1 /* 2 * Copyright (C) 2010-2013 Freescale Semiconductor, Inc. 3 * Copyright (C) 2013, Boundary Devices <info@boundarydevices.com> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <asm/io.h> 10 #include <asm/arch/clock.h> 11 #include <asm/arch/imx-regs.h> 12 #include <asm/arch/iomux.h> 13 #include <asm/arch/sys_proto.h> 14 #include <malloc.h> 15 #include <asm/arch/mx6-pins.h> 16 #include <asm/errno.h> 17 #include <asm/gpio.h> 18 #include <asm/imx-common/iomux-v3.h> 19 #include <asm/imx-common/mxc_i2c.h> 20 #include <asm/imx-common/sata.h> 21 #include <asm/imx-common/boot_mode.h> 22 #include <asm/imx-common/video.h> 23 #include <mmc.h> 24 #include <fsl_esdhc.h> 25 #include <micrel.h> 26 #include <miiphy.h> 27 #include <netdev.h> 28 #include <asm/arch/crm_regs.h> 29 #include <asm/arch/mxc_hdmi.h> 30 #include <i2c.h> 31 32 DECLARE_GLOBAL_DATA_PTR; 33 #define GP_USB_OTG_PWR IMX_GPIO_NR(3, 22) 34 35 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 36 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ 37 PAD_CTL_SRE_FAST | PAD_CTL_HYS) 38 39 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \ 40 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \ 41 PAD_CTL_SRE_FAST | PAD_CTL_HYS) 42 43 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 44 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS) 45 46 #define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \ 47 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) 48 49 #define BUTTON_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 50 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS) 51 52 #define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 53 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ 54 PAD_CTL_ODE | PAD_CTL_SRE_FAST) 55 56 #define WEAK_PULLUP (PAD_CTL_PUS_100K_UP | \ 57 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ 58 PAD_CTL_SRE_SLOW) 59 60 #define WEAK_PULLDOWN (PAD_CTL_PUS_100K_DOWN | \ 61 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ 62 PAD_CTL_HYS | PAD_CTL_SRE_SLOW) 63 64 #define OUTPUT_40OHM (PAD_CTL_SPEED_MED|PAD_CTL_DSE_40ohm) 65 66 int dram_init(void) 67 { 68 gd->ram_size = ((ulong)CONFIG_DDR_MB * 1024 * 1024); 69 70 return 0; 71 } 72 73 iomux_v3_cfg_t const uart1_pads[] = { 74 MX6_PAD_SD3_DAT6__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 75 MX6_PAD_SD3_DAT7__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 76 }; 77 78 iomux_v3_cfg_t const uart2_pads[] = { 79 MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 80 MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 81 }; 82 83 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL) 84 85 /* I2C1, SGTL5000 */ 86 struct i2c_pads_info i2c_pad_info0 = { 87 .scl = { 88 .i2c_mode = MX6_PAD_EIM_D21__I2C1_SCL | PC, 89 .gpio_mode = MX6_PAD_EIM_D21__GPIO3_IO21 | PC, 90 .gp = IMX_GPIO_NR(3, 21) 91 }, 92 .sda = { 93 .i2c_mode = MX6_PAD_EIM_D28__I2C1_SDA | PC, 94 .gpio_mode = MX6_PAD_EIM_D28__GPIO3_IO28 | PC, 95 .gp = IMX_GPIO_NR(3, 28) 96 } 97 }; 98 99 /* I2C2 Camera, MIPI */ 100 struct i2c_pads_info i2c_pad_info1 = { 101 .scl = { 102 .i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL | PC, 103 .gpio_mode = MX6_PAD_KEY_COL3__GPIO4_IO12 | PC, 104 .gp = IMX_GPIO_NR(4, 12) 105 }, 106 .sda = { 107 .i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | PC, 108 .gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 | PC, 109 .gp = IMX_GPIO_NR(4, 13) 110 } 111 }; 112 113 /* I2C3, J15 - RGB connector */ 114 struct i2c_pads_info i2c_pad_info2 = { 115 .scl = { 116 .i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | PC, 117 .gpio_mode = MX6_PAD_GPIO_5__GPIO1_IO05 | PC, 118 .gp = IMX_GPIO_NR(1, 5) 119 }, 120 .sda = { 121 .i2c_mode = MX6_PAD_GPIO_16__I2C3_SDA | PC, 122 .gpio_mode = MX6_PAD_GPIO_16__GPIO7_IO11 | PC, 123 .gp = IMX_GPIO_NR(7, 11) 124 } 125 }; 126 127 static iomux_v3_cfg_t const usdhc2_pads[] = { 128 MX6_PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 129 MX6_PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 130 MX6_PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 131 MX6_PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 132 MX6_PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 133 MX6_PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 134 }; 135 136 iomux_v3_cfg_t const usdhc3_pads[] = { 137 MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 138 MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 139 MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 140 MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 141 MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 142 MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 143 MX6_PAD_SD3_DAT5__GPIO7_IO00 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */ 144 }; 145 146 iomux_v3_cfg_t const usdhc4_pads[] = { 147 MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 148 MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 149 MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 150 MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 151 MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 152 MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 153 MX6_PAD_NANDF_D6__GPIO2_IO06 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */ 154 }; 155 156 iomux_v3_cfg_t const enet_pads1[] = { 157 MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL), 158 MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL), 159 MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL), 160 MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 161 MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 162 MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 163 MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 164 MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), 165 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL), 166 /* pin 35 - 1 (PHY_AD2) on reset */ 167 MX6_PAD_RGMII_RXC__GPIO6_IO30 | MUX_PAD_CTRL(NO_PAD_CTRL), 168 /* pin 32 - 1 - (MODE0) all */ 169 MX6_PAD_RGMII_RD0__GPIO6_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL), 170 /* pin 31 - 1 - (MODE1) all */ 171 MX6_PAD_RGMII_RD1__GPIO6_IO27 | MUX_PAD_CTRL(NO_PAD_CTRL), 172 /* pin 28 - 1 - (MODE2) all */ 173 MX6_PAD_RGMII_RD2__GPIO6_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL), 174 /* pin 27 - 1 - (MODE3) all */ 175 MX6_PAD_RGMII_RD3__GPIO6_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL), 176 /* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */ 177 MX6_PAD_RGMII_RX_CTL__GPIO6_IO24 | MUX_PAD_CTRL(NO_PAD_CTRL), 178 /* pin 42 PHY nRST */ 179 MX6_PAD_EIM_D23__GPIO3_IO23 | MUX_PAD_CTRL(NO_PAD_CTRL), 180 MX6_PAD_ENET_RXD0__GPIO1_IO27 | MUX_PAD_CTRL(NO_PAD_CTRL), 181 }; 182 183 iomux_v3_cfg_t const enet_pads2[] = { 184 MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL), 185 MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 186 MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 187 MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 188 MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 189 MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), 190 }; 191 192 static iomux_v3_cfg_t const misc_pads[] = { 193 MX6_PAD_GPIO_1__USB_OTG_ID | MUX_PAD_CTRL(WEAK_PULLUP), 194 MX6_PAD_KEY_COL4__USB_OTG_OC | MUX_PAD_CTRL(WEAK_PULLUP), 195 MX6_PAD_EIM_D30__USB_H1_OC | MUX_PAD_CTRL(WEAK_PULLUP), 196 /* OTG Power enable */ 197 MX6_PAD_EIM_D22__GPIO3_IO22 | MUX_PAD_CTRL(OUTPUT_40OHM), 198 }; 199 200 /* wl1271 pads on nitrogen6x */ 201 iomux_v3_cfg_t const wl12xx_pads[] = { 202 (MX6_PAD_NANDF_CS1__GPIO6_IO14 & ~MUX_PAD_CTRL_MASK) 203 | MUX_PAD_CTRL(WEAK_PULLDOWN), 204 (MX6_PAD_NANDF_CS2__GPIO6_IO15 & ~MUX_PAD_CTRL_MASK) 205 | MUX_PAD_CTRL(OUTPUT_40OHM), 206 (MX6_PAD_NANDF_CS3__GPIO6_IO16 & ~MUX_PAD_CTRL_MASK) 207 | MUX_PAD_CTRL(OUTPUT_40OHM), 208 }; 209 #define WL12XX_WL_IRQ_GP IMX_GPIO_NR(6, 14) 210 #define WL12XX_WL_ENABLE_GP IMX_GPIO_NR(6, 15) 211 #define WL12XX_BT_ENABLE_GP IMX_GPIO_NR(6, 16) 212 213 /* Button assignments for J14 */ 214 static iomux_v3_cfg_t const button_pads[] = { 215 /* Menu */ 216 MX6_PAD_NANDF_D1__GPIO2_IO01 | MUX_PAD_CTRL(BUTTON_PAD_CTRL), 217 /* Back */ 218 MX6_PAD_NANDF_D2__GPIO2_IO02 | MUX_PAD_CTRL(BUTTON_PAD_CTRL), 219 /* Labelled Search (mapped to Power under Android) */ 220 MX6_PAD_NANDF_D3__GPIO2_IO03 | MUX_PAD_CTRL(BUTTON_PAD_CTRL), 221 /* Home */ 222 MX6_PAD_NANDF_D4__GPIO2_IO04 | MUX_PAD_CTRL(BUTTON_PAD_CTRL), 223 /* Volume Down */ 224 MX6_PAD_GPIO_19__GPIO4_IO05 | MUX_PAD_CTRL(BUTTON_PAD_CTRL), 225 /* Volume Up */ 226 MX6_PAD_GPIO_18__GPIO7_IO13 | MUX_PAD_CTRL(BUTTON_PAD_CTRL), 227 }; 228 229 static void setup_iomux_enet(void) 230 { 231 gpio_direction_output(IMX_GPIO_NR(3, 23), 0); /* SABRE Lite PHY rst */ 232 gpio_direction_output(IMX_GPIO_NR(1, 27), 0); /* Nitrogen6X PHY rst */ 233 gpio_direction_output(IMX_GPIO_NR(6, 30), 1); 234 gpio_direction_output(IMX_GPIO_NR(6, 25), 1); 235 gpio_direction_output(IMX_GPIO_NR(6, 27), 1); 236 gpio_direction_output(IMX_GPIO_NR(6, 28), 1); 237 gpio_direction_output(IMX_GPIO_NR(6, 29), 1); 238 imx_iomux_v3_setup_multiple_pads(enet_pads1, ARRAY_SIZE(enet_pads1)); 239 gpio_direction_output(IMX_GPIO_NR(6, 24), 1); 240 241 /* Need delay 10ms according to KSZ9021 spec */ 242 udelay(1000 * 10); 243 gpio_set_value(IMX_GPIO_NR(3, 23), 1); /* SABRE Lite PHY reset */ 244 gpio_set_value(IMX_GPIO_NR(1, 27), 1); /* Nitrogen6X PHY reset */ 245 246 imx_iomux_v3_setup_multiple_pads(enet_pads2, ARRAY_SIZE(enet_pads2)); 247 } 248 249 iomux_v3_cfg_t const usb_pads[] = { 250 MX6_PAD_GPIO_17__GPIO7_IO12 | MUX_PAD_CTRL(NO_PAD_CTRL), 251 }; 252 253 static void setup_iomux_uart(void) 254 { 255 imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); 256 imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads)); 257 } 258 259 #ifdef CONFIG_USB_EHCI_MX6 260 int board_ehci_hcd_init(int port) 261 { 262 imx_iomux_v3_setup_multiple_pads(usb_pads, ARRAY_SIZE(usb_pads)); 263 264 /* Reset USB hub */ 265 gpio_direction_output(IMX_GPIO_NR(7, 12), 0); 266 mdelay(2); 267 gpio_set_value(IMX_GPIO_NR(7, 12), 1); 268 269 return 0; 270 } 271 272 int board_ehci_power(int port, int on) 273 { 274 if (port) 275 return 0; 276 gpio_set_value(GP_USB_OTG_PWR, on); 277 return 0; 278 } 279 280 #endif 281 282 #ifdef CONFIG_FSL_ESDHC 283 struct fsl_esdhc_cfg usdhc_cfg[2] = { 284 {USDHC3_BASE_ADDR}, 285 {USDHC4_BASE_ADDR}, 286 }; 287 288 int board_mmc_getcd(struct mmc *mmc) 289 { 290 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; 291 int gp_cd = (cfg->esdhc_base == USDHC3_BASE_ADDR) ? IMX_GPIO_NR(7, 0) : 292 IMX_GPIO_NR(2, 6); 293 294 gpio_direction_input(gp_cd); 295 return !gpio_get_value(gp_cd); 296 } 297 298 int board_mmc_init(bd_t *bis) 299 { 300 s32 status = 0; 301 u32 index = 0; 302 303 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); 304 usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK); 305 306 usdhc_cfg[0].max_bus_width = 4; 307 usdhc_cfg[1].max_bus_width = 4; 308 309 for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) { 310 switch (index) { 311 case 0: 312 imx_iomux_v3_setup_multiple_pads( 313 usdhc3_pads, ARRAY_SIZE(usdhc3_pads)); 314 break; 315 case 1: 316 imx_iomux_v3_setup_multiple_pads( 317 usdhc4_pads, ARRAY_SIZE(usdhc4_pads)); 318 break; 319 default: 320 printf("Warning: you configured more USDHC controllers" 321 "(%d) then supported by the board (%d)\n", 322 index + 1, CONFIG_SYS_FSL_USDHC_NUM); 323 return status; 324 } 325 326 status |= fsl_esdhc_initialize(bis, &usdhc_cfg[index]); 327 } 328 329 return status; 330 } 331 #endif 332 333 #ifdef CONFIG_MXC_SPI 334 iomux_v3_cfg_t const ecspi1_pads[] = { 335 /* SS1 */ 336 MX6_PAD_EIM_D19__GPIO3_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL), 337 MX6_PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL), 338 MX6_PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL), 339 MX6_PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL), 340 }; 341 342 void setup_spi(void) 343 { 344 imx_iomux_v3_setup_multiple_pads(ecspi1_pads, 345 ARRAY_SIZE(ecspi1_pads)); 346 } 347 #endif 348 349 int board_phy_config(struct phy_device *phydev) 350 { 351 /* min rx data delay */ 352 ksz9021_phy_extended_write(phydev, 353 MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW, 0x0); 354 /* min tx data delay */ 355 ksz9021_phy_extended_write(phydev, 356 MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW, 0x0); 357 /* max rx/tx clock delay, min rx/tx control */ 358 ksz9021_phy_extended_write(phydev, 359 MII_KSZ9021_EXT_RGMII_CLOCK_SKEW, 0xf0f0); 360 if (phydev->drv->config) 361 phydev->drv->config(phydev); 362 363 return 0; 364 } 365 366 int board_eth_init(bd_t *bis) 367 { 368 uint32_t base = IMX_FEC_BASE; 369 struct mii_dev *bus = NULL; 370 struct phy_device *phydev = NULL; 371 int ret; 372 373 setup_iomux_enet(); 374 375 #ifdef CONFIG_FEC_MXC 376 bus = fec_get_miibus(base, -1); 377 if (!bus) 378 return 0; 379 /* scan phy 4,5,6,7 */ 380 phydev = phy_find_by_mask(bus, (0xf << 4), PHY_INTERFACE_MODE_RGMII); 381 if (!phydev) { 382 free(bus); 383 return 0; 384 } 385 printf("using phy at %d\n", phydev->addr); 386 ret = fec_probe(bis, -1, base, bus, phydev); 387 if (ret) { 388 printf("FEC MXC: %s:failed\n", __func__); 389 free(phydev); 390 free(bus); 391 } 392 #endif 393 394 #ifdef CONFIG_CI_UDC 395 /* For otg ethernet*/ 396 usb_eth_initialize(bis); 397 #endif 398 return 0; 399 } 400 401 static void setup_buttons(void) 402 { 403 imx_iomux_v3_setup_multiple_pads(button_pads, 404 ARRAY_SIZE(button_pads)); 405 } 406 407 #if defined(CONFIG_VIDEO_IPUV3) 408 409 static iomux_v3_cfg_t const backlight_pads[] = { 410 /* Backlight on RGB connector: J15 */ 411 MX6_PAD_SD1_DAT3__GPIO1_IO21 | MUX_PAD_CTRL(NO_PAD_CTRL), 412 #define RGB_BACKLIGHT_GP IMX_GPIO_NR(1, 21) 413 414 /* Backlight on LVDS connector: J6 */ 415 MX6_PAD_SD1_CMD__GPIO1_IO18 | MUX_PAD_CTRL(NO_PAD_CTRL), 416 #define LVDS_BACKLIGHT_GP IMX_GPIO_NR(1, 18) 417 }; 418 419 static iomux_v3_cfg_t const rgb_pads[] = { 420 MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK, 421 MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15, 422 MX6_PAD_DI0_PIN2__IPU1_DI0_PIN02, 423 MX6_PAD_DI0_PIN3__IPU1_DI0_PIN03, 424 MX6_PAD_DI0_PIN4__GPIO4_IO20, 425 MX6_PAD_DISP0_DAT0__IPU1_DISP0_DATA00, 426 MX6_PAD_DISP0_DAT1__IPU1_DISP0_DATA01, 427 MX6_PAD_DISP0_DAT2__IPU1_DISP0_DATA02, 428 MX6_PAD_DISP0_DAT3__IPU1_DISP0_DATA03, 429 MX6_PAD_DISP0_DAT4__IPU1_DISP0_DATA04, 430 MX6_PAD_DISP0_DAT5__IPU1_DISP0_DATA05, 431 MX6_PAD_DISP0_DAT6__IPU1_DISP0_DATA06, 432 MX6_PAD_DISP0_DAT7__IPU1_DISP0_DATA07, 433 MX6_PAD_DISP0_DAT8__IPU1_DISP0_DATA08, 434 MX6_PAD_DISP0_DAT9__IPU1_DISP0_DATA09, 435 MX6_PAD_DISP0_DAT10__IPU1_DISP0_DATA10, 436 MX6_PAD_DISP0_DAT11__IPU1_DISP0_DATA11, 437 MX6_PAD_DISP0_DAT12__IPU1_DISP0_DATA12, 438 MX6_PAD_DISP0_DAT13__IPU1_DISP0_DATA13, 439 MX6_PAD_DISP0_DAT14__IPU1_DISP0_DATA14, 440 MX6_PAD_DISP0_DAT15__IPU1_DISP0_DATA15, 441 MX6_PAD_DISP0_DAT16__IPU1_DISP0_DATA16, 442 MX6_PAD_DISP0_DAT17__IPU1_DISP0_DATA17, 443 MX6_PAD_DISP0_DAT18__IPU1_DISP0_DATA18, 444 MX6_PAD_DISP0_DAT19__IPU1_DISP0_DATA19, 445 MX6_PAD_DISP0_DAT20__IPU1_DISP0_DATA20, 446 MX6_PAD_DISP0_DAT21__IPU1_DISP0_DATA21, 447 MX6_PAD_DISP0_DAT22__IPU1_DISP0_DATA22, 448 MX6_PAD_DISP0_DAT23__IPU1_DISP0_DATA23, 449 }; 450 451 static void do_enable_hdmi(struct display_info_t const *dev) 452 { 453 imx_enable_hdmi_phy(); 454 } 455 456 static int detect_i2c(struct display_info_t const *dev) 457 { 458 return ((0 == i2c_set_bus_num(dev->bus)) 459 && 460 (0 == i2c_probe(dev->addr))); 461 } 462 463 static void enable_lvds(struct display_info_t const *dev) 464 { 465 struct iomuxc *iomux = (struct iomuxc *) 466 IOMUXC_BASE_ADDR; 467 u32 reg = readl(&iomux->gpr[2]); 468 reg |= IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT; 469 writel(reg, &iomux->gpr[2]); 470 gpio_direction_output(LVDS_BACKLIGHT_GP, 1); 471 } 472 473 static void enable_rgb(struct display_info_t const *dev) 474 { 475 imx_iomux_v3_setup_multiple_pads( 476 rgb_pads, 477 ARRAY_SIZE(rgb_pads)); 478 gpio_direction_output(RGB_BACKLIGHT_GP, 1); 479 } 480 481 struct display_info_t const displays[] = {{ 482 .bus = -1, 483 .addr = 0, 484 .pixfmt = IPU_PIX_FMT_RGB24, 485 .detect = detect_hdmi, 486 .enable = do_enable_hdmi, 487 .mode = { 488 .name = "HDMI", 489 .refresh = 60, 490 .xres = 1024, 491 .yres = 768, 492 .pixclock = 15385, 493 .left_margin = 220, 494 .right_margin = 40, 495 .upper_margin = 21, 496 .lower_margin = 7, 497 .hsync_len = 60, 498 .vsync_len = 10, 499 .sync = FB_SYNC_EXT, 500 .vmode = FB_VMODE_NONINTERLACED 501 } }, { 502 .bus = 2, 503 .addr = 0x4, 504 .pixfmt = IPU_PIX_FMT_LVDS666, 505 .detect = detect_i2c, 506 .enable = enable_lvds, 507 .mode = { 508 .name = "Hannstar-XGA", 509 .refresh = 60, 510 .xres = 1024, 511 .yres = 768, 512 .pixclock = 15385, 513 .left_margin = 220, 514 .right_margin = 40, 515 .upper_margin = 21, 516 .lower_margin = 7, 517 .hsync_len = 60, 518 .vsync_len = 10, 519 .sync = FB_SYNC_EXT, 520 .vmode = FB_VMODE_NONINTERLACED 521 } }, { 522 .bus = 2, 523 .addr = 0x38, 524 .pixfmt = IPU_PIX_FMT_LVDS666, 525 .detect = detect_i2c, 526 .enable = enable_lvds, 527 .mode = { 528 .name = "wsvga-lvds", 529 .refresh = 60, 530 .xres = 1024, 531 .yres = 600, 532 .pixclock = 15385, 533 .left_margin = 220, 534 .right_margin = 40, 535 .upper_margin = 21, 536 .lower_margin = 7, 537 .hsync_len = 60, 538 .vsync_len = 10, 539 .sync = FB_SYNC_EXT, 540 .vmode = FB_VMODE_NONINTERLACED 541 } }, { 542 .bus = 2, 543 .addr = 0x48, 544 .pixfmt = IPU_PIX_FMT_RGB666, 545 .detect = detect_i2c, 546 .enable = enable_rgb, 547 .mode = { 548 .name = "wvga-rgb", 549 .refresh = 57, 550 .xres = 800, 551 .yres = 480, 552 .pixclock = 37037, 553 .left_margin = 40, 554 .right_margin = 60, 555 .upper_margin = 10, 556 .lower_margin = 10, 557 .hsync_len = 20, 558 .vsync_len = 10, 559 .sync = 0, 560 .vmode = FB_VMODE_NONINTERLACED 561 } } }; 562 size_t display_count = ARRAY_SIZE(displays); 563 564 int board_cfb_skip(void) 565 { 566 return NULL != getenv("novideo"); 567 } 568 569 static void setup_display(void) 570 { 571 struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; 572 struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR; 573 int reg; 574 575 enable_ipu_clock(); 576 imx_setup_hdmi(); 577 /* Turn on LDB0,IPU,IPU DI0 clocks */ 578 reg = __raw_readl(&mxc_ccm->CCGR3); 579 reg |= MXC_CCM_CCGR3_LDB_DI0_MASK; 580 writel(reg, &mxc_ccm->CCGR3); 581 582 /* set LDB0, LDB1 clk select to 011/011 */ 583 reg = readl(&mxc_ccm->cs2cdr); 584 reg &= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK 585 |MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK); 586 reg |= (3<<MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET) 587 |(3<<MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_OFFSET); 588 writel(reg, &mxc_ccm->cs2cdr); 589 590 reg = readl(&mxc_ccm->cscmr2); 591 reg |= MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV; 592 writel(reg, &mxc_ccm->cscmr2); 593 594 reg = readl(&mxc_ccm->chsccdr); 595 reg |= (CHSCCDR_CLK_SEL_LDB_DI0 596 <<MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET); 597 writel(reg, &mxc_ccm->chsccdr); 598 599 reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES 600 |IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_HIGH 601 |IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_LOW 602 |IOMUXC_GPR2_BIT_MAPPING_CH1_SPWG 603 |IOMUXC_GPR2_DATA_WIDTH_CH1_18BIT 604 |IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG 605 |IOMUXC_GPR2_DATA_WIDTH_CH0_18BIT 606 |IOMUXC_GPR2_LVDS_CH1_MODE_DISABLED 607 |IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0; 608 writel(reg, &iomux->gpr[2]); 609 610 reg = readl(&iomux->gpr[3]); 611 reg = (reg & ~(IOMUXC_GPR3_LVDS0_MUX_CTL_MASK 612 |IOMUXC_GPR3_HDMI_MUX_CTL_MASK)) 613 | (IOMUXC_GPR3_MUX_SRC_IPU1_DI0 614 <<IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET); 615 writel(reg, &iomux->gpr[3]); 616 617 /* backlights off until needed */ 618 imx_iomux_v3_setup_multiple_pads(backlight_pads, 619 ARRAY_SIZE(backlight_pads)); 620 gpio_direction_input(LVDS_BACKLIGHT_GP); 621 gpio_direction_input(RGB_BACKLIGHT_GP); 622 } 623 #endif 624 625 static iomux_v3_cfg_t const init_pads[] = { 626 /* SGTL5000 sys_mclk */ 627 NEW_PAD_CTRL(MX6_PAD_GPIO_0__CCM_CLKO1, OUTPUT_40OHM), 628 629 /* J5 - Camera MCLK */ 630 NEW_PAD_CTRL(MX6_PAD_GPIO_3__CCM_CLKO2, OUTPUT_40OHM), 631 632 /* wl1271 pads on nitrogen6x */ 633 /* WL12XX_WL_IRQ_GP */ 634 NEW_PAD_CTRL(MX6_PAD_NANDF_CS1__GPIO6_IO14, WEAK_PULLDOWN), 635 /* WL12XX_WL_ENABLE_GP */ 636 NEW_PAD_CTRL(MX6_PAD_NANDF_CS2__GPIO6_IO15, OUTPUT_40OHM), 637 /* WL12XX_BT_ENABLE_GP */ 638 NEW_PAD_CTRL(MX6_PAD_NANDF_CS3__GPIO6_IO16, OUTPUT_40OHM), 639 /* USB otg power */ 640 NEW_PAD_CTRL(MX6_PAD_EIM_D22__GPIO3_IO22, OUTPUT_40OHM), 641 NEW_PAD_CTRL(MX6_PAD_NANDF_D5__GPIO2_IO05, OUTPUT_40OHM), 642 NEW_PAD_CTRL(MX6_PAD_NANDF_WP_B__GPIO6_IO09, OUTPUT_40OHM), 643 NEW_PAD_CTRL(MX6_PAD_GPIO_8__GPIO1_IO08, OUTPUT_40OHM), 644 NEW_PAD_CTRL(MX6_PAD_GPIO_6__GPIO1_IO06, OUTPUT_40OHM), 645 }; 646 647 #define WL12XX_WL_IRQ_GP IMX_GPIO_NR(6, 14) 648 649 static unsigned gpios_out_low[] = { 650 /* Disable wl1271 */ 651 IMX_GPIO_NR(6, 15), /* disable wireless */ 652 IMX_GPIO_NR(6, 16), /* disable bluetooth */ 653 IMX_GPIO_NR(3, 22), /* disable USB otg power */ 654 IMX_GPIO_NR(2, 5), /* ov5640 mipi camera reset */ 655 IMX_GPIO_NR(1, 8), /* ov5642 reset */ 656 }; 657 658 static unsigned gpios_out_high[] = { 659 IMX_GPIO_NR(1, 6), /* ov5642 powerdown */ 660 IMX_GPIO_NR(6, 9), /* ov5640 mipi camera power down */ 661 }; 662 663 static void set_gpios(unsigned *p, int cnt, int val) 664 { 665 int i; 666 667 for (i = 0; i < cnt; i++) 668 gpio_direction_output(*p++, val); 669 } 670 671 int board_early_init_f(void) 672 { 673 setup_iomux_uart(); 674 675 set_gpios(gpios_out_high, ARRAY_SIZE(gpios_out_high), 1); 676 set_gpios(gpios_out_low, ARRAY_SIZE(gpios_out_low), 0); 677 gpio_direction_input(WL12XX_WL_IRQ_GP); 678 679 imx_iomux_v3_setup_multiple_pads(wl12xx_pads, ARRAY_SIZE(wl12xx_pads)); 680 imx_iomux_v3_setup_multiple_pads(init_pads, ARRAY_SIZE(init_pads)); 681 setup_buttons(); 682 683 #if defined(CONFIG_VIDEO_IPUV3) 684 setup_display(); 685 #endif 686 return 0; 687 } 688 689 /* 690 * Do not overwrite the console 691 * Use always serial for U-Boot console 692 */ 693 int overwrite_console(void) 694 { 695 return 1; 696 } 697 698 int board_init(void) 699 { 700 struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR; 701 702 clrsetbits_le32(&iomuxc_regs->gpr[1], 703 IOMUXC_GPR1_OTG_ID_MASK, 704 IOMUXC_GPR1_OTG_ID_GPIO1); 705 706 imx_iomux_v3_setup_multiple_pads(misc_pads, ARRAY_SIZE(misc_pads)); 707 708 /* address of boot parameters */ 709 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; 710 711 #ifdef CONFIG_MXC_SPI 712 setup_spi(); 713 #endif 714 imx_iomux_v3_setup_multiple_pads( 715 usdhc2_pads, ARRAY_SIZE(usdhc2_pads)); 716 setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0); 717 setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1); 718 setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2); 719 720 #ifdef CONFIG_CMD_SATA 721 setup_sata(); 722 #endif 723 724 return 0; 725 } 726 727 int checkboard(void) 728 { 729 if (gpio_get_value(WL12XX_WL_IRQ_GP)) 730 puts("Board: Nitrogen6X\n"); 731 else 732 puts("Board: SABRE Lite\n"); 733 734 return 0; 735 } 736 737 struct button_key { 738 char const *name; 739 unsigned gpnum; 740 char ident; 741 }; 742 743 static struct button_key const buttons[] = { 744 {"back", IMX_GPIO_NR(2, 2), 'B'}, 745 {"home", IMX_GPIO_NR(2, 4), 'H'}, 746 {"menu", IMX_GPIO_NR(2, 1), 'M'}, 747 {"search", IMX_GPIO_NR(2, 3), 'S'}, 748 {"volup", IMX_GPIO_NR(7, 13), 'V'}, 749 {"voldown", IMX_GPIO_NR(4, 5), 'v'}, 750 }; 751 752 /* 753 * generate a null-terminated string containing the buttons pressed 754 * returns number of keys pressed 755 */ 756 static int read_keys(char *buf) 757 { 758 int i, numpressed = 0; 759 for (i = 0; i < ARRAY_SIZE(buttons); i++) { 760 if (!gpio_get_value(buttons[i].gpnum)) 761 buf[numpressed++] = buttons[i].ident; 762 } 763 buf[numpressed] = '\0'; 764 return numpressed; 765 } 766 767 static int do_kbd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 768 { 769 char envvalue[ARRAY_SIZE(buttons)+1]; 770 int numpressed = read_keys(envvalue); 771 setenv("keybd", envvalue); 772 return numpressed == 0; 773 } 774 775 U_BOOT_CMD( 776 kbd, 1, 1, do_kbd, 777 "Tests for keypresses, sets 'keybd' environment variable", 778 "Returns 0 (true) to shell if key is pressed." 779 ); 780 781 #ifdef CONFIG_PREBOOT 782 static char const kbd_magic_prefix[] = "key_magic"; 783 static char const kbd_command_prefix[] = "key_cmd"; 784 785 static void preboot_keys(void) 786 { 787 int numpressed; 788 char keypress[ARRAY_SIZE(buttons)+1]; 789 numpressed = read_keys(keypress); 790 if (numpressed) { 791 char *kbd_magic_keys = getenv("magic_keys"); 792 char *suffix; 793 /* 794 * loop over all magic keys 795 */ 796 for (suffix = kbd_magic_keys; *suffix; ++suffix) { 797 char *keys; 798 char magic[sizeof(kbd_magic_prefix) + 1]; 799 sprintf(magic, "%s%c", kbd_magic_prefix, *suffix); 800 keys = getenv(magic); 801 if (keys) { 802 if (!strcmp(keys, keypress)) 803 break; 804 } 805 } 806 if (*suffix) { 807 char cmd_name[sizeof(kbd_command_prefix) + 1]; 808 char *cmd; 809 sprintf(cmd_name, "%s%c", kbd_command_prefix, *suffix); 810 cmd = getenv(cmd_name); 811 if (cmd) { 812 setenv("preboot", cmd); 813 return; 814 } 815 } 816 } 817 } 818 #endif 819 820 #ifdef CONFIG_CMD_BMODE 821 static const struct boot_mode board_boot_modes[] = { 822 /* 4 bit bus width */ 823 {"mmc0", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)}, 824 {"mmc1", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)}, 825 {NULL, 0}, 826 }; 827 #endif 828 829 int misc_init_r(void) 830 { 831 #ifdef CONFIG_PREBOOT 832 preboot_keys(); 833 #endif 834 835 #ifdef CONFIG_CMD_BMODE 836 add_board_boot_modes(board_boot_modes); 837 #endif 838 return 0; 839 } 840