arch/arm/mach-omap2/board-am3517crane.c

   1 /*
   2  * Support for AM3517/05 Craneboard
   3  * http://www.mistralsolutions.com/products/craneboard.php
   4  *
   5  * Copyright (C) 2010 Mistral Solutions Pvt Ltd. <www.mistralsolutions.com>
   6  * Author: R.Srinath <srinath@mistralsolutions.com>
   7  *
   8  * Based on mach-omap2/board-am3517evm.c
   9  *
  10  * This program is free software; you can redistribute it and/or modify it
  11  * under the terms of the GNU General Public License as  published by the
  12  * Free Software Foundation version 2.
  13  *
  14  * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
  15  * whether express or implied; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  */
  19
  20 #include <linux/kernel.h>
  21 #include <linux/init.h>
  22 #include <linux/gpio.h>
  23 #include <linux/mfd/tps65910.h>
  24 #include <linux/mtd/mtd.h>
  25 #include <linux/mtd/nand.h>
  26 #include <linux/mtd/partitions.h>
  27
  28 #include <asm/mach-types.h>
  29 #include <asm/mach/arch.h>
  30 #include <asm/mach/map.h>
  31
  32 #include "common.h"
  33 #include "common-board-devices.h"
  34 #include "board-flash.h"
  35
  36 #include "am35xx-emac.h"
  37 #include "mux.h"
  38 #include "control.h"
  39
  40 #define GPIO_USB_POWER          35
  41 #define GPIO_USB_NRESET         38
  42
  43 #ifdef CONFIG_OMAP_MUX
  44 static struct omap_board_mux board_mux[] __initdata = {
  45         OMAP3_MUX(SYS_NIRQ, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
  46         { .reg_offset = OMAP_MUX_TERMINATOR },
  47 };
  48 #endif
  49
  50 static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
  51         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
  52         .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
  53         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
  54
  55         .phy_reset  = true,
  56         .reset_gpio_port[0]  = GPIO_USB_NRESET,
  57         .reset_gpio_port[1]  = -EINVAL,
  58         .reset_gpio_port[2]  = -EINVAL
  59 };
  60
  61 static struct mtd_partition crane_nand_partitions[] = {
  62         {
  63                 .name           = "X-Loader",
  64                 .offset         = 0,
  65                 .size           = 4 * NAND_BLOCK_SIZE,
  66                 .mask_flags     = MTD_WRITEABLE,
  67         },
  68         {
  69                 .name           = "U-Boot",
  70                 .offset         = MTDPART_OFS_APPEND,
  71                 .size           = 14 * NAND_BLOCK_SIZE,
  72                 .mask_flags     = MTD_WRITEABLE,
  73         },
  74         {
  75                 .name           = "U-Boot Env",
  76                 .offset         = MTDPART_OFS_APPEND,
  77                 .size           = 2 * NAND_BLOCK_SIZE,
  78         },
  79         {
  80                 .name           = "Kernel",
  81                 .offset         = MTDPART_OFS_APPEND,
  82                 .size           = 40 * NAND_BLOCK_SIZE,
  83         },
  84         {
  85                 .name           = "File System",
  86                 .offset         = MTDPART_OFS_APPEND,
  87                 .size           = MTDPART_SIZ_FULL,
  88         },
  89 };
  90
  91 static struct tps65910_board tps65910_pdata = {
  92         .irq = 7 + OMAP_INTC_START,
  93         .en_ck32k_xtal = true,
  94 };
  95
  96 static struct i2c_board_info __initdata tps65910_board_info[] = {
  97         {
  98                 I2C_BOARD_INFO("tps65910", 0x2d),
  99                 .platform_data = &tps65910_pdata,
 100         },
 101 };
 102
 103 static void __init am3517_crane_i2c_init(void)
 104 {
 105         omap_register_i2c_bus(1, 2600, tps65910_board_info,
 106                         ARRAY_SIZE(tps65910_board_info));
 107 }
 108
 109 static void __init am3517_crane_init(void)
 110 {
 111         int ret;
 112
 113         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 114         omap_serial_init();
 115         omap_sdrc_init(NULL, NULL);
 116         board_nand_init(crane_nand_partitions,
 117                         ARRAY_SIZE(crane_nand_partitions), 0,
 118                         NAND_BUSWIDTH_16, NULL);
 119         am3517_crane_i2c_init();
 120
 121         /* Configure GPIO for EHCI port */
 122         if (omap_mux_init_gpio(GPIO_USB_NRESET, OMAP_PIN_OUTPUT)) {
 123                 pr_err("Can not configure mux for GPIO_USB_NRESET %d\n",
 124                         GPIO_USB_NRESET);
 125                 return;
 126         }
 127
 128         if (omap_mux_init_gpio(GPIO_USB_POWER, OMAP_PIN_OUTPUT)) {
 129                 pr_err("Can not configure mux for GPIO_USB_POWER %d\n",
 130                         GPIO_USB_POWER);
 131                 return;
 132         }
 133
 134         ret = gpio_request_one(GPIO_USB_POWER, GPIOF_OUT_INIT_HIGH,
 135                                "usb_ehci_enable");
 136         if (ret < 0) {
 137                 pr_err("Can not request GPIO %d\n", GPIO_USB_POWER);
 138                 return;
 139         }
 140
 141         usbhs_init(&usbhs_bdata);
 142         am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1);
 143 }
 144
 145 MACHINE_START(CRANEBOARD, "AM3517/05 CRANEBOARD")
 146         .atag_offset    = 0x100,
 147         .reserve        = omap_reserve,
 148         .map_io         = omap3_map_io,
 149         .init_early     = am35xx_init_early,
 150         .init_irq       = omap3_init_irq,
 151         .handle_irq     = omap3_intc_handle_irq,
 152         .init_machine   = am3517_crane_init,
 153         .init_late      = am35xx_init_late,
 154         .init_time      = omap3_sync32k_timer_init,
 155         .restart        = omap3xxx_restart,
 156 MACHINE_END