * linux/arch/arm/mach-omap2/board-omap3touchbook.c
+ *
+ * Copyright (C) 2009 Always Innovating
+ *
+ * Modified from mach-omap2/board-omap3beagleboard.c
+ *
+ * Initial code: Grégoire Gentil, Tim Yamin
+ *
+ * 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/leds.h>
+#include <linux/gpio.h>
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/nand.h>
+
+#include <plat/mcspi.h>
+#include <linux/spi/spi.h>
+
+#include <linux/spi/ads7846.h>
+
+#include <linux/regulator/machine.h>
+#include <linux/i2c/twl4030.h>
+
+#include <mach/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/flash.h>
+
+#include <plat/board.h>
+#include <plat/common.h>
+#include <plat/gpmc.h>
+#include <plat/nand.h>
+#include <plat/usb.h>
+#include <plat/timer-gp.h>
+
+#include "mux.h"
+#include "mmc-twl4030.h"
+
+#include <asm/setup.h>
+
+#define GPMC_CS0_BASE  0x60
+#define GPMC_CS_SIZE   0x30
+
+#define NAND_BLOCK_SIZE         SZ_128K
+
+#define OMAP3_AC_GPIO           136
+#define OMAP3_TS_GPIO           162
+#define TB_BL_PWM_TIMER         9
+#define TB_KILL_POWER_GPIO      168
+
+unsigned long touchbook_revision;
+
+static struct mtd_partition omap3touchbook_nand_partitions[] = {
+        /* All the partition sizes are listed in terms of NAND block size */
+        {
+                .name           = "X-Loader",
+                .offset         = 0,
+                .size           = 4 * NAND_BLOCK_SIZE,
+                .mask_flags     = MTD_WRITEABLE,        /* force read-only */
+        },
+        {
+                .name           = "U-Boot",
+                .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
+                .size           = 15 * NAND_BLOCK_SIZE,
+                .mask_flags     = MTD_WRITEABLE,        /* force read-only */
+        },
+        {
+                .name           = "U-Boot Env",
+                .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
+                .size           = 1 * NAND_BLOCK_SIZE,
+        },
+        {
+                .name           = "Kernel",
+                .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
+                .size           = 32 * NAND_BLOCK_SIZE,
+        },
+        {
+                .name           = "File System",
+                .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
+                .size           = MTDPART_SIZ_FULL,
+        },
+};
+
+static struct omap_nand_platform_data omap3touchbook_nand_data = {
+        .options        = NAND_BUSWIDTH_16,
+        .parts          = omap3touchbook_nand_partitions,
+        .nr_parts       = ARRAY_SIZE(omap3touchbook_nand_partitions),
+        .dma_channel    = -1,           /* disable DMA in OMAP NAND driver */
+        .nand_setup     = NULL,
+        .dev_ready      = NULL,
+};
+
+static struct resource omap3touchbook_nand_resource = {
+        .flags          = IORESOURCE_MEM,
+};
+
+static struct platform_device omap3touchbook_nand_device = {
+        .name           = "omap2-nand",
+        .id             = -1,
+        .dev            = {
+                .platform_data  = &omap3touchbook_nand_data,
+        },
+        .num_resources  = 1,
+        .resource       = &omap3touchbook_nand_resource,
+};
+
+#include "sdram-micron-mt46h32m32lf-6.h"
+
+static struct twl4030_hsmmc_info mmc[] = {
+        {
+                .mmc            = 1,
+                .wires          = 8,
+                .gpio_wp        = 29,
+        },
+        {}      /* Terminator */
+};
+
+static struct platform_device omap3_touchbook_lcd_device = {
+        .name           = "omap3touchbook_lcd",
+        .id             = -1,
+};
+
+static struct omap_lcd_config omap3_touchbook_lcd_config __initdata = {
+        .ctrl_name      = "internal",
+};
+
+static struct regulator_consumer_supply touchbook_vmmc1_supply = {
+        .supply                 = "vmmc",
+};
+
+static struct regulator_consumer_supply touchbook_vsim_supply = {
+        .supply                 = "vmmc_aux",
+};
+
+static struct gpio_led gpio_leds[];
+
+static int touchbook_twl_gpio_setup(struct device *dev,
+                unsigned gpio, unsigned ngpio)
+{
+        if (system_rev >= 0x20 && system_rev <= 0x34301000) {
+                omap_mux_init_gpio(23, OMAP_PIN_INPUT);
+                mmc[0].gpio_wp = 23;
+        } else {
+                omap_mux_init_gpio(29, OMAP_PIN_INPUT);
+        }
+        /* gpio + 0 is "mmc0_cd" (input/IRQ) */
+        mmc[0].gpio_cd = gpio + 0;
+        twl4030_mmc_init(mmc);
+
+        /* link regulators to MMC adapters */
+        touchbook_vmmc1_supply.dev = mmc[0].dev;
+        touchbook_vsim_supply.dev = mmc[0].dev;
+
+        /* REVISIT: need ehci-omap hooks for external VBUS
+         * power switch and overcurrent detect
+         */
+
+        gpio_request(gpio + 1, "EHCI_nOC");
+        gpio_direction_input(gpio + 1);
+
+        /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
+        gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
+        gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
+
+        /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
+        gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
+
+        return 0;
+}
+
+static struct twl4030_gpio_platform_data touchbook_gpio_data = {
+        .gpio_base      = OMAP_MAX_GPIO_LINES,
+        .irq_base       = TWL4030_GPIO_IRQ_BASE,
+        .irq_end        = TWL4030_GPIO_IRQ_END,
+        .use_leds       = true,
+        .pullups        = BIT(1),
+        .pulldowns      = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
+                                | BIT(15) | BIT(16) | BIT(17),
+        .setup          = touchbook_twl_gpio_setup,
+};
+
+static struct regulator_consumer_supply touchbook_vdac_supply = {
+        .supply         = "vdac",
+        .dev            = &omap3_touchbook_lcd_device.dev,
+};
+
+static struct regulator_consumer_supply touchbook_vdvi_supply = {
+        .supply         = "vdvi",
+        .dev            = &omap3_touchbook_lcd_device.dev,
+};
+
+/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
+static struct regulator_init_data touchbook_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      = &touchbook_vmmc1_supply,
+};
+
+/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
+static struct regulator_init_data touchbook_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      = &touchbook_vsim_supply,
+};
+
+/* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
+static struct regulator_init_data touchbook_vdac = {
+        .constraints = {
+                .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      = &touchbook_vdac_supply,
+};
+
+/* VPLL2 for digital video outputs */
+static struct regulator_init_data touchbook_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      = &touchbook_vdvi_supply,
+};
+
+static struct twl4030_usb_data touchbook_usb_data = {
+        .usb_mode       = T2_USB_MODE_ULPI,
+};
+
+static struct twl4030_codec_audio_data touchbook_audio_data = {
+        .audio_mclk = 26000000,
+};
+
+static struct twl4030_codec_data touchbook_codec_data = {
+        .audio_mclk = 26000000,
+        .audio = &touchbook_audio_data,
+};
+
+static struct twl4030_platform_data touchbook_twldata = {
+        .irq_base       = TWL4030_IRQ_BASE,
+        .irq_end        = TWL4030_IRQ_END,
+
+        /* platform_data for children goes here */
+        .usb            = &touchbook_usb_data,
+        .gpio           = &touchbook_gpio_data,
+        .codec          = &touchbook_codec_data,
+        .vmmc1          = &touchbook_vmmc1,
+        .vsim           = &touchbook_vsim,
+        .vdac           = &touchbook_vdac,
+        .vpll2          = &touchbook_vpll2,
+};
+
+static struct i2c_board_info __initdata touchbook_i2c_boardinfo[] = {
+        {
+                I2C_BOARD_INFO("twl4030", 0x48),
+                .flags = I2C_CLIENT_WAKE,
+                .irq = INT_34XX_SYS_NIRQ,
+                .platform_data = &touchbook_twldata,
+        },
+};
+
+static struct i2c_board_info __initdata touchBook_i2c_boardinfo[] = {
+        {
+                I2C_BOARD_INFO("bq27200", 0x55),
+        },
+};
+
+static int __init omap3_touchbook_i2c_init(void)
+{
+        /* Standard TouchBook bus */
+        omap_register_i2c_bus(1, 2600, touchbook_i2c_boardinfo,
+                        ARRAY_SIZE(touchbook_i2c_boardinfo));
+
+        /* Additional TouchBook bus */
+        omap_register_i2c_bus(3, 100, touchBook_i2c_boardinfo,
+                        ARRAY_SIZE(touchBook_i2c_boardinfo));
+
+        return 0;
+}
+
+static void __init omap3_ads7846_init(void)
+{
+        if (gpio_request(OMAP3_TS_GPIO, "ads7846_pen_down")) {
+                printk(KERN_ERR "Failed to request GPIO %d for "
+                                "ads7846 pen down IRQ\n", OMAP3_TS_GPIO);
+                return;
+        }
+
+        gpio_direction_input(OMAP3_TS_GPIO);
+        omap_set_gpio_debounce(OMAP3_TS_GPIO, 1);
+        omap_set_gpio_debounce_time(OMAP3_TS_GPIO, 0xa);
+}
+
+static struct ads7846_platform_data ads7846_config = {
+        .x_min                  = 100,
+        .y_min                  = 265,
+        .x_max                  = 3950,
+        .y_max                  = 3750,
+        .x_plate_ohms           = 40,
+        .pressure_max           = 255,
+        .debounce_max           = 10,
+        .debounce_tol           = 5,
+        .debounce_rep           = 1,
+        .gpio_pendown           = OMAP3_TS_GPIO,
+        .keep_vref_on           = 1,
+};
+
+static struct omap2_mcspi_device_config ads7846_mcspi_config = {
+        .turbo_mode     = 0,
+        .single_channel = 1,    /* 0: slave, 1: master */
+};
+
+static struct spi_board_info omap3_ads7846_spi_board_info[] __initdata = {
+        {
+                .modalias               = "ads7846",
+                .bus_num                = 4,
+                .chip_select            = 0,
+                .max_speed_hz           = 1500000,
+                .controller_data        = &ads7846_mcspi_config,
+                .irq                    = OMAP_GPIO_IRQ(OMAP3_TS_GPIO),
+                .platform_data          = &ads7846_config,
+        }
+};
+
+static struct gpio_led gpio_leds[] = {
+        {
+                .name                   = "touchbook::usr0",
+                .default_trigger        = "heartbeat",
+                .gpio                   = 150,
+        },
+        {
+                .name                   = "touchbook::usr1",
+                .default_trigger        = "mmc0",
+                .gpio                   = 149,
+        },
+        {
+                .name                   = "touchbook::pmu_stat",
+                .gpio                   = -EINVAL,      /* gets replaced */
+                .active_low             = true,
+        },
+};
+
+static struct gpio_led_platform_data gpio_led_info = {
+        .leds           = gpio_leds,
+        .num_leds       = ARRAY_SIZE(gpio_leds),
+};
+
+static struct platform_device leds_gpio = {
+        .name   = "leds-gpio",
+        .id     = -1,
+        .dev    = {
+                .platform_data  = &gpio_led_info,
+        },
+};
+
+static struct gpio_keys_button gpio_buttons[] = {
+        {
+                .code                   = BTN_EXTRA,
+                .gpio                   = 7,
+                .desc                   = "user",
+                .wakeup                 = 1,
+        },
+        {
+                .code                   = KEY_POWER,
+                .gpio                   = 183,
+                .desc                   = "power",
+                .wakeup                 = 1,
+        },
+};
+
+static struct gpio_keys_platform_data gpio_key_info = {
+        .buttons        = gpio_buttons,
+        .nbuttons       = ARRAY_SIZE(gpio_buttons),
+};
+
+static struct platform_device keys_gpio = {
+        .name   = "gpio-keys",
+        .id     = -1,
+        .dev    = {
+                .platform_data  = &gpio_key_info,
+        },
+};
+
+static struct omap_board_config_kernel omap3_touchbook_config[] __initdata = {
+        { OMAP_TAG_LCD,         &omap3_touchbook_lcd_config },
+};
+
+#ifdef CONFIG_OMAP_MUX
+static struct omap_board_mux board_mux[] __initdata = {
+        { .reg_offset = OMAP_MUX_TERMINATOR },
+};
+#else
+#define board_mux       NULL
+#endif
+
+static void __init omap3_touchbook_init_irq(void)
+{
+        omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
+        omap_board_config = omap3_touchbook_config;
+        omap_board_config_size = ARRAY_SIZE(omap3_touchbook_config);
+        omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
+                             mt46h32m32lf6_sdrc_params);
+        omap_init_irq();
+#ifdef CONFIG_OMAP_32K_TIMER
+        omap2_gp_clockevent_set_gptimer(12);
+#endif
+        omap_gpio_init();
+}
+
+static struct platform_device *omap3_touchbook_devices[] __initdata = {
+        &omap3_touchbook_lcd_device,
+        &leds_gpio,
+        &keys_gpio,
+};
+
+static void __init omap3touchbook_flash_init(void)
+{
+        u8 cs = 0;
+        u8 nandcs = GPMC_CS_NUM + 1;
+
+        u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
+
+        /* find out the chip-select on which NAND exists */
+        while (cs < GPMC_CS_NUM) {
+                u32 ret = 0;
+                ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
+
+                if ((ret & 0xC00) == 0x800) {
+                        printk(KERN_INFO "Found NAND on CS%d\n", cs);
+                        if (nandcs > GPMC_CS_NUM)
+                                nandcs = cs;
+                }
+                cs++;
+        }
+
+        if (nandcs > GPMC_CS_NUM) {
+                printk(KERN_INFO "NAND: Unable to find configuration "
+                                 "in GPMC\n ");
+                return;
+        }
+
+        if (nandcs < GPMC_CS_NUM) {
+                omap3touchbook_nand_data.cs = nandcs;
+                omap3touchbook_nand_data.gpmc_cs_baseaddr = (void *)
+                        (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
+                omap3touchbook_nand_data.gpmc_baseaddr =
+                                                (void *) (gpmc_base_add);
+
+                printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
+                if (platform_device_register(&omap3touchbook_nand_device) < 0)
+                        printk(KERN_ERR "Unable to register NAND device\n");
+        }
+}
+
+static struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
+
+        .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]  = 147,
+        .reset_gpio_port[2]  = -EINVAL
+};
+
+static void omap3_touchbook_poweroff(void)
+{
+        int r;
+
+        r = gpio_request(TB_KILL_POWER_GPIO, "DVI reset");
+        if (r < 0) {
+                printk(KERN_ERR "Unable to get kill power GPIO\n");
+                return;
+        }
+
+        gpio_direction_output(TB_KILL_POWER_GPIO, 0);
+}
+
+static void __init early_touchbook_revision(char **p)
+{
+        if (!*p)
+                return;
+
+        strict_strtoul(*p, 10, &touchbook_revision);
+}
+__early_param("tbr=", early_touchbook_revision);
+
+static void __init omap3_touchbook_init(void)
+{
+        pm_power_off = omap3_touchbook_poweroff;
+
+        omap3_touchbook_i2c_init();
+        platform_add_devices(omap3_touchbook_devices,
+                        ARRAY_SIZE(omap3_touchbook_devices));
+        omap_serial_init();
+
+        omap_mux_init_gpio(170, OMAP_PIN_INPUT);
+        gpio_request(176, "DVI_nPD");
+        /* REVISIT leave DVI powered down until it's needed ... */
+        gpio_direction_output(176, true);
+
+        /* Touchscreen and accelerometer */
+        spi_register_board_info(omap3_ads7846_spi_board_info,
+                                ARRAY_SIZE(omap3_ads7846_spi_board_info));
+        omap3_ads7846_init();
+        usb_musb_init();
+        usb_ehci_init(&ehci_pdata);
+        omap3touchbook_flash_init();
+
+        /* Ensure SDRC pins are mux'd for self-refresh */
+        omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
+        omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
+}
+
+static void __init omap3_touchbook_map_io(void)
+{
+        omap2_set_globals_343x();
+        omap2_map_common_io();
+}
+
+MACHINE_START(TOUCHBOOK, "OMAP3 touchbook Board")
+        /* Maintainer: Gregoire Gentil - http://www.alwaysinnovating.com */
+        .phys_io        = 0x48000000,
+        .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
+        .boot_params    = 0x80000100,
+        .map_io         = omap3_touchbook_map_io,
+        .init_irq       = omap3_touchbook_init_irq,
+        .init_machine   = omap3_touchbook_init,
+        .timer          = &omap_timer,
+MACHINE_END