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 int __initdata osk_serial_ports[OMAP_MAX_NR_PORTS] = {1, 0, 0};
  50
  51 static struct mtd_partition osk_partitions[] = {
  52         /* bootloader (U-Boot, etc) in first sector */
  53         {
  54               .name             = "bootloader",
  55               .offset           = 0,
  56               .size             = SZ_128K,
  57               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  58         },
  59         /* bootloader params in the next sector */
  60         {
  61               .name             = "params",
  62               .offset           = MTDPART_OFS_APPEND,
  63               .size             = SZ_128K,
  64               .mask_flags       = 0,
  65         }, {
  66               .name             = "kernel",
  67               .offset           = MTDPART_OFS_APPEND,
  68               .size             = SZ_2M,
  69               .mask_flags       = 0
  70         }, {
  71               .name             = "filesystem",
  72               .offset           = MTDPART_OFS_APPEND,
  73               .size             = MTDPART_SIZ_FULL,
  74               .mask_flags       = 0
  75         }
  76 };
  77
  78 static struct flash_platform_data osk_flash_data = {
  79         .map_name       = "cfi_probe",
  80         .width          = 2,
  81         .parts          = osk_partitions,
  82         .nr_parts       = ARRAY_SIZE(osk_partitions),
  83 };
  84
  85 static struct resource osk_flash_resource = {
  86         /* this is on CS3, wherever it's mapped */
  87         .flags          = IORESOURCE_MEM,
  88 };
  89
  90 static struct platform_device osk5912_flash_device = {
  91         .name           = "omapflash",
  92         .id             = 0,
  93         .dev            = {
  94                 .platform_data  = &osk_flash_data,
  95         },
  96         .num_resources  = 1,
  97         .resource       = &osk_flash_resource,
  98 };
  99
 100 static struct resource osk5912_smc91x_resources[] = {
 101         [0] = {
 102                 .start  = OMAP_OSK_ETHR_START,          /* Physical */
 103                 .end    = OMAP_OSK_ETHR_START + 0xf,
 104                 .flags  = IORESOURCE_MEM,
 105         },
 106         [1] = {
 107                 .start  = OMAP_GPIO_IRQ(0),
 108                 .end    = OMAP_GPIO_IRQ(0),
 109                 .flags  = IORESOURCE_IRQ,
 110         },
 111 };
 112
 113 static struct platform_device osk5912_smc91x_device = {
 114         .name           = "smc91x",
 115         .id             = -1,
 116         .num_resources  = ARRAY_SIZE(osk5912_smc91x_resources),
 117         .resource       = osk5912_smc91x_resources,
 118 };
 119
 120 static struct resource osk5912_cf_resources[] = {
 121         [0] = {
 122                 .start  = OMAP_GPIO_IRQ(62),
 123                 .end    = OMAP_GPIO_IRQ(62),
 124                 .flags  = IORESOURCE_IRQ,
 125         },
 126 };
 127
 128 static struct platform_device osk5912_cf_device = {
 129         .name           = "omap_cf",
 130         .id             = -1,
 131         .dev = {
 132                 .platform_data  = (void *) 2 /* CS2 */,
 133         },
 134         .num_resources  = ARRAY_SIZE(osk5912_cf_resources),
 135         .resource       = osk5912_cf_resources,
 136 };
 137
 138 static struct platform_device osk5912_mcbsp1_device = {
 139         .name           = "omap_mcbsp",
 140         .id             = 1,
 141 };
 142
 143 static struct platform_device *osk5912_devices[] __initdata = {
 144         &osk5912_flash_device,
 145         &osk5912_smc91x_device,
 146         &osk5912_cf_device,
 147         &osk5912_mcbsp1_device,
 148 };
 149
 150 static void __init osk_init_smc91x(void)
 151 {
 152         if ((omap_request_gpio(0)) < 0) {
 153                 printk("Error requesting gpio 0 for smc91x irq\n");
 154                 return;
 155         }
 156
 157         /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
 158         EMIFS_CCS(1) |= 0x2;
 159 }
 160
 161 static void __init osk_init_cf(void)
 162 {
 163         omap_cfg_reg(M7_1610_GPIO62);
 164         if ((omap_request_gpio(62)) < 0) {
 165                 printk("Error requesting gpio 62 for CF irq\n");
 166                 return;
 167         }
 168         /* the CF I/O IRQ is really active-low */
 169         set_irq_type(OMAP_GPIO_IRQ(62), IRQT_FALLING);
 170 }
 171
 172 static void __init osk_init_irq(void)
 173 {
 174         omap_init_irq();
 175         omap_gpio_init();
 176         osk_init_smc91x();
 177         osk_init_cf();
 178 }
 179
 180 static struct omap_usb_config osk_usb_config __initdata = {
 181         /* has usb host connector (A) ... for development it can also
 182          * be used, with a NONSTANDARD gender-bending cable/dongle, as
 183          * a peripheral.
 184          */
 185 #ifdef  CONFIG_USB_GADGET_OMAP
 186         .register_dev   = 1,
 187         .hmc_mode       = 0,
 188 #else
 189         .register_host  = 1,
 190         .hmc_mode       = 16,
 191         .rwc            = 1,
 192 #endif
 193         .pins[0]        = 2,
 194 };
 195
 196 static struct omap_board_config_kernel osk_config[] = {
 197         { OMAP_TAG_USB,           &osk_usb_config },
 198 };
 199
 200 #ifdef  CONFIG_OMAP_OSK_MISTRAL
 201
 202 #ifdef  CONFIG_PM
 203 static irqreturn_t
 204 osk_mistral_wake_interrupt(int irq, void *ignored, struct pt_regs *regs)
 205 {
 206         return IRQ_HANDLED;
 207 }
 208 #endif
 209
 210 static void __init osk_mistral_init(void)
 211 {
 212         /* FIXME here's where to feed in framebuffer, touchpad, and
 213          * keyboard setup ...  not in the drivers for those devices!
 214          *
 215          * NOTE:  we could actually tell if there's a Mistral board
 216          * attached, e.g. by trying to read something from the ads7846.
 217          * But this is too early for that...
 218          */
 219
 220         /* the sideways button (SW1) is for use as a "wakeup" button */
 221         omap_cfg_reg(N15_1610_MPUIO2);
 222         if (omap_request_gpio(OMAP_MPUIO(2)) == 0) {
 223                 int ret = 0;
 224                 omap_set_gpio_direction(OMAP_MPUIO(2), 1);
 225                 set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING);
 226 #ifdef  CONFIG_PM
 227                 /* share the IRQ in case someone wants to use the
 228                  * button for more than wakeup from system sleep.
 229                  */
 230                 ret = request_irq(OMAP_GPIO_IRQ(OMAP_MPUIO(2)),
 231                                 &osk_mistral_wake_interrupt,
 232                                 SA_SHIRQ, "mistral_wakeup",
 233                                 &osk_mistral_wake_interrupt);
 234                 if (ret != 0) {
 235                         omap_free_gpio(OMAP_MPUIO(2));
 236                         printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
 237                                 ret);
 238                 } else
 239                         enable_irq_wake(OMAP_GPIO_IRQ(OMAP_MPUIO(2)));
 240 #endif
 241         } else
 242                 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
 243 }
 244 #else
 245 static void __init osk_mistral_init(void) { }
 246 #endif
 247
 248 static void __init osk_init(void)
 249 {
 250         osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
 251         osk_flash_resource.end += SZ_32M - 1;
 252         platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
 253         omap_board_config = osk_config;
 254         omap_board_config_size = ARRAY_SIZE(osk_config);
 255         USB_TRANSCEIVER_CTRL_REG |= (3 << 1);
 256
 257         osk_mistral_init();
 258 }
 259
 260 static void __init osk_map_io(void)
 261 {
 262         omap_map_common_io();
 263         omap_serial_init(osk_serial_ports);
 264 }
 265
 266 MACHINE_START(OMAP_OSK, "TI-OSK")
 267         /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
 268         .phys_ram       = 0x10000000,
 269         .phys_io        = 0xfff00000,
 270         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 271         .boot_params    = 0x10000100,
 272         .map_io         = osk_map_io,
 273         .init_irq       = osk_init_irq,
 274         .init_machine   = osk_init,
 275         .timer          = &omap_timer,
 276 MACHINE_END