arch/arm/mach-omap2/board-3430sdp.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-3430sdp.c
   3  *
   4  * Copyright (C) 2007 Texas Instruments
   5  *
   6  * Modified from mach-omap2/board-generic.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/input.h>
  20 #include <linux/workqueue.h>
  21 #include <linux/err.h>
  22 #include <linux/clk.h>
  23 #include <linux/i2c/twl4030.h>
  24 #include <linux/spi/spi.h>
  25 #include <linux/spi/ads7846.h>
  26
  27 #include <asm/hardware.h>
  28 #include <asm/mach-types.h>
  29 #include <asm/mach/arch.h>
  30 #include <asm/mach/map.h>
  31
  32 #include <asm/arch/mcspi.h>
  33 #include <asm/arch/gpio.h>
  34 #include <asm/arch/mux.h>
  35 #include <asm/arch/board.h>
  36 #include <asm/arch/usb-musb.h>
  37 #include <asm/arch/usb-ehci.h>
  38 #include <asm/arch/hsmmc.h>
  39 #include <asm/arch/common.h>
  40 #include <asm/arch/keypad.h>
  41 #include <asm/arch/dma.h>
  42 #include <asm/arch/gpmc.h>
  43
  44 #include <asm/io.h>
  45 #include <asm/delay.h>
  46
  47 #define SDP3430_SMC91X_CS       3
  48
  49 #define ENABLE_VAUX3_DEDICATED  0x03
  50 #define ENABLE_VAUX3_DEV_GRP    0x20
  51
  52
  53 static struct resource sdp3430_smc91x_resources[] = {
  54         [0] = {
  55                 .start  = OMAP34XX_ETHR_START,
  56                 .end    = OMAP34XX_ETHR_START + SZ_4K,
  57                 .flags  = IORESOURCE_MEM,
  58         },
  59         [1] = {
  60                 .start  = 0,
  61                 .end    = 0,
  62                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
  63         },
  64 };
  65
  66 static struct platform_device sdp3430_smc91x_device = {
  67         .name           = "smc91x",
  68         .id             = -1,
  69         .num_resources  = ARRAY_SIZE(sdp3430_smc91x_resources),
  70         .resource       = sdp3430_smc91x_resources,
  71 };
  72
  73 static int sdp3430_keymap[] = {
  74         KEY(0, 0, KEY_LEFT),
  75         KEY(0, 1, KEY_RIGHT),
  76         KEY(0, 2, KEY_A),
  77         KEY(0, 3, KEY_B),
  78         KEY(0, 4, KEY_C),
  79         KEY(1, 0, KEY_DOWN),
  80         KEY(1, 1, KEY_UP),
  81         KEY(1, 2, KEY_E),
  82         KEY(1, 3, KEY_F),
  83         KEY(1, 4, KEY_G),
  84         KEY(2, 0, KEY_ENTER),
  85         KEY(2, 1, KEY_I),
  86         KEY(2, 2, KEY_J),
  87         KEY(2, 3, KEY_K),
  88         KEY(2, 4, KEY_3),
  89         KEY(3, 0, KEY_M),
  90         KEY(3, 1, KEY_N),
  91         KEY(3, 2, KEY_O),
  92         KEY(3, 3, KEY_P),
  93         KEY(3, 4, KEY_Q),
  94         KEY(4, 0, KEY_R),
  95         KEY(4, 1, KEY_4),
  96         KEY(4, 2, KEY_T),
  97         KEY(4, 3, KEY_U),
  98         KEY(4, 4, KEY_D),
  99         KEY(5, 0, KEY_V),
 100         KEY(5, 1, KEY_W),
 101         KEY(5, 2, KEY_L),
 102         KEY(5, 3, KEY_S),
 103         KEY(5, 4, KEY_H),
 104         0
 105 };
 106
 107 static struct omap_kp_platform_data sdp3430_kp_data = {
 108         .rows           = 5,
 109         .cols           = 6,
 110         .keymap         = sdp3430_keymap,
 111         .keymapsize     = ARRAY_SIZE(sdp3430_keymap),
 112         .rep            = 1,
 113 };
 114
 115 static struct platform_device sdp3430_kp_device = {
 116         .name           = "omap_twl4030keypad",
 117         .id             = -1,
 118         .dev            = {
 119                 .platform_data  = &sdp3430_kp_data,
 120         },
 121 };
 122
 123 static int ts_gpio;
 124
 125 /**
 126  * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq
 127  *
 128  * @return - void. If request gpio fails then Flag KERN_ERR.
 129  */
 130 static void ads7846_dev_init(void)
 131 {
 132         if (omap_request_gpio(ts_gpio) < 0) {
 133                 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
 134                 return;
 135         }
 136
 137         omap_set_gpio_direction(ts_gpio, 1);
 138
 139         omap_set_gpio_debounce(ts_gpio, 1);
 140         omap_set_gpio_debounce_time(ts_gpio, 0xa);
 141 }
 142
 143 static int ads7846_get_pendown_state(void)
 144 {
 145         return !omap_get_gpio_datain(ts_gpio);
 146 }
 147
 148 /*
 149  * This enable(1)/disable(0) the voltage for TS: uses twl4030 calls
 150  */
 151 static int ads7846_vaux_control(int vaux_cntrl)
 152 {
 153         int ret = 0;
 154
 155 #ifdef CONFIG_TWL4030_CORE
 156         /* check for return value of ldo_use: if success it returns 0 */
 157         if (vaux_cntrl == VAUX_ENABLE) {
 158                 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
 159                         ENABLE_VAUX3_DEDICATED, TWL4030_VAUX3_DEDICATED))
 160                         return -EIO;
 161                 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
 162                         ENABLE_VAUX3_DEV_GRP, TWL4030_VAUX3_DEV_GRP))
 163                         return -EIO;
 164         } else if (vaux_cntrl == VAUX_DISABLE) {
 165                 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
 166                         0x00, TWL4030_VAUX3_DEDICATED))
 167                         return -EIO;
 168                 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
 169                         0x00, TWL4030_VAUX3_DEV_GRP))
 170                         return -EIO;
 171         }
 172 #else
 173         ret = -EIO;
 174 #endif
 175         return ret;
 176 }
 177
 178 static struct ads7846_platform_data tsc2046_config __initdata = {
 179         .get_pendown_state      = ads7846_get_pendown_state,
 180         .keep_vref_on           = 1,
 181         .vaux_control           = ads7846_vaux_control,
 182 };
 183
 184
 185 static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
 186         .turbo_mode     = 0,
 187         .single_channel = 1,  /* 0: slave, 1: master */
 188 };
 189
 190 static struct spi_board_info sdp3430_spi_board_info[] __initdata = {
 191         [0] = {
 192                 /*
 193                  * TSC2046 operates at a max freqency of 2MHz, so
 194                  * operate slightly below at 1.5MHz
 195                  */
 196                 .modalias               = "ads7846",
 197                 .bus_num                = 1,
 198                 .chip_select            = 0,
 199                 .max_speed_hz           = 1500000,
 200                 .controller_data        = &tsc2046_mcspi_config,
 201                 .irq                    = 0,
 202                 .platform_data          = &tsc2046_config,
 203         },
 204 };
 205
 206 static struct platform_device sdp3430_lcd_device = {
 207         .name           = "sdp2430_lcd",
 208         .id             = -1,
 209 };
 210
 211 static struct platform_device *sdp3430_devices[] __initdata = {
 212         &sdp3430_smc91x_device,
 213         &sdp3430_kp_device,
 214         &sdp3430_lcd_device,
 215 };
 216
 217 static inline void __init sdp3430_init_smc91x(void)
 218 {
 219         int eth_cs;
 220         unsigned long cs_mem_base;
 221         int eth_gpio = 0;
 222
 223         eth_cs = SDP3430_SMC91X_CS;
 224
 225         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
 226                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
 227                 return;
 228         }
 229
 230         sdp3430_smc91x_resources[0].start = cs_mem_base + 0x0;
 231         sdp3430_smc91x_resources[0].end   = cs_mem_base + 0xf;
 232         udelay(100);
 233
 234         if (is_sil_rev_greater_than(OMAP3430_REV_ES1_0))
 235                 eth_gpio = OMAP34XX_ETHR_GPIO_IRQ_SDPV2;
 236         else
 237                 eth_gpio = OMAP34XX_ETHR_GPIO_IRQ_SDPV1;
 238
 239         sdp3430_smc91x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
 240
 241         if (omap_request_gpio(eth_gpio) < 0) {
 242                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
 243                         eth_gpio);
 244                 return;
 245         }
 246         omap_set_gpio_direction(eth_gpio, 1);
 247 }
 248
 249 static void __init omap_3430sdp_init_irq(void)
 250 {
 251         omap2_init_common_hw();
 252         omap_init_irq();
 253         omap_gpio_init();
 254         sdp3430_init_smc91x();
 255 }
 256
 257 static struct omap_uart_config sdp3430_uart_config __initdata = {
 258         .enabled_uarts  = ((1 << 0) | (1 << 1) | (1 << 2)),
 259 };
 260
 261 static struct omap_lcd_config sdp3430_lcd_config __initdata = {
 262         .ctrl_name      = "internal",
 263 };
 264
 265 static struct omap_mmc_config sdp3430_mmc_config __initdata = {
 266         .mmc [0] = {
 267                 .enabled        = 1,
 268                 .wire4          = 1,
 269         },
 270 };
 271
 272 static struct omap_board_config_kernel sdp3430_config[] __initdata = {
 273         { OMAP_TAG_UART,        &sdp3430_uart_config },
 274         {OMAP_TAG_LCD,          &sdp3430_lcd_config},
 275         {OMAP_TAG_MMC,          &sdp3430_mmc_config },
 276 };
 277
 278 static int __init omap3430_i2c_init(void)
 279 {
 280         omap_register_i2c_bus(1, 2600, NULL, 0);
 281         omap_register_i2c_bus(2, 400, NULL, 0);
 282         omap_register_i2c_bus(3, 400, NULL, 0);
 283         return 0;
 284 }
 285
 286 extern void __init sdp3430_flash_init(void);
 287
 288 static void __init omap_3430sdp_init(void)
 289 {
 290         platform_add_devices(sdp3430_devices, ARRAY_SIZE(sdp3430_devices));
 291         omap_board_config = sdp3430_config;
 292         omap_board_config_size = ARRAY_SIZE(sdp3430_config);
 293         if (is_sil_rev_greater_than(OMAP3430_REV_ES1_0))
 294                 ts_gpio = OMAP34XX_TS_GPIO_IRQ_SDPV2;
 295         else
 296                 ts_gpio = OMAP34XX_TS_GPIO_IRQ_SDPV1;
 297         sdp3430_spi_board_info[0].irq = OMAP_GPIO_IRQ(ts_gpio);
 298         spi_register_board_info(sdp3430_spi_board_info,
 299                                 ARRAY_SIZE(sdp3430_spi_board_info));
 300         ads7846_dev_init();
 301         sdp3430_flash_init();
 302         omap_serial_init();
 303         usb_musb_init();
 304         usb_ehci_init();
 305         hsmmc_init();
 306 }
 307
 308 static void __init omap_3430sdp_map_io(void)
 309 {
 310         omap2_set_globals_343x();
 311         omap2_map_common_io();
 312 }
 313 arch_initcall(omap3430_i2c_init);
 314
 315 MACHINE_START(OMAP_3430SDP, "OMAP3430 3430SDP board")
 316         /* Maintainer: Syed Khasim - Texas Instruments Inc */
 317         .phys_io        = 0x48000000,
 318         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 319         .boot_params    = 0x80000100,
 320         .map_io         = omap_3430sdp_map_io,
 321         .init_irq       = omap_3430sdp_init_irq,
 322         .init_machine   = omap_3430sdp_init,
 323         .timer          = &omap_timer,
 324 MACHINE_END