arch/arm/mach-imx/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/iomux-mx27.h>
  39 #include <mach/mxc_nand.h>
  40 #include <mach/mxc_ehci.h>
  41 #include <mach/ulpi.h>
  42
  43 #include "devices-imx27.h"
  44 #include "devices.h"
  45
  46 static const int pcm038_pins[] __initconst = {
  47         /* UART1 */
  48         PE12_PF_UART1_TXD,
  49         PE13_PF_UART1_RXD,
  50         PE14_PF_UART1_CTS,
  51         PE15_PF_UART1_RTS,
  52         /* UART2 */
  53         PE3_PF_UART2_CTS,
  54         PE4_PF_UART2_RTS,
  55         PE6_PF_UART2_TXD,
  56         PE7_PF_UART2_RXD,
  57         /* UART3 */
  58         PE8_PF_UART3_TXD,
  59         PE9_PF_UART3_RXD,
  60         PE10_PF_UART3_CTS,
  61         PE11_PF_UART3_RTS,
  62         /* FEC */
  63         PD0_AIN_FEC_TXD0,
  64         PD1_AIN_FEC_TXD1,
  65         PD2_AIN_FEC_TXD2,
  66         PD3_AIN_FEC_TXD3,
  67         PD4_AOUT_FEC_RX_ER,
  68         PD5_AOUT_FEC_RXD1,
  69         PD6_AOUT_FEC_RXD2,
  70         PD7_AOUT_FEC_RXD3,
  71         PD8_AF_FEC_MDIO,
  72         PD9_AIN_FEC_MDC,
  73         PD10_AOUT_FEC_CRS,
  74         PD11_AOUT_FEC_TX_CLK,
  75         PD12_AOUT_FEC_RXD0,
  76         PD13_AOUT_FEC_RX_DV,
  77         PD14_AOUT_FEC_RX_CLK,
  78         PD15_AOUT_FEC_COL,
  79         PD16_AIN_FEC_TX_ER,
  80         PF23_AIN_FEC_TX_EN,
  81         /* I2C2 */
  82         PC5_PF_I2C2_SDA,
  83         PC6_PF_I2C2_SCL,
  84         /* SPI1 */
  85         PD25_PF_CSPI1_RDY,
  86         PD29_PF_CSPI1_SCLK,
  87         PD30_PF_CSPI1_MISO,
  88         PD31_PF_CSPI1_MOSI,
  89         /* SSI1 */
  90         PC20_PF_SSI1_FS,
  91         PC21_PF_SSI1_RXD,
  92         PC22_PF_SSI1_TXD,
  93         PC23_PF_SSI1_CLK,
  94         /* SSI4 */
  95         PC16_PF_SSI4_FS,
  96         PC17_PF_SSI4_RXD,
  97         PC18_PF_SSI4_TXD,
  98         PC19_PF_SSI4_CLK,
  99         /* USB host */
 100         PA0_PF_USBH2_CLK,
 101         PA1_PF_USBH2_DIR,
 102         PA2_PF_USBH2_DATA7,
 103         PA3_PF_USBH2_NXT,
 104         PA4_PF_USBH2_STP,
 105         PD19_AF_USBH2_DATA4,
 106         PD20_AF_USBH2_DATA3,
 107         PD21_AF_USBH2_DATA6,
 108         PD22_AF_USBH2_DATA0,
 109         PD23_AF_USBH2_DATA2,
 110         PD24_AF_USBH2_DATA1,
 111         PD26_AF_USBH2_DATA5,
 112 };
 113
 114 /*
 115  * Phytec's PCM038 comes with 2MiB battery buffered SRAM,
 116  * 16 bit width
 117  */
 118
 119 static struct platdata_mtd_ram pcm038_sram_data = {
 120         .bankwidth = 2,
 121 };
 122
 123 static struct resource pcm038_sram_resource = {
 124         .start = MX27_CS1_BASE_ADDR,
 125         .end   = MX27_CS1_BASE_ADDR + 512 * 1024 - 1,
 126         .flags = IORESOURCE_MEM,
 127 };
 128
 129 static struct platform_device pcm038_sram_mtd_device = {
 130         .name = "mtd-ram",
 131         .id = 0,
 132         .dev = {
 133                 .platform_data = &pcm038_sram_data,
 134         },
 135         .num_resources = 1,
 136         .resource = &pcm038_sram_resource,
 137 };
 138
 139 /*
 140  * Phytec's phyCORE-i.MX27 comes with 32MiB flash,
 141  * 16 bit width
 142  */
 143 static struct physmap_flash_data pcm038_flash_data = {
 144         .width = 2,
 145 };
 146
 147 static struct resource pcm038_flash_resource = {
 148         .start = 0xc0000000,
 149         .end   = 0xc1ffffff,
 150         .flags = IORESOURCE_MEM,
 151 };
 152
 153 static struct platform_device pcm038_nor_mtd_device = {
 154         .name = "physmap-flash",
 155         .id = 0,
 156         .dev = {
 157                 .platform_data = &pcm038_flash_data,
 158         },
 159         .num_resources = 1,
 160         .resource = &pcm038_flash_resource,
 161 };
 162
 163 static const struct imxuart_platform_data uart_pdata __initconst = {
 164         .flags = IMXUART_HAVE_RTSCTS,
 165 };
 166
 167 static const struct mxc_nand_platform_data
 168 pcm038_nand_board_info __initconst = {
 169         .width = 1,
 170         .hw_ecc = 1,
 171 };
 172
 173 static struct platform_device *platform_devices[] __initdata = {
 174         &pcm038_nor_mtd_device,
 175         &pcm038_sram_mtd_device,
 176         &mxc_wdt,
 177 };
 178
 179 /* On pcm038 there's a sram attached to CS1, we enable the chipselect here and
 180  * setup other stuffs to access the sram. */
 181 static void __init pcm038_init_sram(void)
 182 {
 183         mx27_setup_weimcs(1, 0x0000d843, 0x22252521, 0x22220a00);
 184 }
 185
 186 static const struct imxi2c_platform_data pcm038_i2c1_data __initconst = {
 187         .bitrate = 100000,
 188 };
 189
 190 static struct at24_platform_data board_eeprom = {
 191         .byte_len = 4096,
 192         .page_size = 32,
 193         .flags = AT24_FLAG_ADDR16,
 194 };
 195
 196 static struct i2c_board_info pcm038_i2c_devices[] = {
 197         {
 198                 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
 199                 .platform_data = &board_eeprom,
 200         }, {
 201                 I2C_BOARD_INFO("pcf8563", 0x51),
 202         }, {
 203                 I2C_BOARD_INFO("lm75", 0x4a),
 204         }
 205 };
 206
 207 static int pcm038_spi_cs[] = {GPIO_PORTD + 28};
 208
 209 static const struct spi_imx_master pcm038_spi0_data __initconst = {
 210         .chipselect = pcm038_spi_cs,
 211         .num_chipselect = ARRAY_SIZE(pcm038_spi_cs),
 212 };
 213
 214 static struct regulator_consumer_supply sdhc1_consumers[] = {
 215         {
 216                 .dev    = &mxc_sdhc_device1.dev,
 217                 .supply = "sdhc_vcc",
 218         },
 219 };
 220
 221 static struct regulator_init_data sdhc1_data = {
 222         .constraints = {
 223                 .min_uV = 3000000,
 224                 .max_uV = 3400000,
 225                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 226                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 227                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
 228                         REGULATOR_MODE_FAST,
 229                 .always_on = 0,
 230                 .boot_on = 0,
 231         },
 232         .num_consumer_supplies = ARRAY_SIZE(sdhc1_consumers),
 233         .consumer_supplies = sdhc1_consumers,
 234 };
 235
 236 static struct regulator_consumer_supply cam_consumers[] = {
 237         {
 238                 .dev    = NULL,
 239                 .supply = "imx_cam_vcc",
 240         },
 241 };
 242
 243 static struct regulator_init_data cam_data = {
 244         .constraints = {
 245                 .min_uV = 3000000,
 246                 .max_uV = 3400000,
 247                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 248                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 249                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
 250                         REGULATOR_MODE_FAST,
 251                 .always_on = 0,
 252                 .boot_on = 0,
 253         },
 254         .num_consumer_supplies = ARRAY_SIZE(cam_consumers),
 255         .consumer_supplies = cam_consumers,
 256 };
 257
 258 static struct mc13783_regulator_init_data pcm038_regulators[] = {
 259         {
 260                 .id = MC13783_REGU_VCAM,
 261                 .init_data = &cam_data,
 262         }, {
 263                 .id = MC13783_REGU_VMMC1,
 264                 .init_data = &sdhc1_data,
 265         },
 266 };
 267
 268 static struct mc13783_platform_data pcm038_pmic = {
 269         .regulators = pcm038_regulators,
 270         .num_regulators = ARRAY_SIZE(pcm038_regulators),
 271         .flags = MC13783_USE_ADC | MC13783_USE_REGULATOR |
 272                  MC13783_USE_TOUCHSCREEN,
 273 };
 274
 275 static struct spi_board_info pcm038_spi_board_info[] __initdata = {
 276         {
 277                 .modalias = "mc13783",
 278                 .irq = IRQ_GPIOB(23),
 279                 .max_speed_hz = 300000,
 280                 .bus_num = 0,
 281                 .chip_select = 0,
 282                 .platform_data = &pcm038_pmic,
 283                 .mode = SPI_CS_HIGH,
 284         }
 285 };
 286
 287 static struct mxc_usbh_platform_data usbh2_pdata = {
 288         .portsc = MXC_EHCI_MODE_ULPI,
 289         .flags  = MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_INTERFACE_DIFF_UNI,
 290 };
 291
 292 static void __init pcm038_init(void)
 293 {
 294         mxc_gpio_setup_multiple_pins(pcm038_pins, ARRAY_SIZE(pcm038_pins),
 295                         "PCM038");
 296
 297         pcm038_init_sram();
 298
 299         imx27_add_imx_uart0(&uart_pdata);
 300         imx27_add_imx_uart1(&uart_pdata);
 301         imx27_add_imx_uart2(&uart_pdata);
 302
 303         mxc_gpio_mode(PE16_AF_OWIRE);
 304         imx27_add_mxc_nand(&pcm038_nand_board_info);
 305
 306         /* only the i2c master 1 is used on this CPU card */
 307         i2c_register_board_info(1, pcm038_i2c_devices,
 308                                 ARRAY_SIZE(pcm038_i2c_devices));
 309
 310         imx27_add_imx_i2c(1, &pcm038_i2c1_data);
 311
 312         /* PE18 for user-LED D40 */
 313         mxc_gpio_mode(GPIO_PORTE | 18 | GPIO_GPIO | GPIO_OUT);
 314
 315         mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
 316
 317         /* MC13783 IRQ */
 318         mxc_gpio_mode(GPIO_PORTB | 23 | GPIO_GPIO | GPIO_IN);
 319
 320         imx27_add_spi_imx0(&pcm038_spi0_data);
 321         spi_register_board_info(pcm038_spi_board_info,
 322                                 ARRAY_SIZE(pcm038_spi_board_info));
 323
 324         mxc_register_device(&mxc_usbh2, &usbh2_pdata);
 325
 326         imx27_add_fec(NULL);
 327         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 328         imx27_add_mxc_w1(NULL);
 329
 330 #ifdef CONFIG_MACH_PCM970_BASEBOARD
 331         pcm970_baseboard_init();
 332 #endif
 333 }
 334
 335 static void __init pcm038_timer_init(void)
 336 {
 337         mx27_clocks_init(26000000);
 338 }
 339
 340 static struct sys_timer pcm038_timer = {
 341         .init = pcm038_timer_init,
 342 };
 343
 344 MACHINE_START(PCM038, "phyCORE-i.MX27")
 345         .boot_params    = MX27_PHYS_OFFSET + 0x100,
 346         .map_io         = mx27_map_io,
 347         .init_irq       = mx27_init_irq,
 348         .init_machine   = pcm038_init,
 349         .timer          = &pcm038_timer,
 350 MACHINE_END