arch/arm/mach-imx/mach-pca100.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
   4  * Copyright (C) 2009 Sascha Hauer (kernel@pengutronix.de)
   5  */
   6
   7 #include <linux/platform_device.h>
   8 #include <linux/io.h>
   9 #include <linux/i2c.h>
  10 #include <linux/property.h>
  11 #include <linux/dma-mapping.h>
  12 #include <linux/spi/spi.h>
  13 #include <linux/spi/eeprom.h>
  14 #include <linux/irq.h>
  15 #include <linux/delay.h>
  16 #include <linux/gpio.h>
  17 #include <linux/usb/otg.h>
  18 #include <linux/usb/ulpi.h>
  19
  20 #include <asm/mach/arch.h>
  21 #include <asm/mach-types.h>
  22 #include <asm/mach/time.h>
  23
  24 #include "common.h"
  25 #include "devices-imx27.h"
  26 #include "ehci.h"
  27 #include "hardware.h"
  28 #include "iomux-mx27.h"
  29 #include "ulpi.h"
  30
  31 #define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
  32 #define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)
  33 #define SPI1_SS0 (GPIO_PORTD + 28)
  34 #define SPI1_SS1 (GPIO_PORTD + 27)
  35 #define SD2_CD (GPIO_PORTC + 29)
  36
  37 static const int pca100_pins[] __initconst = {
  38         /* UART1 */
  39         PE12_PF_UART1_TXD,
  40         PE13_PF_UART1_RXD,
  41         PE14_PF_UART1_CTS,
  42         PE15_PF_UART1_RTS,
  43         /* SDHC */
  44         PB4_PF_SD2_D0,
  45         PB5_PF_SD2_D1,
  46         PB6_PF_SD2_D2,
  47         PB7_PF_SD2_D3,
  48         PB8_PF_SD2_CMD,
  49         PB9_PF_SD2_CLK,
  50         SD2_CD | GPIO_GPIO | GPIO_IN,
  51         /* FEC */
  52         PD0_AIN_FEC_TXD0,
  53         PD1_AIN_FEC_TXD1,
  54         PD2_AIN_FEC_TXD2,
  55         PD3_AIN_FEC_TXD3,
  56         PD4_AOUT_FEC_RX_ER,
  57         PD5_AOUT_FEC_RXD1,
  58         PD6_AOUT_FEC_RXD2,
  59         PD7_AOUT_FEC_RXD3,
  60         PD8_AF_FEC_MDIO,
  61         PD9_AIN_FEC_MDC,
  62         PD10_AOUT_FEC_CRS,
  63         PD11_AOUT_FEC_TX_CLK,
  64         PD12_AOUT_FEC_RXD0,
  65         PD13_AOUT_FEC_RX_DV,
  66         PD14_AOUT_FEC_RX_CLK,
  67         PD15_AOUT_FEC_COL,
  68         PD16_AIN_FEC_TX_ER,
  69         PF23_AIN_FEC_TX_EN,
  70         /* SSI1 */
  71         PC20_PF_SSI1_FS,
  72         PC21_PF_SSI1_RXD,
  73         PC22_PF_SSI1_TXD,
  74         PC23_PF_SSI1_CLK,
  75         /* onboard I2C */
  76         PC5_PF_I2C2_SDA,
  77         PC6_PF_I2C2_SCL,
  78         /* external I2C */
  79         PD17_PF_I2C_DATA,
  80         PD18_PF_I2C_CLK,
  81         /* SPI1 */
  82         PD25_PF_CSPI1_RDY,
  83         PD29_PF_CSPI1_SCLK,
  84         PD30_PF_CSPI1_MISO,
  85         PD31_PF_CSPI1_MOSI,
  86         /* OTG */
  87         OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
  88         PC7_PF_USBOTG_DATA5,
  89         PC8_PF_USBOTG_DATA6,
  90         PC9_PF_USBOTG_DATA0,
  91         PC10_PF_USBOTG_DATA2,
  92         PC11_PF_USBOTG_DATA1,
  93         PC12_PF_USBOTG_DATA4,
  94         PC13_PF_USBOTG_DATA3,
  95         PE0_PF_USBOTG_NXT,
  96         PE1_PF_USBOTG_STP,
  97         PE2_PF_USBOTG_DIR,
  98         PE24_PF_USBOTG_CLK,
  99         PE25_PF_USBOTG_DATA7,
 100         /* USBH2 */
 101         USBH2_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
 102         PA0_PF_USBH2_CLK,
 103         PA1_PF_USBH2_DIR,
 104         PA2_PF_USBH2_DATA7,
 105         PA3_PF_USBH2_NXT,
 106         PA4_PF_USBH2_STP,
 107         PD19_AF_USBH2_DATA4,
 108         PD20_AF_USBH2_DATA3,
 109         PD21_AF_USBH2_DATA6,
 110         PD22_AF_USBH2_DATA0,
 111         PD23_AF_USBH2_DATA2,
 112         PD24_AF_USBH2_DATA1,
 113         PD26_AF_USBH2_DATA5,
 114         /* display */
 115         PA5_PF_LSCLK,
 116         PA6_PF_LD0,
 117         PA7_PF_LD1,
 118         PA8_PF_LD2,
 119         PA9_PF_LD3,
 120         PA10_PF_LD4,
 121         PA11_PF_LD5,
 122         PA12_PF_LD6,
 123         PA13_PF_LD7,
 124         PA14_PF_LD8,
 125         PA15_PF_LD9,
 126         PA16_PF_LD10,
 127         PA17_PF_LD11,
 128         PA18_PF_LD12,
 129         PA19_PF_LD13,
 130         PA20_PF_LD14,
 131         PA21_PF_LD15,
 132         PA22_PF_LD16,
 133         PA23_PF_LD17,
 134         PA26_PF_PS,
 135         PA28_PF_HSYNC,
 136         PA29_PF_VSYNC,
 137         PA31_PF_OE_ACD,
 138         /* free GPIO */
 139         GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN, /* GPIO0_IRQ */
 140         GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN, /* GPIO1_IRQ */
 141         GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN, /* GPIO2_IRQ */
 142 };
 143
 144 static const struct imxuart_platform_data uart_pdata __initconst = {
 145         .flags = IMXUART_HAVE_RTSCTS,
 146 };
 147
 148 static const struct mxc_nand_platform_data
 149 pca100_nand_board_info __initconst = {
 150         .width = 1,
 151         .hw_ecc = 1,
 152 };
 153
 154 static const struct imxi2c_platform_data pca100_i2c1_data __initconst = {
 155         .bitrate = 100000,
 156 };
 157
 158 static const struct property_entry board_eeprom_properties[] = {
 159         PROPERTY_ENTRY_U32("pagesize", 32),
 160         { }
 161 };
 162
 163 static struct i2c_board_info pca100_i2c_devices[] = {
 164         {
 165                 I2C_BOARD_INFO("24c32", 0x52), /* E0=0, E1=1, E2=0 */
 166                 .properties = board_eeprom_properties,
 167         }, {
 168                 I2C_BOARD_INFO("pcf8563", 0x51),
 169         }, {
 170                 I2C_BOARD_INFO("lm75", 0x4a),
 171         }
 172 };
 173
 174 static struct spi_eeprom at25320 = {
 175         .name           = "at25320an",
 176         .byte_len       = 4096,
 177         .page_size      = 32,
 178         .flags          = EE_ADDR2,
 179 };
 180
 181 static struct spi_board_info pca100_spi_board_info[] __initdata = {
 182         {
 183                 .modalias = "at25",
 184                 .max_speed_hz = 30000,
 185                 .bus_num = 0,
 186                 .chip_select = 1,
 187                 .platform_data = &at25320,
 188         },
 189 };
 190
 191 static int pca100_spi_cs[] = {SPI1_SS0, SPI1_SS1};
 192
 193 static const struct spi_imx_master pca100_spi0_data __initconst = {
 194         .chipselect     = pca100_spi_cs,
 195         .num_chipselect = ARRAY_SIZE(pca100_spi_cs),
 196 };
 197
 198 static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
 199 {
 200         mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);
 201         gpio_set_value(GPIO_PORTC + 20, 1);
 202         udelay(2);
 203         gpio_set_value(GPIO_PORTC + 20, 0);
 204         mxc_gpio_mode(PC20_PF_SSI1_FS);
 205         msleep(2);
 206 }
 207
 208 static void pca100_ac97_cold_reset(struct snd_ac97 *ac97)
 209 {
 210         mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);  /* FS */
 211         gpio_set_value(GPIO_PORTC + 20, 0);
 212         mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT);  /* TX */
 213         gpio_set_value(GPIO_PORTC + 22, 0);
 214         mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT);  /* reset */
 215         gpio_set_value(GPIO_PORTC + 28, 0);
 216         udelay(10);
 217         gpio_set_value(GPIO_PORTC + 28, 1);
 218         mxc_gpio_mode(PC20_PF_SSI1_FS);
 219         mxc_gpio_mode(PC22_PF_SSI1_TXD);
 220         msleep(2);
 221 }
 222
 223 static const struct imx_ssi_platform_data pca100_ssi_pdata __initconst = {
 224         .ac97_reset             = pca100_ac97_cold_reset,
 225         .ac97_warm_reset        = pca100_ac97_warm_reset,
 226         .flags                  = IMX_SSI_USE_AC97,
 227 };
 228
 229 static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
 230                 void *data)
 231 {
 232         int ret;
 233
 234         ret = request_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), detect_irq,
 235                           IRQF_TRIGGER_FALLING, "imx-mmc-detect", data);
 236         if (ret)
 237                 printk(KERN_ERR
 238                         "pca100: Failed to request irq for sd/mmc detection\n");
 239
 240         return ret;
 241 }
 242
 243 static void pca100_sdhc2_exit(struct device *dev, void *data)
 244 {
 245         free_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), data);
 246 }
 247
 248 static const struct imxmmc_platform_data sdhc_pdata __initconst = {
 249         .init = pca100_sdhc2_init,
 250         .exit = pca100_sdhc2_exit,
 251 };
 252
 253 static int otg_phy_init(struct platform_device *pdev)
 254 {
 255         gpio_set_value(OTG_PHY_CS_GPIO, 0);
 256
 257         mdelay(10);
 258
 259         return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
 260 }
 261
 262 static struct mxc_usbh_platform_data otg_pdata __initdata = {
 263         .init   = otg_phy_init,
 264         .portsc = MXC_EHCI_MODE_ULPI,
 265 };
 266
 267 static int usbh2_phy_init(struct platform_device *pdev)
 268 {
 269         gpio_set_value(USBH2_PHY_CS_GPIO, 0);
 270
 271         mdelay(10);
 272
 273         return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
 274 }
 275
 276 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
 277         .init   = usbh2_phy_init,
 278         .portsc = MXC_EHCI_MODE_ULPI,
 279 };
 280
 281 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
 282         .operating_mode = FSL_USB2_DR_DEVICE,
 283         .phy_mode       = FSL_USB2_PHY_ULPI,
 284 };
 285
 286 static bool otg_mode_host __initdata;
 287
 288 static int __init pca100_otg_mode(char *options)
 289 {
 290         if (!strcmp(options, "host"))
 291                 otg_mode_host = true;
 292         else if (!strcmp(options, "device"))
 293                 otg_mode_host = false;
 294         else
 295                 pr_info("otg_mode neither \"host\" nor \"device\". "
 296                         "Defaulting to device\n");
 297         return 1;
 298 }
 299 __setup("otg_mode=", pca100_otg_mode);
 300
 301 /* framebuffer info */
 302 static struct imx_fb_videomode pca100_fb_modes[] = {
 303         {
 304                 .mode = {
 305                         .name           = "EMERGING-ETV570G0DHU",
 306                         .refresh        = 60,
 307                         .xres           = 640,
 308                         .yres           = 480,
 309                         .pixclock       = 39722, /* in ps (25.175 MHz) */
 310                         .hsync_len      = 30,
 311                         .left_margin    = 114,
 312                         .right_margin   = 16,
 313                         .vsync_len      = 3,
 314                         .upper_margin   = 32,
 315                         .lower_margin   = 0,
 316                 },
 317                 /*
 318                  * TFT
 319                  * Pixel pol active high
 320                  * HSYNC active low
 321                  * VSYNC active low
 322                  * use HSYNC for ACD count
 323                  * line clock disable while idle
 324                  * always enable line clock even if no data
 325                  */
 326                 .pcr = 0xf0c08080,
 327                 .bpp = 16,
 328         },
 329 };
 330
 331 static const struct imx_fb_platform_data pca100_fb_data __initconst = {
 332         .mode = pca100_fb_modes,
 333         .num_modes = ARRAY_SIZE(pca100_fb_modes),
 334
 335         .pwmr           = 0x00A903FF,
 336         .lscr1          = 0x00120300,
 337         .dmacr          = 0x00020010,
 338 };
 339
 340 static void __init pca100_init(void)
 341 {
 342         int ret;
 343
 344         imx27_soc_init();
 345
 346         ret = mxc_gpio_setup_multiple_pins(pca100_pins,
 347                         ARRAY_SIZE(pca100_pins), "PCA100");
 348         if (ret)
 349                 printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);
 350
 351         imx27_add_imx_uart0(&uart_pdata);
 352
 353         imx27_add_mxc_nand(&pca100_nand_board_info);
 354
 355         /* only the i2c master 1 is used on this CPU card */
 356         i2c_register_board_info(1, pca100_i2c_devices,
 357                                 ARRAY_SIZE(pca100_i2c_devices));
 358
 359         imx27_add_imx_i2c(1, &pca100_i2c1_data);
 360
 361         mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_IN);
 362         mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_IN);
 363         spi_register_board_info(pca100_spi_board_info,
 364                                 ARRAY_SIZE(pca100_spi_board_info));
 365         imx27_add_spi_imx0(&pca100_spi0_data);
 366
 367         imx27_add_imx_fb(&pca100_fb_data);
 368
 369         imx27_add_fec(NULL);
 370         imx27_add_imx2_wdt();
 371         imx27_add_mxc_w1();
 372 }
 373
 374 static void __init pca100_late_init(void)
 375 {
 376         imx27_add_imx_ssi(0, &pca100_ssi_pdata);
 377
 378         imx27_add_mxc_mmc(1, &sdhc_pdata);
 379
 380         gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs");
 381         gpio_direction_output(OTG_PHY_CS_GPIO, 1);
 382         gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs");
 383         gpio_direction_output(USBH2_PHY_CS_GPIO, 1);
 384
 385         if (otg_mode_host) {
 386                 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 387                                 ULPI_OTG_DRVVBUS_EXT);
 388
 389                 if (otg_pdata.otg)
 390                         imx27_add_mxc_ehci_otg(&otg_pdata);
 391         } else {
 392                 gpio_set_value(OTG_PHY_CS_GPIO, 0);
 393                 imx27_add_fsl_usb2_udc(&otg_device_pdata);
 394         }
 395
 396         usbh2_pdata.otg = imx_otg_ulpi_create(
 397                         ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
 398
 399         if (usbh2_pdata.otg)
 400                 imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
 401 }
 402
 403 static void __init pca100_timer_init(void)
 404 {
 405         mx27_clocks_init(26000000);
 406 }
 407
 408 MACHINE_START(PCA100, "phyCARD-i.MX27")
 409         .atag_offset = 0x100,
 410         .map_io = mx27_map_io,
 411         .init_early = imx27_init_early,
 412         .init_irq = mx27_init_irq,
 413         .init_machine   = pca100_init,
 414         .init_late      = pca100_late_init,
 415         .init_time      = pca100_timer_init,
 416         .restart        = mxc_restart,
 417 MACHINE_END