1 /* 2 * Copyright (C) 2016 Toradex AG 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <asm/arch/clock.h> 8 #include <asm/arch/crm_regs.h> 9 #include <asm/arch/imx-regs.h> 10 #include <asm/arch/mx7-pins.h> 11 #include <asm/arch/sys_proto.h> 12 #include <asm/gpio.h> 13 #include <asm/mach-imx/boot_mode.h> 14 #include <asm/mach-imx/iomux-v3.h> 15 #include <asm/io.h> 16 #include <common.h> 17 #include <dm.h> 18 #include <dm/platform_data/serial_mxc.h> 19 #include <fdt_support.h> 20 #include <fsl_esdhc.h> 21 #include <jffs2/load_kernel.h> 22 #include <linux/sizes.h> 23 #include <mmc.h> 24 #include <miiphy.h> 25 #include <mtd_node.h> 26 #include <netdev.h> 27 #include <power/pmic.h> 28 #include <power/rn5t567_pmic.h> 29 #include <usb.h> 30 #include <usb/ehci-ci.h> 31 #include "../common/tdx-common.h" 32 33 DECLARE_GLOBAL_DATA_PTR; 34 35 #define UART_PAD_CTRL (PAD_CTL_DSE_3P3V_49OHM | \ 36 PAD_CTL_PUS_PU100KOHM | PAD_CTL_HYS) 37 38 #define USDHC_PAD_CTRL (PAD_CTL_DSE_3P3V_32OHM | PAD_CTL_SRE_SLOW | \ 39 PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PUS_PU47KOHM) 40 41 #define ENET_PAD_CTRL (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_49OHM) 42 #define ENET_PAD_CTRL_MII (PAD_CTL_DSE_3P3V_32OHM) 43 44 #define ENET_RX_PAD_CTRL (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_49OHM) 45 46 #define LCD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_PU100KOHM | \ 47 PAD_CTL_DSE_3P3V_49OHM) 48 49 #define NAND_PAD_CTRL (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_SRE_SLOW | PAD_CTL_HYS) 50 51 #define NAND_PAD_READY0_CTRL (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_PUS_PU5KOHM) 52 53 #define USB_CDET_GPIO IMX_GPIO_NR(7, 14) 54 55 int dram_init(void) 56 { 57 gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE); 58 59 return 0; 60 } 61 62 static iomux_v3_cfg_t const uart1_pads[] = { 63 MX7D_PAD_UART1_RX_DATA__UART1_DTE_TX | MUX_PAD_CTRL(UART_PAD_CTRL), 64 MX7D_PAD_UART1_TX_DATA__UART1_DTE_RX | MUX_PAD_CTRL(UART_PAD_CTRL), 65 MX7D_PAD_SAI2_TX_BCLK__UART1_DTE_CTS | MUX_PAD_CTRL(UART_PAD_CTRL), 66 MX7D_PAD_SAI2_TX_SYNC__UART1_DTE_RTS | MUX_PAD_CTRL(UART_PAD_CTRL), 67 }; 68 69 static iomux_v3_cfg_t const usdhc1_pads[] = { 70 MX7D_PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 71 MX7D_PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 72 MX7D_PAD_SD1_DATA0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 73 MX7D_PAD_SD1_DATA1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 74 MX7D_PAD_SD1_DATA2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 75 MX7D_PAD_SD1_DATA3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 76 77 MX7D_PAD_GPIO1_IO00__GPIO1_IO0 | MUX_PAD_CTRL(NO_PAD_CTRL), 78 }; 79 80 #ifdef CONFIG_USB_EHCI_MX7 81 static iomux_v3_cfg_t const usb_cdet_pads[] = { 82 MX7D_PAD_ENET1_CRS__GPIO7_IO14 | MUX_PAD_CTRL(NO_PAD_CTRL), 83 }; 84 #endif 85 86 #ifdef CONFIG_NAND_MXS 87 static iomux_v3_cfg_t const gpmi_pads[] = { 88 MX7D_PAD_SD3_DATA0__NAND_DATA00 | MUX_PAD_CTRL(NAND_PAD_CTRL), 89 MX7D_PAD_SD3_DATA1__NAND_DATA01 | MUX_PAD_CTRL(NAND_PAD_CTRL), 90 MX7D_PAD_SD3_DATA2__NAND_DATA02 | MUX_PAD_CTRL(NAND_PAD_CTRL), 91 MX7D_PAD_SD3_DATA3__NAND_DATA03 | MUX_PAD_CTRL(NAND_PAD_CTRL), 92 MX7D_PAD_SD3_DATA4__NAND_DATA04 | MUX_PAD_CTRL(NAND_PAD_CTRL), 93 MX7D_PAD_SD3_DATA5__NAND_DATA05 | MUX_PAD_CTRL(NAND_PAD_CTRL), 94 MX7D_PAD_SD3_DATA6__NAND_DATA06 | MUX_PAD_CTRL(NAND_PAD_CTRL), 95 MX7D_PAD_SD3_DATA7__NAND_DATA07 | MUX_PAD_CTRL(NAND_PAD_CTRL), 96 MX7D_PAD_SD3_CLK__NAND_CLE | MUX_PAD_CTRL(NAND_PAD_CTRL), 97 MX7D_PAD_SD3_CMD__NAND_ALE | MUX_PAD_CTRL(NAND_PAD_CTRL), 98 MX7D_PAD_SD3_STROBE__NAND_RE_B | MUX_PAD_CTRL(NAND_PAD_CTRL), 99 MX7D_PAD_SD3_RESET_B__NAND_WE_B | MUX_PAD_CTRL(NAND_PAD_CTRL), 100 MX7D_PAD_SAI1_RX_DATA__NAND_CE1_B | MUX_PAD_CTRL(NAND_PAD_CTRL), 101 MX7D_PAD_SAI1_TX_BCLK__NAND_CE0_B | MUX_PAD_CTRL(NAND_PAD_CTRL), 102 MX7D_PAD_SAI1_TX_DATA__NAND_READY_B | MUX_PAD_CTRL(NAND_PAD_READY0_CTRL), 103 }; 104 105 static void setup_gpmi_nand(void) 106 { 107 imx_iomux_v3_setup_multiple_pads(gpmi_pads, ARRAY_SIZE(gpmi_pads)); 108 109 /* NAND_USDHC_BUS_CLK is set in rom */ 110 set_clk_nand(); 111 } 112 #endif 113 114 #ifdef CONFIG_VIDEO_MXS 115 static iomux_v3_cfg_t const lcd_pads[] = { 116 MX7D_PAD_LCD_CLK__LCD_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL), 117 MX7D_PAD_LCD_ENABLE__LCD_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL), 118 MX7D_PAD_LCD_HSYNC__LCD_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL), 119 MX7D_PAD_LCD_VSYNC__LCD_VSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL), 120 MX7D_PAD_LCD_DATA00__LCD_DATA0 | MUX_PAD_CTRL(LCD_PAD_CTRL), 121 MX7D_PAD_LCD_DATA01__LCD_DATA1 | MUX_PAD_CTRL(LCD_PAD_CTRL), 122 MX7D_PAD_LCD_DATA02__LCD_DATA2 | MUX_PAD_CTRL(LCD_PAD_CTRL), 123 MX7D_PAD_LCD_DATA03__LCD_DATA3 | MUX_PAD_CTRL(LCD_PAD_CTRL), 124 MX7D_PAD_LCD_DATA04__LCD_DATA4 | MUX_PAD_CTRL(LCD_PAD_CTRL), 125 MX7D_PAD_LCD_DATA05__LCD_DATA5 | MUX_PAD_CTRL(LCD_PAD_CTRL), 126 MX7D_PAD_LCD_DATA06__LCD_DATA6 | MUX_PAD_CTRL(LCD_PAD_CTRL), 127 MX7D_PAD_LCD_DATA07__LCD_DATA7 | MUX_PAD_CTRL(LCD_PAD_CTRL), 128 MX7D_PAD_LCD_DATA08__LCD_DATA8 | MUX_PAD_CTRL(LCD_PAD_CTRL), 129 MX7D_PAD_LCD_DATA09__LCD_DATA9 | MUX_PAD_CTRL(LCD_PAD_CTRL), 130 MX7D_PAD_LCD_DATA10__LCD_DATA10 | MUX_PAD_CTRL(LCD_PAD_CTRL), 131 MX7D_PAD_LCD_DATA11__LCD_DATA11 | MUX_PAD_CTRL(LCD_PAD_CTRL), 132 MX7D_PAD_LCD_DATA12__LCD_DATA12 | MUX_PAD_CTRL(LCD_PAD_CTRL), 133 MX7D_PAD_LCD_DATA13__LCD_DATA13 | MUX_PAD_CTRL(LCD_PAD_CTRL), 134 MX7D_PAD_LCD_DATA14__LCD_DATA14 | MUX_PAD_CTRL(LCD_PAD_CTRL), 135 MX7D_PAD_LCD_DATA15__LCD_DATA15 | MUX_PAD_CTRL(LCD_PAD_CTRL), 136 MX7D_PAD_LCD_DATA16__LCD_DATA16 | MUX_PAD_CTRL(LCD_PAD_CTRL), 137 MX7D_PAD_LCD_DATA17__LCD_DATA17 | MUX_PAD_CTRL(LCD_PAD_CTRL), 138 }; 139 140 static iomux_v3_cfg_t const backlight_pads[] = { 141 /* Backlight On */ 142 MX7D_PAD_SD1_WP__GPIO5_IO1 | MUX_PAD_CTRL(NO_PAD_CTRL), 143 /* Backlight PWM<A> (multiplexed pin) */ 144 MX7D_PAD_GPIO1_IO08__GPIO1_IO8 | MUX_PAD_CTRL(NO_PAD_CTRL), 145 MX7D_PAD_ECSPI2_MOSI__GPIO4_IO21 | MUX_PAD_CTRL(NO_PAD_CTRL), 146 }; 147 148 #define GPIO_BL_ON IMX_GPIO_NR(5, 1) 149 #define GPIO_PWM_A IMX_GPIO_NR(1, 8) 150 151 static int setup_lcd(void) 152 { 153 imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads)); 154 155 imx_iomux_v3_setup_multiple_pads(backlight_pads, ARRAY_SIZE(backlight_pads)); 156 157 /* Set BL_ON */ 158 gpio_request(GPIO_BL_ON, "BL_ON"); 159 gpio_direction_output(GPIO_BL_ON, 1); 160 161 /* Set PWM<A> to full brightness (assuming inversed polarity) */ 162 gpio_request(GPIO_PWM_A, "PWM<A>"); 163 gpio_direction_output(GPIO_PWM_A, 0); 164 165 return 0; 166 } 167 #endif 168 169 #ifdef CONFIG_FEC_MXC 170 static iomux_v3_cfg_t const fec1_pads[] = { 171 #ifndef CONFIG_COLIBRI_IMX7_EXT_PHYCLK 172 MX7D_PAD_GPIO1_IO12__CCM_ENET_REF_CLK1 | MUX_PAD_CTRL(ENET_PAD_CTRL) | MUX_MODE_SION, 173 #else 174 MX7D_PAD_GPIO1_IO12__CCM_ENET_REF_CLK1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 175 #endif 176 MX7D_PAD_SD2_CD_B__ENET1_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL_MII), 177 MX7D_PAD_SD2_WP__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL_MII), 178 MX7D_PAD_ENET1_RGMII_RD0__ENET1_RGMII_RD0 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL), 179 MX7D_PAD_ENET1_RGMII_RD1__ENET1_RGMII_RD1 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL), 180 MX7D_PAD_ENET1_RGMII_RXC__ENET1_RX_ER | MUX_PAD_CTRL(ENET_RX_PAD_CTRL), 181 MX7D_PAD_ENET1_RGMII_RX_CTL__ENET1_RGMII_RX_CTL | MUX_PAD_CTRL(ENET_RX_PAD_CTRL), 182 MX7D_PAD_ENET1_RGMII_TD0__ENET1_RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 183 MX7D_PAD_ENET1_RGMII_TD1__ENET1_RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 184 MX7D_PAD_ENET1_RGMII_TX_CTL__ENET1_RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), 185 }; 186 187 static void setup_iomux_fec(void) 188 { 189 imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads)); 190 } 191 #endif 192 193 static void setup_iomux_uart(void) 194 { 195 imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); 196 } 197 198 #ifdef CONFIG_FSL_ESDHC 199 200 #define USDHC1_CD_GPIO IMX_GPIO_NR(1, 0) 201 202 static struct fsl_esdhc_cfg usdhc_cfg[] = { 203 {USDHC1_BASE_ADDR, 0, 4}, 204 }; 205 206 int board_mmc_getcd(struct mmc *mmc) 207 { 208 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; 209 int ret = 0; 210 211 switch (cfg->esdhc_base) { 212 case USDHC1_BASE_ADDR: 213 ret = !gpio_get_value(USDHC1_CD_GPIO); 214 break; 215 } 216 217 return ret; 218 } 219 220 int board_mmc_init(bd_t *bis) 221 { 222 int i, ret; 223 /* USDHC1 is mmc0 */ 224 for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) { 225 switch (i) { 226 case 0: 227 imx_iomux_v3_setup_multiple_pads( 228 usdhc1_pads, ARRAY_SIZE(usdhc1_pads)); 229 gpio_request(USDHC1_CD_GPIO, "usdhc1_cd"); 230 gpio_direction_input(USDHC1_CD_GPIO); 231 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); 232 break; 233 default: 234 printf("Warning: you configured more USDHC controllers" 235 "(%d) than supported by the board\n", i + 1); 236 return -EINVAL; 237 } 238 239 ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]); 240 if (ret) 241 return ret; 242 } 243 244 return 0; 245 } 246 #endif 247 248 #ifdef CONFIG_FEC_MXC 249 int board_eth_init(bd_t *bis) 250 { 251 int ret; 252 253 setup_iomux_fec(); 254 255 ret = fecmxc_initialize_multi(bis, 0, 256 CONFIG_FEC_MXC_PHYADDR, IMX_FEC_BASE); 257 if (ret) 258 printf("FEC1 MXC: %s:failed\n", __func__); 259 260 return ret; 261 } 262 263 static int setup_fec(void) 264 { 265 struct iomuxc_gpr_base_regs *const iomuxc_gpr_regs 266 = (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR; 267 268 #ifndef CONFIG_COLIBRI_IMX7_EXT_PHYCLK 269 /* 270 * Use 50M anatop REF_CLK1 for ENET1, clear gpr1[13], set gpr1[17] 271 * and output it on the pin 272 */ 273 clrsetbits_le32(&iomuxc_gpr_regs->gpr[1], 274 IOMUXC_GPR_GPR1_GPR_ENET1_TX_CLK_SEL_MASK, 275 IOMUXC_GPR_GPR1_GPR_ENET1_CLK_DIR_MASK); 276 #else 277 /* Use 50M external CLK for ENET1, set gpr1[13], clear gpr1[17] */ 278 clrsetbits_le32(&iomuxc_gpr_regs->gpr[1], 279 IOMUXC_GPR_GPR1_GPR_ENET1_CLK_DIR_MASK, 280 IOMUXC_GPR_GPR1_GPR_ENET1_TX_CLK_SEL_MASK); 281 #endif 282 283 return set_clk_enet(ENET_50MHZ); 284 } 285 286 int board_phy_config(struct phy_device *phydev) 287 { 288 if (phydev->drv->config) 289 phydev->drv->config(phydev); 290 return 0; 291 } 292 #endif 293 294 int board_early_init_f(void) 295 { 296 setup_iomux_uart(); 297 298 return 0; 299 } 300 301 int board_init(void) 302 { 303 /* address of boot parameters */ 304 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; 305 306 #ifdef CONFIG_FEC_MXC 307 setup_fec(); 308 #endif 309 310 #ifdef CONFIG_NAND_MXS 311 setup_gpmi_nand(); 312 #endif 313 314 #ifdef CONFIG_VIDEO_MXS 315 setup_lcd(); 316 #endif 317 318 #ifdef CONFIG_USB_EHCI_MX7 319 imx_iomux_v3_setup_multiple_pads(usb_cdet_pads, ARRAY_SIZE(usb_cdet_pads)); 320 gpio_request(USB_CDET_GPIO, "usb-cdet-gpio"); 321 #endif 322 323 return 0; 324 } 325 326 #ifdef CONFIG_CMD_BMODE 327 static const struct boot_mode board_boot_modes[] = { 328 /* 4 bit bus width */ 329 {"nand", MAKE_CFGVAL(0x40, 0x34, 0x00, 0x00)}, 330 {"sd1", MAKE_CFGVAL(0x10, 0x10, 0x00, 0x00)}, 331 {NULL, 0}, 332 }; 333 #endif 334 335 int board_late_init(void) 336 { 337 #ifdef CONFIG_CMD_BMODE 338 add_board_boot_modes(board_boot_modes); 339 #endif 340 341 return 0; 342 } 343 344 #ifdef CONFIG_DM_PMIC 345 int power_init_board(void) 346 { 347 struct udevice *dev; 348 int reg, ver; 349 int ret; 350 351 352 ret = pmic_get("rn5t567", &dev); 353 if (ret) 354 return ret; 355 ver = pmic_reg_read(dev, RN5T567_LSIVER); 356 reg = pmic_reg_read(dev, RN5T567_OTPVER); 357 358 printf("PMIC: RN5T567 LSIVER=0x%02x OTPVER=0x%02x\n", ver, reg); 359 360 /* set judge and press timer of N_OE to minimal values */ 361 pmic_clrsetbits(dev, RN5T567_NOETIMSETCNT, 0x7, 0); 362 363 /* configure sleep slot for 3.3V Ethernet */ 364 reg = pmic_reg_read(dev, RN5T567_LDO1_SLOT); 365 reg = (reg & 0xf0) | reg >> 4; 366 pmic_reg_write(dev, RN5T567_LDO1_SLOT, reg); 367 368 /* disable DCDC2 discharge to avoid backfeeding through VFB2 */ 369 pmic_clrsetbits(dev, RN5T567_DC2CTL, 0x2, 0); 370 371 /* configure sleep slot for ARM rail */ 372 reg = pmic_reg_read(dev, RN5T567_DC2_SLOT); 373 reg = (reg & 0xf0) | reg >> 4; 374 pmic_reg_write(dev, RN5T567_DC2_SLOT, reg); 375 376 /* disable LDO2 discharge to avoid backfeeding from +V3.3_SD */ 377 pmic_clrsetbits(dev, RN5T567_LDODIS1, 0x2, 0); 378 379 return 0; 380 } 381 382 void reset_cpu(ulong addr) 383 { 384 struct udevice *dev; 385 386 pmic_get("rn5t567", &dev); 387 388 /* Use PMIC to reset, set REPWRTIM to 0 and REPWRON to 1 */ 389 pmic_reg_write(dev, RN5T567_REPCNT, 0x1); 390 pmic_reg_write(dev, RN5T567_SLPCNT, 0x1); 391 392 /* 393 * Re-power factor detection on PMIC side is not instant. 1ms 394 * proved to be enough time until reset takes effect. 395 */ 396 mdelay(1); 397 } 398 #endif 399 400 int checkboard(void) 401 { 402 printf("Model: Toradex Colibri iMX7%c\n", 403 is_cpu_type(MXC_CPU_MX7D) ? 'D' : 'S'); 404 405 return 0; 406 } 407 408 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) 409 int ft_board_setup(void *blob, bd_t *bd) 410 { 411 #if defined(CONFIG_FDT_FIXUP_PARTITIONS) 412 static struct node_info nodes[] = { 413 { "fsl,imx7d-gpmi-nand", MTD_DEV_TYPE_NAND, }, /* NAND flash */ 414 }; 415 416 /* Update partition nodes using info from mtdparts env var */ 417 puts(" Updating MTD partitions...\n"); 418 fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes)); 419 #endif 420 421 return ft_common_board_setup(blob, bd); 422 } 423 #endif 424 425 #ifdef CONFIG_USB_EHCI_MX7 426 static iomux_v3_cfg_t const usb_otg2_pads[] = { 427 MX7D_PAD_UART3_CTS_B__USB_OTG2_PWR | MUX_PAD_CTRL(NO_PAD_CTRL), 428 }; 429 430 int board_ehci_hcd_init(int port) 431 { 432 switch (port) { 433 case 0: 434 break; 435 case 1: 436 if (is_cpu_type(MXC_CPU_MX7S)) 437 return -ENODEV; 438 439 imx_iomux_v3_setup_multiple_pads(usb_otg2_pads, 440 ARRAY_SIZE(usb_otg2_pads)); 441 break; 442 default: 443 return -EINVAL; 444 } 445 return 0; 446 } 447 448 int board_usb_phy_mode(int port) 449 { 450 switch (port) { 451 case 0: 452 if (gpio_get_value(USB_CDET_GPIO)) 453 return USB_INIT_DEVICE; 454 else 455 return USB_INIT_HOST; 456 case 1: 457 default: 458 return USB_INIT_HOST; 459 } 460 } 461 #endif 462