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/imx-uart.h>
  40 #include <mach/mxc_nand.h>
  41 #include <mach/mxc_ehci.h>
  42 #include <mach/ulpi.h>
  43
  44 #include "devices-imx27.h"
  45 #include "devices.h"
  46
  47 static int pcm038_pins[] = {
  48         /* UART1 */
  49         PE12_PF_UART1_TXD,
  50         PE13_PF_UART1_RXD,
  51         PE14_PF_UART1_CTS,
  52         PE15_PF_UART1_RTS,
  53         /* UART2 */
  54         PE3_PF_UART2_CTS,
  55         PE4_PF_UART2_RTS,
  56         PE6_PF_UART2_TXD,
  57         PE7_PF_UART2_RXD,
  58         /* UART3 */
  59         PE8_PF_UART3_TXD,
  60         PE9_PF_UART3_RXD,
  61         PE10_PF_UART3_CTS,
  62         PE11_PF_UART3_RTS,
  63         /* FEC */
  64         PD0_AIN_FEC_TXD0,
  65         PD1_AIN_FEC_TXD1,
  66         PD2_AIN_FEC_TXD2,
  67         PD3_AIN_FEC_TXD3,
  68         PD4_AOUT_FEC_RX_ER,
  69         PD5_AOUT_FEC_RXD1,
  70         PD6_AOUT_FEC_RXD2,
  71         PD7_AOUT_FEC_RXD3,
  72         PD8_AF_FEC_MDIO,
  73         PD9_AIN_FEC_MDC,
  74         PD10_AOUT_FEC_CRS,
  75         PD11_AOUT_FEC_TX_CLK,
  76         PD12_AOUT_FEC_RXD0,
  77         PD13_AOUT_FEC_RX_DV,
  78         PD14_AOUT_FEC_RX_CLK,
  79         PD15_AOUT_FEC_COL,
  80         PD16_AIN_FEC_TX_ER,
  81         PF23_AIN_FEC_TX_EN,
  82         /* I2C2 */
  83         PC5_PF_I2C2_SDA,
  84         PC6_PF_I2C2_SCL,
  85         /* SPI1 */
  86         PD25_PF_CSPI1_RDY,
  87         PD29_PF_CSPI1_SCLK,
  88         PD30_PF_CSPI1_MISO,
  89         PD31_PF_CSPI1_MOSI,
  90         /* SSI1 */
  91         PC20_PF_SSI1_FS,
  92         PC21_PF_SSI1_RXD,
  93         PC22_PF_SSI1_TXD,
  94         PC23_PF_SSI1_CLK,
  95         /* SSI4 */
  96         PC16_PF_SSI4_FS,
  97         PC17_PF_SSI4_RXD,
  98         PC18_PF_SSI4_TXD,
  99         PC19_PF_SSI4_CLK,
 100         /* USB host */
 101         PA0_PF_USBH2_CLK,
 102         PA1_PF_USBH2_DIR,
 103         PA2_PF_USBH2_DATA7,
 104         PA3_PF_USBH2_NXT,
 105         PA4_PF_USBH2_STP,
 106         PD19_AF_USBH2_DATA4,
 107         PD20_AF_USBH2_DATA3,
 108         PD21_AF_USBH2_DATA6,
 109         PD22_AF_USBH2_DATA0,
 110         PD23_AF_USBH2_DATA2,
 111         PD24_AF_USBH2_DATA1,
 112         PD26_AF_USBH2_DATA5,
 113 };
 114
 115 /*
 116  * Phytec's PCM038 comes with 2MiB battery buffered SRAM,
 117  * 16 bit width
 118  */
 119
 120 static struct platdata_mtd_ram pcm038_sram_data = {
 121         .bankwidth = 2,
 122 };
 123
 124 static struct resource pcm038_sram_resource = {
 125         .start = MX27_CS1_BASE_ADDR,
 126         .end   = MX27_CS1_BASE_ADDR + 512 * 1024 - 1,
 127         .flags = IORESOURCE_MEM,
 128 };
 129
 130 static struct platform_device pcm038_sram_mtd_device = {
 131         .name = "mtd-ram",
 132         .id = 0,
 133         .dev = {
 134                 .platform_data = &pcm038_sram_data,
 135         },
 136         .num_resources = 1,
 137         .resource = &pcm038_sram_resource,
 138 };
 139
 140 /*
 141  * Phytec's phyCORE-i.MX27 comes with 32MiB flash,
 142  * 16 bit width
 143  */
 144 static struct physmap_flash_data pcm038_flash_data = {
 145         .width = 2,
 146 };
 147
 148 static struct resource pcm038_flash_resource = {
 149         .start = 0xc0000000,
 150         .end   = 0xc1ffffff,
 151         .flags = IORESOURCE_MEM,
 152 };
 153
 154 static struct platform_device pcm038_nor_mtd_device = {
 155         .name = "physmap-flash",
 156         .id = 0,
 157         .dev = {
 158                 .platform_data = &pcm038_flash_data,
 159         },
 160         .num_resources = 1,
 161         .resource = &pcm038_flash_resource,
 162 };
 163
 164 static struct imxuart_platform_data uart_pdata[] = {
 165         {
 166                 .flags = IMXUART_HAVE_RTSCTS,
 167         }, {
 168                 .flags = IMXUART_HAVE_RTSCTS,
 169         }, {
 170                 .flags = IMXUART_HAVE_RTSCTS,
 171         },
 172 };
 173
 174 static const struct mxc_nand_platform_data
 175 pcm038_nand_board_info __initconst = {
 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         &mxc_wdt,
 186 };
 187
 188 /* On pcm038 there's a sram attached to CS1, we enable the chipselect here and
 189  * setup other stuffs to access the sram. */
 190 static void __init pcm038_init_sram(void)
 191 {
 192         mx27_setup_weimcs(1, 0x0000d843, 0x22252521, 0x22220a00);
 193 }
 194
 195 static const struct imxi2c_platform_data pcm038_i2c1_data __initconst = {
 196         .bitrate = 100000,
 197 };
 198
 199 static struct at24_platform_data board_eeprom = {
 200         .byte_len = 4096,
 201         .page_size = 32,
 202         .flags = AT24_FLAG_ADDR16,
 203 };
 204
 205 static struct i2c_board_info pcm038_i2c_devices[] = {
 206         {
 207                 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
 208                 .platform_data = &board_eeprom,
 209         }, {
 210                 I2C_BOARD_INFO("pcf8563", 0x51),
 211         }, {
 212                 I2C_BOARD_INFO("lm75", 0x4a),
 213         }
 214 };
 215
 216 static int pcm038_spi_cs[] = {GPIO_PORTD + 28};
 217
 218 static const struct spi_imx_master pcm038_spi0_data __initconst = {
 219         .chipselect = pcm038_spi_cs,
 220         .num_chipselect = ARRAY_SIZE(pcm038_spi_cs),
 221 };
 222
 223 static struct regulator_consumer_supply sdhc1_consumers[] = {
 224         {
 225                 .dev    = &mxc_sdhc_device1.dev,
 226                 .supply = "sdhc_vcc",
 227         },
 228 };
 229
 230 static struct regulator_init_data sdhc1_data = {
 231         .constraints = {
 232                 .min_uV = 3000000,
 233                 .max_uV = 3400000,
 234                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 235                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 236                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
 237                         REGULATOR_MODE_FAST,
 238                 .always_on = 0,
 239                 .boot_on = 0,
 240         },
 241         .num_consumer_supplies = ARRAY_SIZE(sdhc1_consumers),
 242         .consumer_supplies = sdhc1_consumers,
 243 };
 244
 245 static struct regulator_consumer_supply cam_consumers[] = {
 246         {
 247                 .dev    = NULL,
 248                 .supply = "imx_cam_vcc",
 249         },
 250 };
 251
 252 static struct regulator_init_data cam_data = {
 253         .constraints = {
 254                 .min_uV = 3000000,
 255                 .max_uV = 3400000,
 256                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 257                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 258                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
 259                         REGULATOR_MODE_FAST,
 260                 .always_on = 0,
 261                 .boot_on = 0,
 262         },
 263         .num_consumer_supplies = ARRAY_SIZE(cam_consumers),
 264         .consumer_supplies = cam_consumers,
 265 };
 266
 267 struct mc13783_regulator_init_data pcm038_regulators[] = {
 268         {
 269                 .id = MC13783_REGU_VCAM,
 270                 .init_data = &cam_data,
 271         }, {
 272                 .id = MC13783_REGU_VMMC1,
 273                 .init_data = &sdhc1_data,
 274         },
 275 };
 276
 277 static struct mc13783_platform_data pcm038_pmic = {
 278         .regulators = pcm038_regulators,
 279         .num_regulators = ARRAY_SIZE(pcm038_regulators),
 280         .flags = MC13783_USE_ADC | MC13783_USE_REGULATOR |
 281                  MC13783_USE_TOUCHSCREEN,
 282 };
 283
 284 static struct spi_board_info pcm038_spi_board_info[] __initdata = {
 285         {
 286                 .modalias = "mc13783",
 287                 .irq = IRQ_GPIOB(23),
 288                 .max_speed_hz = 300000,
 289                 .bus_num = 0,
 290                 .chip_select = 0,
 291                 .platform_data = &pcm038_pmic,
 292                 .mode = SPI_CS_HIGH,
 293         }
 294 };
 295
 296 static struct mxc_usbh_platform_data usbh2_pdata = {
 297         .portsc = MXC_EHCI_MODE_ULPI,
 298         .flags  = MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_INTERFACE_DIFF_UNI,
 299 };
 300
 301 static void __init pcm038_init(void)
 302 {
 303         mxc_gpio_setup_multiple_pins(pcm038_pins, ARRAY_SIZE(pcm038_pins),
 304                         "PCM038");
 305
 306         pcm038_init_sram();
 307
 308         mxc_register_device(&imx2x_uart_device0, &uart_pdata[0]);
 309         mxc_register_device(&imx2x_uart_device1, &uart_pdata[1]);
 310         mxc_register_device(&imx2x_uart_device2, &uart_pdata[2]);
 311
 312         mxc_gpio_mode(PE16_AF_OWIRE);
 313         imx27_add_mxc_nand(&pcm038_nand_board_info);
 314
 315         /* only the i2c master 1 is used on this CPU card */
 316         i2c_register_board_info(1, pcm038_i2c_devices,
 317                                 ARRAY_SIZE(pcm038_i2c_devices));
 318
 319         imx27_add_i2c_imx1(&pcm038_i2c1_data);
 320
 321         /* PE18 for user-LED D40 */
 322         mxc_gpio_mode(GPIO_PORTE | 18 | GPIO_GPIO | GPIO_OUT);
 323
 324         mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
 325
 326         /* MC13783 IRQ */
 327         mxc_gpio_mode(GPIO_PORTB | 23 | GPIO_GPIO | GPIO_IN);
 328
 329         imx27_add_spi_imx0(&pcm038_spi0_data);
 330         spi_register_board_info(pcm038_spi_board_info,
 331                                 ARRAY_SIZE(pcm038_spi_board_info));
 332
 333         mxc_register_device(&mxc_usbh2, &usbh2_pdata);
 334
 335         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 336
 337 #ifdef CONFIG_MACH_PCM970_BASEBOARD
 338         pcm970_baseboard_init();
 339 #endif
 340 }
 341
 342 static void __init pcm038_timer_init(void)
 343 {
 344         mx27_clocks_init(26000000);
 345 }
 346
 347 static struct sys_timer pcm038_timer = {
 348         .init = pcm038_timer_init,
 349 };
 350
 351 MACHINE_START(PCM038, "phyCORE-i.MX27")
 352         .phys_io        = MX27_AIPI_BASE_ADDR,
 353         .io_pg_offst    = ((MX27_AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 354         .boot_params    = MX27_PHYS_OFFSET + 0x100,
 355         .map_io         = mx27_map_io,
 356         .init_irq       = mx27_init_irq,
 357         .init_machine   = pcm038_init,
 358         .timer          = &pcm038_timer,
 359 MACHINE_END