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/interrupt.h>
  33
  34 #include <linux/mtd/mtd.h>
  35 #include <linux/mtd/partitions.h>
  36 #include <linux/input.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/keypad.h>
  49 #include <asm/arch/common.h>
  50 #include <asm/arch/mcbsp.h>
  51 #include <asm/arch/omap-alsa.h>
  52
  53 static int osk_keymap[] = {
  54         KEY(0, 0, KEY_F1),
  55         KEY(0, 3, KEY_UP),
  56         KEY(1, 1, KEY_LEFTCTRL),
  57         KEY(1, 2, KEY_LEFT),
  58         KEY(2, 0, KEY_SPACE),
  59         KEY(2, 1, KEY_ESC),
  60         KEY(2, 2, KEY_DOWN),
  61         KEY(3, 2, KEY_ENTER),
  62         KEY(3, 3, KEY_RIGHT),
  63         0
  64 };
  65
  66
  67 static struct mtd_partition osk_partitions[] = {
  68         /* bootloader (U-Boot, etc) in first sector */
  69         {
  70               .name             = "bootloader",
  71               .offset           = 0,
  72               .size             = SZ_128K,
  73               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  74         },
  75         /* bootloader params in the next sector */
  76         {
  77               .name             = "params",
  78               .offset           = MTDPART_OFS_APPEND,
  79               .size             = SZ_128K,
  80               .mask_flags       = 0,
  81         }, {
  82               .name             = "kernel",
  83               .offset           = MTDPART_OFS_APPEND,
  84               .size             = SZ_2M,
  85               .mask_flags       = 0
  86         }, {
  87               .name             = "filesystem",
  88               .offset           = MTDPART_OFS_APPEND,
  89               .size             = MTDPART_SIZ_FULL,
  90               .mask_flags       = 0
  91         }
  92 };
  93
  94 static struct flash_platform_data osk_flash_data = {
  95         .map_name       = "cfi_probe",
  96         .width          = 2,
  97         .parts          = osk_partitions,
  98         .nr_parts       = ARRAY_SIZE(osk_partitions),
  99 };
 100
 101 static struct resource osk_flash_resource = {
 102         /* this is on CS3, wherever it's mapped */
 103         .flags          = IORESOURCE_MEM,
 104 };
 105
 106 static struct platform_device osk5912_flash_device = {
 107         .name           = "omapflash",
 108         .id             = 0,
 109         .dev            = {
 110                 .platform_data  = &osk_flash_data,
 111         },
 112         .num_resources  = 1,
 113         .resource       = &osk_flash_resource,
 114 };
 115
 116 static struct resource osk5912_smc91x_resources[] = {
 117         [0] = {
 118                 .start  = OMAP_OSK_ETHR_START,          /* Physical */
 119                 .end    = OMAP_OSK_ETHR_START + 0xf,
 120                 .flags  = IORESOURCE_MEM,
 121         },
 122         [1] = {
 123                 .start  = OMAP_GPIO_IRQ(0),
 124                 .end    = OMAP_GPIO_IRQ(0),
 125                 .flags  = IORESOURCE_IRQ,
 126         },
 127 };
 128
 129 static struct platform_device osk5912_smc91x_device = {
 130         .name           = "smc91x",
 131         .id             = -1,
 132         .num_resources  = ARRAY_SIZE(osk5912_smc91x_resources),
 133         .resource       = osk5912_smc91x_resources,
 134 };
 135
 136 static struct resource osk5912_cf_resources[] = {
 137         [0] = {
 138                 .start  = OMAP_GPIO_IRQ(62),
 139                 .end    = OMAP_GPIO_IRQ(62),
 140                 .flags  = IORESOURCE_IRQ,
 141         },
 142 };
 143
 144 static struct platform_device osk5912_cf_device = {
 145         .name           = "omap_cf",
 146         .id             = -1,
 147         .dev = {
 148                 .platform_data  = (void *) 2 /* CS2 */,
 149         },
 150         .num_resources  = ARRAY_SIZE(osk5912_cf_resources),
 151         .resource       = osk5912_cf_resources,
 152 };
 153
 154 #define DEFAULT_BITPERSAMPLE 16
 155
 156 static struct omap_mcbsp_reg_cfg mcbsp_regs = {
 157         .spcr2 = FREE | FRST | GRST | XRST | XINTM(3),
 158         .spcr1 = RINTM(3) | RRST,
 159         .rcr2 = RPHASE | RFRLEN2(OMAP_MCBSP_WORD_8) |
 160             RWDLEN2(OMAP_MCBSP_WORD_16) | RDATDLY(0),
 161         .rcr1 = RFRLEN1(OMAP_MCBSP_WORD_8) | RWDLEN1(OMAP_MCBSP_WORD_16),
 162         .xcr2 = XPHASE | XFRLEN2(OMAP_MCBSP_WORD_8) |
 163             XWDLEN2(OMAP_MCBSP_WORD_16) | XDATDLY(0) | XFIG,
 164         .xcr1 = XFRLEN1(OMAP_MCBSP_WORD_8) | XWDLEN1(OMAP_MCBSP_WORD_16),
 165         .srgr1 = FWID(DEFAULT_BITPERSAMPLE - 1),
 166         .srgr2 = GSYNC | CLKSP | FSGM | FPER(DEFAULT_BITPERSAMPLE * 2 - 1),
 167         /*.pcr0 = FSXM | FSRM | CLKXM | CLKRM | CLKXP | CLKRP,*/ /* mcbsp: master */
 168         .pcr0 = CLKXP | CLKRP,  /* mcbsp: slave */
 169 };
 170
 171 static struct omap_alsa_codec_config alsa_config = {
 172         .name                   = "OSK AIC23",
 173         .mcbsp_regs_alsa        = &mcbsp_regs,
 174         .codec_configure_dev    = NULL, // aic23_configure,
 175         .codec_set_samplerate   = NULL, // aic23_set_samplerate,
 176         .codec_clock_setup      = NULL, // aic23_clock_setup,
 177         .codec_clock_on         = NULL, // aic23_clock_on,
 178         .codec_clock_off        = NULL, // aic23_clock_off,
 179         .get_default_samplerate = NULL, // aic23_get_default_samplerate,
 180 };
 181
 182 static struct platform_device osk5912_mcbsp1_device = {
 183         .name   = "omap_alsa_mcbsp",
 184         .id     = 1,
 185         .dev = {
 186                 .platform_data  = &alsa_config,
 187         },
 188 };
 189
 190 static struct resource osk5912_kp_resources[] = {
 191         [0] = {
 192                 .start  = INT_KEYBOARD,
 193                 .end    = INT_KEYBOARD,
 194                 .flags  = IORESOURCE_IRQ,
 195         },
 196 };
 197
 198 static struct omap_kp_platform_data osk_kp_data = {
 199         .rows   = 8,
 200         .cols   = 8,
 201         .keymap = osk_keymap,
 202 };
 203
 204 static struct platform_device osk5912_kp_device = {
 205         .name           = "omap-keypad",
 206         .id             = -1,
 207         .dev            = {
 208                 .platform_data = &osk_kp_data,
 209         },
 210         .num_resources  = ARRAY_SIZE(osk5912_kp_resources),
 211         .resource       = osk5912_kp_resources,
 212 };
 213
 214 static struct platform_device osk5912_lcd_device = {
 215         .name           = "lcd_osk",
 216         .id             = -1,
 217 };
 218
 219 static struct platform_device *osk5912_devices[] __initdata = {
 220         &osk5912_flash_device,
 221         &osk5912_smc91x_device,
 222         &osk5912_cf_device,
 223         &osk5912_mcbsp1_device,
 224         &osk5912_kp_device,
 225         &osk5912_lcd_device,
 226 };
 227
 228 static void __init osk_init_smc91x(void)
 229 {
 230         if ((omap_request_gpio(0)) < 0) {
 231                 printk("Error requesting gpio 0 for smc91x irq\n");
 232                 return;
 233         }
 234
 235         /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
 236         EMIFS_CCS(1) |= 0x3;
 237 }
 238
 239 static void __init osk_init_cf(void)
 240 {
 241         omap_cfg_reg(M7_1610_GPIO62);
 242         if ((omap_request_gpio(62)) < 0) {
 243                 printk("Error requesting gpio 62 for CF irq\n");
 244                 return;
 245         }
 246         /* the CF I/O IRQ is really active-low */
 247         set_irq_type(OMAP_GPIO_IRQ(62), IRQT_FALLING);
 248 }
 249
 250 static void __init osk_init_irq(void)
 251 {
 252         omap1_init_common_hw();
 253         omap_init_irq();
 254         omap_gpio_init();
 255         osk_init_smc91x();
 256         osk_init_cf();
 257 }
 258
 259 static struct omap_usb_config osk_usb_config __initdata = {
 260         /* has usb host connector (A) ... for development it can also
 261          * be used, with a NONSTANDARD gender-bending cable/dongle, as
 262          * a peripheral.
 263          */
 264 #ifdef  CONFIG_USB_GADGET_OMAP
 265         .register_dev   = 1,
 266         .hmc_mode       = 0,
 267 #else
 268         .register_host  = 1,
 269         .hmc_mode       = 16,
 270         .rwc            = 1,
 271 #endif
 272         .pins[0]        = 2,
 273 };
 274
 275 static struct omap_uart_config osk_uart_config __initdata = {
 276         .enabled_uarts = (1 << 0),
 277 };
 278
 279 static struct omap_lcd_config osk_lcd_config __initdata = {
 280         .ctrl_name      = "internal",
 281 };
 282
 283 static struct omap_board_config_kernel osk_config[] = {
 284         { OMAP_TAG_USB,           &osk_usb_config },
 285         { OMAP_TAG_UART,                &osk_uart_config },
 286         { OMAP_TAG_LCD,                 &osk_lcd_config },
 287 };
 288
 289 #ifdef  CONFIG_OMAP_OSK_MISTRAL
 290
 291 #ifdef  CONFIG_PM
 292 static irqreturn_t
 293 osk_mistral_wake_interrupt(int irq, void *ignored, struct pt_regs *regs)
 294 {
 295         return IRQ_HANDLED;
 296 }
 297 #endif
 298
 299 static void __init osk_mistral_init(void)
 300 {
 301         /* FIXME here's where to feed in framebuffer, touchpad, and
 302          * keyboard setup ...  not in the drivers for those devices!
 303          *
 304          * NOTE:  we could actually tell if there's a Mistral board
 305          * attached, e.g. by trying to read something from the ads7846.
 306          * But this is too early for that...
 307          */
 308
 309         /* the sideways button (SW1) is for use as a "wakeup" button */
 310         omap_cfg_reg(N15_1610_MPUIO2);
 311         if (omap_request_gpio(OMAP_MPUIO(2)) == 0) {
 312                 int ret = 0;
 313                 omap_set_gpio_direction(OMAP_MPUIO(2), 1);
 314                 set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING);
 315 #ifdef  CONFIG_PM
 316                 /* share the IRQ in case someone wants to use the
 317                  * button for more than wakeup from system sleep.
 318                  */
 319                 ret = request_irq(OMAP_GPIO_IRQ(OMAP_MPUIO(2)),
 320                                 &osk_mistral_wake_interrupt,
 321                                 SA_SHIRQ, "mistral_wakeup",
 322                                 &osk_mistral_wake_interrupt);
 323                 if (ret != 0) {
 324                         omap_free_gpio(OMAP_MPUIO(2));
 325                         printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
 326                                 ret);
 327                 } else
 328                         enable_irq_wake(OMAP_GPIO_IRQ(OMAP_MPUIO(2)));
 329 #endif
 330         } else
 331                 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
 332 }
 333 #else
 334 static void __init osk_mistral_init(void) { }
 335 #endif
 336
 337 #define EMIFS_CS3_VAL   (0x88013141)
 338
 339 static void __init osk_init(void)
 340 {
 341         /* Workaround for wrong CS3 (NOR flash) timing
 342          * There are some U-Boot versions out there which configure
 343          * wrong CS3 memory timings. This mainly leads to CRC
 344          * or similiar errors if you use NOR flash (e.g. with JFFS2)
 345          */
 346         if (EMIFS_CCS(3) != EMIFS_CS3_VAL)
 347                 EMIFS_CCS(3) = EMIFS_CS3_VAL;
 348
 349         osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
 350         osk_flash_resource.end += SZ_32M - 1;
 351         platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
 352         omap_board_config = osk_config;
 353         omap_board_config_size = ARRAY_SIZE(osk_config);
 354         USB_TRANSCEIVER_CTRL_REG |= (3 << 1);
 355
 356         omap_serial_init();
 357         osk_mistral_init();
 358 }
 359
 360 static void __init osk_map_io(void)
 361 {
 362         omap1_map_common_io();
 363 }
 364
 365 MACHINE_START(OMAP_OSK, "TI-OSK")
 366         /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
 367         .phys_io        = 0xfff00000,
 368         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 369         .boot_params    = 0x10000100,
 370         .map_io         = osk_map_io,
 371         .init_irq       = osk_init_irq,
 372         .init_machine   = osk_init,
 373         .timer          = &omap_timer,
 374 MACHINE_END