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 #include <mach/mmc.h>
  43 #ifdef CONFIG_I2C_IMX
  44 #include <mach/i2c.h>
  45 #endif
  46
  47 #include "devices.h"
  48
  49 static struct physmap_flash_data pcm037_flash_data = {
  50         .width  = 2,
  51 };
  52
  53 static struct resource pcm037_flash_resource = {
  54         .start  = 0xa0000000,
  55         .end    = 0xa1ffffff,
  56         .flags  = IORESOURCE_MEM,
  57 };
  58
  59 static struct platform_device pcm037_flash = {
  60         .name   = "physmap-flash",
  61         .id     = 0,
  62         .dev    = {
  63                 .platform_data  = &pcm037_flash_data,
  64         },
  65         .resource = &pcm037_flash_resource,
  66         .num_resources = 1,
  67 };
  68
  69 static struct imxuart_platform_data uart_pdata = {
  70         .flags = IMXUART_HAVE_RTSCTS,
  71 };
  72
  73 static struct resource smc911x_resources[] = {
  74         [0] = {
  75                 .start          = CS1_BASE_ADDR + 0x300,
  76                 .end            = CS1_BASE_ADDR + 0x300 + SZ_64K - 1,
  77                 .flags          = IORESOURCE_MEM,
  78         },
  79         [1] = {
  80                 .start          = IOMUX_TO_IRQ(MX31_PIN_GPIO3_1),
  81                 .end            = IOMUX_TO_IRQ(MX31_PIN_GPIO3_1),
  82                 .flags          = IORESOURCE_IRQ,
  83         },
  84 };
  85
  86 static struct smc911x_platdata smc911x_info = {
  87         .flags          = SMC911X_USE_32BIT,
  88         .irq_flags      = IRQF_SHARED | IRQF_TRIGGER_LOW,
  89 };
  90
  91 static struct platform_device pcm037_eth = {
  92         .name           = "smc911x",
  93         .id             = -1,
  94         .num_resources  = ARRAY_SIZE(smc911x_resources),
  95         .resource       = smc911x_resources,
  96         .dev            = {
  97                 .platform_data = &smc911x_info,
  98         },
  99 };
 100
 101 static struct platdata_mtd_ram pcm038_sram_data = {
 102         .bankwidth = 2,
 103 };
 104
 105 static struct resource pcm038_sram_resource = {
 106         .start = CS4_BASE_ADDR,
 107         .end   = CS4_BASE_ADDR + 512 * 1024 - 1,
 108         .flags = IORESOURCE_MEM,
 109 };
 110
 111 static struct platform_device pcm037_sram_device = {
 112         .name = "mtd-ram",
 113         .id = 0,
 114         .dev = {
 115                 .platform_data = &pcm038_sram_data,
 116         },
 117         .num_resources = 1,
 118         .resource = &pcm038_sram_resource,
 119 };
 120
 121 static struct mxc_nand_platform_data pcm037_nand_board_info = {
 122         .width = 1,
 123         .hw_ecc = 1,
 124 };
 125
 126 #ifdef CONFIG_I2C_IMX
 127 static int i2c_1_pins[] = {
 128         MX31_PIN_CSPI2_MOSI__SCL,
 129         MX31_PIN_CSPI2_MISO__SDA,
 130 };
 131
 132 static int pcm037_i2c_1_init(struct device *dev)
 133 {
 134         return mxc_iomux_setup_multiple_pins(i2c_1_pins, ARRAY_SIZE(i2c_1_pins),
 135                         "i2c-1");
 136 }
 137
 138 static void pcm037_i2c_1_exit(struct device *dev)
 139 {
 140         mxc_iomux_release_multiple_pins(i2c_1_pins, ARRAY_SIZE(i2c_1_pins));
 141 }
 142
 143 static struct imxi2c_platform_data pcm037_i2c_1_data = {
 144         .bitrate = 100000,
 145         .init = pcm037_i2c_1_init,
 146         .exit = pcm037_i2c_1_exit,
 147 };
 148
 149 static struct at24_platform_data board_eeprom = {
 150         .byte_len = 4096,
 151         .page_size = 32,
 152         .flags = AT24_FLAG_ADDR16,
 153 };
 154
 155 static struct i2c_board_info pcm037_i2c_devices[] = {
 156        {
 157                 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
 158                 .platform_data = &board_eeprom,
 159         }, {
 160                 I2C_BOARD_INFO("rtc-pcf8563", 0x51),
 161                 .type = "pcf8563",
 162         }
 163 };
 164 #endif
 165
 166 static int sdhc1_pins[] = {
 167         MX31_PIN_SD1_DATA3__SD1_DATA3,
 168         MX31_PIN_SD1_DATA2__SD1_DATA2,
 169         MX31_PIN_SD1_DATA1__SD1_DATA1,
 170         MX31_PIN_SD1_DATA0__SD1_DATA0,
 171         MX31_PIN_SD1_CLK__SD1_CLK,
 172         MX31_PIN_SD1_CMD__SD1_CMD,
 173 };
 174
 175 static int pcm970_sdhc1_init(struct device *dev, irq_handler_t h, void *data)
 176 {
 177         return mxc_iomux_setup_multiple_pins(sdhc1_pins, ARRAY_SIZE(sdhc1_pins),
 178                                 "sdhc-1");
 179 }
 180
 181 static void pcm970_sdhc1_exit(struct device *dev, void *data)
 182 {
 183         mxc_iomux_release_multiple_pins(sdhc1_pins, ARRAY_SIZE(sdhc1_pins));
 184 }
 185
 186 /* No card and rw detection at the moment */
 187 static struct imxmmc_platform_data sdhc_pdata = {
 188         .init = pcm970_sdhc1_init,
 189         .exit = pcm970_sdhc1_exit,
 190 };
 191
 192 static struct platform_device *devices[] __initdata = {
 193         &pcm037_flash,
 194         &pcm037_eth,
 195         &pcm037_sram_device,
 196 };
 197
 198 static int uart0_pins[] = {
 199         MX31_PIN_CTS1__CTS1,
 200         MX31_PIN_RTS1__RTS1,
 201         MX31_PIN_TXD1__TXD1,
 202         MX31_PIN_RXD1__RXD1
 203 };
 204
 205 static int uart2_pins[] = {
 206         MX31_PIN_CSPI3_MOSI__RXD3,
 207         MX31_PIN_CSPI3_MISO__TXD3
 208 };
 209
 210 /*
 211  * Board specific initialization.
 212  */
 213 static void __init mxc_board_init(void)
 214 {
 215         platform_add_devices(devices, ARRAY_SIZE(devices));
 216
 217         mxc_iomux_setup_multiple_pins(uart0_pins, ARRAY_SIZE(uart0_pins), "uart-0");
 218         mxc_register_device(&mxc_uart_device0, &uart_pdata);
 219
 220         mxc_iomux_setup_multiple_pins(uart2_pins, ARRAY_SIZE(uart2_pins), "uart-2");
 221         mxc_register_device(&mxc_uart_device2, &uart_pdata);
 222
 223         mxc_iomux_setup_pin(MX31_PIN_BATT_LINE__OWIRE, "batt-0wire");
 224         mxc_register_device(&mxc_w1_master_device, NULL);
 225
 226         /* SMSC9215 IRQ pin */
 227         if (!mxc_iomux_setup_pin(IOMUX_MODE(MX31_PIN_GPIO3_1, IOMUX_CONFIG_GPIO),
 228                                 "pcm037-eth"))
 229                 gpio_direction_input(MX31_PIN_GPIO3_1);
 230
 231 #ifdef CONFIG_I2C_IMX
 232         i2c_register_board_info(1, pcm037_i2c_devices,
 233                         ARRAY_SIZE(pcm037_i2c_devices));
 234
 235         mxc_register_device(&mxc_i2c_device1, &pcm037_i2c_1_data);
 236 #endif
 237         mxc_register_device(&mxc_nand_device, &pcm037_nand_board_info);
 238         mxc_register_device(&mxcsdhc_device0, &sdhc_pdata);
 239 }
 240
 241 static void __init pcm037_timer_init(void)
 242 {
 243         mx31_clocks_init(26000000);
 244 }
 245
 246 struct sys_timer pcm037_timer = {
 247         .init   = pcm037_timer_init,
 248 };
 249
 250 MACHINE_START(PCM037, "Phytec Phycore pcm037")
 251         /* Maintainer: Pengutronix */
 252         .phys_io        = AIPS1_BASE_ADDR,
 253         .io_pg_offst    = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 254         .boot_params    = PHYS_OFFSET + 0x100,
 255         .map_io         = mxc_map_io,
 256         .init_irq       = mxc_init_irq,
 257         .init_machine   = mxc_board_init,
 258         .timer          = &pcm037_timer,
 259 MACHINE_END
 260