arch/arm/mach-omap2/board-omap3evm.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-omap3evm.c
   3  *
   4  * Copyright (C) 2008 Texas Instruments
   5  *
   6  * Modified from mach-omap2/board-3430sdp.c
   7  *
   8  * Initial code: Syed Mohammed Khasim
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/delay.h>
  19 #include <linux/err.h>
  20 #include <linux/clk.h>
  21 #include <linux/input.h>
  22
  23 #include <linux/spi/spi.h>
  24 #include <linux/spi/ads7846.h>
  25 #include <linux/i2c/twl4030.h>
  26
  27 #include <mach/hardware.h>
  28 #include <asm/mach-types.h>
  29 #include <asm/mach/arch.h>
  30 #include <asm/mach/map.h>
  31
  32 #include <mach/gpio.h>
  33 #include <mach/keypad.h>
  34 #include <mach/board.h>
  35 #include <mach/hsmmc.h>
  36 #include <mach/usb-musb.h>
  37 #include <mach/usb-ehci.h>
  38 #include <mach/common.h>
  39 #include <mach/mcspi.h>
  40
  41 #include "sdram-micron-mt46h32m32lf-6.h"
  42 #include "twl4030-generic-scripts.h"
  43
  44 static struct resource omap3evm_smc911x_resources[] = {
  45         [0] =   {
  46                 .start  = OMAP3EVM_ETHR_START,
  47                 .end    = (OMAP3EVM_ETHR_START + OMAP3EVM_ETHR_SIZE - 1),
  48                 .flags  = IORESOURCE_MEM,
  49         },
  50         [1] =   {
  51                 .start  = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ),
  52                 .end    = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ),
  53                 .flags  = IORESOURCE_IRQ,
  54         },
  55 };
  56
  57 static struct platform_device omap3evm_smc911x_device = {
  58         .name           = "smc911x",
  59         .id             = -1,
  60         .num_resources  = ARRAY_SIZE(omap3evm_smc911x_resources),
  61         .resource       = &omap3evm_smc911x_resources [0],
  62 };
  63
  64 static inline void __init omap3evm_init_smc911x(void)
  65 {
  66         int eth_cs;
  67         struct clk *l3ck;
  68         unsigned int rate;
  69
  70         eth_cs = OMAP3EVM_SMC911X_CS;
  71
  72         l3ck = clk_get(NULL, "l3_ck");
  73         if (IS_ERR(l3ck))
  74                 rate = 100000000;
  75         else
  76                 rate = clk_get_rate(l3ck);
  77
  78         if (omap_request_gpio(OMAP3EVM_ETHR_GPIO_IRQ) < 0) {
  79                 printk(KERN_ERR "Failed to request GPIO%d for smc911x IRQ\n",
  80                         OMAP3EVM_ETHR_GPIO_IRQ);
  81                 return;
  82         }
  83
  84         omap_set_gpio_direction(OMAP3EVM_ETHR_GPIO_IRQ, 1);
  85 }
  86
  87 static struct omap_uart_config omap3_evm_uart_config __initdata = {
  88         .enabled_uarts  = ((1 << 0) | (1 << 1) | (1 << 2)),
  89 };
  90
  91 static struct twl4030_gpio_platform_data omap3evm_gpio_data = {
  92         .gpio_base      = OMAP_MAX_GPIO_LINES,
  93         .irq_base       = TWL4030_GPIO_IRQ_BASE,
  94         .irq_end        = TWL4030_GPIO_IRQ_END,
  95 };
  96
  97 static struct twl4030_usb_data omap3evm_usb_data = {
  98         .usb_mode       = T2_USB_MODE_ULPI,
  99 };
 100
 101 static int omap3evm_keymap[] = {
 102         KEY(0, 0, KEY_LEFT),
 103         KEY(0, 1, KEY_RIGHT),
 104         KEY(0, 2, KEY_A),
 105         KEY(0, 3, KEY_B),
 106         KEY(1, 0, KEY_DOWN),
 107         KEY(1, 1, KEY_UP),
 108         KEY(1, 2, KEY_E),
 109         KEY(1, 3, KEY_F),
 110         KEY(2, 0, KEY_ENTER),
 111         KEY(2, 1, KEY_I),
 112         KEY(2, 2, KEY_J),
 113         KEY(2, 3, KEY_K),
 114         KEY(3, 0, KEY_M),
 115         KEY(3, 1, KEY_N),
 116         KEY(3, 2, KEY_O),
 117         KEY(3, 3, KEY_P)
 118 };
 119
 120 static struct twl4030_keypad_data omap3evm_kp_data = {
 121         .rows           = 4,
 122         .cols           = 4,
 123         .keymap         = omap3evm_keymap,
 124         .keymapsize     = ARRAY_SIZE(omap3evm_keymap),
 125         .rep            = 1,
 126         .irq            = TWL4030_MODIRQ_KEYPAD,
 127 };
 128
 129 static struct twl4030_madc_platform_data omap3evm_madc_data = {
 130         .irq_line       = 1,
 131 };
 132
 133 static struct twl4030_platform_data omap3evm_twldata = {
 134         .irq_base       = TWL4030_IRQ_BASE,
 135         .irq_end        = TWL4030_IRQ_END,
 136
 137         /* platform_data for children goes here */
 138         .keypad         = &omap3evm_kp_data,
 139         .madc           = &omap3evm_madc_data,
 140         .usb            = &omap3evm_usb_data,
 141         .power          = &generic3430_t2scripts_data,
 142         .gpio           = &omap3evm_gpio_data,
 143 };
 144
 145 static struct i2c_board_info __initdata omap3evm_i2c_boardinfo[] = {
 146         {
 147                 I2C_BOARD_INFO("twl4030", 0x48),
 148                 .flags = I2C_CLIENT_WAKE,
 149                 .irq = INT_34XX_SYS_NIRQ,
 150                 .platform_data = &omap3evm_twldata,
 151         },
 152 };
 153
 154 static int __init omap3_evm_i2c_init(void)
 155 {
 156         omap_register_i2c_bus(1, 2600, omap3evm_i2c_boardinfo,
 157                         ARRAY_SIZE(omap3evm_i2c_boardinfo));
 158         omap_register_i2c_bus(2, 400, NULL, 0);
 159         omap_register_i2c_bus(3, 400, NULL, 0);
 160         return 0;
 161 }
 162
 163 static struct platform_device omap3_evm_lcd_device = {
 164         .name           = "omap3evm_lcd",
 165         .id             = -1,
 166 };
 167
 168 static struct omap_lcd_config omap3_evm_lcd_config __initdata = {
 169         .ctrl_name      = "internal",
 170 };
 171
 172 static void ads7846_dev_init(void)
 173 {
 174         if (omap_request_gpio(OMAP3_EVM_TS_GPIO) < 0)
 175                 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
 176
 177         omap_set_gpio_direction(OMAP3_EVM_TS_GPIO, 1);
 178
 179         omap_set_gpio_debounce(OMAP3_EVM_TS_GPIO, 1);
 180         omap_set_gpio_debounce_time(OMAP3_EVM_TS_GPIO, 0xa);
 181 }
 182
 183 static int ads7846_get_pendown_state(void)
 184 {
 185         return !omap_get_gpio_datain(OMAP3_EVM_TS_GPIO);
 186 }
 187
 188 struct ads7846_platform_data ads7846_config = {
 189         .x_max                  = 0x0fff,
 190         .y_max                  = 0x0fff,
 191         .x_plate_ohms           = 180,
 192         .pressure_max           = 255,
 193         .debounce_max           = 10,
 194         .debounce_tol           = 3,
 195         .debounce_rep           = 1,
 196         .get_pendown_state      = ads7846_get_pendown_state,
 197         .keep_vref_on           = 1,
 198         .settle_delay_usecs     = 150,
 199 };
 200
 201 static struct omap2_mcspi_device_config ads7846_mcspi_config = {
 202         .turbo_mode     = 0,
 203         .single_channel = 1,  /* 0: slave, 1: master */
 204 };
 205
 206 struct spi_board_info omap3evm_spi_board_info[] = {
 207         [0] = {
 208                 .modalias               = "ads7846",
 209                 .bus_num                = 1,
 210                 .chip_select            = 0,
 211                 .max_speed_hz           = 1500000,
 212                 .controller_data        = &ads7846_mcspi_config,
 213                 .irq                    = OMAP_GPIO_IRQ(OMAP3_EVM_TS_GPIO),
 214                 .platform_data          = &ads7846_config,
 215         },
 216 };
 217
 218 static void __init omap3_evm_init_irq(void)
 219 {
 220         omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
 221         omap_init_irq();
 222         omap_gpio_init();
 223         omap3evm_init_smc911x();
 224 }
 225
 226 static struct omap_board_config_kernel omap3_evm_config[] __initdata = {
 227         { OMAP_TAG_UART,        &omap3_evm_uart_config },
 228         { OMAP_TAG_LCD,         &omap3_evm_lcd_config },
 229 };
 230
 231 static struct platform_device *omap3_evm_devices[] __initdata = {
 232         &omap3_evm_lcd_device,
 233         &omap3evm_smc911x_device,
 234 };
 235
 236 static void __init omap3_evm_init(void)
 237 {
 238         omap3_evm_i2c_init();
 239
 240         platform_add_devices(omap3_evm_devices, ARRAY_SIZE(omap3_evm_devices));
 241         omap_board_config = omap3_evm_config;
 242         omap_board_config_size = ARRAY_SIZE(omap3_evm_config);
 243
 244         spi_register_board_info(omap3evm_spi_board_info,
 245                                 ARRAY_SIZE(omap3evm_spi_board_info));
 246
 247         omap_serial_init();
 248         hsmmc_init();
 249         usb_musb_init();
 250         usb_ehci_init();
 251         omap3evm_flash_init();
 252         ads7846_dev_init();
 253 }
 254
 255 static void __init omap3_evm_map_io(void)
 256 {
 257         omap2_set_globals_343x();
 258         omap2_map_common_io();
 259 }
 260
 261 MACHINE_START(OMAP3EVM, "OMAP3 EVM")
 262         /* Maintainer: Syed Mohammed Khasim - Texas Instruments */
 263         .phys_io        = 0x48000000,
 264         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 265         .boot_params    = 0x80000100,
 266         .map_io         = omap3_evm_map_io,
 267         .init_irq       = omap3_evm_init_irq,
 268         .init_machine   = omap3_evm_init,
 269         .timer          = &omap_timer,
 270 MACHINE_END