1 /* 2 * Copyright (C) 2013 Freescale Semiconductor, Inc. 3 * Copyright (C) 2014 O.S. Systems Software LTDA. 4 * 5 * Author: Fabio Estevam <fabio.estevam@freescale.com> 6 * 7 * SPDX-License-Identifier: GPL-2.0+ 8 */ 9 10 #include <asm/arch/clock.h> 11 #include <asm/arch/crm_regs.h> 12 #include <asm/arch/iomux.h> 13 #include <asm/arch/imx-regs.h> 14 #include <asm/arch/mx6-pins.h> 15 #include <asm/arch/mxc_hdmi.h> 16 #include <asm/arch/sys_proto.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/boot_mode.h> 21 #include <asm/imx-common/video.h> 22 #include <asm/io.h> 23 #include <linux/sizes.h> 24 #include <common.h> 25 #include <fsl_esdhc.h> 26 #include <mmc.h> 27 #include <miiphy.h> 28 #include <netdev.h> 29 #include <phy.h> 30 #include <input.h> 31 #include <i2c.h> 32 33 DECLARE_GLOBAL_DATA_PTR; 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 I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 47 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ 48 PAD_CTL_ODE | PAD_CTL_SRE_FAST) 49 50 #define USDHC1_CD_GPIO IMX_GPIO_NR(1, 2) 51 #define USDHC3_CD_GPIO IMX_GPIO_NR(3, 9) 52 #define ETH_PHY_RESET IMX_GPIO_NR(3, 29) 53 #define REV_DETECTION IMX_GPIO_NR(2, 28) 54 55 int dram_init(void) 56 { 57 gd->ram_size = imx_ddr_size(); 58 59 return 0; 60 } 61 62 static iomux_v3_cfg_t const uart1_pads[] = { 63 IOMUX_PADS(PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)), 64 IOMUX_PADS(PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)), 65 }; 66 67 static iomux_v3_cfg_t const usdhc1_pads[] = { 68 IOMUX_PADS(PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)), 69 IOMUX_PADS(PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)), 70 IOMUX_PADS(PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), 71 IOMUX_PADS(PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), 72 IOMUX_PADS(PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), 73 IOMUX_PADS(PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), 74 /* Carrier MicroSD Card Detect */ 75 IOMUX_PADS(PAD_GPIO_2__GPIO1_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL)), 76 }; 77 78 static iomux_v3_cfg_t const usdhc3_pads[] = { 79 IOMUX_PADS(PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)), 80 IOMUX_PADS(PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)), 81 IOMUX_PADS(PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), 82 IOMUX_PADS(PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), 83 IOMUX_PADS(PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), 84 IOMUX_PADS(PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), 85 /* SOM MicroSD Card Detect */ 86 IOMUX_PADS(PAD_EIM_DA9__GPIO3_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL)), 87 }; 88 89 static iomux_v3_cfg_t const enet_pads[] = { 90 IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL)), 91 IOMUX_PADS(PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL)), 92 IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL)), 93 IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)), 94 IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)), 95 IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)), 96 IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)), 97 IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)), 98 IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL)), 99 IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL)), 100 IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)), 101 IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)), 102 IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)), 103 IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)), 104 IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)), 105 /* AR8031 PHY Reset */ 106 IOMUX_PADS(PAD_EIM_D29__GPIO3_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL)), 107 }; 108 109 static iomux_v3_cfg_t const rev_detection_pad[] = { 110 IOMUX_PADS(PAD_EIM_EB0__GPIO2_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL)), 111 }; 112 113 static void setup_iomux_uart(void) 114 { 115 SETUP_IOMUX_PADS(uart1_pads); 116 } 117 118 static void setup_iomux_enet(void) 119 { 120 SETUP_IOMUX_PADS(enet_pads); 121 122 /* Reset AR8031 PHY */ 123 gpio_direction_output(ETH_PHY_RESET, 0); 124 mdelay(10); 125 gpio_set_value(ETH_PHY_RESET, 1); 126 udelay(100); 127 } 128 129 static struct fsl_esdhc_cfg usdhc_cfg[2] = { 130 {USDHC3_BASE_ADDR}, 131 {USDHC1_BASE_ADDR}, 132 }; 133 134 int board_mmc_getcd(struct mmc *mmc) 135 { 136 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; 137 int ret = 0; 138 139 switch (cfg->esdhc_base) { 140 case USDHC1_BASE_ADDR: 141 ret = !gpio_get_value(USDHC1_CD_GPIO); 142 break; 143 case USDHC3_BASE_ADDR: 144 ret = !gpio_get_value(USDHC3_CD_GPIO); 145 break; 146 } 147 148 return ret; 149 } 150 151 int board_mmc_init(bd_t *bis) 152 { 153 int ret; 154 u32 index = 0; 155 156 /* 157 * Following map is done: 158 * (U-Boot device node) (Physical Port) 159 * mmc0 SOM MicroSD 160 * mmc1 Carrier board MicroSD 161 */ 162 for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) { 163 switch (index) { 164 case 0: 165 SETUP_IOMUX_PADS(usdhc3_pads); 166 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); 167 usdhc_cfg[0].max_bus_width = 4; 168 gpio_direction_input(USDHC3_CD_GPIO); 169 break; 170 case 1: 171 SETUP_IOMUX_PADS(usdhc1_pads); 172 usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); 173 usdhc_cfg[1].max_bus_width = 4; 174 gpio_direction_input(USDHC1_CD_GPIO); 175 break; 176 default: 177 printf("Warning: you configured more USDHC controllers" 178 "(%d) then supported by the board (%d)\n", 179 index + 1, CONFIG_SYS_FSL_USDHC_NUM); 180 return -EINVAL; 181 } 182 183 ret = fsl_esdhc_initialize(bis, &usdhc_cfg[index]); 184 if (ret) 185 return ret; 186 } 187 188 return 0; 189 } 190 191 #if defined(CONFIG_VIDEO_IPUV3) 192 struct i2c_pads_info mx6q_i2c2_pad_info = { 193 .scl = { 194 .i2c_mode = MX6Q_PAD_KEY_COL3__I2C2_SCL 195 | MUX_PAD_CTRL(I2C_PAD_CTRL), 196 .gpio_mode = MX6Q_PAD_KEY_COL3__GPIO4_IO12 197 | MUX_PAD_CTRL(I2C_PAD_CTRL), 198 .gp = IMX_GPIO_NR(4, 12) 199 }, 200 .sda = { 201 .i2c_mode = MX6Q_PAD_KEY_ROW3__I2C2_SDA 202 | MUX_PAD_CTRL(I2C_PAD_CTRL), 203 .gpio_mode = MX6Q_PAD_KEY_ROW3__GPIO4_IO13 204 | MUX_PAD_CTRL(I2C_PAD_CTRL), 205 .gp = IMX_GPIO_NR(4, 13) 206 } 207 }; 208 209 struct i2c_pads_info mx6dl_i2c2_pad_info = { 210 .scl = { 211 .i2c_mode = MX6DL_PAD_KEY_COL3__I2C2_SCL 212 | MUX_PAD_CTRL(I2C_PAD_CTRL), 213 .gpio_mode = MX6DL_PAD_KEY_COL3__GPIO4_IO12 214 | MUX_PAD_CTRL(I2C_PAD_CTRL), 215 .gp = IMX_GPIO_NR(4, 12) 216 }, 217 .sda = { 218 .i2c_mode = MX6DL_PAD_KEY_ROW3__I2C2_SDA 219 | MUX_PAD_CTRL(I2C_PAD_CTRL), 220 .gpio_mode = MX6DL_PAD_KEY_ROW3__GPIO4_IO13 221 | MUX_PAD_CTRL(I2C_PAD_CTRL), 222 .gp = IMX_GPIO_NR(4, 13) 223 } 224 }; 225 226 static iomux_v3_cfg_t const fwadapt_7wvga_pads[] = { 227 IOMUX_PADS(PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK), 228 IOMUX_PADS(PAD_DI0_PIN2__IPU1_DI0_PIN02), /* HSync */ 229 IOMUX_PADS(PAD_DI0_PIN3__IPU1_DI0_PIN03), /* VSync */ 230 IOMUX_PADS(PAD_DI0_PIN4__IPU1_DI0_PIN04 | MUX_PAD_CTRL(PAD_CTL_DSE_120ohm)), /* Contrast */ 231 IOMUX_PADS(PAD_DI0_PIN15__IPU1_DI0_PIN15), /* DISP0_DRDY */ 232 IOMUX_PADS(PAD_DISP0_DAT0__IPU1_DISP0_DATA00), 233 IOMUX_PADS(PAD_DISP0_DAT1__IPU1_DISP0_DATA01), 234 IOMUX_PADS(PAD_DISP0_DAT2__IPU1_DISP0_DATA02), 235 IOMUX_PADS(PAD_DISP0_DAT3__IPU1_DISP0_DATA03), 236 IOMUX_PADS(PAD_DISP0_DAT4__IPU1_DISP0_DATA04), 237 IOMUX_PADS(PAD_DISP0_DAT5__IPU1_DISP0_DATA05), 238 IOMUX_PADS(PAD_DISP0_DAT6__IPU1_DISP0_DATA06), 239 IOMUX_PADS(PAD_DISP0_DAT7__IPU1_DISP0_DATA07), 240 IOMUX_PADS(PAD_DISP0_DAT8__IPU1_DISP0_DATA08), 241 IOMUX_PADS(PAD_DISP0_DAT9__IPU1_DISP0_DATA09), 242 IOMUX_PADS(PAD_DISP0_DAT10__IPU1_DISP0_DATA10), 243 IOMUX_PADS(PAD_DISP0_DAT11__IPU1_DISP0_DATA11), 244 IOMUX_PADS(PAD_DISP0_DAT12__IPU1_DISP0_DATA12), 245 IOMUX_PADS(PAD_DISP0_DAT13__IPU1_DISP0_DATA13), 246 IOMUX_PADS(PAD_DISP0_DAT14__IPU1_DISP0_DATA14), 247 IOMUX_PADS(PAD_DISP0_DAT15__IPU1_DISP0_DATA15), 248 IOMUX_PADS(PAD_DISP0_DAT16__IPU1_DISP0_DATA16), 249 IOMUX_PADS(PAD_DISP0_DAT17__IPU1_DISP0_DATA17), 250 IOMUX_PADS(PAD_SD4_DAT2__GPIO2_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL)), /* DISP0_BKLEN */ 251 IOMUX_PADS(PAD_SD4_DAT3__GPIO2_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL)), /* DISP0_VDDEN */ 252 }; 253 254 static void do_enable_hdmi(struct display_info_t const *dev) 255 { 256 imx_enable_hdmi_phy(); 257 } 258 259 static int detect_i2c(struct display_info_t const *dev) 260 { 261 return (0 == i2c_set_bus_num(dev->bus)) && 262 (0 == i2c_probe(dev->addr)); 263 } 264 265 static void enable_fwadapt_7wvga(struct display_info_t const *dev) 266 { 267 SETUP_IOMUX_PADS(fwadapt_7wvga_pads); 268 269 gpio_direction_output(IMX_GPIO_NR(2, 10), 1); 270 gpio_direction_output(IMX_GPIO_NR(2, 11), 1); 271 } 272 273 struct display_info_t const displays[] = {{ 274 .bus = -1, 275 .addr = 0, 276 .pixfmt = IPU_PIX_FMT_RGB24, 277 .detect = detect_hdmi, 278 .enable = do_enable_hdmi, 279 .mode = { 280 .name = "HDMI", 281 .refresh = 60, 282 .xres = 1024, 283 .yres = 768, 284 .pixclock = 15385, 285 .left_margin = 220, 286 .right_margin = 40, 287 .upper_margin = 21, 288 .lower_margin = 7, 289 .hsync_len = 60, 290 .vsync_len = 10, 291 .sync = FB_SYNC_EXT, 292 .vmode = FB_VMODE_NONINTERLACED 293 } }, { 294 .bus = 1, 295 .addr = 0x10, 296 .pixfmt = IPU_PIX_FMT_RGB666, 297 .detect = detect_i2c, 298 .enable = enable_fwadapt_7wvga, 299 .mode = { 300 .name = "FWBADAPT-LCD-F07A-0102", 301 .refresh = 60, 302 .xres = 800, 303 .yres = 480, 304 .pixclock = 33260, 305 .left_margin = 128, 306 .right_margin = 128, 307 .upper_margin = 22, 308 .lower_margin = 22, 309 .hsync_len = 1, 310 .vsync_len = 1, 311 .sync = 0, 312 .vmode = FB_VMODE_NONINTERLACED 313 } } }; 314 size_t display_count = ARRAY_SIZE(displays); 315 316 static void setup_display(void) 317 { 318 struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; 319 int reg; 320 321 enable_ipu_clock(); 322 imx_setup_hdmi(); 323 324 reg = readl(&mxc_ccm->chsccdr); 325 reg |= (CHSCCDR_CLK_SEL_LDB_DI0 326 << MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET); 327 writel(reg, &mxc_ccm->chsccdr); 328 329 /* Disable LCD backlight */ 330 SETUP_IOMUX_PAD(PAD_DI0_PIN4__GPIO4_IO20); 331 gpio_direction_input(IMX_GPIO_NR(4, 20)); 332 } 333 #endif /* CONFIG_VIDEO_IPUV3 */ 334 335 int board_eth_init(bd_t *bis) 336 { 337 setup_iomux_enet(); 338 339 return cpu_eth_init(bis); 340 } 341 342 int board_early_init_f(void) 343 { 344 setup_iomux_uart(); 345 #if defined(CONFIG_VIDEO_IPUV3) 346 setup_display(); 347 #endif 348 return 0; 349 } 350 351 /* 352 * Do not overwrite the console 353 * Use always serial for U-Boot console 354 */ 355 int overwrite_console(void) 356 { 357 return 1; 358 } 359 360 #ifdef CONFIG_CMD_BMODE 361 static const struct boot_mode board_boot_modes[] = { 362 /* 4 bit bus width */ 363 {"mmc0", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)}, 364 {"mmc1", MAKE_CFGVAL(0x40, 0x20, 0x00, 0x00)}, 365 {NULL, 0}, 366 }; 367 #endif 368 369 static bool is_revc1(void) 370 { 371 SETUP_IOMUX_PADS(rev_detection_pad); 372 gpio_direction_input(REV_DETECTION); 373 374 if (gpio_get_value(REV_DETECTION)) 375 return true; 376 else 377 return false; 378 } 379 380 int board_late_init(void) 381 { 382 #ifdef CONFIG_CMD_BMODE 383 add_board_boot_modes(board_boot_modes); 384 #endif 385 386 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG 387 if (is_cpu_type(MXC_CPU_MX6Q) || is_cpu_type(MXC_CPU_MX6D)) 388 setenv("board_rev", "MX6Q"); 389 else 390 setenv("board_rev", "MX6DL"); 391 392 if (is_revc1()) 393 setenv("board_name", "C1"); 394 else 395 setenv("board_name", "B1"); 396 #endif 397 return 0; 398 } 399 400 int board_init(void) 401 { 402 /* address of boot parameters */ 403 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; 404 405 setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &mx6dl_i2c2_pad_info); 406 if (is_cpu_type(MXC_CPU_MX6Q) || is_cpu_type(MXC_CPU_MX6D)) 407 setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &mx6q_i2c2_pad_info); 408 else 409 setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &mx6dl_i2c2_pad_info); 410 411 return 0; 412 } 413 414 int checkboard(void) 415 { 416 if (is_revc1()) 417 puts("Board: Wandboard rev C1\n"); 418 else 419 puts("Board: Wandboard rev B1\n"); 420 421 return 0; 422 } 423