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 <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/mcspi.h>
  33 #include <mach/gpio.h>
  34 #include <mach/mux.h>
  35 #include <mach/board.h>
  36 #include <mach/usb-musb.h>
  37 #include <mach/usb-ehci.h>
  38 #include <mach/hsmmc.h>
  39 #include <mach/common.h>
  40 #include <mach/keypad.h>
  41 #include <mach/dma.h>
  42 #include <mach/gpmc.h>
  43 #include <linux/i2c/twl4030-rtc.h>
  44
  45 #include <asm/io.h>
  46 #include <asm/delay.h>
  47 #include <mach/control.h>
  48
  49 #include "sdram-qimonda-hyb18m512160af-6.h"
  50
  51 #define SDP3430_SMC91X_CS       3
  52
  53 #define ENABLE_VAUX3_DEDICATED  0x03
  54 #define ENABLE_VAUX3_DEV_GRP    0x20
  55
  56
  57 #define TWL4030_MSECURE_GPIO 22
  58
  59 static struct resource sdp3430_smc91x_resources[] = {
  60         [0] = {
  61                 .start  = OMAP34XX_ETHR_START,
  62                 .end    = OMAP34XX_ETHR_START + SZ_4K,
  63                 .flags  = IORESOURCE_MEM,
  64         },
  65         [1] = {
  66                 .start  = 0,
  67                 .end    = 0,
  68                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
  69         },
  70 };
  71
  72 static struct platform_device sdp3430_smc91x_device = {
  73         .name           = "smc91x",
  74         .id             = -1,
  75         .num_resources  = ARRAY_SIZE(sdp3430_smc91x_resources),
  76         .resource       = sdp3430_smc91x_resources,
  77 };
  78
  79 static int sdp3430_keymap[] = {
  80         KEY(0, 0, KEY_LEFT),
  81         KEY(0, 1, KEY_RIGHT),
  82         KEY(0, 2, KEY_A),
  83         KEY(0, 3, KEY_B),
  84         KEY(0, 4, KEY_C),
  85         KEY(1, 0, KEY_DOWN),
  86         KEY(1, 1, KEY_UP),
  87         KEY(1, 2, KEY_E),
  88         KEY(1, 3, KEY_F),
  89         KEY(1, 4, KEY_G),
  90         KEY(2, 0, KEY_ENTER),
  91         KEY(2, 1, KEY_I),
  92         KEY(2, 2, KEY_J),
  93         KEY(2, 3, KEY_K),
  94         KEY(2, 4, KEY_3),
  95         KEY(3, 0, KEY_M),
  96         KEY(3, 1, KEY_N),
  97         KEY(3, 2, KEY_O),
  98         KEY(3, 3, KEY_P),
  99         KEY(3, 4, KEY_Q),
 100         KEY(4, 0, KEY_R),
 101         KEY(4, 1, KEY_4),
 102         KEY(4, 2, KEY_T),
 103         KEY(4, 3, KEY_U),
 104         KEY(4, 4, KEY_D),
 105         KEY(5, 0, KEY_V),
 106         KEY(5, 1, KEY_W),
 107         KEY(5, 2, KEY_L),
 108         KEY(5, 3, KEY_S),
 109         KEY(5, 4, KEY_H),
 110         0
 111 };
 112
 113 static struct omap_kp_platform_data sdp3430_kp_data = {
 114         .rows           = 5,
 115         .cols           = 6,
 116         .keymap         = sdp3430_keymap,
 117         .keymapsize     = ARRAY_SIZE(sdp3430_keymap),
 118         .rep            = 1,
 119         .irq            = TWL4030_MODIRQ_KEYPAD,
 120 };
 121
 122 static struct platform_device sdp3430_kp_device = {
 123         .name           = "omap_twl4030keypad",
 124         .id             = -1,
 125         .dev            = {
 126                 .platform_data  = &sdp3430_kp_data,
 127         },
 128 };
 129
 130 static int ts_gpio;
 131
 132 #ifdef CONFIG_RTC_DRV_TWL4030
 133 static int twl4030_rtc_init(void)
 134 {
 135         int ret = 0;
 136
 137         /* 3430ES2.0 doesn't have msecure/gpio-22 line connected to T2 */
 138         if (is_device_type_gp() && is_sil_rev_less_than(OMAP3430_REV_ES2_0)) {
 139                 u32 msecure_pad_config_reg = omap_ctrl_base_get() + 0xA3C;
 140                 int mux_mask = 0x04;
 141                 u16 tmp;
 142
 143                 ret = omap_request_gpio(TWL4030_MSECURE_GPIO);
 144                 if (ret < 0) {
 145                         printk(KERN_ERR "twl4030_rtc_init: can't"
 146                                 "reserve GPIO:%d !\n", TWL4030_MSECURE_GPIO);
 147                         goto out;
 148                 }
 149                 /*
 150                  * TWL4030 will be in secure mode if msecure line from OMAP
 151                  * is low. Make msecure line high in order to change the
 152                  * TWL4030 RTC time and calender registers.
 153                  */
 154                 omap_set_gpio_direction(TWL4030_MSECURE_GPIO, 0);
 155
 156                 tmp = omap_readw(msecure_pad_config_reg);
 157                 tmp &= 0xF8; /* To enable mux mode 03/04 = GPIO_RTC */
 158                 tmp |= mux_mask;/* To enable mux mode 03/04 = GPIO_RTC */
 159                 omap_writew(tmp, msecure_pad_config_reg);
 160
 161                 omap_set_gpio_dataout(TWL4030_MSECURE_GPIO, 1);
 162         }
 163 out:
 164         return ret;
 165 }
 166
 167 static void twl4030_rtc_exit(void)
 168 {
 169         if (is_device_type_gp() &&
 170                         is_sil_rev_less_than(OMAP3430_REV_ES2_0)) {
 171                 omap_free_gpio(TWL4030_MSECURE_GPIO);
 172         }
 173 }
 174
 175 static struct twl4030rtc_platform_data sdp3430_twl4030rtc_data = {
 176         .init = &twl4030_rtc_init,
 177         .exit = &twl4030_rtc_exit,
 178 };
 179
 180 static struct platform_device sdp3430_twl4030rtc_device = {
 181         .name = "twl4030_rtc",
 182         .id = -1,
 183         .dev = {
 184         .platform_data = &sdp3430_twl4030rtc_data,
 185         },
 186 };
 187 #endif
 188
 189 /**
 190  * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq
 191  *
 192  * @return - void. If request gpio fails then Flag KERN_ERR.
 193  */
 194 static void ads7846_dev_init(void)
 195 {
 196         if (omap_request_gpio(ts_gpio) < 0) {
 197                 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
 198                 return;
 199         }
 200
 201         omap_set_gpio_direction(ts_gpio, 1);
 202
 203         omap_set_gpio_debounce(ts_gpio, 1);
 204         omap_set_gpio_debounce_time(ts_gpio, 0xa);
 205 }
 206
 207 static int ads7846_get_pendown_state(void)
 208 {
 209         return !omap_get_gpio_datain(ts_gpio);
 210 }
 211
 212 /*
 213  * This enable(1)/disable(0) the voltage for TS: uses twl4030 calls
 214  */
 215 static int ads7846_vaux_control(int vaux_cntrl)
 216 {
 217         int ret = 0;
 218
 219 #ifdef CONFIG_TWL4030_CORE
 220         /* check for return value of ldo_use: if success it returns 0 */
 221         if (vaux_cntrl == VAUX_ENABLE) {
 222                 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
 223                         ENABLE_VAUX3_DEDICATED, TWL4030_VAUX3_DEDICATED))
 224                         return -EIO;
 225                 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
 226                         ENABLE_VAUX3_DEV_GRP, TWL4030_VAUX3_DEV_GRP))
 227                         return -EIO;
 228         } else if (vaux_cntrl == VAUX_DISABLE) {
 229                 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
 230                         0x00, TWL4030_VAUX3_DEDICATED))
 231                         return -EIO;
 232                 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
 233                         0x00, TWL4030_VAUX3_DEV_GRP))
 234                         return -EIO;
 235         }
 236 #else
 237         ret = -EIO;
 238 #endif
 239         return ret;
 240 }
 241
 242 static struct ads7846_platform_data tsc2046_config __initdata = {
 243         .get_pendown_state      = ads7846_get_pendown_state,
 244         .keep_vref_on           = 1,
 245         .vaux_control           = ads7846_vaux_control,
 246 };
 247
 248
 249 static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
 250         .turbo_mode     = 0,
 251         .single_channel = 1,  /* 0: slave, 1: master */
 252 };
 253
 254 static struct spi_board_info sdp3430_spi_board_info[] __initdata = {
 255         [0] = {
 256                 /*
 257                  * TSC2046 operates at a max freqency of 2MHz, so
 258                  * operate slightly below at 1.5MHz
 259                  */
 260                 .modalias               = "ads7846",
 261                 .bus_num                = 1,
 262                 .chip_select            = 0,
 263                 .max_speed_hz           = 1500000,
 264                 .controller_data        = &tsc2046_mcspi_config,
 265                 .irq                    = 0,
 266                 .platform_data          = &tsc2046_config,
 267         },
 268 };
 269
 270 static struct platform_device sdp3430_lcd_device = {
 271         .name           = "sdp2430_lcd",
 272         .id             = -1,
 273 };
 274
 275 static struct platform_device *sdp3430_devices[] __initdata = {
 276         &sdp3430_smc91x_device,
 277         &sdp3430_kp_device,
 278         &sdp3430_lcd_device,
 279 #ifdef CONFIG_RTC_DRV_TWL4030
 280         &sdp3430_twl4030rtc_device,
 281 #endif
 282 };
 283
 284 static inline void __init sdp3430_init_smc91x(void)
 285 {
 286         int eth_cs;
 287         unsigned long cs_mem_base;
 288         int eth_gpio = 0;
 289
 290         eth_cs = SDP3430_SMC91X_CS;
 291
 292         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
 293                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
 294                 return;
 295         }
 296
 297         sdp3430_smc91x_resources[0].start = cs_mem_base + 0x0;
 298         sdp3430_smc91x_resources[0].end   = cs_mem_base + 0xf;
 299         udelay(100);
 300
 301         if (is_sil_rev_greater_than(OMAP3430_REV_ES1_0))
 302                 eth_gpio = OMAP34XX_ETHR_GPIO_IRQ_SDPV2;
 303         else
 304                 eth_gpio = OMAP34XX_ETHR_GPIO_IRQ_SDPV1;
 305
 306         sdp3430_smc91x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
 307
 308         if (omap_request_gpio(eth_gpio) < 0) {
 309                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
 310                         eth_gpio);
 311                 return;
 312         }
 313         omap_set_gpio_direction(eth_gpio, 1);
 314 }
 315
 316 static void __init omap_3430sdp_init_irq(void)
 317 {
 318         omap2_init_common_hw(hyb18m512160af6_sdrc_params);
 319         omap_init_irq();
 320         omap_gpio_init();
 321         sdp3430_init_smc91x();
 322 }
 323
 324 static struct omap_uart_config sdp3430_uart_config __initdata = {
 325         .enabled_uarts  = ((1 << 0) | (1 << 1) | (1 << 2)),
 326 };
 327
 328 static struct omap_lcd_config sdp3430_lcd_config __initdata = {
 329         .ctrl_name      = "internal",
 330 };
 331
 332 static struct omap_board_config_kernel sdp3430_config[] __initdata = {
 333         { OMAP_TAG_UART,        &sdp3430_uart_config },
 334         { OMAP_TAG_LCD,         &sdp3430_lcd_config },
 335 };
 336
 337 static int __init omap3430_i2c_init(void)
 338 {
 339         omap_register_i2c_bus(1, 2600, NULL, 0);
 340         omap_register_i2c_bus(2, 400, NULL, 0);
 341         omap_register_i2c_bus(3, 400, NULL, 0);
 342         return 0;
 343 }
 344
 345 extern void __init sdp3430_flash_init(void);
 346
 347 static void __init omap_3430sdp_init(void)
 348 {
 349         platform_add_devices(sdp3430_devices, ARRAY_SIZE(sdp3430_devices));
 350         omap_board_config = sdp3430_config;
 351         omap_board_config_size = ARRAY_SIZE(sdp3430_config);
 352         if (is_sil_rev_greater_than(OMAP3430_REV_ES1_0))
 353                 ts_gpio = OMAP34XX_TS_GPIO_IRQ_SDPV2;
 354         else
 355                 ts_gpio = OMAP34XX_TS_GPIO_IRQ_SDPV1;
 356         sdp3430_spi_board_info[0].irq = OMAP_GPIO_IRQ(ts_gpio);
 357         spi_register_board_info(sdp3430_spi_board_info,
 358                                 ARRAY_SIZE(sdp3430_spi_board_info));
 359         ads7846_dev_init();
 360         sdp3430_flash_init();
 361         twl4030_bci_battery_init();
 362         omap_serial_init();
 363         usb_musb_init();
 364         usb_ehci_init();
 365         hsmmc_init();
 366 }
 367
 368 static void __init omap_3430sdp_map_io(void)
 369 {
 370         omap2_set_globals_343x();
 371         omap2_map_common_io();
 372 }
 373 arch_initcall(omap3430_i2c_init);
 374
 375 MACHINE_START(OMAP_3430SDP, "OMAP3430 3430SDP board")
 376         /* Maintainer: Syed Khasim - Texas Instruments Inc */
 377         .phys_io        = 0x48000000,
 378         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 379         .boot_params    = 0x80000100,
 380         .map_io         = omap_3430sdp_map_io,
 381         .init_irq       = omap_3430sdp_init_irq,
 382         .init_machine   = omap_3430sdp_init,
 383         .timer          = &omap_timer,
 384 MACHINE_END