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
  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
  49 static struct mtd_partition osk_partitions[] = {
  50         /* bootloader (U-Boot, etc) in first sector */
  51         {
  52               .name             = "bootloader",
  53               .offset           = 0,
  54               .size             = SZ_128K,
  55               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  56         },
  57         /* bootloader params in the next sector */
  58         {
  59               .name             = "params",
  60               .offset           = MTDPART_OFS_APPEND,
  61               .size             = SZ_128K,
  62               .mask_flags       = 0,
  63         }, {
  64               .name             = "kernel",
  65               .offset           = MTDPART_OFS_APPEND,
  66               .size             = SZ_2M,
  67               .mask_flags       = 0
  68         }, {
  69               .name             = "filesystem",
  70               .offset           = MTDPART_OFS_APPEND,
  71               .size             = MTDPART_SIZ_FULL,
  72               .mask_flags       = 0
  73         }
  74 };
  75
  76 static struct flash_platform_data osk_flash_data = {
  77         .map_name       = "cfi_probe",
  78         .width          = 2,
  79         .parts          = osk_partitions,
  80         .nr_parts       = ARRAY_SIZE(osk_partitions),
  81 };
  82
  83 static struct resource osk_flash_resource = {
  84         /* this is on CS3, wherever it's mapped */
  85         .flags          = IORESOURCE_MEM,
  86 };
  87
  88 static struct platform_device osk5912_flash_device = {
  89         .name           = "omapflash",
  90         .id             = 0,
  91         .dev            = {
  92                 .platform_data  = &osk_flash_data,
  93         },
  94         .num_resources  = 1,
  95         .resource       = &osk_flash_resource,
  96 };
  97
  98 static struct resource osk5912_smc91x_resources[] = {
  99         [0] = {
 100                 .start  = OMAP_OSK_ETHR_START,          /* Physical */
 101                 .end    = OMAP_OSK_ETHR_START + 0xf,
 102                 .flags  = IORESOURCE_MEM,
 103         },
 104         [1] = {
 105                 .start  = OMAP_GPIO_IRQ(0),
 106                 .end    = OMAP_GPIO_IRQ(0),
 107                 .flags  = IORESOURCE_IRQ,
 108         },
 109 };
 110
 111 static struct platform_device osk5912_smc91x_device = {
 112         .name           = "smc91x",
 113         .id             = -1,
 114         .num_resources  = ARRAY_SIZE(osk5912_smc91x_resources),
 115         .resource       = osk5912_smc91x_resources,
 116 };
 117
 118 static struct resource osk5912_cf_resources[] = {
 119         [0] = {
 120                 .start  = OMAP_GPIO_IRQ(62),
 121                 .end    = OMAP_GPIO_IRQ(62),
 122                 .flags  = IORESOURCE_IRQ,
 123         },
 124 };
 125
 126 static struct platform_device osk5912_cf_device = {
 127         .name           = "omap_cf",
 128         .id             = -1,
 129         .dev = {
 130                 .platform_data  = (void *) 2 /* CS2 */,
 131         },
 132         .num_resources  = ARRAY_SIZE(osk5912_cf_resources),
 133         .resource       = osk5912_cf_resources,
 134 };
 135
 136 static struct platform_device osk5912_mcbsp1_device = {
 137         .name           = "omap_mcbsp",
 138         .id             = 1,
 139 };
 140
 141 static struct platform_device *osk5912_devices[] __initdata = {
 142         &osk5912_flash_device,
 143         &osk5912_smc91x_device,
 144         &osk5912_cf_device,
 145         &osk5912_mcbsp1_device,
 146 };
 147
 148 static void __init osk_init_smc91x(void)
 149 {
 150         if ((omap_request_gpio(0)) < 0) {
 151                 printk("Error requesting gpio 0 for smc91x irq\n");
 152                 return;
 153         }
 154
 155         /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
 156         EMIFS_CCS(1) |= 0x3;
 157 }
 158
 159 static void __init osk_init_cf(void)
 160 {
 161         omap_cfg_reg(M7_1610_GPIO62);
 162         if ((omap_request_gpio(62)) < 0) {
 163                 printk("Error requesting gpio 62 for CF irq\n");
 164                 return;
 165         }
 166         /* the CF I/O IRQ is really active-low */
 167         set_irq_type(OMAP_GPIO_IRQ(62), IRQT_FALLING);
 168 }
 169
 170 static void __init osk_init_irq(void)
 171 {
 172         omap1_init_common_hw();
 173         omap_init_irq();
 174         omap_gpio_init();
 175         osk_init_smc91x();
 176         osk_init_cf();
 177 }
 178
 179 static struct omap_usb_config osk_usb_config __initdata = {
 180         /* has usb host connector (A) ... for development it can also
 181          * be used, with a NONSTANDARD gender-bending cable/dongle, as
 182          * a peripheral.
 183          */
 184 #ifdef  CONFIG_USB_GADGET_OMAP
 185         .register_dev   = 1,
 186         .hmc_mode       = 0,
 187 #else
 188         .register_host  = 1,
 189         .hmc_mode       = 16,
 190         .rwc            = 1,
 191 #endif
 192         .pins[0]        = 2,
 193 };
 194
 195 static struct omap_uart_config osk_uart_config __initdata = {
 196         .enabled_uarts = (1 << 0),
 197 };
 198
 199 static struct omap_lcd_config osk_lcd_config __initdata = {
 200         .panel_name     = "osk",
 201         .ctrl_name      = "internal",
 202 };
 203
 204 static struct omap_board_config_kernel osk_config[] = {
 205         { OMAP_TAG_USB,           &osk_usb_config },
 206         { OMAP_TAG_UART,                &osk_uart_config },
 207         { OMAP_TAG_LCD,                 &osk_lcd_config },
 208 };
 209
 210 #ifdef  CONFIG_OMAP_OSK_MISTRAL
 211
 212 #ifdef  CONFIG_PM
 213 static irqreturn_t
 214 osk_mistral_wake_interrupt(int irq, void *ignored, struct pt_regs *regs)
 215 {
 216         return IRQ_HANDLED;
 217 }
 218 #endif
 219
 220 static void __init osk_mistral_init(void)
 221 {
 222         /* FIXME here's where to feed in framebuffer, touchpad, and
 223          * keyboard setup ...  not in the drivers for those devices!
 224          *
 225          * NOTE:  we could actually tell if there's a Mistral board
 226          * attached, e.g. by trying to read something from the ads7846.
 227          * But this is too early for that...
 228          */
 229
 230         /* the sideways button (SW1) is for use as a "wakeup" button */
 231         omap_cfg_reg(N15_1610_MPUIO2);
 232         if (omap_request_gpio(OMAP_MPUIO(2)) == 0) {
 233                 int ret = 0;
 234                 omap_set_gpio_direction(OMAP_MPUIO(2), 1);
 235                 set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING);
 236 #ifdef  CONFIG_PM
 237                 /* share the IRQ in case someone wants to use the
 238                  * button for more than wakeup from system sleep.
 239                  */
 240                 ret = request_irq(OMAP_GPIO_IRQ(OMAP_MPUIO(2)),
 241                                 &osk_mistral_wake_interrupt,
 242                                 SA_SHIRQ, "mistral_wakeup",
 243                                 &osk_mistral_wake_interrupt);
 244                 if (ret != 0) {
 245                         omap_free_gpio(OMAP_MPUIO(2));
 246                         printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
 247                                 ret);
 248                 } else
 249                         enable_irq_wake(OMAP_GPIO_IRQ(OMAP_MPUIO(2)));
 250 #endif
 251         } else
 252                 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
 253 }
 254 #else
 255 static void __init osk_mistral_init(void) { }
 256 #endif
 257
 258 static void __init osk_init(void)
 259 {
 260         osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
 261         osk_flash_resource.end += SZ_32M - 1;
 262         platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
 263         omap_board_config = osk_config;
 264         omap_board_config_size = ARRAY_SIZE(osk_config);
 265         USB_TRANSCEIVER_CTRL_REG |= (3 << 1);
 266
 267         omap_serial_init();
 268         osk_mistral_init();
 269 }
 270
 271 static void __init osk_map_io(void)
 272 {
 273         omap1_map_common_io();
 274 }
 275
 276 MACHINE_START(OMAP_OSK, "TI-OSK")
 277         /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
 278         .phys_io        = 0xfff00000,
 279         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 280         .boot_params    = 0x10000100,
 281         .map_io         = osk_map_io,
 282         .init_irq       = osk_init_irq,
 283         .init_machine   = osk_init,
 284         .timer          = &omap_timer,
 285 MACHINE_END