1/* 2 * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix 3 * Copyright (C) 2009 Sascha Hauer (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/platform_device.h> 21#include <linux/io.h> 22#include <linux/i2c.h> 23#include <linux/i2c/at24.h> 24#include <linux/dma-mapping.h> 25#include <linux/spi/spi.h> 26#include <linux/spi/eeprom.h> 27#include <linux/irq.h> 28#include <linux/delay.h> 29#include <linux/gpio.h> 30#include <linux/usb/otg.h> 31#include <linux/usb/ulpi.h> 32#include <linux/fsl_devices.h> 33 34#include <asm/mach/arch.h> 35#include <asm/mach-types.h> 36#include <mach/common.h> 37#include <mach/hardware.h> 38#include <mach/iomux-mx27.h> 39#include <asm/mach/time.h> 40#include <mach/audmux.h> 41#include <mach/ssi.h> 42#include <mach/mxc_nand.h> 43#include <mach/irqs.h> 44#include <mach/mmc.h> 45#include <mach/mxc_ehci.h> 46#include <mach/ulpi.h> 47#include <mach/imxfb.h> 48 49#include "devices-imx27.h" 50#include "devices.h" 51 52#define OTG_PHY_CS_GPIO (GPIO_PORTB + 23) 53#define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24) 54#define SPI1_SS0 (GPIO_PORTD + 28) 55#define SPI1_SS1 (GPIO_PORTD + 27) 56#define SD2_CD (GPIO_PORTC + 29) 57 58static int pca100_pins[] = { 59 /* UART1 */ 60 PE12_PF_UART1_TXD, 61 PE13_PF_UART1_RXD, 62 PE14_PF_UART1_CTS, 63 PE15_PF_UART1_RTS, 64 /* SDHC */ 65 PB4_PF_SD2_D0, 66 PB5_PF_SD2_D1, 67 PB6_PF_SD2_D2, 68 PB7_PF_SD2_D3, 69 PB8_PF_SD2_CMD, 70 PB9_PF_SD2_CLK, 71 SD2_CD | GPIO_GPIO | GPIO_IN, 72 /* FEC */ 73 PD0_AIN_FEC_TXD0, 74 PD1_AIN_FEC_TXD1, 75 PD2_AIN_FEC_TXD2, 76 PD3_AIN_FEC_TXD3, 77 PD4_AOUT_FEC_RX_ER, 78 PD5_AOUT_FEC_RXD1, 79 PD6_AOUT_FEC_RXD2, 80 PD7_AOUT_FEC_RXD3, 81 PD8_AF_FEC_MDIO, 82 PD9_AIN_FEC_MDC, 83 PD10_AOUT_FEC_CRS, 84 PD11_AOUT_FEC_TX_CLK, 85 PD12_AOUT_FEC_RXD0, 86 PD13_AOUT_FEC_RX_DV, 87 PD14_AOUT_FEC_RX_CLK, 88 PD15_AOUT_FEC_COL, 89 PD16_AIN_FEC_TX_ER, 90 PF23_AIN_FEC_TX_EN, 91 /* SSI1 */ 92 PC20_PF_SSI1_FS, 93 PC21_PF_SSI1_RXD, 94 PC22_PF_SSI1_TXD, 95 PC23_PF_SSI1_CLK, 96 /* onboard I2C */ 97 PC5_PF_I2C2_SDA, 98 PC6_PF_I2C2_SCL, 99 /* external I2C */ 100 PD17_PF_I2C_DATA, 101 PD18_PF_I2C_CLK, 102 /* SPI1 */ 103 PD25_PF_CSPI1_RDY, 104 PD29_PF_CSPI1_SCLK, 105 PD30_PF_CSPI1_MISO, 106 PD31_PF_CSPI1_MOSI, 107 /* OTG */ 108 OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT, 109 PC7_PF_USBOTG_DATA5, 110 PC8_PF_USBOTG_DATA6, 111 PC9_PF_USBOTG_DATA0, 112 PC10_PF_USBOTG_DATA2, 113 PC11_PF_USBOTG_DATA1, 114 PC12_PF_USBOTG_DATA4, 115 PC13_PF_USBOTG_DATA3, 116 PE0_PF_USBOTG_NXT, 117 PE1_PF_USBOTG_STP, 118 PE2_PF_USBOTG_DIR, 119 PE24_PF_USBOTG_CLK, 120 PE25_PF_USBOTG_DATA7, 121 /* USBH2 */ 122 USBH2_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT, 123 PA0_PF_USBH2_CLK, 124 PA1_PF_USBH2_DIR, 125 PA2_PF_USBH2_DATA7, 126 PA3_PF_USBH2_NXT, 127 PA4_PF_USBH2_STP, 128 PD19_AF_USBH2_DATA4, 129 PD20_AF_USBH2_DATA3, 130 PD21_AF_USBH2_DATA6, 131 PD22_AF_USBH2_DATA0, 132 PD23_AF_USBH2_DATA2, 133 PD24_AF_USBH2_DATA1, 134 PD26_AF_USBH2_DATA5, 135 /* display */ 136 PA5_PF_LSCLK, 137 PA6_PF_LD0, 138 PA7_PF_LD1, 139 PA8_PF_LD2, 140 PA9_PF_LD3, 141 PA10_PF_LD4, 142 PA11_PF_LD5, 143 PA12_PF_LD6, 144 PA13_PF_LD7, 145 PA14_PF_LD8, 146 PA15_PF_LD9, 147 PA16_PF_LD10, 148 PA17_PF_LD11, 149 PA18_PF_LD12, 150 PA19_PF_LD13, 151 PA20_PF_LD14, 152 PA21_PF_LD15, 153 PA22_PF_LD16, 154 PA23_PF_LD17, 155 PA26_PF_PS, 156 PA28_PF_HSYNC, 157 PA29_PF_VSYNC, 158 PA31_PF_OE_ACD, 159 /* free GPIO */ 160 GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN, /* GPIO0_IRQ */ 161 GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN, /* GPIO1_IRQ */ 162 GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN, /* GPIO2_IRQ */ 163}; 164 165static const struct imxuart_platform_data uart_pdata __initconst = { 166 .flags = IMXUART_HAVE_RTSCTS, 167}; 168 169static const struct mxc_nand_platform_data 170pca100_nand_board_info __initconst = { 171 .width = 1, 172 .hw_ecc = 1, 173}; 174 175static struct platform_device *platform_devices[] __initdata = { 176 &mxc_w1_master_device, 177 &mxc_fec_device, 178 &mxc_wdt, 179}; 180 181static const struct imxi2c_platform_data pca100_i2c1_data __initconst = { 182 .bitrate = 100000, 183}; 184 185static struct at24_platform_data board_eeprom = { 186 .byte_len = 4096, 187 .page_size = 32, 188 .flags = AT24_FLAG_ADDR16, 189}; 190 191static struct i2c_board_info pca100_i2c_devices[] = { 192 { 193 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */ 194 .platform_data = &board_eeprom, 195 }, { 196 I2C_BOARD_INFO("rtc-pcf8563", 0x51), 197 .type = "pcf8563" 198 }, { 199 I2C_BOARD_INFO("lm75", 0x4a), 200 .type = "lm75" 201 } 202}; 203 204#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE) 205static struct spi_eeprom at25320 = { 206 .name = "at25320an", 207 .byte_len = 4096, 208 .page_size = 32, 209 .flags = EE_ADDR2, 210}; 211 212static struct spi_board_info pca100_spi_board_info[] __initdata = { 213 { 214 .modalias = "at25", 215 .max_speed_hz = 30000, 216 .bus_num = 0, 217 .chip_select = 1, 218 .platform_data = &at25320, 219 }, 220}; 221 222static int pca100_spi_cs[] = {SPI1_SS0, SPI1_SS1}; 223 224static const struct spi_imx_master pca100_spi0_data __initconst = { 225 .chipselect = pca100_spi_cs, 226 .num_chipselect = ARRAY_SIZE(pca100_spi_cs), 227}; 228#endif 229 230static void pca100_ac97_warm_reset(struct snd_ac97 *ac97) 231{ 232 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); 233 gpio_set_value(GPIO_PORTC + 20, 1); 234 udelay(2); 235 gpio_set_value(GPIO_PORTC + 20, 0); 236 mxc_gpio_mode(PC20_PF_SSI1_FS); 237 msleep(2); 238} 239 240static void pca100_ac97_cold_reset(struct snd_ac97 *ac97) 241{ 242 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); /* FS */ 243 gpio_set_value(GPIO_PORTC + 20, 0); 244 mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT); /* TX */ 245 gpio_set_value(GPIO_PORTC + 22, 0); 246 mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT); /* reset */ 247 gpio_set_value(GPIO_PORTC + 28, 0); 248 udelay(10); 249 gpio_set_value(GPIO_PORTC + 28, 1); 250 mxc_gpio_mode(PC20_PF_SSI1_FS); 251 mxc_gpio_mode(PC22_PF_SSI1_TXD); 252 msleep(2); 253} 254 255static struct imx_ssi_platform_data pca100_ssi_pdata = { 256 .ac97_reset = pca100_ac97_cold_reset, 257 .ac97_warm_reset = pca100_ac97_warm_reset, 258 .flags = IMX_SSI_USE_AC97, 259}; 260 261static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq, 262 void *data) 263{ 264 int ret; 265 266 ret = request_irq(IRQ_GPIOC(29), detect_irq, 267 IRQF_DISABLED | IRQF_TRIGGER_FALLING, 268 "imx-mmc-detect", data); 269 if (ret) 270 printk(KERN_ERR 271 "pca100: Failed to reuest irq for sd/mmc detection\n"); 272 273 return ret; 274} 275 276static void pca100_sdhc2_exit(struct device *dev, void *data) 277{ 278 free_irq(IRQ_GPIOC(29), data); 279} 280 281static struct imxmmc_platform_data sdhc_pdata = { 282 .init = pca100_sdhc2_init, 283 .exit = pca100_sdhc2_exit, 284}; 285 286#if defined(CONFIG_USB_ULPI) 287static int otg_phy_init(struct platform_device *pdev) 288{ 289 gpio_set_value(OTG_PHY_CS_GPIO, 0); 290 return 0; 291} 292 293static struct mxc_usbh_platform_data otg_pdata = { 294 .init = otg_phy_init, 295 .portsc = MXC_EHCI_MODE_ULPI, 296 .flags = MXC_EHCI_INTERFACE_DIFF_UNI, 297}; 298 299static int usbh2_phy_init(struct platform_device *pdev) 300{ 301 gpio_set_value(USBH2_PHY_CS_GPIO, 0); 302 return 0; 303} 304 305static struct mxc_usbh_platform_data usbh2_pdata = { 306 .init = usbh2_phy_init, 307 .portsc = MXC_EHCI_MODE_ULPI, 308 .flags = MXC_EHCI_INTERFACE_DIFF_UNI, 309}; 310#endif 311 312static struct fsl_usb2_platform_data otg_device_pdata = { 313 .operating_mode = FSL_USB2_DR_DEVICE, 314 .phy_mode = FSL_USB2_PHY_ULPI, 315}; 316 317static int otg_mode_host; 318 319static int __init pca100_otg_mode(char *options) 320{ 321 if (!strcmp(options, "host")) 322 otg_mode_host = 1; 323 else if (!strcmp(options, "device")) 324 otg_mode_host = 0; 325 else 326 pr_info("otg_mode neither \"host\" nor \"device\". " 327 "Defaulting to device\n"); 328 return 0; 329} 330__setup("otg_mode=", pca100_otg_mode); 331 332/* framebuffer info */ 333static struct imx_fb_videomode pca100_fb_modes[] = { 334 { 335 .mode = { 336 .name = "EMERGING-ETV570G0DHU", 337 .refresh = 60, 338 .xres = 640, 339 .yres = 480, 340 .pixclock = 39722, /* in ps (25.175 MHz) */ 341 .hsync_len = 30, 342 .left_margin = 114, 343 .right_margin = 16, 344 .vsync_len = 3, 345 .upper_margin = 32, 346 .lower_margin = 0, 347 }, 348 /* 349 * TFT 350 * Pixel pol active high 351 * HSYNC active low 352 * VSYNC active low 353 * use HSYNC for ACD count 354 * line clock disable while idle 355 * always enable line clock even if no data 356 */ 357 .pcr = 0xf0c08080, 358 .bpp = 16, 359 }, 360}; 361 362static struct imx_fb_platform_data pca100_fb_data = { 363 .mode = pca100_fb_modes, 364 .num_modes = ARRAY_SIZE(pca100_fb_modes), 365 366 .pwmr = 0x00A903FF, 367 .lscr1 = 0x00120300, 368 .dmacr = 0x00020010, 369}; 370 371static void __init pca100_init(void) 372{ 373 int ret; 374 375 /* SSI unit */ 376 mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0, 377 MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */ 378 MXC_AUDMUX_V1_PCR_TFCSEL(3) | 379 MXC_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */ 380 MXC_AUDMUX_V1_PCR_RXDSEL(3)); 381 mxc_audmux_v1_configure_port(3, 382 MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */ 383 MXC_AUDMUX_V1_PCR_TFCSEL(0) | 384 MXC_AUDMUX_V1_PCR_TFSDIR | 385 MXC_AUDMUX_V1_PCR_RXDSEL(0)); 386 387 ret = mxc_gpio_setup_multiple_pins(pca100_pins, 388 ARRAY_SIZE(pca100_pins), "PCA100"); 389 if (ret) 390 printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret); 391 392 mxc_register_device(&imx_ssi_device0, &pca100_ssi_pdata); 393 394 imx27_add_imx_uart0(&uart_pdata); 395 396 mxc_register_device(&mxc_sdhc_device1, &sdhc_pdata); 397 398 imx27_add_mxc_nand(&pca100_nand_board_info); 399 400 /* only the i2c master 1 is used on this CPU card */ 401 i2c_register_board_info(1, pca100_i2c_devices, 402 ARRAY_SIZE(pca100_i2c_devices)); 403 404 imx27_add_i2c_imx1(&pca100_i2c1_data); 405 406#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE) 407 mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_IN); 408 mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_IN); 409 spi_register_board_info(pca100_spi_board_info, 410 ARRAY_SIZE(pca100_spi_board_info)); 411 imx27_add_spi_imx0(&pca100_spi0_data); 412#endif 413 414 gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs"); 415 gpio_direction_output(OTG_PHY_CS_GPIO, 1); 416 gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs"); 417 gpio_direction_output(USBH2_PHY_CS_GPIO, 1); 418 419#if defined(CONFIG_USB_ULPI) 420 if (otg_mode_host) { 421 otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops, 422 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT); 423 424 mxc_register_device(&mxc_otg_host, &otg_pdata); 425 } 426 427 usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops, 428 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT); 429 430 mxc_register_device(&mxc_usbh2, &usbh2_pdata); 431#endif 432 if (!otg_mode_host) { 433 gpio_set_value(OTG_PHY_CS_GPIO, 0); 434 mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata); 435 } 436 437 mxc_register_device(&mxc_fb_device, &pca100_fb_data); 438 439 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); 440} 441 442static void __init pca100_timer_init(void) 443{ 444 mx27_clocks_init(26000000); 445} 446 447static struct sys_timer pca100_timer = { 448 .init = pca100_timer_init, 449}; 450 451MACHINE_START(PCA100, "phyCARD-i.MX27") 452 .phys_io = MX27_AIPI_BASE_ADDR, 453 .io_pg_offst = ((MX27_AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc, 454 .boot_params = MX27_PHYS_OFFSET + 0x100, 455 .map_io = mx27_map_io, 456 .init_irq = mx27_init_irq, 457 .init_machine = pca100_init, 458 .timer = &pca100_timer, 459MACHINE_END 460