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/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-imx27.h"
  47 #include "devices.h"
  48
  49 static int pcm038_pins[] = {
  50         /* UART1 */
  51         PE12_PF_UART1_TXD,
  52         PE13_PF_UART1_RXD,
  53         PE14_PF_UART1_CTS,
  54         PE15_PF_UART1_RTS,
  55         /* UART2 */
  56         PE3_PF_UART2_CTS,
  57         PE4_PF_UART2_RTS,
  58         PE6_PF_UART2_TXD,
  59         PE7_PF_UART2_RXD,
  60         /* UART3 */
  61         PE8_PF_UART3_TXD,
  62         PE9_PF_UART3_RXD,
  63         PE10_PF_UART3_CTS,
  64         PE11_PF_UART3_RTS,
  65         /* FEC */
  66         PD0_AIN_FEC_TXD0,
  67         PD1_AIN_FEC_TXD1,
  68         PD2_AIN_FEC_TXD2,
  69         PD3_AIN_FEC_TXD3,
  70         PD4_AOUT_FEC_RX_ER,
  71         PD5_AOUT_FEC_RXD1,
  72         PD6_AOUT_FEC_RXD2,
  73         PD7_AOUT_FEC_RXD3,
  74         PD8_AF_FEC_MDIO,
  75         PD9_AIN_FEC_MDC,
  76         PD10_AOUT_FEC_CRS,
  77         PD11_AOUT_FEC_TX_CLK,
  78         PD12_AOUT_FEC_RXD0,
  79         PD13_AOUT_FEC_RX_DV,
  80         PD14_AOUT_FEC_RX_CLK,
  81         PD15_AOUT_FEC_COL,
  82         PD16_AIN_FEC_TX_ER,
  83         PF23_AIN_FEC_TX_EN,
  84         /* I2C2 */
  85         PC5_PF_I2C2_SDA,
  86         PC6_PF_I2C2_SCL,
  87         /* SPI1 */
  88         PD25_PF_CSPI1_RDY,
  89         PD29_PF_CSPI1_SCLK,
  90         PD30_PF_CSPI1_MISO,
  91         PD31_PF_CSPI1_MOSI,
  92         /* SSI1 */
  93         PC20_PF_SSI1_FS,
  94         PC21_PF_SSI1_RXD,
  95         PC22_PF_SSI1_TXD,
  96         PC23_PF_SSI1_CLK,
  97         /* SSI4 */
  98         PC16_PF_SSI4_FS,
  99         PC17_PF_SSI4_RXD,
 100         PC18_PF_SSI4_TXD,
 101         PC19_PF_SSI4_CLK,
 102         /* USB host */
 103         PA0_PF_USBH2_CLK,
 104         PA1_PF_USBH2_DIR,
 105         PA2_PF_USBH2_DATA7,
 106         PA3_PF_USBH2_NXT,
 107         PA4_PF_USBH2_STP,
 108         PD19_AF_USBH2_DATA4,
 109         PD20_AF_USBH2_DATA3,
 110         PD21_AF_USBH2_DATA6,
 111         PD22_AF_USBH2_DATA0,
 112         PD23_AF_USBH2_DATA2,
 113         PD24_AF_USBH2_DATA1,
 114         PD26_AF_USBH2_DATA5,
 115 };
 116
 117 /*
 118  * Phytec's PCM038 comes with 2MiB battery buffered SRAM,
 119  * 16 bit width
 120  */
 121
 122 static struct platdata_mtd_ram pcm038_sram_data = {
 123         .bankwidth = 2,
 124 };
 125
 126 static struct resource pcm038_sram_resource = {
 127         .start = MX27_CS1_BASE_ADDR,
 128         .end   = MX27_CS1_BASE_ADDR + 512 * 1024 - 1,
 129         .flags = IORESOURCE_MEM,
 130 };
 131
 132 static struct platform_device pcm038_sram_mtd_device = {
 133         .name = "mtd-ram",
 134         .id = 0,
 135         .dev = {
 136                 .platform_data = &pcm038_sram_data,
 137         },
 138         .num_resources = 1,
 139         .resource = &pcm038_sram_resource,
 140 };
 141
 142 /*
 143  * Phytec's phyCORE-i.MX27 comes with 32MiB flash,
 144  * 16 bit width
 145  */
 146 static struct physmap_flash_data pcm038_flash_data = {
 147         .width = 2,
 148 };
 149
 150 static struct resource pcm038_flash_resource = {
 151         .start = 0xc0000000,
 152         .end   = 0xc1ffffff,
 153         .flags = IORESOURCE_MEM,
 154 };
 155
 156 static struct platform_device pcm038_nor_mtd_device = {
 157         .name = "physmap-flash",
 158         .id = 0,
 159         .dev = {
 160                 .platform_data = &pcm038_flash_data,
 161         },
 162         .num_resources = 1,
 163         .resource = &pcm038_flash_resource,
 164 };
 165
 166 static struct imxuart_platform_data uart_pdata[] = {
 167         {
 168                 .flags = IMXUART_HAVE_RTSCTS,
 169         }, {
 170                 .flags = IMXUART_HAVE_RTSCTS,
 171         }, {
 172                 .flags = IMXUART_HAVE_RTSCTS,
 173         },
 174 };
 175
 176 static const struct mxc_nand_platform_data
 177 pcm038_nand_board_info __initconst = {
 178         .width = 1,
 179         .hw_ecc = 1,
 180 };
 181
 182 static struct platform_device *platform_devices[] __initdata = {
 183         &pcm038_nor_mtd_device,
 184         &mxc_w1_master_device,
 185         &mxc_fec_device,
 186         &pcm038_sram_mtd_device,
 187         &mxc_wdt,
 188 };
 189
 190 /* On pcm038 there's a sram attached to CS1, we enable the chipselect here and
 191  * setup other stuffs to access the sram. */
 192 static void __init pcm038_init_sram(void)
 193 {
 194         mx27_setup_weimcs(1, 0x0000d843, 0x22252521, 0x22220a00);
 195 }
 196
 197 static struct imxi2c_platform_data pcm038_i2c_1_data = {
 198         .bitrate = 100000,
 199 };
 200
 201 static struct at24_platform_data board_eeprom = {
 202         .byte_len = 4096,
 203         .page_size = 32,
 204         .flags = AT24_FLAG_ADDR16,
 205 };
 206
 207 static struct i2c_board_info pcm038_i2c_devices[] = {
 208         {
 209                 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
 210                 .platform_data = &board_eeprom,
 211         }, {
 212                 I2C_BOARD_INFO("pcf8563", 0x51),
 213         }, {
 214                 I2C_BOARD_INFO("lm75", 0x4a),
 215         }
 216 };
 217
 218 static int pcm038_spi_cs[] = {GPIO_PORTD + 28};
 219
 220 static struct spi_imx_master pcm038_spi_0_data = {
 221         .chipselect = pcm038_spi_cs,
 222         .num_chipselect = ARRAY_SIZE(pcm038_spi_cs),
 223 };
 224
 225 static struct regulator_consumer_supply sdhc1_consumers[] = {
 226         {
 227                 .dev    = &mxc_sdhc_device1.dev,
 228                 .supply = "sdhc_vcc",
 229         },
 230 };
 231
 232 static struct regulator_init_data sdhc1_data = {
 233         .constraints = {
 234                 .min_uV = 3000000,
 235                 .max_uV = 3400000,
 236                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 237                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 238                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
 239                         REGULATOR_MODE_FAST,
 240                 .always_on = 0,
 241                 .boot_on = 0,
 242         },
 243         .num_consumer_supplies = ARRAY_SIZE(sdhc1_consumers),
 244         .consumer_supplies = sdhc1_consumers,
 245 };
 246
 247 static struct regulator_consumer_supply cam_consumers[] = {
 248         {
 249                 .dev    = NULL,
 250                 .supply = "imx_cam_vcc",
 251         },
 252 };
 253
 254 static struct regulator_init_data cam_data = {
 255         .constraints = {
 256                 .min_uV = 3000000,
 257                 .max_uV = 3400000,
 258                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 259                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 260                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
 261                         REGULATOR_MODE_FAST,
 262                 .always_on = 0,
 263                 .boot_on = 0,
 264         },
 265         .num_consumer_supplies = ARRAY_SIZE(cam_consumers),
 266         .consumer_supplies = cam_consumers,
 267 };
 268
 269 struct mc13783_regulator_init_data pcm038_regulators[] = {
 270         {
 271                 .id = MC13783_REGU_VCAM,
 272                 .init_data = &cam_data,
 273         }, {
 274                 .id = MC13783_REGU_VMMC1,
 275                 .init_data = &sdhc1_data,
 276         },
 277 };
 278
 279 static struct mc13783_platform_data pcm038_pmic = {
 280         .regulators = pcm038_regulators,
 281         .num_regulators = ARRAY_SIZE(pcm038_regulators),
 282         .flags = MC13783_USE_ADC | MC13783_USE_REGULATOR |
 283                  MC13783_USE_TOUCHSCREEN,
 284 };
 285
 286 static struct spi_board_info pcm038_spi_board_info[] __initdata = {
 287         {
 288                 .modalias = "mc13783",
 289                 .irq = IRQ_GPIOB(23),
 290                 .max_speed_hz = 300000,
 291                 .bus_num = 0,
 292                 .chip_select = 0,
 293                 .platform_data = &pcm038_pmic,
 294                 .mode = SPI_CS_HIGH,
 295         }
 296 };
 297
 298 static struct mxc_usbh_platform_data usbh2_pdata = {
 299         .portsc = MXC_EHCI_MODE_ULPI,
 300         .flags  = MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_INTERFACE_DIFF_UNI,
 301 };
 302
 303 static void __init pcm038_init(void)
 304 {
 305         mxc_gpio_setup_multiple_pins(pcm038_pins, ARRAY_SIZE(pcm038_pins),
 306                         "PCM038");
 307
 308         pcm038_init_sram();
 309
 310         mxc_register_device(&imx2x_uart_device0, &uart_pdata[0]);
 311         mxc_register_device(&imx2x_uart_device1, &uart_pdata[1]);
 312         mxc_register_device(&imx2x_uart_device2, &uart_pdata[2]);
 313
 314         mxc_gpio_mode(PE16_AF_OWIRE);
 315         imx27_add_mxc_nand(&pcm038_nand_board_info);
 316
 317         /* only the i2c master 1 is used on this CPU card */
 318         i2c_register_board_info(1, pcm038_i2c_devices,
 319                                 ARRAY_SIZE(pcm038_i2c_devices));
 320
 321         mxc_register_device(&mxc_i2c_device1, &pcm038_i2c_1_data);
 322
 323         /* PE18 for user-LED D40 */
 324         mxc_gpio_mode(GPIO_PORTE | 18 | GPIO_GPIO | GPIO_OUT);
 325
 326         mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
 327
 328         /* MC13783 IRQ */
 329         mxc_gpio_mode(GPIO_PORTB | 23 | GPIO_GPIO | GPIO_IN);
 330
 331         mxc_register_device(&mxc_spi_device0, &pcm038_spi_0_data);
 332         spi_register_board_info(pcm038_spi_board_info,
 333                                 ARRAY_SIZE(pcm038_spi_board_info));
 334
 335         mxc_register_device(&mxc_usbh2, &usbh2_pdata);
 336
 337         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 338
 339 #ifdef CONFIG_MACH_PCM970_BASEBOARD
 340         pcm970_baseboard_init();
 341 #endif
 342 }
 343
 344 static void __init pcm038_timer_init(void)
 345 {
 346         mx27_clocks_init(26000000);
 347 }
 348
 349 static struct sys_timer pcm038_timer = {
 350         .init = pcm038_timer_init,
 351 };
 352
 353 MACHINE_START(PCM038, "phyCORE-i.MX27")
 354         .phys_io        = MX27_AIPI_BASE_ADDR,
 355         .io_pg_offst    = ((MX27_AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 356         .boot_params    = MX27_PHYS_OFFSET + 0x100,
 357         .map_io         = mx27_map_io,
 358         .init_irq       = mx27_init_irq,
 359         .init_machine   = pcm038_init,
 360         .timer          = &pcm038_timer,
 361 MACHINE_END