arch/arm/mach-mx3/mx31lilly.c

   1 /*
   2  *  LILLY-1131 module support
   3  *
   4  *    Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
   5  *
   6  *  based on code for other MX31 boards,
   7  *
   8  *    Copyright 2005-2007 Freescale Semiconductor
   9  *    Copyright (c) 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
  10  *    Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  25  */
  26
  27 #include <linux/types.h>
  28 #include <linux/init.h>
  29 #include <linux/clk.h>
  30 #include <linux/platform_device.h>
  31 #include <linux/interrupt.h>
  32 #include <linux/smsc911x.h>
  33 #include <linux/mtd/physmap.h>
  34
  35 #include <asm/mach-types.h>
  36 #include <asm/mach/arch.h>
  37 #include <asm/mach/time.h>
  38 #include <asm/mach/map.h>
  39
  40 #include <mach/hardware.h>
  41 #include <mach/common.h>
  42 #include <mach/iomux-mx3.h>
  43 #include <mach/board-mx31lilly.h>
  44 #include <mach/spi.h>
  45
  46 #include "devices.h"
  47
  48 /*
  49  * This file contains module-specific initialization routines for LILLY-1131.
  50  * Initialization of peripherals found on the baseboard is implemented in the
  51  * appropriate baseboard support code.
  52  */
  53
  54 /* SMSC ethernet support */
  55
  56 static struct resource smsc91x_resources[] = {
  57         {
  58                 .start  = CS4_BASE_ADDR,
  59                 .end    = CS4_BASE_ADDR + 0xffff,
  60                 .flags  = IORESOURCE_MEM,
  61         },
  62         {
  63                 .start  = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
  64                 .end    = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
  65                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
  66         }
  67 };
  68
  69 static struct smsc911x_platform_config smsc911x_config = {
  70         .phy_interface  = PHY_INTERFACE_MODE_MII,
  71         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
  72         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
  73         .flags          = SMSC911X_USE_32BIT |
  74                           SMSC911X_SAVE_MAC_ADDRESS |
  75                           SMSC911X_FORCE_INTERNAL_PHY,
  76 };
  77
  78 static struct platform_device smsc91x_device = {
  79         .name           = "smsc911x",
  80         .id             = -1,
  81         .num_resources  = ARRAY_SIZE(smsc91x_resources),
  82         .resource       = smsc91x_resources,
  83         .dev            = {
  84                 .platform_data = &smsc911x_config,
  85         }
  86 };
  87
  88 /* NOR flash */
  89 static struct physmap_flash_data nor_flash_data = {
  90         .width  = 2,
  91 };
  92
  93 static struct resource nor_flash_resource = {
  94         .start  = 0xa0000000,
  95         .end    = 0xa1ffffff,
  96         .flags  = IORESOURCE_MEM,
  97 };
  98
  99 static struct platform_device physmap_flash_device = {
 100         .name   = "physmap-flash",
 101         .id     = 0,
 102         .dev    = {
 103                 .platform_data  = &nor_flash_data,
 104         },
 105         .resource = &nor_flash_resource,
 106         .num_resources = 1,
 107 };
 108
 109 static struct platform_device *devices[] __initdata = {
 110         &smsc91x_device,
 111         &physmap_flash_device,
 112 };
 113
 114 static int spi_internal_chipselect[] = {
 115         MXC_SPI_CS(0),
 116         MXC_SPI_CS(1),
 117         MXC_SPI_CS(2),
 118 };
 119
 120 static struct spi_imx_master spi0_pdata = {
 121         .chipselect = spi_internal_chipselect,
 122         .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
 123 };
 124
 125 static struct spi_imx_master spi1_pdata = {
 126         .chipselect = spi_internal_chipselect,
 127         .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
 128 };
 129
 130 static int mx31lilly_baseboard;
 131 core_param(mx31lilly_baseboard, mx31lilly_baseboard, int, 0444);
 132
 133 static void __init mx31lilly_board_init(void)
 134 {
 135         switch (mx31lilly_baseboard) {
 136         case MX31LILLY_NOBOARD:
 137                 break;
 138         case MX31LILLY_DB:
 139                 mx31lilly_db_init();
 140                 break;
 141         default:
 142                 printk(KERN_ERR "Illegal mx31lilly_baseboard type %d\n",
 143                         mx31lilly_baseboard);
 144         }
 145
 146         mxc_iomux_alloc_pin(MX31_PIN_CS4__CS4, "Ethernet CS");
 147
 148         /* SPI */
 149         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SCLK__SCLK, "SPI1_CLK");
 150         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MOSI__MOSI, "SPI1_TX");
 151         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MISO__MISO, "SPI1_RX");
 152         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SPI_RDY__SPI_RDY, "SPI1_RDY");
 153         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS0__SS0, "SPI1_SS0");
 154         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS1__SS1, "SPI1_SS1");
 155         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS2__SS2, "SPI1_SS2");
 156
 157         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SCLK__SCLK, "SPI2_CLK");
 158         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MOSI__MOSI, "SPI2_TX");
 159         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MISO__MISO, "SPI2_RX");
 160         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SPI_RDY__SPI_RDY, "SPI2_RDY");
 161         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS0__SS0, "SPI2_SS0");
 162         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS1__SS1, "SPI2_SS1");
 163         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS2__SS2, "SPI2_SS2");
 164
 165         mxc_register_device(&mxc_spi_device0, &spi0_pdata);
 166         mxc_register_device(&mxc_spi_device1, &spi1_pdata);
 167
 168         platform_add_devices(devices, ARRAY_SIZE(devices));
 169 }
 170
 171 static void __init mx31lilly_timer_init(void)
 172 {
 173         mx31_clocks_init(26000000);
 174 }
 175
 176 static struct sys_timer mx31lilly_timer = {
 177         .init   = mx31lilly_timer_init,
 178 };
 179
 180 MACHINE_START(LILLY1131, "INCO startec LILLY-1131")
 181         .phys_io        = AIPS1_BASE_ADDR,
 182         .io_pg_offst    = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 183         .boot_params    = PHYS_OFFSET + 0x100,
 184         .map_io         = mx31_map_io,
 185         .init_irq       = mx31_init_irq,
 186         .init_machine   = mx31lilly_board_init,
 187         .timer          = &mx31lilly_timer,
 188 MACHINE_END
 189