578 строки
14 KiB
C
578 строки
14 KiB
C
/*
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* linux/arch/arm/mach-omap2/board-omap3touchbook.c
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*
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* Copyright (C) 2009 Always Innovating
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*
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* Modified from mach-omap2/board-omap3beagleboard.c
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*
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* Initial code: Grégoire Gentil, Tim Yamin
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/clk.h>
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#include <linux/io.h>
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#include <linux/leds.h>
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#include <linux/gpio.h>
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#include <linux/input.h>
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#include <linux/gpio_keys.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/nand.h>
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#include <plat/mcspi.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/ads7846.h>
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#include <linux/regulator/machine.h>
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#include <linux/i2c/twl.h>
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#include <mach/hardware.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/flash.h>
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#include <plat/board.h>
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#include <plat/common.h>
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#include <plat/gpmc.h>
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#include <plat/nand.h>
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#include <plat/usb.h>
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#include <plat/timer-gp.h>
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#include "mux.h"
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#include "hsmmc.h"
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#include <asm/setup.h>
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#define GPMC_CS0_BASE 0x60
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#define GPMC_CS_SIZE 0x30
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#define NAND_BLOCK_SIZE SZ_128K
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#define OMAP3_AC_GPIO 136
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#define OMAP3_TS_GPIO 162
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#define TB_BL_PWM_TIMER 9
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#define TB_KILL_POWER_GPIO 168
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unsigned long touchbook_revision;
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static struct mtd_partition omap3touchbook_nand_partitions[] = {
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/* All the partition sizes are listed in terms of NAND block size */
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{
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.name = "X-Loader",
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.offset = 0,
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.size = 4 * NAND_BLOCK_SIZE,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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},
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{
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.name = "U-Boot",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
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.size = 15 * NAND_BLOCK_SIZE,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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},
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{
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.name = "U-Boot Env",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
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.size = 1 * NAND_BLOCK_SIZE,
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},
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{
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.name = "Kernel",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
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.size = 32 * NAND_BLOCK_SIZE,
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},
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{
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.name = "File System",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct omap_nand_platform_data omap3touchbook_nand_data = {
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.options = NAND_BUSWIDTH_16,
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.parts = omap3touchbook_nand_partitions,
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.nr_parts = ARRAY_SIZE(omap3touchbook_nand_partitions),
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.dma_channel = -1, /* disable DMA in OMAP NAND driver */
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.nand_setup = NULL,
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.dev_ready = NULL,
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};
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static struct resource omap3touchbook_nand_resource = {
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device omap3touchbook_nand_device = {
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.name = "omap2-nand",
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.id = -1,
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.dev = {
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.platform_data = &omap3touchbook_nand_data,
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},
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.num_resources = 1,
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.resource = &omap3touchbook_nand_resource,
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};
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#include "sdram-micron-mt46h32m32lf-6.h"
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static struct omap2_hsmmc_info mmc[] = {
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{
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.mmc = 1,
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.wires = 8,
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.gpio_wp = 29,
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},
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{} /* Terminator */
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};
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static struct platform_device omap3_touchbook_lcd_device = {
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.name = "omap3touchbook_lcd",
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.id = -1,
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};
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static struct omap_lcd_config omap3_touchbook_lcd_config __initdata = {
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.ctrl_name = "internal",
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};
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static struct regulator_consumer_supply touchbook_vmmc1_supply = {
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.supply = "vmmc",
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};
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static struct regulator_consumer_supply touchbook_vsim_supply = {
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.supply = "vmmc_aux",
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};
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static struct gpio_led gpio_leds[];
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static int touchbook_twl_gpio_setup(struct device *dev,
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unsigned gpio, unsigned ngpio)
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{
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if (system_rev >= 0x20 && system_rev <= 0x34301000) {
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omap_mux_init_gpio(23, OMAP_PIN_INPUT);
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mmc[0].gpio_wp = 23;
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} else {
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omap_mux_init_gpio(29, OMAP_PIN_INPUT);
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}
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/* gpio + 0 is "mmc0_cd" (input/IRQ) */
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mmc[0].gpio_cd = gpio + 0;
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omap2_hsmmc_init(mmc);
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/* link regulators to MMC adapters */
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touchbook_vmmc1_supply.dev = mmc[0].dev;
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touchbook_vsim_supply.dev = mmc[0].dev;
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/* REVISIT: need ehci-omap hooks for external VBUS
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* power switch and overcurrent detect
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*/
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gpio_request(gpio + 1, "EHCI_nOC");
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gpio_direction_input(gpio + 1);
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/* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
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gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
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gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
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/* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
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gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
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return 0;
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}
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static struct twl4030_gpio_platform_data touchbook_gpio_data = {
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.gpio_base = OMAP_MAX_GPIO_LINES,
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.irq_base = TWL4030_GPIO_IRQ_BASE,
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.irq_end = TWL4030_GPIO_IRQ_END,
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.use_leds = true,
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.pullups = BIT(1),
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.pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
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| BIT(15) | BIT(16) | BIT(17),
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.setup = touchbook_twl_gpio_setup,
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};
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static struct regulator_consumer_supply touchbook_vdac_supply = {
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.supply = "vdac",
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.dev = &omap3_touchbook_lcd_device.dev,
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};
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static struct regulator_consumer_supply touchbook_vdvi_supply = {
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.supply = "vdvi",
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.dev = &omap3_touchbook_lcd_device.dev,
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};
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/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
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static struct regulator_init_data touchbook_vmmc1 = {
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.constraints = {
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.min_uV = 1850000,
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.max_uV = 3150000,
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.valid_modes_mask = REGULATOR_MODE_NORMAL
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| REGULATOR_MODE_STANDBY,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_MODE
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| REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = 1,
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.consumer_supplies = &touchbook_vmmc1_supply,
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};
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/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
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static struct regulator_init_data touchbook_vsim = {
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.constraints = {
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.min_uV = 1800000,
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.max_uV = 3000000,
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.valid_modes_mask = REGULATOR_MODE_NORMAL
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| REGULATOR_MODE_STANDBY,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_MODE
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| REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = 1,
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.consumer_supplies = &touchbook_vsim_supply,
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};
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/* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
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static struct regulator_init_data touchbook_vdac = {
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.constraints = {
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.min_uV = 1800000,
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.max_uV = 1800000,
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.valid_modes_mask = REGULATOR_MODE_NORMAL
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| REGULATOR_MODE_STANDBY,
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.valid_ops_mask = REGULATOR_CHANGE_MODE
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| REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = 1,
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.consumer_supplies = &touchbook_vdac_supply,
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};
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/* VPLL2 for digital video outputs */
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static struct regulator_init_data touchbook_vpll2 = {
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.constraints = {
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.name = "VDVI",
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.min_uV = 1800000,
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.max_uV = 1800000,
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.valid_modes_mask = REGULATOR_MODE_NORMAL
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| REGULATOR_MODE_STANDBY,
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.valid_ops_mask = REGULATOR_CHANGE_MODE
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| REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = 1,
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.consumer_supplies = &touchbook_vdvi_supply,
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};
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static struct twl4030_usb_data touchbook_usb_data = {
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.usb_mode = T2_USB_MODE_ULPI,
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};
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static struct twl4030_codec_audio_data touchbook_audio_data = {
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.audio_mclk = 26000000,
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};
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static struct twl4030_codec_data touchbook_codec_data = {
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.audio_mclk = 26000000,
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.audio = &touchbook_audio_data,
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};
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static struct twl4030_platform_data touchbook_twldata = {
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.irq_base = TWL4030_IRQ_BASE,
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.irq_end = TWL4030_IRQ_END,
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/* platform_data for children goes here */
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.usb = &touchbook_usb_data,
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.gpio = &touchbook_gpio_data,
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.codec = &touchbook_codec_data,
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.vmmc1 = &touchbook_vmmc1,
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.vsim = &touchbook_vsim,
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.vdac = &touchbook_vdac,
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.vpll2 = &touchbook_vpll2,
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};
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static struct i2c_board_info __initdata touchbook_i2c_boardinfo[] = {
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{
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I2C_BOARD_INFO("twl4030", 0x48),
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.flags = I2C_CLIENT_WAKE,
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.irq = INT_34XX_SYS_NIRQ,
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.platform_data = &touchbook_twldata,
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},
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};
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static struct i2c_board_info __initdata touchBook_i2c_boardinfo[] = {
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{
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I2C_BOARD_INFO("bq27200", 0x55),
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},
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};
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static int __init omap3_touchbook_i2c_init(void)
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{
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/* Standard TouchBook bus */
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omap_register_i2c_bus(1, 2600, touchbook_i2c_boardinfo,
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ARRAY_SIZE(touchbook_i2c_boardinfo));
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/* Additional TouchBook bus */
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omap_register_i2c_bus(3, 100, touchBook_i2c_boardinfo,
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ARRAY_SIZE(touchBook_i2c_boardinfo));
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return 0;
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}
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static void __init omap3_ads7846_init(void)
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{
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if (gpio_request(OMAP3_TS_GPIO, "ads7846_pen_down")) {
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printk(KERN_ERR "Failed to request GPIO %d for "
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"ads7846 pen down IRQ\n", OMAP3_TS_GPIO);
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return;
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}
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gpio_direction_input(OMAP3_TS_GPIO);
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gpio_set_debounce(OMAP3_TS_GPIO, 310);
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}
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static struct ads7846_platform_data ads7846_config = {
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.x_min = 100,
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.y_min = 265,
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.x_max = 3950,
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.y_max = 3750,
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.x_plate_ohms = 40,
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.pressure_max = 255,
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.debounce_max = 10,
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.debounce_tol = 5,
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.debounce_rep = 1,
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.gpio_pendown = OMAP3_TS_GPIO,
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.keep_vref_on = 1,
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};
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static struct omap2_mcspi_device_config ads7846_mcspi_config = {
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.turbo_mode = 0,
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.single_channel = 1, /* 0: slave, 1: master */
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};
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static struct spi_board_info omap3_ads7846_spi_board_info[] __initdata = {
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{
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.modalias = "ads7846",
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.bus_num = 4,
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.chip_select = 0,
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.max_speed_hz = 1500000,
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.controller_data = &ads7846_mcspi_config,
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.irq = OMAP_GPIO_IRQ(OMAP3_TS_GPIO),
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.platform_data = &ads7846_config,
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}
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};
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static struct gpio_led gpio_leds[] = {
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{
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.name = "touchbook::usr0",
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.default_trigger = "heartbeat",
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.gpio = 150,
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},
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{
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.name = "touchbook::usr1",
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.default_trigger = "mmc0",
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.gpio = 149,
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},
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{
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.name = "touchbook::pmu_stat",
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.gpio = -EINVAL, /* gets replaced */
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.active_low = true,
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},
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};
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static struct gpio_led_platform_data gpio_led_info = {
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.leds = gpio_leds,
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.num_leds = ARRAY_SIZE(gpio_leds),
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};
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static struct platform_device leds_gpio = {
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.name = "leds-gpio",
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.id = -1,
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.dev = {
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.platform_data = &gpio_led_info,
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},
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};
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static struct gpio_keys_button gpio_buttons[] = {
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{
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.code = BTN_EXTRA,
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.gpio = 7,
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.desc = "user",
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.wakeup = 1,
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},
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{
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.code = KEY_POWER,
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.gpio = 183,
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.desc = "power",
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.wakeup = 1,
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},
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};
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static struct gpio_keys_platform_data gpio_key_info = {
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.buttons = gpio_buttons,
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.nbuttons = ARRAY_SIZE(gpio_buttons),
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};
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static struct platform_device keys_gpio = {
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.name = "gpio-keys",
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.id = -1,
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.dev = {
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.platform_data = &gpio_key_info,
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},
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};
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static struct omap_board_config_kernel omap3_touchbook_config[] __initdata = {
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{ OMAP_TAG_LCD, &omap3_touchbook_lcd_config },
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};
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#ifdef CONFIG_OMAP_MUX
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static struct omap_board_mux board_mux[] __initdata = {
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{ .reg_offset = OMAP_MUX_TERMINATOR },
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};
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#else
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#define board_mux NULL
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#endif
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static void __init omap3_touchbook_init_irq(void)
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{
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omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
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omap_board_config = omap3_touchbook_config;
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omap_board_config_size = ARRAY_SIZE(omap3_touchbook_config);
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omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
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mt46h32m32lf6_sdrc_params);
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omap_init_irq();
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#ifdef CONFIG_OMAP_32K_TIMER
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omap2_gp_clockevent_set_gptimer(12);
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#endif
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omap_gpio_init();
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}
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static struct platform_device *omap3_touchbook_devices[] __initdata = {
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&omap3_touchbook_lcd_device,
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&leds_gpio,
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&keys_gpio,
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};
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static void __init omap3touchbook_flash_init(void)
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{
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u8 cs = 0;
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u8 nandcs = GPMC_CS_NUM + 1;
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u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
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/* find out the chip-select on which NAND exists */
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while (cs < GPMC_CS_NUM) {
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u32 ret = 0;
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ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
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if ((ret & 0xC00) == 0x800) {
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printk(KERN_INFO "Found NAND on CS%d\n", cs);
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if (nandcs > GPMC_CS_NUM)
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nandcs = cs;
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}
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cs++;
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}
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if (nandcs > GPMC_CS_NUM) {
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printk(KERN_INFO "NAND: Unable to find configuration "
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"in GPMC\n ");
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return;
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}
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if (nandcs < GPMC_CS_NUM) {
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omap3touchbook_nand_data.cs = nandcs;
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omap3touchbook_nand_data.gpmc_cs_baseaddr = (void *)
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(gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
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omap3touchbook_nand_data.gpmc_baseaddr =
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(void *) (gpmc_base_add);
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printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
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if (platform_device_register(&omap3touchbook_nand_device) < 0)
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printk(KERN_ERR "Unable to register NAND device\n");
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}
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}
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static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
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.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 int __init early_touchbook_revision(char *p)
|
|
{
|
|
if (!p)
|
|
return 0;
|
|
|
|
return strict_strtoul(p, 10, &touchbook_revision);
|
|
}
|
|
early_param("tbr", early_touchbook_revision);
|
|
|
|
static struct omap_musb_board_data musb_board_data = {
|
|
.interface_type = MUSB_INTERFACE_ULPI,
|
|
.mode = MUSB_OTG,
|
|
.power = 100,
|
|
};
|
|
|
|
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(&musb_board_data);
|
|
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();
|
|
omap34xx_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
|