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   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 #include <linux/interrupt.h>
  34 #include <linux/i2c.h>
  35
  36 #include <linux/mtd/mtd.h>
  37 #include <linux/mtd/partitions.h>
  38
  39 #include <asm/hardware.h>
  40 #include <asm/gpio.h>
  41
  42 #include <asm/mach-types.h>
  43 #include <asm/mach/arch.h>
  44 #include <asm/mach/map.h>
  45 #include <asm/mach/flash.h>
  46
  47 #include <asm/arch/usb.h>
  48 #include <asm/arch/tps65010.h>
  49 #include <asm/arch/mux.h>
  50 #include <asm/arch/tc.h>
  51 #include <asm/arch/common.h>
  52 #include <asm/arch/mcbsp.h>
  53 #include <asm/arch/omap-alsa.h>
  54
  55 static struct mtd_partition osk_partitions[] = {
  56         /* bootloader (U-Boot, etc) in first sector */
  57         {
  58               .name             = "bootloader",
  59               .offset           = 0,
  60               .size             = SZ_128K,
  61               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  62         },
  63         /* bootloader params in the next sector */
  64         {
  65               .name             = "params",
  66               .offset           = MTDPART_OFS_APPEND,
  67               .size             = SZ_128K,
  68               .mask_flags       = 0,
  69         }, {
  70               .name             = "kernel",
  71               .offset           = MTDPART_OFS_APPEND,
  72               .size             = SZ_2M,
  73               .mask_flags       = 0
  74         }, {
  75               .name             = "filesystem",
  76               .offset           = MTDPART_OFS_APPEND,
  77               .size             = MTDPART_SIZ_FULL,
  78               .mask_flags       = 0
  79         }
  80 };
  81
  82 static struct flash_platform_data osk_flash_data = {
  83         .map_name       = "cfi_probe",
  84         .width          = 2,
  85         .parts          = osk_partitions,
  86         .nr_parts       = ARRAY_SIZE(osk_partitions),
  87 };
  88
  89 static struct resource osk_flash_resource = {
  90         /* this is on CS3, wherever it's mapped */
  91         .flags          = IORESOURCE_MEM,
  92 };
  93
  94 static struct platform_device osk5912_flash_device = {
  95         .name           = "omapflash",
  96         .id             = 0,
  97         .dev            = {
  98                 .platform_data  = &osk_flash_data,
  99         },
 100         .num_resources  = 1,
 101         .resource       = &osk_flash_resource,
 102 };
 103
 104 static struct resource osk5912_smc91x_resources[] = {
 105         [0] = {
 106                 .start  = OMAP_OSK_ETHR_START,          /* Physical */
 107                 .end    = OMAP_OSK_ETHR_START + 0xf,
 108                 .flags  = IORESOURCE_MEM,
 109         },
 110         [1] = {
 111                 .start  = OMAP_GPIO_IRQ(0),
 112                 .end    = OMAP_GPIO_IRQ(0),
 113                 .flags  = IORESOURCE_IRQ,
 114         },
 115 };
 116
 117 static struct platform_device osk5912_smc91x_device = {
 118         .name           = "smc91x",
 119         .id             = -1,
 120         .num_resources  = ARRAY_SIZE(osk5912_smc91x_resources),
 121         .resource       = osk5912_smc91x_resources,
 122 };
 123
 124 static struct resource osk5912_cf_resources[] = {
 125         [0] = {
 126                 .start  = OMAP_GPIO_IRQ(62),
 127                 .end    = OMAP_GPIO_IRQ(62),
 128                 .flags  = IORESOURCE_IRQ,
 129         },
 130 };
 131
 132 static struct platform_device osk5912_cf_device = {
 133         .name           = "omap_cf",
 134         .id             = -1,
 135         .dev = {
 136                 .platform_data  = (void *) 2 /* CS2 */,
 137         },
 138         .num_resources  = ARRAY_SIZE(osk5912_cf_resources),
 139         .resource       = osk5912_cf_resources,
 140 };
 141
 142 #define DEFAULT_BITPERSAMPLE 16
 143
 144 static struct omap_mcbsp_reg_cfg mcbsp_regs = {
 145         .spcr2 = FREE | FRST | GRST | XRST | XINTM(3),
 146         .spcr1 = RINTM(3) | RRST,
 147         .rcr2 = RPHASE | RFRLEN2(OMAP_MCBSP_WORD_8) |
 148             RWDLEN2(OMAP_MCBSP_WORD_16) | RDATDLY(0),
 149         .rcr1 = RFRLEN1(OMAP_MCBSP_WORD_8) | RWDLEN1(OMAP_MCBSP_WORD_16),
 150         .xcr2 = XPHASE | XFRLEN2(OMAP_MCBSP_WORD_8) |
 151             XWDLEN2(OMAP_MCBSP_WORD_16) | XDATDLY(0) | XFIG,
 152         .xcr1 = XFRLEN1(OMAP_MCBSP_WORD_8) | XWDLEN1(OMAP_MCBSP_WORD_16),
 153         .srgr1 = FWID(DEFAULT_BITPERSAMPLE - 1),
 154         .srgr2 = GSYNC | CLKSP | FSGM | FPER(DEFAULT_BITPERSAMPLE * 2 - 1),
 155         /*.pcr0 = FSXM | FSRM | CLKXM | CLKRM | CLKXP | CLKRP,*/ /* mcbsp: master */
 156         .pcr0 = CLKXP | CLKRP,  /* mcbsp: slave */
 157 };
 158
 159 static struct omap_alsa_codec_config alsa_config = {
 160         .name                   = "OSK AIC23",
 161         .mcbsp_regs_alsa        = &mcbsp_regs,
 162         .codec_configure_dev    = NULL, // aic23_configure,
 163         .codec_set_samplerate   = NULL, // aic23_set_samplerate,
 164         .codec_clock_setup      = NULL, // aic23_clock_setup,
 165         .codec_clock_on         = NULL, // aic23_clock_on,
 166         .codec_clock_off        = NULL, // aic23_clock_off,
 167         .get_default_samplerate = NULL, // aic23_get_default_samplerate,
 168 };
 169
 170 static struct platform_device osk5912_mcbsp1_device = {
 171         .name   = "omap_alsa_mcbsp",
 172         .id     = 1,
 173         .dev = {
 174                 .platform_data  = &alsa_config,
 175         },
 176 };
 177
 178 static struct platform_device *osk5912_devices[] __initdata = {
 179         &osk5912_flash_device,
 180         &osk5912_smc91x_device,
 181         &osk5912_cf_device,
 182         &osk5912_mcbsp1_device,
 183 };
 184
 185 static struct i2c_board_info __initdata osk_i2c_board_info[] = {
 186         {
 187                 I2C_BOARD_INFO("tps65010", 0x48),
 188                 .type           = "tps65010",
 189                 .irq            = OMAP_GPIO_IRQ(OMAP_MPUIO(1)),
 190         },
 191         /* TODO when driver support is ready:
 192          *  - aic23 audio chip at 0x1a
 193          *  - on Mistral, 24c04 eeprom at 0x50
 194          *  - optionally on Mistral, ov9640 camera sensor at 0x30
 195          */
 196 };
 197
 198 static void __init osk_init_smc91x(void)
 199 {
 200         if ((omap_request_gpio(0)) < 0) {
 201                 printk("Error requesting gpio 0 for smc91x irq\n");
 202                 return;
 203         }
 204
 205         /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
 206         EMIFS_CCS(1) |= 0x3;
 207 }
 208
 209 static void __init osk_init_cf(void)
 210 {
 211         omap_cfg_reg(M7_1610_GPIO62);
 212         if ((omap_request_gpio(62)) < 0) {
 213                 printk("Error requesting gpio 62 for CF irq\n");
 214                 return;
 215         }
 216         /* the CF I/O IRQ is really active-low */
 217         set_irq_type(OMAP_GPIO_IRQ(62), IRQT_FALLING);
 218 }
 219
 220 static void __init osk_init_irq(void)
 221 {
 222         omap1_init_common_hw();
 223         omap_init_irq();
 224         omap_gpio_init();
 225         osk_init_smc91x();
 226         osk_init_cf();
 227 }
 228
 229 static struct omap_usb_config osk_usb_config __initdata = {
 230         /* has usb host connector (A) ... for development it can also
 231          * be used, with a NONSTANDARD gender-bending cable/dongle, as
 232          * a peripheral.
 233          */
 234 #ifdef  CONFIG_USB_GADGET_OMAP
 235         .register_dev   = 1,
 236         .hmc_mode       = 0,
 237 #else
 238         .register_host  = 1,
 239         .hmc_mode       = 16,
 240         .rwc            = 1,
 241 #endif
 242         .pins[0]        = 2,
 243 };
 244
 245 static struct omap_uart_config osk_uart_config __initdata = {
 246         .enabled_uarts = (1 << 0),
 247 };
 248
 249 #ifdef  CONFIG_OMAP_OSK_MISTRAL
 250 static struct omap_lcd_config osk_lcd_config __initdata = {
 251         .ctrl_name      = "internal",
 252 };
 253 #endif
 254
 255 static struct omap_board_config_kernel osk_config[] = {
 256         { OMAP_TAG_USB,           &osk_usb_config },
 257         { OMAP_TAG_UART,                &osk_uart_config },
 258 #ifdef  CONFIG_OMAP_OSK_MISTRAL
 259         { OMAP_TAG_LCD,                 &osk_lcd_config },
 260 #endif
 261 };
 262
 263 #ifdef  CONFIG_OMAP_OSK_MISTRAL
 264
 265 #include <linux/input.h>
 266 #include <linux/spi/spi.h>
 267 #include <linux/spi/ads7846.h>
 268
 269 #include <asm/arch/keypad.h>
 270
 271 static const int osk_keymap[] = {
 272         /* KEY(col, row, code) */
 273         KEY(0, 0, KEY_F1),              /* SW4 */
 274         KEY(0, 3, KEY_UP),              /* (sw2/up) */
 275         KEY(1, 1, KEY_LEFTCTRL),        /* SW5 */
 276         KEY(1, 2, KEY_LEFT),            /* (sw2/left) */
 277         KEY(2, 0, KEY_SPACE),           /* SW3 */
 278         KEY(2, 1, KEY_ESC),             /* SW6 */
 279         KEY(2, 2, KEY_DOWN),            /* (sw2/down) */
 280         KEY(3, 2, KEY_ENTER),           /* (sw2/select) */
 281         KEY(3, 3, KEY_RIGHT),           /* (sw2/right) */
 282         0
 283 };
 284
 285 static struct omap_kp_platform_data osk_kp_data = {
 286         .rows           = 8,
 287         .cols           = 8,
 288         .keymap         = (int *) osk_keymap,
 289         .keymapsize     = ARRAY_SIZE(osk_keymap),
 290         .delay          = 9,
 291 };
 292
 293 static struct resource osk5912_kp_resources[] = {
 294         [0] = {
 295                 .start  = INT_KEYBOARD,
 296                 .end    = INT_KEYBOARD,
 297                 .flags  = IORESOURCE_IRQ,
 298         },
 299 };
 300
 301 static struct platform_device osk5912_kp_device = {
 302         .name           = "omap-keypad",
 303         .id             = -1,
 304         .dev            = {
 305                 .platform_data = &osk_kp_data,
 306         },
 307         .num_resources  = ARRAY_SIZE(osk5912_kp_resources),
 308         .resource       = osk5912_kp_resources,
 309 };
 310
 311 static struct platform_device osk5912_lcd_device = {
 312         .name           = "lcd_osk",
 313         .id             = -1,
 314 };
 315
 316 static struct platform_device *mistral_devices[] __initdata = {
 317         &osk5912_kp_device,
 318         &osk5912_lcd_device,
 319 };
 320
 321 static int mistral_get_pendown_state(void)
 322 {
 323         return !omap_get_gpio_datain(4);
 324 }
 325
 326 static const struct ads7846_platform_data mistral_ts_info = {
 327         .model                  = 7846,
 328         .vref_delay_usecs       = 100,  /* internal, no capacitor */
 329         .x_plate_ohms           = 419,
 330         .y_plate_ohms           = 486,
 331         .get_pendown_state      = mistral_get_pendown_state,
 332 };
 333
 334 static struct spi_board_info __initdata mistral_boardinfo[] = { {
 335         /* MicroWire (bus 2) CS0 has an ads7846e */
 336         .modalias               = "ads7846",
 337         .platform_data          = &mistral_ts_info,
 338         .irq                    = OMAP_GPIO_IRQ(4),
 339         .max_speed_hz           = 120000 /* max sample rate at 3V */
 340                                         * 26 /* command + data + overhead */,
 341         .bus_num                = 2,
 342         .chip_select            = 0,
 343 } };
 344
 345 #ifdef  CONFIG_PM
 346 static irqreturn_t
 347 osk_mistral_wake_interrupt(int irq, void *ignored)
 348 {
 349         return IRQ_HANDLED;
 350 }
 351 #endif
 352
 353 static void __init osk_mistral_init(void)
 354 {
 355         /* NOTE:  we could actually tell if there's a Mistral board
 356          * attached, e.g. by trying to read something from the ads7846.
 357          * But this arch_init() code is too early for that, since we
 358          * can't talk to the ads or even the i2c eeprom.
 359          */
 360
 361         // omap_cfg_reg(P19_1610_GPIO6);        // BUSY
 362         omap_cfg_reg(P20_1610_GPIO4);   // PENIRQ
 363         set_irq_type(OMAP_GPIO_IRQ(4), IRQT_FALLING);
 364         spi_register_board_info(mistral_boardinfo,
 365                         ARRAY_SIZE(mistral_boardinfo));
 366
 367         /* the sideways button (SW1) is for use as a "wakeup" button */
 368         omap_cfg_reg(N15_1610_MPUIO2);
 369         if (omap_request_gpio(OMAP_MPUIO(2)) == 0) {
 370                 int ret = 0;
 371                 omap_set_gpio_direction(OMAP_MPUIO(2), 1);
 372                 set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING);
 373 #ifdef  CONFIG_PM
 374                 /* share the IRQ in case someone wants to use the
 375                  * button for more than wakeup from system sleep.
 376                  */
 377                 ret = request_irq(OMAP_GPIO_IRQ(OMAP_MPUIO(2)),
 378                                 &osk_mistral_wake_interrupt,
 379                                 IRQF_SHARED, "mistral_wakeup",
 380                                 &osk_mistral_wake_interrupt);
 381                 if (ret != 0) {
 382                         omap_free_gpio(OMAP_MPUIO(2));
 383                         printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
 384                                 ret);
 385                 } else
 386                         enable_irq_wake(OMAP_GPIO_IRQ(OMAP_MPUIO(2)));
 387 #endif
 388         } else
 389                 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
 390
 391         platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
 392 }
 393 #else
 394 static void __init osk_mistral_init(void) { }
 395 #endif
 396
 397 #define EMIFS_CS3_VAL   (0x88013141)
 398
 399 static void __init osk_init(void)
 400 {
 401         /* Workaround for wrong CS3 (NOR flash) timing
 402          * There are some U-Boot versions out there which configure
 403          * wrong CS3 memory timings. This mainly leads to CRC
 404          * or similar errors if you use NOR flash (e.g. with JFFS2)
 405          */
 406         if (EMIFS_CCS(3) != EMIFS_CS3_VAL)
 407                 EMIFS_CCS(3) = EMIFS_CS3_VAL;
 408
 409         osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
 410         osk_flash_resource.end += SZ_32M - 1;
 411         platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
 412         omap_board_config = osk_config;
 413         omap_board_config_size = ARRAY_SIZE(osk_config);
 414         USB_TRANSCEIVER_CTRL_REG |= (3 << 1);
 415
 416         /* irq for tps65010 chip */
 417         /* bootloader effectively does:  omap_cfg_reg(U19_1610_MPUIO1); */
 418         if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
 419                 gpio_direction_input(OMAP_MPUIO(1));
 420
 421         i2c_register_board_info(1, osk_i2c_board_info,
 422                         ARRAY_SIZE(osk_i2c_board_info));
 423
 424         omap_serial_init();
 425         osk_mistral_init();
 426 }
 427
 428 static void __init osk_map_io(void)
 429 {
 430         omap1_map_common_io();
 431 }
 432
 433 #ifdef CONFIG_TPS65010
 434 static int __init osk_tps_init(void)
 435 {
 436         if (!machine_is_omap_osk())
 437                 return 0;
 438
 439         /* Let LED1 (D9) blink */
 440         tps65010_set_led(LED1, BLINK);
 441
 442         /* Disable LED 2 (D2) */
 443         tps65010_set_led(LED2, OFF);
 444
 445         /* Set GPIO 1 HIGH to disable VBUS power supply;
 446          * OHCI driver powers it up/down as needed.
 447          */
 448         tps65010_set_gpio_out_value(GPIO1, HIGH);
 449
 450         /* Set GPIO 2 low to turn on LED D3 */
 451         tps65010_set_gpio_out_value(GPIO2, HIGH);
 452
 453         /* Set GPIO 3 low to take ethernet out of reset */
 454         tps65010_set_gpio_out_value(GPIO3, LOW);
 455
 456         /* gpio4 for VDD_DSP */
 457         /* FIXME send power to DSP iff it's configured */
 458
 459         /* Enable LOW_PWR */
 460         tps65010_set_low_pwr(ON);
 461
 462         /* Switch VLDO2 to 3.0V for AIC23 */
 463         tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
 464                         | TPS_LDO1_ENABLE);
 465
 466         return 0;
 467 }
 468 fs_initcall(osk_tps_init);
 469 #endif
 470
 471 MACHINE_START(OMAP_OSK, "TI-OSK")
 472         /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
 473         .phys_io        = 0xfff00000,
 474         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 475         .boot_params    = 0x10000100,
 476         .map_io         = osk_map_io,
 477         .init_irq       = osk_init_irq,
 478         .init_machine   = osk_init,
 479         .timer          = &omap_timer,
 480 MACHINE_END