arch/arm/mach-omap2/board-rx51-peripherals.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-rx51-flash.c
   3  *
   4  * Copyright (C) 2008 Nokia
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/platform_device.h>
  14 #include <linux/input.h>
  15 #include <linux/spi/spi.h>
  16 #include <linux/spi/tsc2005.h>
  17 #include <linux/i2c.h>
  18 #include <linux/i2c/twl4030.h>
  19 #include <linux/clk.h>
  20 #include <linux/delay.h>
  21
  22 #include <mach/mcspi.h>
  23 #include <mach/gpio.h>
  24 #include <mach/mux.h>
  25 #include <mach/board.h>
  26 #include <mach/common.h>
  27 #include <mach/keypad.h>
  28 #include <mach/dma.h>
  29 #include <mach/gpmc.h>
  30
  31 #define RX51_DEBUG_BASE                 0x08000000  /* debug board */
  32 #define RX51_ETHR_START                 RX51_DEBUG_BASE
  33 #define RX51_ETHR_GPIO_IRQ              54
  34
  35 #define RX51_TSC2005_RESET_GPIO         104
  36 #define RX51_TSC2005_IRQ_GPIO           100
  37
  38 #define RX51_SMC91X_CS                  1
  39
  40 static struct resource rx51_smc91x_resources[] = {
  41         [0] = {
  42                 .start  = RX51_ETHR_START,
  43                 .end    = RX51_ETHR_START + SZ_4K,
  44                 .flags          = IORESOURCE_MEM,
  45         },
  46         [1] = {
  47                 .start          = OMAP_GPIO_IRQ(RX51_ETHR_GPIO_IRQ),
  48                 .end    = 0,
  49                 .flags          = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  50         },
  51 };
  52
  53 static struct platform_device rx51_smc91x_device = {
  54         .name           = "smc91x",
  55         .id             = -1,
  56         .num_resources  = ARRAY_SIZE(rx51_smc91x_resources),
  57         .resource       = rx51_smc91x_resources,
  58 };
  59
  60 static struct tsc2005_platform_data tsc2005_config = {
  61         .reset_gpio             = RX51_TSC2005_RESET_GPIO, /* not used */
  62
  63         .ts_x_plate_ohm         = 280,
  64         .ts_hw_avg              = 0,
  65         .ts_touch_pressure      = 1500,
  66         .ts_stab_time           = 1000,
  67         .ts_pressure_max        = 2048,
  68         .ts_pressure_fudge      = 2,
  69         .ts_x_max               = 4096,
  70         .ts_x_fudge             = 4,
  71         .ts_y_max               = 4096,
  72         .ts_y_fudge             = 7,
  73 };
  74
  75 static struct omap2_mcspi_device_config tsc2005_mcspi_config = {
  76         .turbo_mode     = 0,
  77         .single_channel = 1,
  78 };
  79
  80
  81 static struct spi_board_info rx51_peripherals_spi_board_info[] = {
  82         [0] = {
  83                 .modalias               = "tsc2005",
  84                 .bus_num                = 1,
  85                 .chip_select            = 0,
  86                 .irq                    = OMAP_GPIO_IRQ(RX51_TSC2005_IRQ_GPIO),
  87                 .max_speed_hz           = 6000000,
  88                 .controller_data        = &tsc2005_mcspi_config,
  89                 .platform_data          = &tsc2005_config,
  90         },
  91 };
  92
  93 static int rx51_keymap[] = {
  94         KEY(0, 0, KEY_Q),
  95         KEY(0, 1, KEY_W),
  96         KEY(0, 2, KEY_E),
  97         KEY(0, 3, KEY_R),
  98         KEY(0, 4, KEY_T),
  99         KEY(0, 5, KEY_Y),
 100         KEY(0, 6, KEY_U),
 101         KEY(0, 7, KEY_I),
 102         KEY(1, 0, KEY_O),
 103         KEY(1, 1, KEY_D),
 104         KEY(1, 2, KEY_DOT ),
 105         KEY(1, 3, KEY_V),
 106         KEY(1, 4, KEY_DOWN ),
 107         KEY(2, 0, KEY_P),
 108         KEY(2, 1, KEY_F),
 109         KEY(2, 2, KEY_UP ),
 110         KEY(2, 3, KEY_B),
 111         KEY(2, 4, KEY_RIGHT ),
 112         KEY(3, 0, KEY_COMMA ),
 113         KEY(3, 1, KEY_G),
 114         KEY(3, 2, KEY_ENTER ),
 115         KEY(3, 3, KEY_N),
 116         KEY(4, 0, KEY_BACKSPACE ),
 117         KEY(4, 1, KEY_H),
 118         KEY(4, 3, KEY_M),
 119         KEY(4, 4, KEY_LEFTCTRL),
 120         KEY(5, 1, KEY_J),
 121         KEY(5, 2, KEY_Z),
 122         KEY(5, 3, KEY_SPACE),
 123         KEY(5, 4, KEY_LEFTSHIFT),
 124         KEY(6, 0, KEY_A),
 125         KEY(6, 1, KEY_K),
 126         KEY(6, 2, KEY_X),
 127         KEY(6, 3, KEY_SPACE),
 128         KEY(6, 4, KEY_FN ),
 129         KEY(7, 0, KEY_S),
 130         KEY(7, 1, KEY_L),
 131         KEY(7, 2, KEY_C),
 132         KEY(7, 3, KEY_LEFT),
 133         KEY(0xff, 0, KEY_F6),
 134         KEY(0xff, 1, KEY_F7),
 135         KEY(0xff, 2, KEY_F8),
 136         KEY(0xff, 4, KEY_F9),
 137         KEY(0xff, 5, KEY_F10),
 138 };
 139
 140 static struct twl4030_keypad_data rx51_kp_data = {
 141         .rows           = 8,
 142         .cols           = 8,
 143         .keymap         = rx51_keymap,
 144         .keymapsize     = ARRAY_SIZE(rx51_keymap),
 145         .rep            = 1,
 146 };
 147
 148 static struct platform_device *rx51_peripherals_devices[] = {
 149         &rx51_smc91x_device,
 150 };
 151
 152 static void __init rx51_init_smc91x(void)
 153 {
 154         int eth_cs;
 155         unsigned long cs_mem_base;
 156         unsigned int rate;
 157         struct clk *l3ck;
 158
 159         eth_cs  = RX51_SMC91X_CS;
 160
 161         l3ck = clk_get(NULL, "core_l3_ck");
 162         if (IS_ERR(l3ck))
 163                 rate = 100000000;
 164         else
 165                 rate = clk_get_rate(l3ck);
 166
 167         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
 168                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
 169                 return;
 170         }
 171
 172         rx51_smc91x_resources[0].start = cs_mem_base + 0x0;
 173         rx51_smc91x_resources[0].end   = cs_mem_base + 0xf;
 174         udelay(100);
 175
 176         if (gpio_request(RX51_ETHR_GPIO_IRQ, "SMC91X irq") < 0) {
 177                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
 178                         RX51_ETHR_GPIO_IRQ);
 179                 return;
 180         }
 181         gpio_direction_input(RX51_ETHR_GPIO_IRQ);
 182 }
 183
 184 static void __init rx51_init_tsc2005(void)
 185 {
 186         int r;
 187
 188         r = gpio_request(RX51_TSC2005_IRQ_GPIO, "tsc2005 DAV IRQ");
 189         if (r >= 0) {
 190                 gpio_direction_input(RX51_TSC2005_IRQ_GPIO);
 191         } else {
 192                 printk(KERN_ERR "unable to get DAV GPIO");
 193         }
 194 }
 195
 196 static struct twl4030_usb_data rx51_usb_data = {
 197         .usb_mode               = T2_USB_MODE_ULPI,
 198 };
 199
 200 static struct twl4030_madc_platform_data rx51_madc_data = {
 201         .irq_line               = 1,
 202 };
 203
 204 static struct twl4030_gpio_platform_data rx51_gpio_data = {
 205         .gpio_base              = OMAP_MAX_GPIO_LINES,
 206         .irq_base               = TWL4030_GPIO_IRQ_BASE,
 207         .irq_end                = TWL4030_GPIO_IRQ_END,
 208 };
 209
 210 static struct twl4030_platform_data rx51_twldata = {
 211         .irq_base               = TWL4030_IRQ_BASE,
 212         .irq_end                = TWL4030_IRQ_END,
 213
 214         /* platform_data for children goes here */
 215         .gpio                   = &rx51_gpio_data,
 216         .keypad                 = &rx51_kp_data,
 217         .madc                   = &rx51_madc_data,
 218         .usb                    = &rx51_usb_data,
 219 };
 220
 221 static struct i2c_board_info __initdata rx51_peripherals_i2c_board_info_1[] = {
 222         {
 223                 I2C_BOARD_INFO("twl4030", 0x48),
 224                 .flags = I2C_CLIENT_WAKE,
 225                 .irq = INT_34XX_SYS_NIRQ,
 226                 .platform_data = &rx51_twldata,
 227         },
 228 };
 229
 230 static int __init rx51_i2c_init(void)
 231 {
 232         omap_register_i2c_bus(1, 2600, rx51_peripherals_i2c_board_info_1,
 233                         ARRAY_SIZE(rx51_peripherals_i2c_board_info_1));
 234         omap_register_i2c_bus(2, 100, NULL, 0);
 235         omap_register_i2c_bus(3, 400, NULL, 0);
 236         return 0;
 237 }
 238
 239
 240 void __init rx51_peripherals_init(void)
 241 {
 242         platform_add_devices(rx51_peripherals_devices,
 243                                 ARRAY_SIZE(rx51_peripherals_devices));
 244         spi_register_board_info(rx51_peripherals_spi_board_info,
 245                                 ARRAY_SIZE(rx51_peripherals_spi_board_info));
 246         rx51_i2c_init();
 247         rx51_init_smc91x();
 248         rx51_init_tsc2005();
 249 }
 250