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 #include <linux/gpio.h>
  31
  32 #include <asm/mach-types.h>
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/time.h>
  35
  36 #include <mach/board-pcm038.h>
  37 #include <mach/common.h>
  38 #include <mach/hardware.h>
  39 #include <mach/iomux-mx27.h>
  40 #include <mach/ulpi.h>
  41
  42 #include "devices-imx27.h"
  43
  44 static const int pcm038_pins[] __initconst = {
  45         /* UART1 */
  46         PE12_PF_UART1_TXD,
  47         PE13_PF_UART1_RXD,
  48         PE14_PF_UART1_CTS,
  49         PE15_PF_UART1_RTS,
  50         /* UART2 */
  51         PE3_PF_UART2_CTS,
  52         PE4_PF_UART2_RTS,
  53         PE6_PF_UART2_TXD,
  54         PE7_PF_UART2_RXD,
  55         /* UART3 */
  56         PE8_PF_UART3_TXD,
  57         PE9_PF_UART3_RXD,
  58         PE10_PF_UART3_CTS,
  59         PE11_PF_UART3_RTS,
  60         /* FEC */
  61         PD0_AIN_FEC_TXD0,
  62         PD1_AIN_FEC_TXD1,
  63         PD2_AIN_FEC_TXD2,
  64         PD3_AIN_FEC_TXD3,
  65         PD4_AOUT_FEC_RX_ER,
  66         PD5_AOUT_FEC_RXD1,
  67         PD6_AOUT_FEC_RXD2,
  68         PD7_AOUT_FEC_RXD3,
  69         PD8_AF_FEC_MDIO,
  70         PD9_AIN_FEC_MDC,
  71         PD10_AOUT_FEC_CRS,
  72         PD11_AOUT_FEC_TX_CLK,
  73         PD12_AOUT_FEC_RXD0,
  74         PD13_AOUT_FEC_RX_DV,
  75         PD14_AOUT_FEC_RX_CLK,
  76         PD15_AOUT_FEC_COL,
  77         PD16_AIN_FEC_TX_ER,
  78         PF23_AIN_FEC_TX_EN,
  79         /* I2C2 */
  80         PC5_PF_I2C2_SDA,
  81         PC6_PF_I2C2_SCL,
  82         /* SPI1 */
  83         PD25_PF_CSPI1_RDY,
  84         PD29_PF_CSPI1_SCLK,
  85         PD30_PF_CSPI1_MISO,
  86         PD31_PF_CSPI1_MOSI,
  87         /* SSI1 */
  88         PC20_PF_SSI1_FS,
  89         PC21_PF_SSI1_RXD,
  90         PC22_PF_SSI1_TXD,
  91         PC23_PF_SSI1_CLK,
  92         /* SSI4 */
  93         PC16_PF_SSI4_FS,
  94         PC17_PF_SSI4_RXD,
  95         PC18_PF_SSI4_TXD,
  96         PC19_PF_SSI4_CLK,
  97         /* USB host */
  98         PA0_PF_USBH2_CLK,
  99         PA1_PF_USBH2_DIR,
 100         PA2_PF_USBH2_DATA7,
 101         PA3_PF_USBH2_NXT,
 102         PA4_PF_USBH2_STP,
 103         PD19_AF_USBH2_DATA4,
 104         PD20_AF_USBH2_DATA3,
 105         PD21_AF_USBH2_DATA6,
 106         PD22_AF_USBH2_DATA0,
 107         PD23_AF_USBH2_DATA2,
 108         PD24_AF_USBH2_DATA1,
 109         PD26_AF_USBH2_DATA5,
 110 };
 111
 112 /*
 113  * Phytec's PCM038 comes with 2MiB battery buffered SRAM,
 114  * 16 bit width
 115  */
 116
 117 static struct platdata_mtd_ram pcm038_sram_data = {
 118         .bankwidth = 2,
 119 };
 120
 121 static struct resource pcm038_sram_resource = {
 122         .start = MX27_CS1_BASE_ADDR,
 123         .end   = MX27_CS1_BASE_ADDR + 512 * 1024 - 1,
 124         .flags = IORESOURCE_MEM,
 125 };
 126
 127 static struct platform_device pcm038_sram_mtd_device = {
 128         .name = "mtd-ram",
 129         .id = 0,
 130         .dev = {
 131                 .platform_data = &pcm038_sram_data,
 132         },
 133         .num_resources = 1,
 134         .resource = &pcm038_sram_resource,
 135 };
 136
 137 /*
 138  * Phytec's phyCORE-i.MX27 comes with 32MiB flash,
 139  * 16 bit width
 140  */
 141 static struct physmap_flash_data pcm038_flash_data = {
 142         .width = 2,
 143 };
 144
 145 static struct resource pcm038_flash_resource = {
 146         .start = 0xc0000000,
 147         .end   = 0xc1ffffff,
 148         .flags = IORESOURCE_MEM,
 149 };
 150
 151 static struct platform_device pcm038_nor_mtd_device = {
 152         .name = "physmap-flash",
 153         .id = 0,
 154         .dev = {
 155                 .platform_data = &pcm038_flash_data,
 156         },
 157         .num_resources = 1,
 158         .resource = &pcm038_flash_resource,
 159 };
 160
 161 static const struct imxuart_platform_data uart_pdata __initconst = {
 162         .flags = IMXUART_HAVE_RTSCTS,
 163 };
 164
 165 static const struct mxc_nand_platform_data
 166 pcm038_nand_board_info __initconst = {
 167         .width = 1,
 168         .hw_ecc = 1,
 169 };
 170
 171 static struct platform_device *platform_devices[] __initdata = {
 172         &pcm038_nor_mtd_device,
 173         &pcm038_sram_mtd_device,
 174 };
 175
 176 /* On pcm038 there's a sram attached to CS1, we enable the chipselect here and
 177  * setup other stuffs to access the sram. */
 178 static void __init pcm038_init_sram(void)
 179 {
 180         __raw_writel(0x0000d843, MX27_IO_ADDRESS(MX27_WEIM_CSCRxU(1)));
 181         __raw_writel(0x22252521, MX27_IO_ADDRESS(MX27_WEIM_CSCRxL(1)));
 182         __raw_writel(0x22220a00, MX27_IO_ADDRESS(MX27_WEIM_CSCRxA(1)));
 183 }
 184
 185 static const struct imxi2c_platform_data pcm038_i2c1_data __initconst = {
 186         .bitrate = 100000,
 187 };
 188
 189 static struct at24_platform_data board_eeprom = {
 190         .byte_len = 4096,
 191         .page_size = 32,
 192         .flags = AT24_FLAG_ADDR16,
 193 };
 194
 195 static struct i2c_board_info pcm038_i2c_devices[] = {
 196         {
 197                 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
 198                 .platform_data = &board_eeprom,
 199         }, {
 200                 I2C_BOARD_INFO("pcf8563", 0x51),
 201         }, {
 202                 I2C_BOARD_INFO("lm75", 0x4a),
 203         }
 204 };
 205
 206 static int pcm038_spi_cs[] = {GPIO_PORTD + 28};
 207
 208 static const struct spi_imx_master pcm038_spi0_data __initconst = {
 209         .chipselect = pcm038_spi_cs,
 210         .num_chipselect = ARRAY_SIZE(pcm038_spi_cs),
 211 };
 212
 213 static struct regulator_consumer_supply sdhc1_consumers[] = {
 214         {
 215                 .dev_name = "mxc-mmc.1",
 216                 .supply = "sdhc_vcc",
 217         },
 218 };
 219
 220 static struct regulator_init_data sdhc1_data = {
 221         .constraints = {
 222                 .min_uV = 3000000,
 223                 .max_uV = 3400000,
 224                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 225                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 226                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
 227                         REGULATOR_MODE_FAST,
 228                 .always_on = 0,
 229                 .boot_on = 0,
 230         },
 231         .num_consumer_supplies = ARRAY_SIZE(sdhc1_consumers),
 232         .consumer_supplies = sdhc1_consumers,
 233 };
 234
 235 static struct regulator_consumer_supply cam_consumers[] = {
 236         {
 237                 .dev_name = NULL,
 238                 .supply = "imx_cam_vcc",
 239         },
 240 };
 241
 242 static struct regulator_init_data cam_data = {
 243         .constraints = {
 244                 .min_uV = 3000000,
 245                 .max_uV = 3400000,
 246                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 247                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 248                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
 249                         REGULATOR_MODE_FAST,
 250                 .always_on = 0,
 251                 .boot_on = 0,
 252         },
 253         .num_consumer_supplies = ARRAY_SIZE(cam_consumers),
 254         .consumer_supplies = cam_consumers,
 255 };
 256
 257 static struct mc13xxx_regulator_init_data pcm038_regulators[] = {
 258         {
 259                 .id = MC13783_REG_VCAM,
 260                 .init_data = &cam_data,
 261         }, {
 262                 .id = MC13783_REG_VMMC1,
 263                 .init_data = &sdhc1_data,
 264         },
 265 };
 266
 267 static struct mc13xxx_platform_data pcm038_pmic = {
 268         .regulators = {
 269                 .regulators = pcm038_regulators,
 270                 .num_regulators = ARRAY_SIZE(pcm038_regulators),
 271         },
 272         .flags = MC13XXX_USE_ADC | MC13XXX_USE_TOUCHSCREEN,
 273 };
 274
 275 static struct spi_board_info pcm038_spi_board_info[] __initdata = {
 276         {
 277                 .modalias = "mc13783",
 278                 /* irq number is run-time assigned */
 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 int pcm038_usbh2_init(struct platform_device *pdev)
 288 {
 289         return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
 290                         MXC_EHCI_INTERFACE_DIFF_UNI);
 291 }
 292
 293 static const struct mxc_usbh_platform_data usbh2_pdata __initconst = {
 294         .init   = pcm038_usbh2_init,
 295         .portsc = MXC_EHCI_MODE_ULPI,
 296 };
 297
 298 static void __init pcm038_init(void)
 299 {
 300         imx27_soc_init();
 301
 302         mxc_gpio_setup_multiple_pins(pcm038_pins, ARRAY_SIZE(pcm038_pins),
 303                         "PCM038");
 304
 305         pcm038_init_sram();
 306
 307         imx27_add_imx_uart0(&uart_pdata);
 308         imx27_add_imx_uart1(&uart_pdata);
 309         imx27_add_imx_uart2(&uart_pdata);
 310
 311         mxc_gpio_mode(PE16_AF_OWIRE);
 312         imx27_add_mxc_nand(&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         imx27_add_imx_i2c(1, &pcm038_i2c1_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         imx27_add_spi_imx0(&pcm038_spi0_data);
 329         pcm038_spi_board_info[0].irq = gpio_to_irq(IMX_GPIO_NR(2, 23));
 330         spi_register_board_info(pcm038_spi_board_info,
 331                                 ARRAY_SIZE(pcm038_spi_board_info));
 332
 333         imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
 334
 335         imx27_add_fec(NULL);
 336         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 337         imx27_add_imx2_wdt();
 338         imx27_add_mxc_w1();
 339
 340 #ifdef CONFIG_MACH_PCM970_BASEBOARD
 341         pcm970_baseboard_init();
 342 #endif
 343 }
 344
 345 static void __init pcm038_timer_init(void)
 346 {
 347         mx27_clocks_init(26000000);
 348 }
 349
 350 static struct sys_timer pcm038_timer = {
 351         .init = pcm038_timer_init,
 352 };
 353
 354 MACHINE_START(PCM038, "phyCORE-i.MX27")
 355         .atag_offset = 0x100,
 356         .map_io = mx27_map_io,
 357         .init_early = imx27_init_early,
 358         .init_irq = mx27_init_irq,
 359         .handle_irq = imx27_handle_irq,
 360         .timer = &pcm038_timer,
 361         .init_machine = pcm038_init,
 362         .restart        = mxc_restart,
 363 MACHINE_END