arch/arm/mach-mx2/mach-pcm038.c

   1 /*
   2  * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
   3  * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   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., 51 Franklin Street, Fifth Floor, Boston,
  17  * MA 02110-1301, USA.
  18  */
  19
  20 #include <linux/i2c.h>
  21 #include <linux/i2c/at24.h>
  22 #include <linux/io.h>
  23 #include <linux/mtd/plat-ram.h>
  24 #include <linux/mtd/physmap.h>
  25 #include <linux/platform_device.h>
  26 #include <linux/regulator/machine.h>
  27 #include <linux/mfd/mc13783.h>
  28 #include <linux/spi/spi.h>
  29 #include <linux/irq.h>
  30
  31 #include <asm/mach-types.h>
  32 #include <asm/mach/arch.h>
  33 #include <asm/mach/time.h>
  34
  35 #include <mach/board-pcm038.h>
  36 #include <mach/common.h>
  37 #include <mach/hardware.h>
  38 #include <mach/i2c.h>
  39 #include <mach/iomux-mx27.h>
  40 #include <mach/imx-uart.h>
  41 #include <mach/mxc_nand.h>
  42 #include <mach/spi.h>
  43 #include <mach/mxc_ehci.h>
  44 #include <mach/ulpi.h>
  45
  46 #include "devices.h"
  47
  48 static int pcm038_pins[] = {
  49         /* UART1 */
  50         PE12_PF_UART1_TXD,
  51         PE13_PF_UART1_RXD,
  52         PE14_PF_UART1_CTS,
  53         PE15_PF_UART1_RTS,
  54         /* UART2 */
  55         PE3_PF_UART2_CTS,
  56         PE4_PF_UART2_RTS,
  57         PE6_PF_UART2_TXD,
  58         PE7_PF_UART2_RXD,
  59         /* UART3 */
  60         PE8_PF_UART3_TXD,
  61         PE9_PF_UART3_RXD,
  62         PE10_PF_UART3_CTS,
  63         PE11_PF_UART3_RTS,
  64         /* FEC */
  65         PD0_AIN_FEC_TXD0,
  66         PD1_AIN_FEC_TXD1,
  67         PD2_AIN_FEC_TXD2,
  68         PD3_AIN_FEC_TXD3,
  69         PD4_AOUT_FEC_RX_ER,
  70         PD5_AOUT_FEC_RXD1,
  71         PD6_AOUT_FEC_RXD2,
  72         PD7_AOUT_FEC_RXD3,
  73         PD8_AF_FEC_MDIO,
  74         PD9_AIN_FEC_MDC,
  75         PD10_AOUT_FEC_CRS,
  76         PD11_AOUT_FEC_TX_CLK,
  77         PD12_AOUT_FEC_RXD0,
  78         PD13_AOUT_FEC_RX_DV,
  79         PD14_AOUT_FEC_RX_CLK,
  80         PD15_AOUT_FEC_COL,
  81         PD16_AIN_FEC_TX_ER,
  82         PF23_AIN_FEC_TX_EN,
  83         /* I2C2 */
  84         PC5_PF_I2C2_SDA,
  85         PC6_PF_I2C2_SCL,
  86         /* SPI1 */
  87         PD25_PF_CSPI1_RDY,
  88         PD29_PF_CSPI1_SCLK,
  89         PD30_PF_CSPI1_MISO,
  90         PD31_PF_CSPI1_MOSI,
  91         /* SSI1 */
  92         PC20_PF_SSI1_FS,
  93         PC21_PF_SSI1_RXD,
  94         PC22_PF_SSI1_TXD,
  95         PC23_PF_SSI1_CLK,
  96         /* SSI4 */
  97         PC16_PF_SSI4_FS,
  98         PC17_PF_SSI4_RXD,
  99         PC18_PF_SSI4_TXD,
 100         PC19_PF_SSI4_CLK,
 101         /* USB host */
 102         PA0_PF_USBH2_CLK,
 103         PA1_PF_USBH2_DIR,
 104         PA2_PF_USBH2_DATA7,
 105         PA3_PF_USBH2_NXT,
 106         PA4_PF_USBH2_STP,
 107         PD19_AF_USBH2_DATA4,
 108         PD20_AF_USBH2_DATA3,
 109         PD21_AF_USBH2_DATA6,
 110         PD22_AF_USBH2_DATA0,
 111         PD23_AF_USBH2_DATA2,
 112         PD24_AF_USBH2_DATA1,
 113         PD26_AF_USBH2_DATA5,
 114 };
 115
 116 /*
 117  * Phytec's PCM038 comes with 2MiB battery buffered SRAM,
 118  * 16 bit width
 119  */
 120
 121 static struct platdata_mtd_ram pcm038_sram_data = {
 122         .bankwidth = 2,
 123 };
 124
 125 static struct resource pcm038_sram_resource = {
 126         .start = MX27_CS1_BASE_ADDR,
 127         .end   = MX27_CS1_BASE_ADDR + 512 * 1024 - 1,
 128         .flags = IORESOURCE_MEM,
 129 };
 130
 131 static struct platform_device pcm038_sram_mtd_device = {
 132         .name = "mtd-ram",
 133         .id = 0,
 134         .dev = {
 135                 .platform_data = &pcm038_sram_data,
 136         },
 137         .num_resources = 1,
 138         .resource = &pcm038_sram_resource,
 139 };
 140
 141 /*
 142  * Phytec's phyCORE-i.MX27 comes with 32MiB flash,
 143  * 16 bit width
 144  */
 145 static struct physmap_flash_data pcm038_flash_data = {
 146         .width = 2,
 147 };
 148
 149 static struct resource pcm038_flash_resource = {
 150         .start = 0xc0000000,
 151         .end   = 0xc1ffffff,
 152         .flags = IORESOURCE_MEM,
 153 };
 154
 155 static struct platform_device pcm038_nor_mtd_device = {
 156         .name = "physmap-flash",
 157         .id = 0,
 158         .dev = {
 159                 .platform_data = &pcm038_flash_data,
 160         },
 161         .num_resources = 1,
 162         .resource = &pcm038_flash_resource,
 163 };
 164
 165 static struct imxuart_platform_data uart_pdata[] = {
 166         {
 167                 .flags = IMXUART_HAVE_RTSCTS,
 168         }, {
 169                 .flags = IMXUART_HAVE_RTSCTS,
 170         }, {
 171                 .flags = IMXUART_HAVE_RTSCTS,
 172         },
 173 };
 174
 175 static struct mxc_nand_platform_data pcm038_nand_board_info = {
 176         .width = 1,
 177         .hw_ecc = 1,
 178 };
 179
 180 static struct platform_device *platform_devices[] __initdata = {
 181         &pcm038_nor_mtd_device,
 182         &mxc_w1_master_device,
 183         &mxc_fec_device,
 184         &pcm038_sram_mtd_device,
 185 };
 186
 187 /* On pcm038 there's a sram attached to CS1, we enable the chipselect here and
 188  * setup other stuffs to access the sram. */
 189 static void __init pcm038_init_sram(void)
 190 {
 191         mx27_setup_weimcs(1, 0x0000d843, 0x22252521, 0x22220a00);
 192 }
 193
 194 static struct imxi2c_platform_data pcm038_i2c_1_data = {
 195         .bitrate = 100000,
 196 };
 197
 198 static struct at24_platform_data board_eeprom = {
 199         .byte_len = 4096,
 200         .page_size = 32,
 201         .flags = AT24_FLAG_ADDR16,
 202 };
 203
 204 static struct i2c_board_info pcm038_i2c_devices[] = {
 205         {
 206                 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
 207                 .platform_data = &board_eeprom,
 208         }, {
 209                 I2C_BOARD_INFO("pcf8563", 0x51),
 210         }, {
 211                 I2C_BOARD_INFO("lm75", 0x4a),
 212         }
 213 };
 214
 215 static int pcm038_spi_cs[] = {GPIO_PORTD + 28};
 216
 217 static struct spi_imx_master pcm038_spi_0_data = {
 218         .chipselect = pcm038_spi_cs,
 219         .num_chipselect = ARRAY_SIZE(pcm038_spi_cs),
 220 };
 221
 222 static struct regulator_consumer_supply sdhc1_consumers[] = {
 223         {
 224                 .dev    = &mxc_sdhc_device1.dev,
 225                 .supply = "sdhc_vcc",
 226         },
 227 };
 228
 229 static struct regulator_init_data sdhc1_data = {
 230         .constraints = {
 231                 .min_uV = 3000000,
 232                 .max_uV = 3400000,
 233                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 234                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 235                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
 236                         REGULATOR_MODE_FAST,
 237                 .always_on = 0,
 238                 .boot_on = 0,
 239         },
 240         .num_consumer_supplies = ARRAY_SIZE(sdhc1_consumers),
 241         .consumer_supplies = sdhc1_consumers,
 242 };
 243
 244 static struct regulator_consumer_supply cam_consumers[] = {
 245         {
 246                 .dev    = NULL,
 247                 .supply = "imx_cam_vcc",
 248         },
 249 };
 250
 251 static struct regulator_init_data cam_data = {
 252         .constraints = {
 253                 .min_uV = 3000000,
 254                 .max_uV = 3400000,
 255                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 256                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 257                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
 258                         REGULATOR_MODE_FAST,
 259                 .always_on = 0,
 260                 .boot_on = 0,
 261         },
 262         .num_consumer_supplies = ARRAY_SIZE(cam_consumers),
 263         .consumer_supplies = cam_consumers,
 264 };
 265
 266 struct mc13783_regulator_init_data pcm038_regulators[] = {
 267         {
 268                 .id = MC13783_REGU_VCAM,
 269                 .init_data = &cam_data,
 270         }, {
 271                 .id = MC13783_REGU_VMMC1,
 272                 .init_data = &sdhc1_data,
 273         },
 274 };
 275
 276 static struct mc13783_platform_data pcm038_pmic = {
 277         .regulators = pcm038_regulators,
 278         .num_regulators = ARRAY_SIZE(pcm038_regulators),
 279         .flags = MC13783_USE_ADC | MC13783_USE_REGULATOR |
 280                  MC13783_USE_TOUCHSCREEN,
 281 };
 282
 283 static struct spi_board_info pcm038_spi_board_info[] __initdata = {
 284         {
 285                 .modalias = "mc13783",
 286                 .irq = IRQ_GPIOB(23),
 287                 .max_speed_hz = 300000,
 288                 .bus_num = 0,
 289                 .chip_select = 0,
 290                 .platform_data = &pcm038_pmic,
 291                 .mode = SPI_CS_HIGH,
 292         }
 293 };
 294
 295 static struct mxc_usbh_platform_data usbh2_pdata = {
 296         .portsc = MXC_EHCI_MODE_ULPI,
 297         .flags  = MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_INTERFACE_DIFF_UNI,
 298 };
 299
 300 static void __init pcm038_init(void)
 301 {
 302         mxc_gpio_setup_multiple_pins(pcm038_pins, ARRAY_SIZE(pcm038_pins),
 303                         "PCM038");
 304
 305         pcm038_init_sram();
 306
 307         mxc_register_device(&mxc_uart_device0, &uart_pdata[0]);
 308         mxc_register_device(&mxc_uart_device1, &uart_pdata[1]);
 309         mxc_register_device(&mxc_uart_device2, &uart_pdata[2]);
 310
 311         mxc_gpio_mode(PE16_AF_OWIRE);
 312         mxc_register_device(&imx27_nand_device, &pcm038_nand_board_info);
 313
 314         /* only the i2c master 1 is used on this CPU card */
 315         i2c_register_board_info(1, pcm038_i2c_devices,
 316                                 ARRAY_SIZE(pcm038_i2c_devices));
 317
 318         mxc_register_device(&mxc_i2c_device1, &pcm038_i2c_1_data);
 319
 320         /* PE18 for user-LED D40 */
 321         mxc_gpio_mode(GPIO_PORTE | 18 | GPIO_GPIO | GPIO_OUT);
 322
 323         mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
 324
 325         /* MC13783 IRQ */
 326         mxc_gpio_mode(GPIO_PORTB | 23 | GPIO_GPIO | GPIO_IN);
 327
 328         mxc_register_device(&mxc_spi_device0, &pcm038_spi_0_data);
 329         spi_register_board_info(pcm038_spi_board_info,
 330                                 ARRAY_SIZE(pcm038_spi_board_info));
 331
 332         mxc_register_device(&mxc_usbh2, &usbh2_pdata);
 333
 334         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 335
 336 #ifdef CONFIG_MACH_PCM970_BASEBOARD
 337         pcm970_baseboard_init();
 338 #endif
 339 }
 340
 341 static void __init pcm038_timer_init(void)
 342 {
 343         mx27_clocks_init(26000000);
 344 }
 345
 346 static struct sys_timer pcm038_timer = {
 347         .init = pcm038_timer_init,
 348 };
 349
 350 MACHINE_START(PCM038, "phyCORE-i.MX27")
 351         .phys_io        = MX27_AIPI_BASE_ADDR,
 352         .io_pg_offst    = ((MX27_AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 353         .boot_params    = MX27_PHYS_OFFSET + 0x100,
 354         .map_io         = mx27_map_io,
 355         .init_irq       = mx27_init_irq,
 356         .init_machine   = pcm038_init,
 357         .timer          = &pcm038_timer,
 358 MACHINE_END