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