arch/arm/mach-omap/board-osk.c

   1 /*
   2  * linux/arch/arm/mach-omap/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/device.h>
  32
  33 #include <asm/hardware.h>
  34 #include <asm/mach-types.h>
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/map.h>
  37
  38 #include <asm/arch/gpio.h>
  39 #include <asm/arch/usb.h>
  40 #include <asm/arch/mux.h>
  41 #include <asm/arch/tc.h>
  42
  43 #include "common.h"
  44
  45 static struct map_desc osk5912_io_desc[] __initdata = {
  46 { OMAP_OSK_NOR_FLASH_BASE, OMAP_OSK_NOR_FLASH_START, OMAP_OSK_NOR_FLASH_SIZE,
  47         MT_DEVICE },
  48 };
  49
  50 static int __initdata osk_serial_ports[OMAP_MAX_NR_PORTS] = {1, 0, 0};
  51
  52 static struct resource osk5912_smc91x_resources[] = {
  53         [0] = {
  54                 .start  = OMAP_OSK_ETHR_START,          /* Physical */
  55                 .end    = OMAP_OSK_ETHR_START + 0xf,
  56                 .flags  = IORESOURCE_MEM,
  57         },
  58         [1] = {
  59                 .start  = OMAP_GPIO_IRQ(0),
  60                 .end    = OMAP_GPIO_IRQ(0),
  61                 .flags  = IORESOURCE_IRQ,
  62         },
  63 };
  64
  65 static struct platform_device osk5912_smc91x_device = {
  66         .name           = "smc91x",
  67         .id             = -1,
  68         .num_resources  = ARRAY_SIZE(osk5912_smc91x_resources),
  69         .resource       = osk5912_smc91x_resources,
  70 };
  71
  72 static struct resource osk5912_cf_resources[] = {
  73         [0] = {
  74                 .start  = OMAP_GPIO_IRQ(62),
  75                 .end    = OMAP_GPIO_IRQ(62),
  76                 .flags  = IORESOURCE_IRQ,
  77         },
  78 };
  79
  80 static struct platform_device osk5912_cf_device = {
  81         .name           = "omap_cf",
  82         .id             = -1,
  83         .dev = {
  84                 .platform_data  = (void *) 2 /* CS2 */,
  85         },
  86         .num_resources  = ARRAY_SIZE(osk5912_cf_resources),
  87         .resource       = osk5912_cf_resources,
  88 };
  89
  90 static struct platform_device *osk5912_devices[] __initdata = {
  91         &osk5912_smc91x_device,
  92         &osk5912_cf_device,
  93 };
  94
  95 static void __init osk_init_smc91x(void)
  96 {
  97         if ((omap_request_gpio(0)) < 0) {
  98                 printk("Error requesting gpio 0 for smc91x irq\n");
  99                 return;
 100         }
 101         omap_set_gpio_edge_ctrl(0, OMAP_GPIO_RISING_EDGE);
 102
 103         /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
 104         EMIFS_CCS(1) |= 0x2;
 105 }
 106
 107 static void __init osk_init_cf(void)
 108 {
 109         omap_cfg_reg(M7_1610_GPIO62);
 110         if ((omap_request_gpio(62)) < 0) {
 111                 printk("Error requesting gpio 62 for CF irq\n");
 112                 return;
 113         }
 114         /* it's really active-low */
 115         omap_set_gpio_edge_ctrl(62, OMAP_GPIO_FALLING_EDGE);
 116 }
 117
 118 void osk_init_irq(void)
 119 {
 120         omap_init_irq();
 121         omap_gpio_init();
 122         osk_init_smc91x();
 123         osk_init_cf();
 124 }
 125
 126 static struct omap_usb_config osk_usb_config __initdata = {
 127         /* has usb host connector (A) ... for development it can also
 128          * be used, with a NONSTANDARD gender-bending cable/dongle, as
 129          * a peripheral.
 130          */
 131 #ifdef  CONFIG_USB_GADGET_OMAP
 132         .register_dev   = 1,
 133         .hmc_mode       = 0,
 134 #else
 135         .register_host  = 1,
 136         .hmc_mode       = 16,
 137         .rwc            = 1,
 138 #endif
 139         .pins[0]        = 2,
 140 };
 141
 142 static struct omap_board_config_kernel osk_config[] = {
 143         { OMAP_TAG_USB,           &osk_usb_config },
 144 };
 145
 146 static void __init osk_init(void)
 147 {
 148         platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
 149         omap_board_config = osk_config;
 150         omap_board_config_size = ARRAY_SIZE(osk_config);
 151         USB_TRANSCEIVER_CTRL_REG |= (3 << 1);
 152 }
 153
 154 static void __init osk_map_io(void)
 155 {
 156         omap_map_io();
 157         iotable_init(osk5912_io_desc, ARRAY_SIZE(osk5912_io_desc));
 158         omap_serial_init(osk_serial_ports);
 159 }
 160
 161 MACHINE_START(OMAP_OSK, "TI-OSK")
 162         MAINTAINER("Dirk Behme <dirk.behme@de.bosch.com>")
 163         BOOT_MEM(0x10000000, 0xfff00000, 0xfef00000)
 164         BOOT_PARAMS(0x10000100)
 165         MAPIO(osk_map_io)
 166         INITIRQ(osk_init_irq)
 167         INIT_MACHINE(osk_init)
 168         .timer          = &omap_timer,
 169 MACHINE_END