SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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 #include <linux/i2c.h>
  30 #include <linux/i2c/at24.h>
  31
  32 #include <mach/hardware.h>
  33 #include <asm/mach-types.h>
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach/time.h>
  36 #include <asm/mach/map.h>
  37 #include <mach/common.h>
  38 #include <mach/imx-uart.h>
  39 #include <mach/iomux-mx3.h>
  40 #include <mach/board-pcm037.h>
  41 #include <mach/mxc_nand.h>
  42 #ifdef CONFIG_I2C_IMX
  43 #include <mach/i2c.h>
  44 #endif
  45
  46 #include "devices.h"
  47
  48 static struct physmap_flash_data pcm037_flash_data = {
  49         .width  = 2,
  50 };
  51
  52 static struct resource pcm037_flash_resource = {
  53         .start  = 0xa0000000,
  54         .end    = 0xa1ffffff,
  55         .flags  = IORESOURCE_MEM,
  56 };
  57
  58 static struct platform_device pcm037_flash = {
  59         .name   = "physmap-flash",
  60         .id     = 0,
  61         .dev    = {
  62                 .platform_data  = &pcm037_flash_data,
  63         },
  64         .resource = &pcm037_flash_resource,
  65         .num_resources = 1,
  66 };
  67
  68 static struct imxuart_platform_data uart_pdata = {
  69         .flags = IMXUART_HAVE_RTSCTS,
  70 };
  71
  72 static struct resource smc911x_resources[] = {
  73         [0] = {
  74                 .start          = CS1_BASE_ADDR + 0x300,
  75                 .end            = CS1_BASE_ADDR + 0x300 + SZ_64K - 1,
  76                 .flags          = IORESOURCE_MEM,
  77         },
  78         [1] = {
  79                 .start          = IOMUX_TO_IRQ(MX31_PIN_GPIO3_1),
  80                 .end            = IOMUX_TO_IRQ(MX31_PIN_GPIO3_1),
  81                 .flags          = IORESOURCE_IRQ,
  82         },
  83 };
  84
  85 static struct smc911x_platdata smc911x_info = {
  86         .flags          = SMC911X_USE_32BIT,
  87         .irq_flags      = IRQF_SHARED | IRQF_TRIGGER_LOW,
  88 };
  89
  90 static struct platform_device pcm037_eth = {
  91         .name           = "smc911x",
  92         .id             = -1,
  93         .num_resources  = ARRAY_SIZE(smc911x_resources),
  94         .resource       = smc911x_resources,
  95         .dev            = {
  96                 .platform_data = &smc911x_info,
  97         },
  98 };
  99
 100 static struct platdata_mtd_ram pcm038_sram_data = {
 101         .bankwidth = 2,
 102 };
 103
 104 static struct resource pcm038_sram_resource = {
 105         .start = CS4_BASE_ADDR,
 106         .end   = CS4_BASE_ADDR + 512 * 1024 - 1,
 107         .flags = IORESOURCE_MEM,
 108 };
 109
 110 static struct platform_device pcm037_sram_device = {
 111         .name = "mtd-ram",
 112         .id = 0,
 113         .dev = {
 114                 .platform_data = &pcm038_sram_data,
 115         },
 116         .num_resources = 1,
 117         .resource = &pcm038_sram_resource,
 118 };
 119
 120 static struct mxc_nand_platform_data pcm037_nand_board_info = {
 121         .width = 1,
 122         .hw_ecc = 1,
 123 };
 124
 125 #ifdef CONFIG_I2C_IMX
 126 static int i2c_1_pins[] = {
 127         MX31_PIN_CSPI2_MOSI__SCL,
 128         MX31_PIN_CSPI2_MISO__SDA,
 129 };
 130
 131 static int pcm037_i2c_1_init(struct device *dev)
 132 {
 133         return mxc_iomux_setup_multiple_pins(i2c_1_pins, ARRAY_SIZE(i2c_1_pins),
 134                         "i2c-1");
 135 }
 136
 137 static void pcm037_i2c_1_exit(struct device *dev)
 138 {
 139         mxc_iomux_release_multiple_pins(i2c_1_pins, ARRAY_SIZE(i2c_1_pins));
 140 }
 141
 142 static struct imxi2c_platform_data pcm037_i2c_1_data = {
 143         .bitrate = 100000,
 144         .init = pcm037_i2c_1_init,
 145         .exit = pcm037_i2c_1_exit,
 146 };
 147
 148 static struct at24_platform_data board_eeprom = {
 149         .byte_len = 4096,
 150         .page_size = 32,
 151         .flags = AT24_FLAG_ADDR16,
 152 };
 153
 154 static struct i2c_board_info pcm037_i2c_devices[] = {
 155        {
 156                 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
 157                 .platform_data = &board_eeprom,
 158         }, {
 159                 I2C_BOARD_INFO("rtc-pcf8563", 0x51),
 160                 .type = "pcf8563",
 161         }
 162 };
 163 #endif
 164
 165 static struct platform_device *devices[] __initdata = {
 166         &pcm037_flash,
 167         &pcm037_eth,
 168         &pcm037_sram_device,
 169 };
 170
 171 static int uart0_pins[] = {
 172         MX31_PIN_CTS1__CTS1,
 173         MX31_PIN_RTS1__RTS1,
 174         MX31_PIN_TXD1__TXD1,
 175         MX31_PIN_RXD1__RXD1
 176 };
 177
 178 static int uart2_pins[] = {
 179         MX31_PIN_CSPI3_MOSI__RXD3,
 180         MX31_PIN_CSPI3_MISO__TXD3
 181 };
 182
 183 /*
 184  * Board specific initialization.
 185  */
 186 static void __init mxc_board_init(void)
 187 {
 188         platform_add_devices(devices, ARRAY_SIZE(devices));
 189
 190         mxc_iomux_setup_multiple_pins(uart0_pins, ARRAY_SIZE(uart0_pins), "uart-0");
 191         mxc_register_device(&mxc_uart_device0, &uart_pdata);
 192
 193         mxc_iomux_setup_multiple_pins(uart2_pins, ARRAY_SIZE(uart2_pins), "uart-2");
 194         mxc_register_device(&mxc_uart_device2, &uart_pdata);
 195
 196         mxc_iomux_setup_pin(MX31_PIN_BATT_LINE__OWIRE, "batt-0wire");
 197         mxc_register_device(&mxc_w1_master_device, NULL);
 198
 199         /* SMSC9215 IRQ pin */
 200         if (!mxc_iomux_setup_pin(IOMUX_MODE(MX31_PIN_GPIO3_1, IOMUX_CONFIG_GPIO),
 201                                 "pcm037-eth"))
 202                 gpio_direction_input(MX31_PIN_GPIO3_1);
 203
 204 #ifdef CONFIG_I2C_IMX
 205         i2c_register_board_info(1, pcm037_i2c_devices,
 206                         ARRAY_SIZE(pcm037_i2c_devices));
 207
 208         mxc_register_device(&mxc_i2c_device1, &pcm037_i2c_1_data);
 209 #endif
 210         mxc_register_device(&mxc_nand_device, &pcm037_nand_board_info);
 211 }
 212
 213 static void __init pcm037_timer_init(void)
 214 {
 215         mx31_clocks_init(26000000);
 216 }
 217
 218 struct sys_timer pcm037_timer = {
 219         .init   = pcm037_timer_init,
 220 };
 221
 222 MACHINE_START(PCM037, "Phytec Phycore pcm037")
 223         /* Maintainer: Pengutronix */
 224         .phys_io        = AIPS1_BASE_ADDR,
 225         .io_pg_offst    = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 226         .boot_params    = PHYS_OFFSET + 0x100,
 227         .map_io         = mxc_map_io,
 228         .init_irq       = mxc_init_irq,
 229         .init_machine   = mxc_board_init,
 230         .timer          = &pcm037_timer,
 231 MACHINE_END
 232