arch/arm/mach-omap1/board-osk.c

   1 /*
   2  * linux/arch/arm/mach-omap1/board-osk.c
   3  *
   4  * Board specific init for OMAP5912 OSK
   5  *
   6  * Written by Dirk Behme <dirk.behme@de.bosch.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by the
  10  * Free Software Foundation; either version 2 of the License, or (at your
  11  * option) any later version.
  12  *
  13  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  14  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  15  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
  16  * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  17  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  18  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  19  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  20  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  22  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  23  *
  24  * You should have received a copy of the  GNU General Public License along
  25  * with this program; if not, write  to the Free Software Foundation, Inc.,
  26  * 675 Mass Ave, Cambridge, MA 02139, USA.
  27  */
  28
  29 #include <linux/kernel.h>
  30 #include <linux/init.h>
  31 #include <linux/platform_device.h>
  32 #include <linux/irq.h>
  33
  34 #include <linux/mtd/mtd.h>
  35 #include <linux/mtd/partitions.h>
  36
  37 #include <asm/hardware.h>
  38 #include <asm/mach-types.h>
  39 #include <asm/mach/arch.h>
  40 #include <asm/mach/map.h>
  41 #include <asm/mach/flash.h>
  42
  43 #include <asm/arch/gpio.h>
  44 #include <asm/arch/usb.h>
  45 #include <asm/arch/mux.h>
  46 #include <asm/arch/tc.h>
  47 #include <asm/arch/common.h>
  48 #include <asm/arch/mcbsp.h>
  49 #include <asm/arch/omap-alsa.h>
  50
  51 static struct mtd_partition osk_partitions[] = {
  52         /* bootloader (U-Boot, etc) in first sector */
  53         {
  54               .name             = "bootloader",
  55               .offset           = 0,
  56               .size             = SZ_128K,
  57               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  58         },
  59         /* bootloader params in the next sector */
  60         {
  61               .name             = "params",
  62               .offset           = MTDPART_OFS_APPEND,
  63               .size             = SZ_128K,
  64               .mask_flags       = 0,
  65         }, {
  66               .name             = "kernel",
  67               .offset           = MTDPART_OFS_APPEND,
  68               .size             = SZ_2M,
  69               .mask_flags       = 0
  70         }, {
  71               .name             = "filesystem",
  72               .offset           = MTDPART_OFS_APPEND,
  73               .size             = MTDPART_SIZ_FULL,
  74               .mask_flags       = 0
  75         }
  76 };
  77
  78 static struct flash_platform_data osk_flash_data = {
  79         .map_name       = "cfi_probe",
  80         .width          = 2,
  81         .parts          = osk_partitions,
  82         .nr_parts       = ARRAY_SIZE(osk_partitions),
  83 };
  84
  85 static struct resource osk_flash_resource = {
  86         /* this is on CS3, wherever it's mapped */
  87         .flags          = IORESOURCE_MEM,
  88 };
  89
  90 static struct platform_device osk5912_flash_device = {
  91         .name           = "omapflash",
  92         .id             = 0,
  93         .dev            = {
  94                 .platform_data  = &osk_flash_data,
  95         },
  96         .num_resources  = 1,
  97         .resource       = &osk_flash_resource,
  98 };
  99
 100 static struct resource osk5912_smc91x_resources[] = {
 101         [0] = {
 102                 .start  = OMAP_OSK_ETHR_START,          /* Physical */
 103                 .end    = OMAP_OSK_ETHR_START + 0xf,
 104                 .flags  = IORESOURCE_MEM,
 105         },
 106         [1] = {
 107                 .start  = OMAP_GPIO_IRQ(0),
 108                 .end    = OMAP_GPIO_IRQ(0),
 109                 .flags  = IORESOURCE_IRQ,
 110         },
 111 };
 112
 113 static struct platform_device osk5912_smc91x_device = {
 114         .name           = "smc91x",
 115         .id             = -1,
 116         .num_resources  = ARRAY_SIZE(osk5912_smc91x_resources),
 117         .resource       = osk5912_smc91x_resources,
 118 };
 119
 120 static struct resource osk5912_cf_resources[] = {
 121         [0] = {
 122                 .start  = OMAP_GPIO_IRQ(62),
 123                 .end    = OMAP_GPIO_IRQ(62),
 124                 .flags  = IORESOURCE_IRQ,
 125         },
 126 };
 127
 128 static struct platform_device osk5912_cf_device = {
 129         .name           = "omap_cf",
 130         .id             = -1,
 131         .dev = {
 132                 .platform_data  = (void *) 2 /* CS2 */,
 133         },
 134         .num_resources  = ARRAY_SIZE(osk5912_cf_resources),
 135         .resource       = osk5912_cf_resources,
 136 };
 137
 138 #define DEFAULT_BITPERSAMPLE 16
 139
 140 static struct omap_mcbsp_reg_cfg mcbsp_regs = {
 141         .spcr2 = FREE | FRST | GRST | XRST | XINTM(3),
 142         .spcr1 = RINTM(3) | RRST,
 143         .rcr2 = RPHASE | RFRLEN2(OMAP_MCBSP_WORD_8) |
 144             RWDLEN2(OMAP_MCBSP_WORD_16) | RDATDLY(0),
 145         .rcr1 = RFRLEN1(OMAP_MCBSP_WORD_8) | RWDLEN1(OMAP_MCBSP_WORD_16),
 146         .xcr2 = XPHASE | XFRLEN2(OMAP_MCBSP_WORD_8) |
 147             XWDLEN2(OMAP_MCBSP_WORD_16) | XDATDLY(0) | XFIG,
 148         .xcr1 = XFRLEN1(OMAP_MCBSP_WORD_8) | XWDLEN1(OMAP_MCBSP_WORD_16),
 149         .srgr1 = FWID(DEFAULT_BITPERSAMPLE - 1),
 150         .srgr2 = GSYNC | CLKSP | FSGM | FPER(DEFAULT_BITPERSAMPLE * 2 - 1),
 151         /*.pcr0 = FSXM | FSRM | CLKXM | CLKRM | CLKXP | CLKRP,*/ /* mcbsp: master */
 152         .pcr0 = CLKXP | CLKRP,  /* mcbsp: slave */
 153 };
 154
 155 static struct omap_alsa_codec_config alsa_config = {
 156         .name                   = "OSK AIC23",
 157         .mcbsp_regs_alsa        = &mcbsp_regs,
 158         .codec_configure_dev    = NULL, // aic23_configure,
 159         .codec_set_samplerate   = NULL, // aic23_set_samplerate,
 160         .codec_clock_setup      = NULL, // aic23_clock_setup,
 161         .codec_clock_on         = NULL, // aic23_clock_on,
 162         .codec_clock_off        = NULL, // aic23_clock_off,
 163         .get_default_samplerate = NULL, // aic23_get_default_samplerate,
 164 };
 165
 166 static struct platform_device osk5912_mcbsp1_device = {
 167         .name   = "omap_alsa_mcbsp",
 168         .id     = 1,
 169         .dev = {
 170                 .platform_data  = &alsa_config,
 171         },
 172 };
 173
 174 static struct platform_device *osk5912_devices[] __initdata = {
 175         &osk5912_flash_device,
 176         &osk5912_smc91x_device,
 177         &osk5912_cf_device,
 178         &osk5912_mcbsp1_device,
 179 };
 180
 181 static void __init osk_init_smc91x(void)
 182 {
 183         if ((omap_request_gpio(0)) < 0) {
 184                 printk("Error requesting gpio 0 for smc91x irq\n");
 185                 return;
 186         }
 187
 188         /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
 189         EMIFS_CCS(1) |= 0x3;
 190 }
 191
 192 static void __init osk_init_cf(void)
 193 {
 194         omap_cfg_reg(M7_1610_GPIO62);
 195         if ((omap_request_gpio(62)) < 0) {
 196                 printk("Error requesting gpio 62 for CF irq\n");
 197                 return;
 198         }
 199         /* the CF I/O IRQ is really active-low */
 200         set_irq_type(OMAP_GPIO_IRQ(62), IRQT_FALLING);
 201 }
 202
 203 static void __init osk_init_irq(void)
 204 {
 205         omap1_init_common_hw();
 206         omap_init_irq();
 207         omap_gpio_init();
 208         osk_init_smc91x();
 209         osk_init_cf();
 210 }
 211
 212 static struct omap_usb_config osk_usb_config __initdata = {
 213         /* has usb host connector (A) ... for development it can also
 214          * be used, with a NONSTANDARD gender-bending cable/dongle, as
 215          * a peripheral.
 216          */
 217 #ifdef  CONFIG_USB_GADGET_OMAP
 218         .register_dev   = 1,
 219         .hmc_mode       = 0,
 220 #else
 221         .register_host  = 1,
 222         .hmc_mode       = 16,
 223         .rwc            = 1,
 224 #endif
 225         .pins[0]        = 2,
 226 };
 227
 228 static struct omap_uart_config osk_uart_config __initdata = {
 229         .enabled_uarts = (1 << 0),
 230 };
 231
 232 #ifdef  CONFIG_OMAP_OSK_MISTRAL
 233 static struct omap_lcd_config osk_lcd_config __initdata = {
 234         .ctrl_name      = "internal",
 235 };
 236 #endif
 237
 238 static struct omap_board_config_kernel osk_config[] = {
 239         { OMAP_TAG_USB,           &osk_usb_config },
 240         { OMAP_TAG_UART,                &osk_uart_config },
 241 #ifdef  CONFIG_OMAP_OSK_MISTRAL
 242         { OMAP_TAG_LCD,                 &osk_lcd_config },
 243 #endif
 244 };
 245
 246 #ifdef  CONFIG_OMAP_OSK_MISTRAL
 247
 248 #include <linux/input.h>
 249 #include <linux/spi/spi.h>
 250 #include <linux/spi/ads7846.h>
 251
 252 #include <asm/arch/keypad.h>
 253
 254 static const int osk_keymap[] = {
 255         /* KEY(col, row, code) */
 256         KEY(0, 0, KEY_F1),              /* SW4 */
 257         KEY(0, 3, KEY_UP),              /* (sw2/up) */
 258         KEY(1, 1, KEY_LEFTCTRL),        /* SW5 */
 259         KEY(1, 2, KEY_LEFT),            /* (sw2/left) */
 260         KEY(2, 0, KEY_SPACE),           /* SW3 */
 261         KEY(2, 1, KEY_ESC),             /* SW6 */
 262         KEY(2, 2, KEY_DOWN),            /* (sw2/down) */
 263         KEY(3, 2, KEY_ENTER),           /* (sw2/select) */
 264         KEY(3, 3, KEY_RIGHT),           /* (sw2/right) */
 265         0
 266 };
 267
 268 static struct omap_kp_platform_data osk_kp_data = {
 269         .rows   = 8,
 270         .cols   = 8,
 271         .keymap = (int *) osk_keymap,
 272 };
 273
 274 static struct resource osk5912_kp_resources[] = {
 275         [0] = {
 276                 .start  = INT_KEYBOARD,
 277                 .end    = INT_KEYBOARD,
 278                 .flags  = IORESOURCE_IRQ,
 279         },
 280 };
 281
 282 static struct platform_device osk5912_kp_device = {
 283         .name           = "omap-keypad",
 284         .id             = -1,
 285         .dev            = {
 286                 .platform_data = &osk_kp_data,
 287         },
 288         .num_resources  = ARRAY_SIZE(osk5912_kp_resources),
 289         .resource       = osk5912_kp_resources,
 290 };
 291
 292 static struct platform_device osk5912_lcd_device = {
 293         .name           = "lcd_osk",
 294         .id             = -1,
 295 };
 296
 297 static struct platform_device *mistral_devices[] __initdata = {
 298         &osk5912_kp_device,
 299         &osk5912_lcd_device,
 300 };
 301
 302 static int mistral_get_pendown_state(void)
 303 {
 304         return !omap_get_gpio_datain(4);
 305 }
 306
 307 static const struct ads7846_platform_data mistral_ts_info = {
 308         .model                  = 7846,
 309         .vref_delay_usecs       = 100,  /* internal, no capacitor */
 310         .x_plate_ohms           = 419,
 311         .y_plate_ohms           = 486,
 312         .get_pendown_state      = mistral_get_pendown_state,
 313 };
 314
 315 static struct spi_board_info __initdata mistral_boardinfo[] = { {
 316         /* MicroWire (bus 2) CS0 has an ads7846e */
 317         .modalias               = "ads7846",
 318         .platform_data          = &mistral_ts_info,
 319         .irq                    = OMAP_GPIO_IRQ(4),
 320         .max_speed_hz           = 120000 /* max sample rate at 3V */
 321                                         * 26 /* command + data + overhead */,
 322         .bus_num                = 2,
 323         .chip_select            = 0,
 324 } };
 325
 326 #ifdef  CONFIG_PM
 327 static irqreturn_t
 328 osk_mistral_wake_interrupt(int irq, void *ignored, struct pt_regs *regs)
 329 {
 330         return IRQ_HANDLED;
 331 }
 332 #endif
 333
 334 static void __init osk_mistral_init(void)
 335 {
 336         /* NOTE:  we could actually tell if there's a Mistral board
 337          * attached, e.g. by trying to read something from the ads7846.
 338          * But this arch_init() code is too early for that, since we
 339          * can't talk to the ads or even the i2c eeprom.
 340          */
 341
 342         // omap_cfg_reg(P19_1610_GPIO6);        // BUSY
 343         omap_cfg_reg(P20_1610_GPIO4);   // PENIRQ
 344         set_irq_type(OMAP_GPIO_IRQ(4), IRQT_FALLING);
 345         spi_register_board_info(mistral_boardinfo,
 346                         ARRAY_SIZE(mistral_boardinfo));
 347
 348         /* the sideways button (SW1) is for use as a "wakeup" button */
 349         omap_cfg_reg(N15_1610_MPUIO2);
 350         if (omap_request_gpio(OMAP_MPUIO(2)) == 0) {
 351                 int ret = 0;
 352                 omap_set_gpio_direction(OMAP_MPUIO(2), 1);
 353                 set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING);
 354 #ifdef  CONFIG_PM
 355                 /* share the IRQ in case someone wants to use the
 356                  * button for more than wakeup from system sleep.
 357                  */
 358                 ret = request_irq(OMAP_GPIO_IRQ(OMAP_MPUIO(2)),
 359                                 &osk_mistral_wake_interrupt,
 360                                 SA_SHIRQ, "mistral_wakeup",
 361                                 &osk_mistral_wake_interrupt);
 362                 if (ret != 0) {
 363                         omap_free_gpio(OMAP_MPUIO(2));
 364                         printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
 365                                 ret);
 366                 } else
 367                         enable_irq_wake(OMAP_GPIO_IRQ(OMAP_MPUIO(2)));
 368 #endif
 369         } else
 370                 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
 371
 372         platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
 373 }
 374 #else
 375 static void __init osk_mistral_init(void) { }
 376 #endif
 377
 378 #define EMIFS_CS3_VAL   (0x88013141)
 379
 380 static void __init osk_init(void)
 381 {
 382         /* Workaround for wrong CS3 (NOR flash) timing
 383          * There are some U-Boot versions out there which configure
 384          * wrong CS3 memory timings. This mainly leads to CRC
 385          * or similiar errors if you use NOR flash (e.g. with JFFS2)
 386          */
 387         if (EMIFS_CCS(3) != EMIFS_CS3_VAL)
 388                 EMIFS_CCS(3) = EMIFS_CS3_VAL;
 389
 390         osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
 391         osk_flash_resource.end += SZ_32M - 1;
 392         platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
 393         omap_board_config = osk_config;
 394         omap_board_config_size = ARRAY_SIZE(osk_config);
 395         USB_TRANSCEIVER_CTRL_REG |= (3 << 1);
 396
 397         omap_serial_init();
 398         osk_mistral_init();
 399 }
 400
 401 static void __init osk_map_io(void)
 402 {
 403         omap1_map_common_io();
 404 }
 405
 406 MACHINE_START(OMAP_OSK, "TI-OSK")
 407         /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
 408         .phys_io        = 0xfff00000,
 409         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 410         .boot_params    = 0x10000100,
 411         .map_io         = osk_map_io,
 412         .init_irq       = osk_init_irq,
 413         .init_machine   = osk_init,
 414         .timer          = &omap_timer,
 415 MACHINE_END