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/smsc911x.h>
  28 #include <linux/interrupt.h>
  29 #include <linux/i2c.h>
  30 #include <linux/i2c/at24.h>
  31 #include <linux/delay.h>
  32 #include <linux/spi/spi.h>
  33 #include <linux/irq.h>
  34
  35 #include <mach/hardware.h>
  36 #include <asm/mach-types.h>
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/time.h>
  39 #include <asm/mach/map.h>
  40 #include <mach/common.h>
  41 #include <mach/imx-uart.h>
  42 #include <mach/iomux-mx3.h>
  43 #include <mach/board-pcm037.h>
  44 #include <mach/mxc_nand.h>
  45 #include <mach/mmc.h>
  46 #ifdef CONFIG_I2C_IMX
  47 #include <mach/i2c.h>
  48 #endif
  49
  50 #include "devices.h"
  51
  52 static unsigned int pcm037_pins[] = {
  53         /* I2C */
  54         MX31_PIN_CSPI2_MOSI__SCL,
  55         MX31_PIN_CSPI2_MISO__SDA,
  56         /* SDHC1 */
  57         MX31_PIN_SD1_DATA3__SD1_DATA3,
  58         MX31_PIN_SD1_DATA2__SD1_DATA2,
  59         MX31_PIN_SD1_DATA1__SD1_DATA1,
  60         MX31_PIN_SD1_DATA0__SD1_DATA0,
  61         MX31_PIN_SD1_CLK__SD1_CLK,
  62         MX31_PIN_SD1_CMD__SD1_CMD,
  63         IOMUX_MODE(MX31_PIN_SCK6, IOMUX_CONFIG_GPIO), /* card detect */
  64         IOMUX_MODE(MX31_PIN_SFS6, IOMUX_CONFIG_GPIO), /* write protect */
  65         /* SPI1 */
  66         MX31_PIN_CSPI1_MOSI__MOSI,
  67         MX31_PIN_CSPI1_MISO__MISO,
  68         MX31_PIN_CSPI1_SCLK__SCLK,
  69         MX31_PIN_CSPI1_SPI_RDY__SPI_RDY,
  70         MX31_PIN_CSPI1_SS0__SS0,
  71         MX31_PIN_CSPI1_SS1__SS1,
  72         MX31_PIN_CSPI1_SS2__SS2,
  73         /* UART1 */
  74         MX31_PIN_CTS1__CTS1,
  75         MX31_PIN_RTS1__RTS1,
  76         MX31_PIN_TXD1__TXD1,
  77         MX31_PIN_RXD1__RXD1,
  78         /* UART2 */
  79         MX31_PIN_TXD2__TXD2,
  80         MX31_PIN_RXD2__RXD2,
  81         MX31_PIN_CTS2__CTS2,
  82         MX31_PIN_RTS2__RTS2,
  83         /* UART3 */
  84         MX31_PIN_CSPI3_MOSI__RXD3,
  85         MX31_PIN_CSPI3_MISO__TXD3,
  86         MX31_PIN_CSPI3_SCLK__RTS3,
  87         MX31_PIN_CSPI3_SPI_RDY__CTS3,
  88         /* LAN9217 irq pin */
  89         IOMUX_MODE(MX31_PIN_GPIO3_1, IOMUX_CONFIG_GPIO),
  90         /* Onewire */
  91         MX31_PIN_BATT_LINE__OWIRE,
  92         /* Framebuffer */
  93         MX31_PIN_LD0__LD0,
  94         MX31_PIN_LD1__LD1,
  95         MX31_PIN_LD2__LD2,
  96         MX31_PIN_LD3__LD3,
  97         MX31_PIN_LD4__LD4,
  98         MX31_PIN_LD5__LD5,
  99         MX31_PIN_LD6__LD6,
 100         MX31_PIN_LD7__LD7,
 101         MX31_PIN_LD8__LD8,
 102         MX31_PIN_LD9__LD9,
 103         MX31_PIN_LD10__LD10,
 104         MX31_PIN_LD11__LD11,
 105         MX31_PIN_LD12__LD12,
 106         MX31_PIN_LD13__LD13,
 107         MX31_PIN_LD14__LD14,
 108         MX31_PIN_LD15__LD15,
 109         MX31_PIN_LD16__LD16,
 110         MX31_PIN_LD17__LD17,
 111         MX31_PIN_VSYNC3__VSYNC3,
 112         MX31_PIN_HSYNC__HSYNC,
 113         MX31_PIN_FPSHIFT__FPSHIFT,
 114         MX31_PIN_DRDY0__DRDY0,
 115         MX31_PIN_D3_REV__D3_REV,
 116         MX31_PIN_CONTRAST__CONTRAST,
 117         MX31_PIN_D3_SPL__D3_SPL,
 118         MX31_PIN_D3_CLS__D3_CLS,
 119         MX31_PIN_LCS0__GPI03_23,
 120 };
 121
 122 static struct physmap_flash_data pcm037_flash_data = {
 123         .width  = 2,
 124 };
 125
 126 static struct resource pcm037_flash_resource = {
 127         .start  = 0xa0000000,
 128         .end    = 0xa1ffffff,
 129         .flags  = IORESOURCE_MEM,
 130 };
 131
 132 static struct platform_device pcm037_flash = {
 133         .name   = "physmap-flash",
 134         .id     = 0,
 135         .dev    = {
 136                 .platform_data  = &pcm037_flash_data,
 137         },
 138         .resource = &pcm037_flash_resource,
 139         .num_resources = 1,
 140 };
 141
 142 static struct imxuart_platform_data uart_pdata = {
 143         .flags = IMXUART_HAVE_RTSCTS,
 144 };
 145
 146 static struct resource smsc911x_resources[] = {
 147         [0] = {
 148                 .start          = CS1_BASE_ADDR + 0x300,
 149                 .end            = CS1_BASE_ADDR + 0x300 + SZ_64K - 1,
 150                 .flags          = IORESOURCE_MEM,
 151         },
 152         [1] = {
 153                 .start          = IOMUX_TO_IRQ(MX31_PIN_GPIO3_1),
 154                 .end            = IOMUX_TO_IRQ(MX31_PIN_GPIO3_1),
 155                 .flags          = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
 156         },
 157 };
 158
 159 static struct smsc911x_platform_config smsc911x_info = {
 160         .flags          = SMSC911X_USE_32BIT | SMSC911X_FORCE_INTERNAL_PHY |
 161                           SMSC911X_SAVE_MAC_ADDRESS,
 162         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 163         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
 164         .phy_interface  = PHY_INTERFACE_MODE_MII,
 165 };
 166
 167 static struct platform_device pcm037_eth = {
 168         .name           = "smsc911x",
 169         .id             = -1,
 170         .num_resources  = ARRAY_SIZE(smsc911x_resources),
 171         .resource       = smsc911x_resources,
 172         .dev            = {
 173                 .platform_data = &smsc911x_info,
 174         },
 175 };
 176
 177 static struct platdata_mtd_ram pcm038_sram_data = {
 178         .bankwidth = 2,
 179 };
 180
 181 static struct resource pcm038_sram_resource = {
 182         .start = CS4_BASE_ADDR,
 183         .end   = CS4_BASE_ADDR + 512 * 1024 - 1,
 184         .flags = IORESOURCE_MEM,
 185 };
 186
 187 static struct platform_device pcm037_sram_device = {
 188         .name = "mtd-ram",
 189         .id = 0,
 190         .dev = {
 191                 .platform_data = &pcm038_sram_data,
 192         },
 193         .num_resources = 1,
 194         .resource = &pcm038_sram_resource,
 195 };
 196
 197 static struct mxc_nand_platform_data pcm037_nand_board_info = {
 198         .width = 1,
 199         .hw_ecc = 1,
 200 };
 201
 202 #ifdef CONFIG_I2C_IMX
 203 static struct imxi2c_platform_data pcm037_i2c_1_data = {
 204         .bitrate = 100000,
 205 };
 206
 207 static struct at24_platform_data board_eeprom = {
 208         .byte_len = 4096,
 209         .page_size = 32,
 210         .flags = AT24_FLAG_ADDR16,
 211 };
 212
 213 static struct i2c_board_info pcm037_i2c_devices[] = {
 214        {
 215                 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
 216                 .platform_data = &board_eeprom,
 217         }, {
 218                 I2C_BOARD_INFO("rtc-pcf8563", 0x51),
 219                 .type = "pcf8563",
 220         }
 221 };
 222 #endif
 223
 224 /* Not connected by default */
 225 #ifdef PCM970_SDHC_RW_SWITCH
 226 static int pcm970_sdhc1_get_ro(struct device *dev)
 227 {
 228         return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_SFS6));
 229 }
 230 #endif
 231
 232 static int pcm970_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
 233                 void *data)
 234 {
 235         int ret;
 236         int gpio_det, gpio_wp;
 237
 238         gpio_det = IOMUX_TO_GPIO(MX31_PIN_SCK6);
 239         gpio_wp = IOMUX_TO_GPIO(MX31_PIN_SFS6);
 240
 241         gpio_direction_input(gpio_det);
 242         gpio_direction_input(gpio_wp);
 243
 244         ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_SCK6), detect_irq,
 245                         IRQF_DISABLED | IRQF_TRIGGER_FALLING,
 246                                 "sdhc-detect", data);
 247         return ret;
 248 }
 249
 250 static void pcm970_sdhc1_exit(struct device *dev, void *data)
 251 {
 252         free_irq(IOMUX_TO_IRQ(MX31_PIN_SCK6), data);
 253 }
 254
 255 static struct imxmmc_platform_data sdhc_pdata = {
 256 #ifdef PCM970_SDHC_RW_SWITCH
 257         .get_ro = pcm970_sdhc1_get_ro,
 258 #endif
 259         .init = pcm970_sdhc1_init,
 260         .exit = pcm970_sdhc1_exit,
 261 };
 262
 263 static struct platform_device *devices[] __initdata = {
 264         &pcm037_flash,
 265         &pcm037_eth,
 266         &pcm037_sram_device,
 267 };
 268
 269 /*
 270  * Board specific initialization.
 271  */
 272 static void __init mxc_board_init(void)
 273 {
 274         mxc_iomux_setup_multiple_pins(pcm037_pins, ARRAY_SIZE(pcm037_pins),
 275                         "pcm037");
 276
 277         platform_add_devices(devices, ARRAY_SIZE(devices));
 278
 279         mxc_register_device(&mxc_uart_device0, &uart_pdata);
 280         mxc_register_device(&mxc_uart_device1, &uart_pdata);
 281         mxc_register_device(&mxc_uart_device2, &uart_pdata);
 282
 283         mxc_register_device(&mxc_w1_master_device, NULL);
 284
 285         /* LAN9217 IRQ pin */
 286         gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO3_1));
 287
 288 #ifdef CONFIG_I2C_IMX
 289         i2c_register_board_info(1, pcm037_i2c_devices,
 290                         ARRAY_SIZE(pcm037_i2c_devices));
 291
 292         mxc_register_device(&mxc_i2c_device1, &pcm037_i2c_1_data);
 293 #endif
 294         mxc_register_device(&mxc_nand_device, &pcm037_nand_board_info);
 295         mxc_register_device(&mxcsdhc_device0, &sdhc_pdata);
 296 }
 297
 298 static void __init pcm037_timer_init(void)
 299 {
 300         mx31_clocks_init(26000000);
 301 }
 302
 303 struct sys_timer pcm037_timer = {
 304         .init   = pcm037_timer_init,
 305 };
 306
 307 MACHINE_START(PCM037, "Phytec Phycore pcm037")
 308         /* Maintainer: Pengutronix */
 309         .phys_io        = AIPS1_BASE_ADDR,
 310         .io_pg_offst    = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 311         .boot_params    = PHYS_OFFSET + 0x100,
 312         .map_io         = mxc_map_io,
 313         .init_irq       = mxc_init_irq,
 314         .init_machine   = mxc_board_init,
 315         .timer          = &pcm037_timer,
 316 MACHINE_END
 317