664 lines
16 KiB
C
664 lines
16 KiB
C
/*
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* linux/arch/arm/mach-omap2/board-omap3evm.c
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*
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* Copyright (C) 2008 Guangzhou EMA-Tech
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*
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* Modified from mach-omap2/board-omap3evm.c
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*
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* Initial code: Syed Mohammed Khasim
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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/regulator/machine.h>
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#include <linux/i2c/twl.h>
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#include <linux/mmc/host.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/display.h>
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#include <plat/panel-generic-dpi.h>
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#include <plat/mcspi.h>
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#include <linux/input/matrix_keypad.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/interrupt.h>
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#include <linux/smsc911x.h>
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#include <linux/i2c/at24.h>
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#include "sdram-micron-mt46h32m32lf-6.h"
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#include "mux.h"
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#include "hsmmc.h"
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#include "timer-gp.h"
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#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
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#define OMAP3STALKER_ETHR_START 0x2c000000
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#define OMAP3STALKER_ETHR_SIZE 1024
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#define OMAP3STALKER_ETHR_GPIO_IRQ 19
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#define OMAP3STALKER_SMC911X_CS 5
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static struct resource omap3stalker_smsc911x_resources[] = {
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[0] = {
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.start = OMAP3STALKER_ETHR_START,
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.end =
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(OMAP3STALKER_ETHR_START + OMAP3STALKER_ETHR_SIZE - 1),
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = OMAP_GPIO_IRQ(OMAP3STALKER_ETHR_GPIO_IRQ),
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.end = OMAP_GPIO_IRQ(OMAP3STALKER_ETHR_GPIO_IRQ),
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.flags = (IORESOURCE_IRQ | IRQF_TRIGGER_LOW),
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},
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};
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static struct smsc911x_platform_config smsc911x_config = {
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.phy_interface = PHY_INTERFACE_MODE_MII,
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.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
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.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
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.flags = (SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS),
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};
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static struct platform_device omap3stalker_smsc911x_device = {
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.name = "smsc911x",
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.id = -1,
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.num_resources = ARRAY_SIZE(omap3stalker_smsc911x_resources),
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.resource = &omap3stalker_smsc911x_resources[0],
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.dev = {
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.platform_data = &smsc911x_config,
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},
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};
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static inline void __init omap3stalker_init_eth(void)
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{
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int eth_cs;
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struct clk *l3ck;
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unsigned int rate;
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eth_cs = OMAP3STALKER_SMC911X_CS;
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l3ck = clk_get(NULL, "l3_ck");
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if (IS_ERR(l3ck))
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rate = 100000000;
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else
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rate = clk_get_rate(l3ck);
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omap_mux_init_gpio(19, OMAP_PIN_INPUT_PULLUP);
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if (gpio_request(OMAP3STALKER_ETHR_GPIO_IRQ, "SMC911x irq") < 0) {
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printk(KERN_ERR
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"Failed to request GPIO%d for smc911x IRQ\n",
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OMAP3STALKER_ETHR_GPIO_IRQ);
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return;
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}
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gpio_direction_input(OMAP3STALKER_ETHR_GPIO_IRQ);
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platform_device_register(&omap3stalker_smsc911x_device);
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}
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#else
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static inline void __init omap3stalker_init_eth(void)
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{
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return;
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}
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#endif
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/*
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* OMAP3 DSS control signals
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*/
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#define DSS_ENABLE_GPIO 199
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#define LCD_PANEL_BKLIGHT_GPIO 210
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#define ENABLE_VPLL2_DEV_GRP 0xE0
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static int lcd_enabled;
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static int dvi_enabled;
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static void __init omap3_stalker_display_init(void)
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{
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return;
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}
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static int omap3_stalker_enable_lcd(struct omap_dss_device *dssdev)
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{
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if (dvi_enabled) {
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printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
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return -EINVAL;
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}
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gpio_set_value(DSS_ENABLE_GPIO, 1);
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gpio_set_value(LCD_PANEL_BKLIGHT_GPIO, 1);
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lcd_enabled = 1;
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return 0;
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}
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static void omap3_stalker_disable_lcd(struct omap_dss_device *dssdev)
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{
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gpio_set_value(DSS_ENABLE_GPIO, 0);
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gpio_set_value(LCD_PANEL_BKLIGHT_GPIO, 0);
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lcd_enabled = 0;
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}
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static struct panel_generic_dpi_data lcd_panel = {
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.name = "generic",
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.platform_enable = omap3_stalker_enable_lcd,
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.platform_disable = omap3_stalker_disable_lcd,
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};
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static struct omap_dss_device omap3_stalker_lcd_device = {
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.name = "lcd",
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.driver_name = "generic_dpi_panel",
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.data = &lcd_panel,
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.phy.dpi.data_lines = 24,
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.type = OMAP_DISPLAY_TYPE_DPI,
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};
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static int omap3_stalker_enable_tv(struct omap_dss_device *dssdev)
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{
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return 0;
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}
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static void omap3_stalker_disable_tv(struct omap_dss_device *dssdev)
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{
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}
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static struct omap_dss_device omap3_stalker_tv_device = {
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.name = "tv",
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.driver_name = "venc",
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.type = OMAP_DISPLAY_TYPE_VENC,
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#if defined(CONFIG_OMAP2_VENC_OUT_TYPE_SVIDEO)
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.phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
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#elif defined(CONFIG_OMAP2_VENC_OUT_TYPE_COMPOSITE)
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.u.venc.type = OMAP_DSS_VENC_TYPE_COMPOSITE,
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#endif
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.platform_enable = omap3_stalker_enable_tv,
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.platform_disable = omap3_stalker_disable_tv,
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};
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static int omap3_stalker_enable_dvi(struct omap_dss_device *dssdev)
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{
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if (lcd_enabled) {
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printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
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return -EINVAL;
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}
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gpio_set_value(DSS_ENABLE_GPIO, 1);
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dvi_enabled = 1;
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return 0;
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}
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static void omap3_stalker_disable_dvi(struct omap_dss_device *dssdev)
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{
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gpio_set_value(DSS_ENABLE_GPIO, 0);
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dvi_enabled = 0;
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}
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static struct panel_generic_dpi_data dvi_panel = {
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.name = "generic",
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.platform_enable = omap3_stalker_enable_dvi,
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.platform_disable = omap3_stalker_disable_dvi,
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};
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static struct omap_dss_device omap3_stalker_dvi_device = {
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.name = "dvi",
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.type = OMAP_DISPLAY_TYPE_DPI,
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.driver_name = "generic_dpi_panel",
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.data = &dvi_panel,
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.phy.dpi.data_lines = 24,
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};
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static struct omap_dss_device *omap3_stalker_dss_devices[] = {
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&omap3_stalker_lcd_device,
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&omap3_stalker_tv_device,
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&omap3_stalker_dvi_device,
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};
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static struct omap_dss_board_info omap3_stalker_dss_data = {
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.num_devices = ARRAY_SIZE(omap3_stalker_dss_devices),
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.devices = omap3_stalker_dss_devices,
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.default_device = &omap3_stalker_dvi_device,
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};
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static struct regulator_consumer_supply omap3stalker_vmmc1_supply = {
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.supply = "vmmc",
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};
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static struct regulator_consumer_supply omap3stalker_vsim_supply = {
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.supply = "vmmc_aux",
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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 omap3stalker_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 | REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = 1,
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.consumer_supplies = &omap3stalker_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 omap3stalker_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 | REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = 1,
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.consumer_supplies = &omap3stalker_vsim_supply,
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};
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static struct omap2_hsmmc_info mmc[] = {
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{
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.mmc = 1,
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.caps = MMC_CAP_4_BIT_DATA,
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.gpio_cd = -EINVAL,
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.gpio_wp = 23,
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},
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{} /* Terminator */
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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 = 18,
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.desc = "user",
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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 gpio_led gpio_leds[] = {
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{
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.name = "stalker:D8:usr0",
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.default_trigger = "default-on",
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.gpio = 126,
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},
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{
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.name = "stalker:D9:usr1",
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.default_trigger = "default-on",
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.gpio = 127,
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},
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{
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.name = "stalker:D3:mmc0",
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.gpio = -EINVAL, /* gets replaced */
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.active_low = true,
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.default_trigger = "mmc0",
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},
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{
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.name = "stalker:D4:heartbeat",
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.gpio = -EINVAL, /* gets replaced */
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.active_low = true,
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.default_trigger = "heartbeat",
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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 int
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omap3stalker_twl_gpio_setup(struct device *dev,
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unsigned gpio, unsigned ngpio)
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{
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/* gpio + 0 is "mmc0_cd" (input/IRQ) */
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omap_mux_init_gpio(23, OMAP_PIN_INPUT);
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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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omap3stalker_vmmc1_supply.dev = mmc[0].dev;
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omap3stalker_vsim_supply.dev = mmc[0].dev;
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/*
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* Most GPIOs are for USB OTG. Some are mostly sent to
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* the P2 connector; notably LEDA for the LCD backlight.
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*/
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/* TWL4030_GPIO_MAX + 0 == ledA, LCD Backlight control */
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gpio_request(gpio + TWL4030_GPIO_MAX, "EN_LCD_BKL");
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gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
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/* gpio + 7 == DVI Enable */
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gpio_request(gpio + 7, "EN_DVI");
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gpio_direction_output(gpio + 7, 0);
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/* TWL4030_GPIO_MAX + 1 == ledB (out, mmc0) */
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gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
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/* GPIO + 13 == ledsync (out, heartbeat) */
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gpio_leds[3].gpio = gpio + 13;
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platform_device_register(&leds_gpio);
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return 0;
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}
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static struct twl4030_gpio_platform_data omap3stalker_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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.setup = omap3stalker_twl_gpio_setup,
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};
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static struct twl4030_usb_data omap3stalker_usb_data = {
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.usb_mode = T2_USB_MODE_ULPI,
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};
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static uint32_t board_keymap[] = {
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KEY(0, 0, KEY_LEFT),
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KEY(0, 1, KEY_DOWN),
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KEY(0, 2, KEY_ENTER),
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KEY(0, 3, KEY_M),
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KEY(1, 0, KEY_RIGHT),
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KEY(1, 1, KEY_UP),
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KEY(1, 2, KEY_I),
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KEY(1, 3, KEY_N),
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KEY(2, 0, KEY_A),
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KEY(2, 1, KEY_E),
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KEY(2, 2, KEY_J),
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KEY(2, 3, KEY_O),
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KEY(3, 0, KEY_B),
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KEY(3, 1, KEY_F),
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KEY(3, 2, KEY_K),
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KEY(3, 3, KEY_P)
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};
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static struct matrix_keymap_data board_map_data = {
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.keymap = board_keymap,
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.keymap_size = ARRAY_SIZE(board_keymap),
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};
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static struct twl4030_keypad_data omap3stalker_kp_data = {
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.keymap_data = &board_map_data,
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.rows = 4,
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.cols = 4,
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.rep = 1,
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};
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static struct twl4030_madc_platform_data omap3stalker_madc_data = {
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.irq_line = 1,
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};
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static struct twl4030_codec_audio_data omap3stalker_audio_data;
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static struct twl4030_codec_data omap3stalker_codec_data = {
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.audio_mclk = 26000000,
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.audio = &omap3stalker_audio_data,
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};
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static struct regulator_consumer_supply omap3_stalker_vdda_dac_supply =
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REGULATOR_SUPPLY("vdda_dac", "omapdss");
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/* VDAC for DSS driving S-Video */
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static struct regulator_init_data omap3_stalker_vdac = {
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.constraints = {
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.min_uV = 1800000,
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.max_uV = 1800000,
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.apply_uV = true,
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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 = &omap3_stalker_vdda_dac_supply,
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};
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/* VPLL2 for digital video outputs */
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static struct regulator_consumer_supply omap3_stalker_vpll2_supply =
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REGULATOR_SUPPLY("vdds_dsi", "omapdss");
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static struct regulator_init_data omap3_stalker_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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.apply_uV = true,
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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 = &omap3_stalker_vpll2_supply,
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};
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static struct twl4030_platform_data omap3stalker_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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.keypad = &omap3stalker_kp_data,
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.madc = &omap3stalker_madc_data,
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.usb = &omap3stalker_usb_data,
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.gpio = &omap3stalker_gpio_data,
|
|
.codec = &omap3stalker_codec_data,
|
|
.vdac = &omap3_stalker_vdac,
|
|
.vpll2 = &omap3_stalker_vpll2,
|
|
};
|
|
|
|
static struct i2c_board_info __initdata omap3stalker_i2c_boardinfo[] = {
|
|
{
|
|
I2C_BOARD_INFO("twl4030", 0x48),
|
|
.flags = I2C_CLIENT_WAKE,
|
|
.irq = INT_34XX_SYS_NIRQ,
|
|
.platform_data = &omap3stalker_twldata,
|
|
},
|
|
};
|
|
|
|
static struct at24_platform_data fram_info = {
|
|
.byte_len = (64 * 1024) / 8,
|
|
.page_size = 8192,
|
|
.flags = AT24_FLAG_ADDR16 | AT24_FLAG_IRUGO,
|
|
};
|
|
|
|
static struct i2c_board_info __initdata omap3stalker_i2c_boardinfo3[] = {
|
|
{
|
|
I2C_BOARD_INFO("24c64", 0x50),
|
|
.flags = I2C_CLIENT_WAKE,
|
|
.platform_data = &fram_info,
|
|
},
|
|
};
|
|
|
|
static int __init omap3_stalker_i2c_init(void)
|
|
{
|
|
/*
|
|
* REVISIT: These entries can be set in omap3evm_twl_data
|
|
* after a merge with MFD tree
|
|
*/
|
|
omap3stalker_twldata.vmmc1 = &omap3stalker_vmmc1;
|
|
omap3stalker_twldata.vsim = &omap3stalker_vsim;
|
|
|
|
omap_register_i2c_bus(1, 2600, omap3stalker_i2c_boardinfo,
|
|
ARRAY_SIZE(omap3stalker_i2c_boardinfo));
|
|
omap_register_i2c_bus(2, 400, NULL, 0);
|
|
omap_register_i2c_bus(3, 400, omap3stalker_i2c_boardinfo3,
|
|
ARRAY_SIZE(omap3stalker_i2c_boardinfo3));
|
|
return 0;
|
|
}
|
|
|
|
#define OMAP3_STALKER_TS_GPIO 175
|
|
static void ads7846_dev_init(void)
|
|
{
|
|
if (gpio_request(OMAP3_STALKER_TS_GPIO, "ADS7846 pendown") < 0)
|
|
printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
|
|
|
|
gpio_direction_input(OMAP3_STALKER_TS_GPIO);
|
|
gpio_set_debounce(OMAP3_STALKER_TS_GPIO, 310);
|
|
}
|
|
|
|
static int ads7846_get_pendown_state(void)
|
|
{
|
|
return !gpio_get_value(OMAP3_STALKER_TS_GPIO);
|
|
}
|
|
|
|
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,
|
|
.settle_delay_usecs = 150,
|
|
};
|
|
|
|
static struct omap2_mcspi_device_config ads7846_mcspi_config = {
|
|
.turbo_mode = 0,
|
|
.single_channel = 1, /* 0: slave, 1: master */
|
|
};
|
|
|
|
static struct spi_board_info omap3stalker_spi_board_info[] = {
|
|
[0] = {
|
|
.modalias = "ads7846",
|
|
.bus_num = 1,
|
|
.chip_select = 0,
|
|
.max_speed_hz = 1500000,
|
|
.controller_data = &ads7846_mcspi_config,
|
|
.irq = OMAP_GPIO_IRQ(OMAP3_STALKER_TS_GPIO),
|
|
.platform_data = &ads7846_config,
|
|
},
|
|
};
|
|
|
|
static struct omap_board_config_kernel omap3_stalker_config[] __initdata = {
|
|
};
|
|
|
|
static void __init omap3_stalker_init_early(void)
|
|
{
|
|
omap2_init_common_infrastructure();
|
|
omap2_init_common_devices(mt46h32m32lf6_sdrc_params, NULL);
|
|
}
|
|
|
|
static void __init omap3_stalker_init_irq(void)
|
|
{
|
|
omap_init_irq();
|
|
#ifdef CONFIG_OMAP_32K_TIMER
|
|
omap2_gp_clockevent_set_gptimer(12);
|
|
#endif
|
|
}
|
|
|
|
static struct platform_device *omap3_stalker_devices[] __initdata = {
|
|
&keys_gpio,
|
|
};
|
|
|
|
static struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
|
|
.port_mode[0] = EHCI_HCD_OMAP_MODE_UNKNOWN,
|
|
.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] = 21,
|
|
.reset_gpio_port[2] = -EINVAL,
|
|
};
|
|
|
|
#ifdef CONFIG_OMAP_MUX
|
|
static struct omap_board_mux board_mux[] __initdata = {
|
|
OMAP3_MUX(SYS_NIRQ, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP |
|
|
OMAP_PIN_OFF_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE),
|
|
OMAP3_MUX(MCSPI1_CS1, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLUP |
|
|
OMAP_PIN_OFF_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE),
|
|
{.reg_offset = OMAP_MUX_TERMINATOR},
|
|
};
|
|
#endif
|
|
|
|
static struct omap_musb_board_data musb_board_data = {
|
|
.interface_type = MUSB_INTERFACE_ULPI,
|
|
.mode = MUSB_OTG,
|
|
.power = 100,
|
|
};
|
|
|
|
static void __init omap3_stalker_init(void)
|
|
{
|
|
omap3_mux_init(board_mux, OMAP_PACKAGE_CUS);
|
|
omap_board_config = omap3_stalker_config;
|
|
omap_board_config_size = ARRAY_SIZE(omap3_stalker_config);
|
|
|
|
omap3_stalker_i2c_init();
|
|
|
|
platform_add_devices(omap3_stalker_devices,
|
|
ARRAY_SIZE(omap3_stalker_devices));
|
|
|
|
omap_display_init(&omap3_stalker_dss_data);
|
|
spi_register_board_info(omap3stalker_spi_board_info,
|
|
ARRAY_SIZE(omap3stalker_spi_board_info));
|
|
|
|
omap_serial_init();
|
|
usb_musb_init(&musb_board_data);
|
|
usb_ehci_init(&ehci_pdata);
|
|
ads7846_dev_init();
|
|
|
|
omap_mux_init_gpio(21, OMAP_PIN_OUTPUT);
|
|
omap_mux_init_gpio(18, OMAP_PIN_INPUT_PULLUP);
|
|
|
|
omap3stalker_init_eth();
|
|
omap3_stalker_display_init();
|
|
/* Ensure SDRC pins are mux'd for self-refresh */
|
|
omap_mux_init_signal("sdr_cke0", OMAP_PIN_OUTPUT);
|
|
omap_mux_init_signal("sdr_cke1", OMAP_PIN_OUTPUT);
|
|
}
|
|
|
|
MACHINE_START(SBC3530, "OMAP3 STALKER")
|
|
/* Maintainer: Jason Lam -lzg@ema-tech.com */
|
|
.boot_params = 0x80000100,
|
|
.map_io = omap3_map_io,
|
|
.init_early = omap3_stalker_init_early,
|
|
.init_irq = omap3_stalker_init_irq,
|
|
.init_machine = omap3_stalker_init,
|
|
.timer = &omap_timer,
|
|
MACHINE_END
|