linux/arch/arm/mach-imx/mach-pcm038.c
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   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/platform_data/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 "board-pcm038.h"
  37#include "common.h"
  38#include "devices-imx27.h"
  39#include "hardware.h"
  40#include "iomux-mx27.h"
  41#include "ulpi.h"
  42
  43static const int pcm038_pins[] __initconst = {
  44        /* UART1 */
  45        PE12_PF_UART1_TXD,
  46        PE13_PF_UART1_RXD,
  47        PE14_PF_UART1_CTS,
  48        PE15_PF_UART1_RTS,
  49        /* UART2 */
  50        PE3_PF_UART2_CTS,
  51        PE4_PF_UART2_RTS,
  52        PE6_PF_UART2_TXD,
  53        PE7_PF_UART2_RXD,
  54        /* UART3 */
  55        PE8_PF_UART3_TXD,
  56        PE9_PF_UART3_RXD,
  57        PE10_PF_UART3_CTS,
  58        PE11_PF_UART3_RTS,
  59        /* FEC */
  60        PD0_AIN_FEC_TXD0,
  61        PD1_AIN_FEC_TXD1,
  62        PD2_AIN_FEC_TXD2,
  63        PD3_AIN_FEC_TXD3,
  64        PD4_AOUT_FEC_RX_ER,
  65        PD5_AOUT_FEC_RXD1,
  66        PD6_AOUT_FEC_RXD2,
  67        PD7_AOUT_FEC_RXD3,
  68        PD8_AF_FEC_MDIO,
  69        PD9_AIN_FEC_MDC,
  70        PD10_AOUT_FEC_CRS,
  71        PD11_AOUT_FEC_TX_CLK,
  72        PD12_AOUT_FEC_RXD0,
  73        PD13_AOUT_FEC_RX_DV,
  74        PD14_AOUT_FEC_RX_CLK,
  75        PD15_AOUT_FEC_COL,
  76        PD16_AIN_FEC_TX_ER,
  77        PF23_AIN_FEC_TX_EN,
  78        /* I2C2 */
  79        PC5_PF_I2C2_SDA,
  80        PC6_PF_I2C2_SCL,
  81        /* SPI1 */
  82        PD25_PF_CSPI1_RDY,
  83        PD29_PF_CSPI1_SCLK,
  84        PD30_PF_CSPI1_MISO,
  85        PD31_PF_CSPI1_MOSI,
  86        /* SSI1 */
  87        PC20_PF_SSI1_FS,
  88        PC21_PF_SSI1_RXD,
  89        PC22_PF_SSI1_TXD,
  90        PC23_PF_SSI1_CLK,
  91        /* SSI4 */
  92        PC16_PF_SSI4_FS,
  93        PC17_PF_SSI4_RXD,
  94        PC18_PF_SSI4_TXD,
  95        PC19_PF_SSI4_CLK,
  96        /* USB host */
  97        PA0_PF_USBH2_CLK,
  98        PA1_PF_USBH2_DIR,
  99        PA2_PF_USBH2_DATA7,
 100        PA3_PF_USBH2_NXT,
 101        PA4_PF_USBH2_STP,
 102        PD19_AF_USBH2_DATA4,
 103        PD20_AF_USBH2_DATA3,
 104        PD21_AF_USBH2_DATA6,
 105        PD22_AF_USBH2_DATA0,
 106        PD23_AF_USBH2_DATA2,
 107        PD24_AF_USBH2_DATA1,
 108        PD26_AF_USBH2_DATA5,
 109};
 110
 111/*
 112 * Phytec's PCM038 comes with 2MiB battery buffered SRAM,
 113 * 16 bit width
 114 */
 115
 116static struct platdata_mtd_ram pcm038_sram_data = {
 117        .bankwidth = 2,
 118};
 119
 120static struct resource pcm038_sram_resource = {
 121        .start = MX27_CS1_BASE_ADDR,
 122        .end   = MX27_CS1_BASE_ADDR + 512 * 1024 - 1,
 123        .flags = IORESOURCE_MEM,
 124};
 125
 126static struct platform_device pcm038_sram_mtd_device = {
 127        .name = "mtd-ram",
 128        .id = 0,
 129        .dev = {
 130                .platform_data = &pcm038_sram_data,
 131        },
 132        .num_resources = 1,
 133        .resource = &pcm038_sram_resource,
 134};
 135
 136/*
 137 * Phytec's phyCORE-i.MX27 comes with 32MiB flash,
 138 * 16 bit width
 139 */
 140static struct physmap_flash_data pcm038_flash_data = {
 141        .width = 2,
 142};
 143
 144static struct resource pcm038_flash_resource = {
 145        .start = 0xc0000000,
 146        .end   = 0xc1ffffff,
 147        .flags = IORESOURCE_MEM,
 148};
 149
 150static struct platform_device pcm038_nor_mtd_device = {
 151        .name = "physmap-flash",
 152        .id = 0,
 153        .dev = {
 154                .platform_data = &pcm038_flash_data,
 155        },
 156        .num_resources = 1,
 157        .resource = &pcm038_flash_resource,
 158};
 159
 160static const struct imxuart_platform_data uart_pdata __initconst = {
 161        .flags = IMXUART_HAVE_RTSCTS,
 162};
 163
 164static const struct mxc_nand_platform_data
 165pcm038_nand_board_info __initconst = {
 166        .width = 1,
 167        .hw_ecc = 1,
 168};
 169
 170static struct platform_device *platform_devices[] __initdata = {
 171        &pcm038_nor_mtd_device,
 172        &pcm038_sram_mtd_device,
 173};
 174
 175/* On pcm038 there's a sram attached to CS1, we enable the chipselect here and
 176 * setup other stuffs to access the sram. */
 177static void __init pcm038_init_sram(void)
 178{
 179        __raw_writel(0x0000d843, MX27_IO_ADDRESS(MX27_WEIM_CSCRxU(1)));
 180        __raw_writel(0x22252521, MX27_IO_ADDRESS(MX27_WEIM_CSCRxL(1)));
 181        __raw_writel(0x22220a00, MX27_IO_ADDRESS(MX27_WEIM_CSCRxA(1)));
 182}
 183
 184static const struct imxi2c_platform_data pcm038_i2c1_data __initconst = {
 185        .bitrate = 100000,
 186};
 187
 188static struct at24_platform_data board_eeprom = {
 189        .byte_len = 4096,
 190        .page_size = 32,
 191        .flags = AT24_FLAG_ADDR16,
 192};
 193
 194static struct i2c_board_info pcm038_i2c_devices[] = {
 195        {
 196                I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
 197                .platform_data = &board_eeprom,
 198        }, {
 199                I2C_BOARD_INFO("pcf8563", 0x51),
 200        }, {
 201                I2C_BOARD_INFO("lm75", 0x4a),
 202        }
 203};
 204
 205static int pcm038_spi_cs[] = {GPIO_PORTD + 28};
 206
 207static const struct spi_imx_master pcm038_spi0_data __initconst = {
 208        .chipselect = pcm038_spi_cs,
 209        .num_chipselect = ARRAY_SIZE(pcm038_spi_cs),
 210};
 211
 212static struct regulator_consumer_supply sdhc1_consumers[] = {
 213        {
 214                .dev_name = "imx21-mmc.1",
 215                .supply = "sdhc_vcc",
 216        },
 217};
 218
 219static struct regulator_init_data sdhc1_data = {
 220        .constraints = {
 221                .min_uV = 3000000,
 222                .max_uV = 3400000,
 223                .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 224                        REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 225                .valid_modes_mask = REGULATOR_MODE_NORMAL |
 226                        REGULATOR_MODE_FAST,
 227                .always_on = 0,
 228                .boot_on = 0,
 229        },
 230        .num_consumer_supplies = ARRAY_SIZE(sdhc1_consumers),
 231        .consumer_supplies = sdhc1_consumers,
 232};
 233
 234static struct regulator_consumer_supply cam_consumers[] = {
 235        {
 236                .dev_name = NULL,
 237                .supply = "imx_cam_vcc",
 238        },
 239};
 240
 241static struct regulator_init_data cam_data = {
 242        .constraints = {
 243                .min_uV = 3000000,
 244                .max_uV = 3400000,
 245                .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 246                        REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 247                .valid_modes_mask = REGULATOR_MODE_NORMAL |
 248                        REGULATOR_MODE_FAST,
 249                .always_on = 0,
 250                .boot_on = 0,
 251        },
 252        .num_consumer_supplies = ARRAY_SIZE(cam_consumers),
 253        .consumer_supplies = cam_consumers,
 254};
 255
 256static struct mc13xxx_regulator_init_data pcm038_regulators[] = {
 257        {
 258                .id = MC13783_REG_VCAM,
 259                .init_data = &cam_data,
 260        }, {
 261                .id = MC13783_REG_VMMC1,
 262                .init_data = &sdhc1_data,
 263        },
 264};
 265
 266static struct mc13xxx_platform_data pcm038_pmic = {
 267        .regulators = {
 268                .regulators = pcm038_regulators,
 269                .num_regulators = ARRAY_SIZE(pcm038_regulators),
 270        },
 271        .flags = MC13XXX_USE_ADC | MC13XXX_USE_TOUCHSCREEN,
 272};
 273
 274static struct spi_board_info pcm038_spi_board_info[] __initdata = {
 275        {
 276                .modalias = "mc13783",
 277                /* irq number is run-time assigned */
 278                .max_speed_hz = 300000,
 279                .bus_num = 0,
 280                .chip_select = 0,
 281                .platform_data = &pcm038_pmic,
 282                .mode = SPI_CS_HIGH,
 283        }
 284};
 285
 286static int pcm038_usbh2_init(struct platform_device *pdev)
 287{
 288        return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
 289                        MXC_EHCI_INTERFACE_DIFF_UNI);
 290}
 291
 292static const struct mxc_usbh_platform_data usbh2_pdata __initconst = {
 293        .init   = pcm038_usbh2_init,
 294        .portsc = MXC_EHCI_MODE_ULPI,
 295};
 296
 297static void __init pcm038_init(void)
 298{
 299        imx27_soc_init();
 300
 301        mxc_gpio_setup_multiple_pins(pcm038_pins, ARRAY_SIZE(pcm038_pins),
 302                        "PCM038");
 303
 304        pcm038_init_sram();
 305
 306        imx27_add_imx_uart0(&uart_pdata);
 307        imx27_add_imx_uart1(&uart_pdata);
 308        imx27_add_imx_uart2(&uart_pdata);
 309
 310        mxc_gpio_mode(PE16_AF_OWIRE);
 311        imx27_add_mxc_nand(&pcm038_nand_board_info);
 312
 313        /* only the i2c master 1 is used on this CPU card */
 314        i2c_register_board_info(1, pcm038_i2c_devices,
 315                                ARRAY_SIZE(pcm038_i2c_devices));
 316
 317        imx27_add_imx_i2c(1, &pcm038_i2c1_data);
 318
 319        /* PE18 for user-LED D40 */
 320        mxc_gpio_mode(GPIO_PORTE | 18 | GPIO_GPIO | GPIO_OUT);
 321
 322        mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
 323
 324        /* MC13783 IRQ */
 325        mxc_gpio_mode(GPIO_PORTB | 23 | GPIO_GPIO | GPIO_IN);
 326
 327        imx27_add_spi_imx0(&pcm038_spi0_data);
 328        pcm038_spi_board_info[0].irq = gpio_to_irq(IMX_GPIO_NR(2, 23));
 329        spi_register_board_info(pcm038_spi_board_info,
 330                                ARRAY_SIZE(pcm038_spi_board_info));
 331
 332        imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
 333
 334        imx27_add_fec(NULL);
 335        platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 336        imx27_add_imx2_wdt();
 337        imx27_add_mxc_w1();
 338
 339#ifdef CONFIG_MACH_PCM970_BASEBOARD
 340        pcm970_baseboard_init();
 341#endif
 342}
 343
 344static void __init pcm038_timer_init(void)
 345{
 346        mx27_clocks_init(26000000);
 347}
 348
 349MACHINE_START(PCM038, "phyCORE-i.MX27")
 350        .atag_offset = 0x100,
 351        .map_io = mx27_map_io,
 352        .init_early = imx27_init_early,
 353        .init_irq = mx27_init_irq,
 354        .handle_irq = imx27_handle_irq,
 355        .init_time      = pcm038_timer_init,
 356        .init_machine = pcm038_init,
 357        .restart        = mxc_restart,
 358MACHINE_END
 359