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/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/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 static int __init msecure_init(void)
 133 {
 134         int ret = 0;
 135
 136 #ifdef CONFIG_RTC_DRV_TWL4030
 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 = gpio_request(TWL4030_MSECURE_GPIO, "msecure");
 144                 if (ret < 0) {
 145                         printk(KERN_ERR "msecure_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                 tmp = omap_readw(msecure_pad_config_reg);
 155                 tmp &= 0xF8; /* To enable mux mode 03/04 = GPIO_RTC */
 156                 tmp |= mux_mask;/* To enable mux mode 03/04 = GPIO_RTC */
 157                 omap_writew(tmp, msecure_pad_config_reg);
 158
 159                 gpio_direction_output(TWL4030_MSECURE_GPIO, 1);
 160         }
 161 out:
 162 #endif
 163         return ret;
 164 }
 165
 166 /**
 167  * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq
 168  *
 169  * @return - void. If request gpio fails then Flag KERN_ERR.
 170  */
 171 static void ads7846_dev_init(void)
 172 {
 173         if (omap_request_gpio(ts_gpio) < 0) {
 174                 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
 175                 return;
 176         }
 177
 178         omap_set_gpio_direction(ts_gpio, 1);
 179
 180         omap_set_gpio_debounce(ts_gpio, 1);
 181         omap_set_gpio_debounce_time(ts_gpio, 0xa);
 182 }
 183
 184 static int ads7846_get_pendown_state(void)
 185 {
 186         return !omap_get_gpio_datain(ts_gpio);
 187 }
 188
 189 /*
 190  * This enable(1)/disable(0) the voltage for TS: uses twl4030 calls
 191  */
 192 static int ads7846_vaux_control(int vaux_cntrl)
 193 {
 194         int ret = 0;
 195
 196 #ifdef CONFIG_TWL4030_CORE
 197         /* check for return value of ldo_use: if success it returns 0 */
 198         if (vaux_cntrl == VAUX_ENABLE) {
 199                 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
 200                         ENABLE_VAUX3_DEDICATED, TWL4030_VAUX3_DEDICATED))
 201                         return -EIO;
 202                 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
 203                         ENABLE_VAUX3_DEV_GRP, TWL4030_VAUX3_DEV_GRP))
 204                         return -EIO;
 205         } else if (vaux_cntrl == VAUX_DISABLE) {
 206                 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
 207                         0x00, TWL4030_VAUX3_DEDICATED))
 208                         return -EIO;
 209                 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
 210                         0x00, TWL4030_VAUX3_DEV_GRP))
 211                         return -EIO;
 212         }
 213 #else
 214         ret = -EIO;
 215 #endif
 216         return ret;
 217 }
 218
 219 static struct ads7846_platform_data tsc2046_config __initdata = {
 220         .get_pendown_state      = ads7846_get_pendown_state,
 221         .keep_vref_on           = 1,
 222         .vaux_control           = ads7846_vaux_control,
 223 };
 224
 225
 226 static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
 227         .turbo_mode     = 0,
 228         .single_channel = 1,  /* 0: slave, 1: master */
 229 };
 230
 231 static struct spi_board_info sdp3430_spi_board_info[] __initdata = {
 232         [0] = {
 233                 /*
 234                  * TSC2046 operates at a max freqency of 2MHz, so
 235                  * operate slightly below at 1.5MHz
 236                  */
 237                 .modalias               = "ads7846",
 238                 .bus_num                = 1,
 239                 .chip_select            = 0,
 240                 .max_speed_hz           = 1500000,
 241                 .controller_data        = &tsc2046_mcspi_config,
 242                 .irq                    = 0,
 243                 .platform_data          = &tsc2046_config,
 244         },
 245 };
 246
 247 static struct platform_device sdp3430_lcd_device = {
 248         .name           = "sdp2430_lcd",
 249         .id             = -1,
 250 };
 251
 252 static struct platform_device *sdp3430_devices[] __initdata = {
 253         &sdp3430_smc91x_device,
 254         &sdp3430_kp_device,
 255         &sdp3430_lcd_device,
 256 };
 257
 258 static inline void __init sdp3430_init_smc91x(void)
 259 {
 260         int eth_cs;
 261         unsigned long cs_mem_base;
 262         int eth_gpio = 0;
 263
 264         eth_cs = SDP3430_SMC91X_CS;
 265
 266         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
 267                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
 268                 return;
 269         }
 270
 271         sdp3430_smc91x_resources[0].start = cs_mem_base + 0x0;
 272         sdp3430_smc91x_resources[0].end   = cs_mem_base + 0xf;
 273         udelay(100);
 274
 275         if (is_sil_rev_greater_than(OMAP3430_REV_ES1_0))
 276                 eth_gpio = OMAP34XX_ETHR_GPIO_IRQ_SDPV2;
 277         else
 278                 eth_gpio = OMAP34XX_ETHR_GPIO_IRQ_SDPV1;
 279
 280         sdp3430_smc91x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
 281
 282         if (omap_request_gpio(eth_gpio) < 0) {
 283                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
 284                         eth_gpio);
 285                 return;
 286         }
 287         omap_set_gpio_direction(eth_gpio, 1);
 288 }
 289
 290 static void __init omap_3430sdp_init_irq(void)
 291 {
 292         omap2_init_common_hw(hyb18m512160af6_sdrc_params);
 293         omap_init_irq();
 294         omap_gpio_init();
 295         sdp3430_init_smc91x();
 296 }
 297
 298 static struct omap_uart_config sdp3430_uart_config __initdata = {
 299         .enabled_uarts  = ((1 << 0) | (1 << 1) | (1 << 2)),
 300 };
 301
 302 static struct omap_lcd_config sdp3430_lcd_config __initdata = {
 303         .ctrl_name      = "internal",
 304 };
 305
 306 static struct omap_board_config_kernel sdp3430_config[] __initdata = {
 307         { OMAP_TAG_UART,        &sdp3430_uart_config },
 308         { OMAP_TAG_LCD,         &sdp3430_lcd_config },
 309 };
 310
 311 static int __init omap3430_i2c_init(void)
 312 {
 313         omap_register_i2c_bus(1, 2600, NULL, 0);
 314         omap_register_i2c_bus(2, 400, NULL, 0);
 315         omap_register_i2c_bus(3, 400, NULL, 0);
 316         return 0;
 317 }
 318
 319 extern void __init sdp3430_flash_init(void);
 320
 321 static void __init omap_3430sdp_init(void)
 322 {
 323         omap3430_i2c_init();
 324         platform_add_devices(sdp3430_devices, ARRAY_SIZE(sdp3430_devices));
 325         omap_board_config = sdp3430_config;
 326         omap_board_config_size = ARRAY_SIZE(sdp3430_config);
 327         if (is_sil_rev_greater_than(OMAP3430_REV_ES1_0))
 328                 ts_gpio = OMAP34XX_TS_GPIO_IRQ_SDPV2;
 329         else
 330                 ts_gpio = OMAP34XX_TS_GPIO_IRQ_SDPV1;
 331         sdp3430_spi_board_info[0].irq = OMAP_GPIO_IRQ(ts_gpio);
 332         spi_register_board_info(sdp3430_spi_board_info,
 333                                 ARRAY_SIZE(sdp3430_spi_board_info));
 334         ads7846_dev_init();
 335         sdp3430_flash_init();
 336         msecure_init();
 337         twl4030_bci_battery_init();
 338         omap_serial_init();
 339         usb_musb_init();
 340         usb_ehci_init();
 341         hsmmc_init();
 342 }
 343
 344 static void __init omap_3430sdp_map_io(void)
 345 {
 346         omap2_set_globals_343x();
 347         omap2_map_common_io();
 348 }
 349
 350 MACHINE_START(OMAP_3430SDP, "OMAP3430 3430SDP board")
 351         /* Maintainer: Syed Khasim - Texas Instruments Inc */
 352         .phys_io        = 0x48000000,
 353         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 354         .boot_params    = 0x80000100,
 355         .map_io         = omap_3430sdp_map_io,
 356         .init_irq       = omap_3430sdp_init_irq,
 357         .init_machine   = omap_3430sdp_init,
 358         .timer          = &omap_timer,
 359 MACHINE_END