omap3: Board file of Always Innovating OMAP3-based Touch Book
Gregoire Gentil [Sat, 12 Dec 2009 00:16:34 +0000 (16:16 -0800)]
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>

arch/arm/mach-omap2/Kconfig
arch/arm/mach-omap2/Makefile
arch/arm/mach-omap2/board-omap3touchbook.c [new file with mode: 0644]

index 5a74e14..06dc64d 100644 (file)
@@ -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
index e30e335..b32678b 100644 (file)
@@ -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 (file)
index 0000000..c9e5ebb
--- /dev/null
@@ -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: GrĂ©goire 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