arch/arm/mach-mx3/pcm037.c

   1 /*
   2  *  Copyright (C) 2008 Sascha Hauer, Pengutronix
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #include <linux/types.h>
  20 #include <linux/init.h>
  21
  22 #include <linux/platform_device.h>
  23 #include <linux/mtd/physmap.h>
  24 #include <linux/memory.h>
  25 #include <linux/gpio.h>
  26 #include <linux/smc911x.h>
  27 #include <linux/interrupt.h>
  28
  29 #include <mach/hardware.h>
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/time.h>
  33 #include <asm/mach/map.h>
  34 #include <mach/common.h>
  35 #include <mach/imx-uart.h>
  36 #include <mach/iomux-mx3.h>
  37 #include <mach/board-pcm037.h>
  38
  39 #include "devices.h"
  40
  41 static struct physmap_flash_data pcm037_flash_data = {
  42         .width  = 2,
  43 };
  44
  45 static struct resource pcm037_flash_resource = {
  46         .start  = 0xa0000000,
  47         .end    = 0xa1ffffff,
  48         .flags  = IORESOURCE_MEM,
  49 };
  50
  51 static struct platform_device pcm037_flash = {
  52         .name   = "physmap-flash",
  53         .id     = 0,
  54         .dev    = {
  55                 .platform_data  = &pcm037_flash_data,
  56         },
  57         .resource = &pcm037_flash_resource,
  58         .num_resources = 1,
  59 };
  60
  61 static struct imxuart_platform_data uart_pdata = {
  62         .flags = IMXUART_HAVE_RTSCTS,
  63 };
  64
  65 static struct resource smc911x_resources[] = {
  66         [0] = {
  67                 .start          = CS1_BASE_ADDR + 0x300,
  68                 .end            = CS1_BASE_ADDR + 0x300 + SZ_64K - 1,
  69                 .flags          = IORESOURCE_MEM,
  70         },
  71         [1] = {
  72                 .start          = IOMUX_TO_IRQ(MX31_PIN_GPIO3_1),
  73                 .end            = IOMUX_TO_IRQ(MX31_PIN_GPIO3_1),
  74                 .flags          = IORESOURCE_IRQ,
  75         },
  76 };
  77
  78 static struct smc911x_platdata smc911x_info = {
  79         .flags          = SMC911X_USE_32BIT,
  80         .irq_flags      = IRQF_SHARED | IRQF_TRIGGER_LOW,
  81 };
  82
  83 static struct platform_device pcm037_eth = {
  84         .name           = "smc911x",
  85         .id             = -1,
  86         .num_resources  = ARRAY_SIZE(smc911x_resources),
  87         .resource       = smc911x_resources,
  88         .dev            = {
  89                 .platform_data = &smc911x_info,
  90         },
  91 };
  92
  93 static struct platform_device *devices[] __initdata = {
  94         &pcm037_flash,
  95         &pcm037_eth,
  96 };
  97
  98 /*
  99  * Board specific initialization.
 100  */
 101 static void __init mxc_board_init(void)
 102 {
 103         platform_add_devices(devices, ARRAY_SIZE(devices));
 104
 105         mxc_iomux_mode(MX31_PIN_CTS1__CTS1);
 106         mxc_iomux_mode(MX31_PIN_RTS1__RTS1);
 107         mxc_iomux_mode(MX31_PIN_TXD1__TXD1);
 108         mxc_iomux_mode(MX31_PIN_RXD1__RXD1);
 109
 110         mxc_register_device(&mxc_uart_device0, &uart_pdata);
 111
 112         mxc_iomux_mode(MX31_PIN_CSPI3_MOSI__RXD3);
 113         mxc_iomux_mode(MX31_PIN_CSPI3_MISO__TXD3);
 114
 115         mxc_register_device(&mxc_uart_device2, &uart_pdata);
 116
 117         mxc_iomux_mode(MX31_PIN_BATT_LINE__OWIRE);
 118         mxc_register_device(&mxc_w1_master_device, NULL);
 119
 120         /* SMSC9215 IRQ pin */
 121         mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO3_1, IOMUX_CONFIG_GPIO));
 122         if (!gpio_request(MX31_PIN_GPIO3_1, "pcm037-eth"))
 123                 gpio_direction_input(MX31_PIN_GPIO3_1);
 124 }
 125
 126 /*
 127  * This structure defines static mappings for the pcm037 board.
 128  */
 129 static struct map_desc pcm037_io_desc[] __initdata = {
 130         {
 131                 .virtual        = AIPS1_BASE_ADDR_VIRT,
 132                 .pfn            = __phys_to_pfn(AIPS1_BASE_ADDR),
 133                 .length         = AIPS1_SIZE,
 134                 .type           = MT_DEVICE_NONSHARED
 135         }, {
 136                 .virtual        = AIPS2_BASE_ADDR_VIRT,
 137                 .pfn            = __phys_to_pfn(AIPS2_BASE_ADDR),
 138                 .length         = AIPS2_SIZE,
 139                 .type           = MT_DEVICE_NONSHARED
 140         },
 141 };
 142
 143 /*
 144  * Set up static virtual mappings.
 145  */
 146 void __init pcm037_map_io(void)
 147 {
 148         mxc_map_io();
 149         iotable_init(pcm037_io_desc, ARRAY_SIZE(pcm037_io_desc));
 150 }
 151
 152 static void __init pcm037_timer_init(void)
 153 {
 154         mxc_clocks_init(26000000);
 155         mxc_timer_init("ipg_clk.0");
 156 }
 157
 158 struct sys_timer pcm037_timer = {
 159         .init   = pcm037_timer_init,
 160 };
 161
 162 MACHINE_START(PCM037, "Phytec Phycore pcm037")
 163         /* Maintainer: Pengutronix */
 164         .phys_io        = AIPS1_BASE_ADDR,
 165         .io_pg_offst    = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 166         .boot_params    = PHYS_OFFSET + 0x100,
 167         .map_io         = pcm037_map_io,
 168         .init_irq       = mxc_init_irq,
 169         .init_machine   = mxc_board_init,
 170         .timer          = &pcm037_timer,
 171 MACHINE_END
 172