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   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/gpio.h>
  22 #include <linux/input.h>
  23 #include <linux/leds.h>
  24
  25 #include <linux/spi/spi.h>
  26 #include <linux/spi/ads7846.h>
  27 #include <linux/i2c/twl4030.h>
  28 #include <linux/usb/otg.h>
  29
  30 #include <mach/hardware.h>
  31 #include <asm/mach-types.h>
  32 #include <asm/mach/arch.h>
  33 #include <asm/mach/map.h>
  34
  35 #include <mach/board.h>
  36 #include <mach/mux.h>
  37 #include <mach/usb.h>
  38 #include <mach/common.h>
  39 #include <mach/mcspi.h>
  40 #include <mach/keypad.h>
  41
  42 #include "sdram-micron-mt46h32m32lf-6.h"
  43 #include "mmc-twl4030.h"
  44
  45 #define OMAP3_EVM_TS_GPIO       175
  46
  47 #define OMAP3EVM_ETHR_START     0x2c000000
  48 #define OMAP3EVM_ETHR_SIZE      1024
  49 #define OMAP3EVM_ETHR_GPIO_IRQ  176
  50 #define OMAP3EVM_SMC911X_CS     5
  51
  52 static struct resource omap3evm_smc911x_resources[] = {
  53         [0] =   {
  54                 .start  = OMAP3EVM_ETHR_START,
  55                 .end    = (OMAP3EVM_ETHR_START + OMAP3EVM_ETHR_SIZE - 1),
  56                 .flags  = IORESOURCE_MEM,
  57         },
  58         [1] =   {
  59                 .start  = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ),
  60                 .end    = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ),
  61                 .flags  = IORESOURCE_IRQ,
  62         },
  63 };
  64
  65 static struct platform_device omap3evm_smc911x_device = {
  66         .name           = "smc911x",
  67         .id             = -1,
  68         .num_resources  = ARRAY_SIZE(omap3evm_smc911x_resources),
  69         .resource       = &omap3evm_smc911x_resources[0],
  70 };
  71
  72 static inline void __init omap3evm_init_smc911x(void)
  73 {
  74         int eth_cs;
  75         struct clk *l3ck;
  76         unsigned int rate;
  77
  78         eth_cs = OMAP3EVM_SMC911X_CS;
  79
  80         l3ck = clk_get(NULL, "l3_ck");
  81         if (IS_ERR(l3ck))
  82                 rate = 100000000;
  83         else
  84                 rate = clk_get_rate(l3ck);
  85
  86         if (gpio_request(OMAP3EVM_ETHR_GPIO_IRQ, "SMC911x irq") < 0) {
  87                 printk(KERN_ERR "Failed to request GPIO%d for smc911x IRQ\n",
  88                         OMAP3EVM_ETHR_GPIO_IRQ);
  89                 return;
  90         }
  91
  92         gpio_direction_input(OMAP3EVM_ETHR_GPIO_IRQ);
  93 }
  94
  95 static struct twl4030_hsmmc_info mmc[] = {
  96         {
  97                 .mmc            = 1,
  98                 .wires          = 4,
  99                 .gpio_cd        = -EINVAL,
 100                 .gpio_wp        = 63,
 101         },
 102         {}      /* Terminator */
 103 };
 104
 105 static struct gpio_led gpio_leds[] = {
 106         {
 107                 .name                   = "omap3evm::ledb",
 108                 /* normally not visible (board underside) */
 109                 .default_trigger        = "default-on",
 110                 .gpio                   = -EINVAL,      /* gets replaced */
 111                 .active_low             = true,
 112         },
 113 };
 114
 115 static struct gpio_led_platform_data gpio_led_info = {
 116         .leds           = gpio_leds,
 117         .num_leds       = ARRAY_SIZE(gpio_leds),
 118 };
 119
 120 static struct platform_device leds_gpio = {
 121         .name   = "leds-gpio",
 122         .id     = -1,
 123         .dev    = {
 124                 .platform_data  = &gpio_led_info,
 125         },
 126 };
 127
 128
 129 static int omap3evm_twl_gpio_setup(struct device *dev,
 130                 unsigned gpio, unsigned ngpio)
 131 {
 132         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
 133         omap_cfg_reg(L8_34XX_GPIO63);
 134         mmc[0].gpio_cd = gpio + 0;
 135         twl4030_mmc_init(mmc);
 136
 137         /*
 138          * Most GPIOs are for USB OTG.  Some are mostly sent to
 139          * the P2 connector; notably LEDA for the LCD backlight.
 140          */
 141
 142         /* TWL4030_GPIO_MAX + 1 == ledB (out, active low LED) */
 143         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 144
 145         platform_device_register(&leds_gpio);
 146
 147         return 0;
 148 }
 149
 150 static struct twl4030_gpio_platform_data omap3evm_gpio_data = {
 151         .gpio_base      = OMAP_MAX_GPIO_LINES,
 152         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 153         .irq_end        = TWL4030_GPIO_IRQ_END,
 154         .use_leds       = true,
 155         .setup          = omap3evm_twl_gpio_setup,
 156 };
 157
 158 static struct twl4030_usb_data omap3evm_usb_data = {
 159         .usb_mode       = T2_USB_MODE_ULPI,
 160 };
 161
 162 static int omap3evm_keymap[] = {
 163         KEY(0, 0, KEY_LEFT),
 164         KEY(0, 1, KEY_RIGHT),
 165         KEY(0, 2, KEY_A),
 166         KEY(0, 3, KEY_B),
 167         KEY(1, 0, KEY_DOWN),
 168         KEY(1, 1, KEY_UP),
 169         KEY(1, 2, KEY_E),
 170         KEY(1, 3, KEY_F),
 171         KEY(2, 0, KEY_ENTER),
 172         KEY(2, 1, KEY_I),
 173         KEY(2, 2, KEY_J),
 174         KEY(2, 3, KEY_K),
 175         KEY(3, 0, KEY_M),
 176         KEY(3, 1, KEY_N),
 177         KEY(3, 2, KEY_O),
 178         KEY(3, 3, KEY_P)
 179 };
 180
 181 static struct twl4030_keypad_data omap3evm_kp_data = {
 182         .rows           = 4,
 183         .cols           = 4,
 184         .keymap         = omap3evm_keymap,
 185         .keymapsize     = ARRAY_SIZE(omap3evm_keymap),
 186         .rep            = 1,
 187 };
 188
 189 static struct twl4030_madc_platform_data omap3evm_madc_data = {
 190         .irq_line       = 1,
 191 };
 192
 193 static struct twl4030_platform_data omap3evm_twldata = {
 194         .irq_base       = TWL4030_IRQ_BASE,
 195         .irq_end        = TWL4030_IRQ_END,
 196
 197         /* platform_data for children goes here */
 198         .keypad         = &omap3evm_kp_data,
 199         .madc           = &omap3evm_madc_data,
 200         .usb            = &omap3evm_usb_data,
 201         .gpio           = &omap3evm_gpio_data,
 202 };
 203
 204 static struct i2c_board_info __initdata omap3evm_i2c_boardinfo[] = {
 205         {
 206                 I2C_BOARD_INFO("twl4030", 0x48),
 207                 .flags = I2C_CLIENT_WAKE,
 208                 .irq = INT_34XX_SYS_NIRQ,
 209                 .platform_data = &omap3evm_twldata,
 210         },
 211 };
 212
 213 static int __init omap3_evm_i2c_init(void)
 214 {
 215         omap_register_i2c_bus(1, 2600, omap3evm_i2c_boardinfo,
 216                         ARRAY_SIZE(omap3evm_i2c_boardinfo));
 217         omap_register_i2c_bus(2, 400, NULL, 0);
 218         omap_register_i2c_bus(3, 400, NULL, 0);
 219         return 0;
 220 }
 221
 222 static struct platform_device omap3_evm_lcd_device = {
 223         .name           = "omap3evm_lcd",
 224         .id             = -1,
 225 };
 226
 227 static struct omap_lcd_config omap3_evm_lcd_config __initdata = {
 228         .ctrl_name      = "internal",
 229 };
 230
 231 static void ads7846_dev_init(void)
 232 {
 233         if (gpio_request(OMAP3_EVM_TS_GPIO, "ADS7846 pendown") < 0)
 234                 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
 235
 236         gpio_direction_input(OMAP3_EVM_TS_GPIO);
 237
 238         omap_set_gpio_debounce(OMAP3_EVM_TS_GPIO, 1);
 239         omap_set_gpio_debounce_time(OMAP3_EVM_TS_GPIO, 0xa);
 240 }
 241
 242 static int ads7846_get_pendown_state(void)
 243 {
 244         return !gpio_get_value(OMAP3_EVM_TS_GPIO);
 245 }
 246
 247 struct ads7846_platform_data ads7846_config = {
 248         .x_max                  = 0x0fff,
 249         .y_max                  = 0x0fff,
 250         .x_plate_ohms           = 180,
 251         .pressure_max           = 255,
 252         .debounce_max           = 10,
 253         .debounce_tol           = 3,
 254         .debounce_rep           = 1,
 255         .get_pendown_state      = ads7846_get_pendown_state,
 256         .keep_vref_on           = 1,
 257         .settle_delay_usecs     = 150,
 258 };
 259
 260 static struct omap2_mcspi_device_config ads7846_mcspi_config = {
 261         .turbo_mode     = 0,
 262         .single_channel = 1,    /* 0: slave, 1: master */
 263 };
 264
 265 struct spi_board_info omap3evm_spi_board_info[] = {
 266         [0] = {
 267                 .modalias               = "ads7846",
 268                 .bus_num                = 1,
 269                 .chip_select            = 0,
 270                 .max_speed_hz           = 1500000,
 271                 .controller_data        = &ads7846_mcspi_config,
 272                 .irq                    = OMAP_GPIO_IRQ(OMAP3_EVM_TS_GPIO),
 273                 .platform_data          = &ads7846_config,
 274         },
 275 };
 276
 277 static void __init omap3_evm_init_irq(void)
 278 {
 279         omap2_init_common_hw(mt46h32m32lf6_sdrc_params, NULL);
 280         omap_init_irq();
 281         omap_gpio_init();
 282         omap3evm_init_smc911x();
 283 }
 284
 285 static struct omap_board_config_kernel omap3_evm_config[] __initdata = {
 286         { OMAP_TAG_LCD,         &omap3_evm_lcd_config },
 287 };
 288
 289 static struct platform_device *omap3_evm_devices[] __initdata = {
 290         &omap3_evm_lcd_device,
 291         &omap3evm_smc911x_device,
 292 };
 293
 294 static void __init omap3_evm_init(void)
 295 {
 296         omap3_evm_i2c_init();
 297
 298         platform_add_devices(omap3_evm_devices, ARRAY_SIZE(omap3_evm_devices));
 299         omap_board_config = omap3_evm_config;
 300         omap_board_config_size = ARRAY_SIZE(omap3_evm_config);
 301
 302         spi_register_board_info(omap3evm_spi_board_info,
 303                                 ARRAY_SIZE(omap3evm_spi_board_info));
 304
 305         omap_serial_init();
 306 #ifdef CONFIG_NOP_USB_XCEIV
 307         /* OMAP3EVM uses ISP1504 phy and so register nop transceiver */
 308         usb_nop_xceiv_register();
 309 #endif
 310         usb_musb_init();
 311         ads7846_dev_init();
 312 }
 313
 314 static void __init omap3_evm_map_io(void)
 315 {
 316         omap2_set_globals_343x();
 317         omap2_map_common_io();
 318 }
 319
 320 MACHINE_START(OMAP3EVM, "OMAP3 EVM")
 321         /* Maintainer: Syed Mohammed Khasim - Texas Instruments */
 322         .phys_io        = 0x48000000,
 323         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 324         .boot_params    = 0x80000100,
 325         .map_io         = omap3_evm_map_io,
 326         .init_irq       = omap3_evm_init_irq,
 327         .init_machine   = omap3_evm_init,
 328         .timer          = &omap_timer,
 329 MACHINE_END