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/mtd/plat-ram.h>
  25 #include <linux/memory.h>
  26 #include <linux/gpio.h>
  27 #include <linux/smc911x.h>
  28 #include <linux/interrupt.h>
  29
  30 #include <mach/hardware.h>
  31 #include <asm/mach-types.h>
  32 #include <asm/mach/arch.h>
  33 #include <asm/mach/time.h>
  34 #include <asm/mach/map.h>
  35 #include <mach/common.h>
  36 #include <mach/imx-uart.h>
  37 #include <mach/iomux-mx3.h>
  38 #include <mach/board-pcm037.h>
  39 #include <mach/mxc_nand.h>
  40
  41 #include "devices.h"
  42
  43 static struct physmap_flash_data pcm037_flash_data = {
  44         .width  = 2,
  45 };
  46
  47 static struct resource pcm037_flash_resource = {
  48         .start  = 0xa0000000,
  49         .end    = 0xa1ffffff,
  50         .flags  = IORESOURCE_MEM,
  51 };
  52
  53 static struct platform_device pcm037_flash = {
  54         .name   = "physmap-flash",
  55         .id     = 0,
  56         .dev    = {
  57                 .platform_data  = &pcm037_flash_data,
  58         },
  59         .resource = &pcm037_flash_resource,
  60         .num_resources = 1,
  61 };
  62
  63 static struct imxuart_platform_data uart_pdata = {
  64         .flags = IMXUART_HAVE_RTSCTS,
  65 };
  66
  67 static struct resource smc911x_resources[] = {
  68         [0] = {
  69                 .start          = CS1_BASE_ADDR + 0x300,
  70                 .end            = CS1_BASE_ADDR + 0x300 + SZ_64K - 1,
  71                 .flags          = IORESOURCE_MEM,
  72         },
  73         [1] = {
  74                 .start          = IOMUX_TO_IRQ(MX31_PIN_GPIO3_1),
  75                 .end            = IOMUX_TO_IRQ(MX31_PIN_GPIO3_1),
  76                 .flags          = IORESOURCE_IRQ,
  77         },
  78 };
  79
  80 static struct smc911x_platdata smc911x_info = {
  81         .flags          = SMC911X_USE_32BIT,
  82         .irq_flags      = IRQF_SHARED | IRQF_TRIGGER_LOW,
  83 };
  84
  85 static struct platform_device pcm037_eth = {
  86         .name           = "smc911x",
  87         .id             = -1,
  88         .num_resources  = ARRAY_SIZE(smc911x_resources),
  89         .resource       = smc911x_resources,
  90         .dev            = {
  91                 .platform_data = &smc911x_info,
  92         },
  93 };
  94
  95 static struct platdata_mtd_ram pcm038_sram_data = {
  96         .bankwidth = 2,
  97 };
  98
  99 static struct resource pcm038_sram_resource = {
 100         .start = CS4_BASE_ADDR,
 101         .end   = CS4_BASE_ADDR + 512 * 1024 - 1,
 102         .flags = IORESOURCE_MEM,
 103 };
 104
 105 static struct platform_device pcm037_sram_device = {
 106         .name = "mtd-ram",
 107         .id = 0,
 108         .dev = {
 109                 .platform_data = &pcm038_sram_data,
 110         },
 111         .num_resources = 1,
 112         .resource = &pcm038_sram_resource,
 113 };
 114
 115 static struct mxc_nand_platform_data pcm037_nand_board_info = {
 116         .width = 1,
 117         .hw_ecc = 1,
 118 };
 119
 120 static struct platform_device *devices[] __initdata = {
 121         &pcm037_flash,
 122         &pcm037_eth,
 123         &pcm037_sram_device,
 124 };
 125
 126 /*
 127  * Board specific initialization.
 128  */
 129 static void __init mxc_board_init(void)
 130 {
 131         platform_add_devices(devices, ARRAY_SIZE(devices));
 132
 133         mxc_iomux_mode(MX31_PIN_CTS1__CTS1);
 134         mxc_iomux_mode(MX31_PIN_RTS1__RTS1);
 135         mxc_iomux_mode(MX31_PIN_TXD1__TXD1);
 136         mxc_iomux_mode(MX31_PIN_RXD1__RXD1);
 137
 138         mxc_register_device(&mxc_uart_device0, &uart_pdata);
 139
 140         mxc_iomux_mode(MX31_PIN_CSPI3_MOSI__RXD3);
 141         mxc_iomux_mode(MX31_PIN_CSPI3_MISO__TXD3);
 142
 143         mxc_register_device(&mxc_uart_device2, &uart_pdata);
 144
 145         mxc_iomux_mode(MX31_PIN_BATT_LINE__OWIRE);
 146         mxc_register_device(&mxc_w1_master_device, NULL);
 147
 148         /* SMSC9215 IRQ pin */
 149         mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO3_1, IOMUX_CONFIG_GPIO));
 150         if (!gpio_request(MX31_PIN_GPIO3_1, "pcm037-eth"))
 151                 gpio_direction_input(MX31_PIN_GPIO3_1);
 152
 153         mxc_register_device(&mxc_nand_device, &pcm037_nand_board_info);
 154 }
 155
 156 /*
 157  * This structure defines static mappings for the pcm037 board.
 158  */
 159 static struct map_desc pcm037_io_desc[] __initdata = {
 160         {
 161                 .virtual        = AIPS1_BASE_ADDR_VIRT,
 162                 .pfn            = __phys_to_pfn(AIPS1_BASE_ADDR),
 163                 .length         = AIPS1_SIZE,
 164                 .type           = MT_DEVICE_NONSHARED
 165         }, {
 166                 .virtual        = AIPS2_BASE_ADDR_VIRT,
 167                 .pfn            = __phys_to_pfn(AIPS2_BASE_ADDR),
 168                 .length         = AIPS2_SIZE,
 169                 .type           = MT_DEVICE_NONSHARED
 170         },
 171 };
 172
 173 /*
 174  * Set up static virtual mappings.
 175  */
 176 void __init pcm037_map_io(void)
 177 {
 178         mxc_map_io();
 179         iotable_init(pcm037_io_desc, ARRAY_SIZE(pcm037_io_desc));
 180 }
 181
 182 static void __init pcm037_timer_init(void)
 183 {
 184         mxc_clocks_init(26000000);
 185         mxc_timer_init("ipg_clk.0");
 186 }
 187
 188 struct sys_timer pcm037_timer = {
 189         .init   = pcm037_timer_init,
 190 };
 191
 192 MACHINE_START(PCM037, "Phytec Phycore pcm037")
 193         /* Maintainer: Pengutronix */
 194         .phys_io        = AIPS1_BASE_ADDR,
 195         .io_pg_offst    = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 196         .boot_params    = PHYS_OFFSET + 0x100,
 197         .map_io         = pcm037_map_io,
 198         .init_irq       = mxc_init_irq,
 199         .init_machine   = mxc_board_init,
 200         .timer          = &pcm037_timer,
 201 MACHINE_END
 202