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