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

   1 /*
   2  * linux/arch/arm/mach-omap2/board-ldp.c
   3  *
   4  * Copyright (C) 2008 Texas Instruments Inc.
   5  * Nishant Kamat <nskamat@ti.com>
   6  *
   7  * Modified from mach-omap2/board-3430sdp.c
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  */
  13
  14 #include <linux/kernel.h>
  15 #include <linux/init.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/delay.h>
  18 #include <linux/input.h>
  19 #include <linux/workqueue.h>
  20 #include <linux/err.h>
  21 #include <linux/clk.h>
  22 #include <linux/spi/spi.h>
  23 #include <linux/spi/ads7846.h>
  24 #include <linux/i2c/twl4030.h>
  25 #include <linux/io.h>
  26 #include <linux/smsc911x.h>
  27
  28 #include <mach/hardware.h>
  29 #include <asm/mach-types.h>
  30 #include <asm/mach/arch.h>
  31 #include <asm/mach/map.h>
  32
  33 #include <mach/mcspi.h>
  34 #include <mach/gpio.h>
  35 #include <mach/board.h>
  36 #include <mach/common.h>
  37 #include <mach/gpmc.h>
  38
  39 #include <asm/delay.h>
  40 #include <mach/control.h>
  41 #include <mach/usb.h>
  42
  43 #include "mmc-twl4030.h"
  44
  45 #define LDP_SMSC911X_CS         1
  46 #define LDP_SMSC911X_GPIO       152
  47 #define DEBUG_BASE              0x08000000
  48 #define LDP_ETHR_START          DEBUG_BASE
  49
  50 static struct resource ldp_smsc911x_resources[] = {
  51         [0] = {
  52                 .start  = LDP_ETHR_START,
  53                 .end    = LDP_ETHR_START + SZ_4K,
  54                 .flags  = IORESOURCE_MEM,
  55         },
  56         [1] = {
  57                 .start  = 0,
  58                 .end    = 0,
  59                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
  60         },
  61 };
  62
  63 static struct smsc911x_platform_config ldp_smsc911x_config = {
  64         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
  65         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
  66         .flags          = SMSC911X_USE_32BIT,
  67         .phy_interface  = PHY_INTERFACE_MODE_MII,
  68 };
  69
  70 static struct platform_device ldp_smsc911x_device = {
  71         .name           = "smsc911x",
  72         .id             = -1,
  73         .num_resources  = ARRAY_SIZE(ldp_smsc911x_resources),
  74         .resource       = ldp_smsc911x_resources,
  75         .dev            = {
  76                 .platform_data = &ldp_smsc911x_config,
  77         },
  78 };
  79
  80 static struct platform_device *ldp_devices[] __initdata = {
  81         &ldp_smsc911x_device,
  82 };
  83
  84 static inline void __init ldp_init_smsc911x(void)
  85 {
  86         int eth_cs;
  87         unsigned long cs_mem_base;
  88         int eth_gpio = 0;
  89
  90         eth_cs = LDP_SMSC911X_CS;
  91
  92         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
  93                 printk(KERN_ERR "Failed to request GPMC mem for smsc911x\n");
  94                 return;
  95         }
  96
  97         ldp_smsc911x_resources[0].start = cs_mem_base + 0x0;
  98         ldp_smsc911x_resources[0].end   = cs_mem_base + 0xff;
  99         udelay(100);
 100
 101         eth_gpio = LDP_SMSC911X_GPIO;
 102
 103         ldp_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
 104
 105         if (gpio_request(eth_gpio, "smsc911x irq") < 0) {
 106                 printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n",
 107                                 eth_gpio);
 108                 return;
 109         }
 110         gpio_direction_input(eth_gpio);
 111 }
 112
 113 static void __init omap_ldp_init_irq(void)
 114 {
 115         omap2_init_common_hw(NULL);
 116         omap_init_irq();
 117         omap_gpio_init();
 118         ldp_init_smsc911x();
 119 }
 120
 121 static struct omap_uart_config ldp_uart_config __initdata = {
 122         .enabled_uarts  = ((1 << 0) | (1 << 1) | (1 << 2)),
 123 };
 124
 125 static struct omap_board_config_kernel ldp_config[] __initdata = {
 126         { OMAP_TAG_UART,        &ldp_uart_config },
 127 };
 128
 129 static struct twl4030_gpio_platform_data ldp_gpio_data = {
 130         .gpio_base      = OMAP_MAX_GPIO_LINES,
 131         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 132         .irq_end        = TWL4030_GPIO_IRQ_END,
 133 };
 134
 135 static struct twl4030_platform_data ldp_twldata = {
 136         .irq_base       = TWL4030_IRQ_BASE,
 137         .irq_end        = TWL4030_IRQ_END,
 138
 139         /* platform_data for children goes here */
 140         .gpio           = &ldp_gpio_data,
 141 };
 142
 143 static struct i2c_board_info __initdata ldp_i2c_boardinfo[] = {
 144         {
 145                 I2C_BOARD_INFO("twl4030", 0x48),
 146                 .flags = I2C_CLIENT_WAKE,
 147                 .irq = INT_34XX_SYS_NIRQ,
 148                 .platform_data = &ldp_twldata,
 149         },
 150 };
 151
 152 static int __init omap_i2c_init(void)
 153 {
 154         omap_register_i2c_bus(1, 2600, ldp_i2c_boardinfo,
 155                         ARRAY_SIZE(ldp_i2c_boardinfo));
 156         omap_register_i2c_bus(2, 400, NULL, 0);
 157         omap_register_i2c_bus(3, 400, NULL, 0);
 158         return 0;
 159 }
 160
 161 static struct twl4030_hsmmc_info mmc[] __initdata = {
 162         {
 163                 .mmc            = 1,
 164                 .wires          = 4,
 165                 .gpio_cd        = -EINVAL,
 166                 .gpio_wp        = -EINVAL,
 167         },
 168         {}      /* Terminator */
 169 };
 170
 171 static void __init omap_ldp_init(void)
 172 {
 173         omap_i2c_init();
 174         platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
 175         omap_board_config = ldp_config;
 176         omap_board_config_size = ARRAY_SIZE(ldp_config);
 177         omap_serial_init();
 178         twl4030_mmc_init(mmc);
 179         usb_musb_init();
 180 }
 181
 182 static void __init omap_ldp_map_io(void)
 183 {
 184         omap2_set_globals_343x();
 185         omap2_map_common_io();
 186 }
 187
 188 MACHINE_START(OMAP_LDP, "OMAP LDP board")
 189         .phys_io        = 0x48000000,
 190         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 191         .boot_params    = 0x80000100,
 192         .map_io         = omap_ldp_map_io,
 193         .init_irq       = omap_ldp_init_irq,
 194         .init_machine   = omap_ldp_init,
 195         .timer          = &omap_timer,
 196 MACHINE_END