1 /* 2 * Copyright (C) 2012 Freescale Semiconductor, Inc. 3 * 4 * Author: Fabio Estevam <fabio.estevam@freescale.com> 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 9 #include <asm/arch/clock.h> 10 #include <asm/arch/imx-regs.h> 11 #include <asm/arch/iomux.h> 12 #include <asm/arch/mx6-pins.h> 13 #include <asm/errno.h> 14 #include <asm/gpio.h> 15 #include <asm/imx-common/iomux-v3.h> 16 #include <asm/imx-common/boot_mode.h> 17 #include <asm/imx-common/video.h> 18 #include <mmc.h> 19 #include <fsl_esdhc.h> 20 #include <miiphy.h> 21 #include <netdev.h> 22 #include <asm/arch/mxc_hdmi.h> 23 #include <asm/arch/crm_regs.h> 24 #include <asm/io.h> 25 #include <asm/arch/sys_proto.h> 26 DECLARE_GLOBAL_DATA_PTR; 27 28 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 29 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ 30 PAD_CTL_SRE_FAST | PAD_CTL_HYS) 31 32 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \ 33 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \ 34 PAD_CTL_SRE_FAST | PAD_CTL_HYS) 35 36 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 37 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS) 38 39 #define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \ 40 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) 41 42 int dram_init(void) 43 { 44 gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE); 45 46 return 0; 47 } 48 49 iomux_v3_cfg_t const uart1_pads[] = { 50 MX6_PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 51 MX6_PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 52 }; 53 54 iomux_v3_cfg_t const enet_pads[] = { 55 MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL), 56 MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL), 57 MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL), 58 MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 59 MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 60 MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 61 MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 62 MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), 63 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL), 64 MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL), 65 MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 66 MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 67 MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 68 MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 69 MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), 70 /* AR8031 PHY Reset */ 71 MX6_PAD_ENET_CRS_DV__GPIO1_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL), 72 }; 73 74 static void setup_iomux_enet(void) 75 { 76 imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads)); 77 78 /* Reset AR8031 PHY */ 79 gpio_direction_output(IMX_GPIO_NR(1, 25) , 0); 80 udelay(500); 81 gpio_set_value(IMX_GPIO_NR(1, 25), 1); 82 } 83 84 iomux_v3_cfg_t const usdhc2_pads[] = { 85 MX6_PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 86 MX6_PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 87 MX6_PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 88 MX6_PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 89 MX6_PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 90 MX6_PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 91 MX6_PAD_NANDF_D4__SD2_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 92 MX6_PAD_NANDF_D5__SD2_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 93 MX6_PAD_NANDF_D6__SD2_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 94 MX6_PAD_NANDF_D7__SD2_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 95 MX6_PAD_NANDF_D2__GPIO2_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */ 96 }; 97 98 iomux_v3_cfg_t const usdhc3_pads[] = { 99 MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 100 MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 101 MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 102 MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 103 MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 104 MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 105 MX6_PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 106 MX6_PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 107 MX6_PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 108 MX6_PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 109 MX6_PAD_NANDF_D0__GPIO2_IO00 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */ 110 }; 111 112 iomux_v3_cfg_t const usdhc4_pads[] = { 113 MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 114 MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 115 MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 116 MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 117 MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 118 MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 119 MX6_PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 120 MX6_PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 121 MX6_PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 122 MX6_PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 123 }; 124 125 iomux_v3_cfg_t const ecspi1_pads[] = { 126 MX6_PAD_KEY_COL0__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL), 127 MX6_PAD_KEY_COL1__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL), 128 MX6_PAD_KEY_ROW0__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL), 129 MX6_PAD_KEY_ROW1__GPIO4_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL), 130 }; 131 132 static void setup_spi(void) 133 { 134 imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads)); 135 } 136 137 iomux_v3_cfg_t const pcie_pads[] = { 138 MX6_PAD_EIM_D19__GPIO3_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL), /* POWER */ 139 MX6_PAD_GPIO_17__GPIO7_IO12 | MUX_PAD_CTRL(NO_PAD_CTRL), /* RESET */ 140 }; 141 142 static void setup_pcie(void) 143 { 144 imx_iomux_v3_setup_multiple_pads(pcie_pads, ARRAY_SIZE(pcie_pads)); 145 } 146 147 iomux_v3_cfg_t const di0_pads[] = { 148 MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK, /* DISP0_CLK */ 149 MX6_PAD_DI0_PIN2__IPU1_DI0_PIN02, /* DISP0_HSYNC */ 150 MX6_PAD_DI0_PIN3__IPU1_DI0_PIN03, /* DISP0_VSYNC */ 151 }; 152 153 static void setup_iomux_uart(void) 154 { 155 imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); 156 } 157 158 #ifdef CONFIG_FSL_ESDHC 159 struct fsl_esdhc_cfg usdhc_cfg[3] = { 160 {USDHC2_BASE_ADDR}, 161 {USDHC3_BASE_ADDR}, 162 {USDHC4_BASE_ADDR}, 163 }; 164 165 #define USDHC2_CD_GPIO IMX_GPIO_NR(2, 2) 166 #define USDHC3_CD_GPIO IMX_GPIO_NR(2, 0) 167 168 int board_mmc_getcd(struct mmc *mmc) 169 { 170 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; 171 int ret = 0; 172 173 switch (cfg->esdhc_base) { 174 case USDHC2_BASE_ADDR: 175 ret = !gpio_get_value(USDHC2_CD_GPIO); 176 break; 177 case USDHC3_BASE_ADDR: 178 ret = !gpio_get_value(USDHC3_CD_GPIO); 179 break; 180 case USDHC4_BASE_ADDR: 181 ret = 1; /* eMMC/uSDHC4 is always present */ 182 break; 183 } 184 185 return ret; 186 } 187 188 int board_mmc_init(bd_t *bis) 189 { 190 s32 status = 0; 191 int i; 192 193 /* 194 * According to the board_mmc_init() the following map is done: 195 * (U-boot device node) (Physical Port) 196 * mmc0 SD2 197 * mmc1 SD3 198 * mmc2 eMMC 199 */ 200 for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) { 201 switch (i) { 202 case 0: 203 imx_iomux_v3_setup_multiple_pads( 204 usdhc2_pads, ARRAY_SIZE(usdhc2_pads)); 205 gpio_direction_input(USDHC2_CD_GPIO); 206 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); 207 break; 208 case 1: 209 imx_iomux_v3_setup_multiple_pads( 210 usdhc3_pads, ARRAY_SIZE(usdhc3_pads)); 211 gpio_direction_input(USDHC3_CD_GPIO); 212 usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); 213 break; 214 case 2: 215 imx_iomux_v3_setup_multiple_pads( 216 usdhc4_pads, ARRAY_SIZE(usdhc4_pads)); 217 usdhc_cfg[2].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK); 218 break; 219 default: 220 printf("Warning: you configured more USDHC controllers" 221 "(%d) then supported by the board (%d)\n", 222 i + 1, CONFIG_SYS_FSL_USDHC_NUM); 223 return status; 224 } 225 226 status |= fsl_esdhc_initialize(bis, &usdhc_cfg[i]); 227 } 228 229 return status; 230 } 231 #endif 232 233 int mx6_rgmii_rework(struct phy_device *phydev) 234 { 235 unsigned short val; 236 237 /* To enable AR8031 ouput a 125MHz clk from CLK_25M */ 238 phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7); 239 phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016); 240 phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007); 241 242 val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe); 243 val &= 0xffe3; 244 val |= 0x18; 245 phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val); 246 247 /* introduce tx clock delay */ 248 phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5); 249 val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e); 250 val |= 0x0100; 251 phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val); 252 253 return 0; 254 } 255 256 int board_phy_config(struct phy_device *phydev) 257 { 258 mx6_rgmii_rework(phydev); 259 260 if (phydev->drv->config) 261 phydev->drv->config(phydev); 262 263 return 0; 264 } 265 266 #if defined(CONFIG_VIDEO_IPUV3) 267 static void disable_lvds(struct display_info_t const *dev) 268 { 269 struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR; 270 271 int reg = readl(&iomux->gpr[2]); 272 273 reg &= ~(IOMUXC_GPR2_LVDS_CH0_MODE_MASK | 274 IOMUXC_GPR2_LVDS_CH1_MODE_MASK); 275 276 writel(reg, &iomux->gpr[2]); 277 } 278 279 static void do_enable_hdmi(struct display_info_t const *dev) 280 { 281 disable_lvds(dev); 282 imx_enable_hdmi_phy(); 283 } 284 285 static void enable_lvds(struct display_info_t const *dev) 286 { 287 struct iomuxc *iomux = (struct iomuxc *) 288 IOMUXC_BASE_ADDR; 289 u32 reg = readl(&iomux->gpr[2]); 290 reg |= IOMUXC_GPR2_DATA_WIDTH_CH0_18BIT | 291 IOMUXC_GPR2_DATA_WIDTH_CH1_18BIT; 292 writel(reg, &iomux->gpr[2]); 293 } 294 295 struct display_info_t const displays[] = {{ 296 .bus = -1, 297 .addr = 0, 298 .pixfmt = IPU_PIX_FMT_RGB666, 299 .detect = NULL, 300 .enable = enable_lvds, 301 .mode = { 302 .name = "Hannstar-XGA", 303 .refresh = 60, 304 .xres = 1024, 305 .yres = 768, 306 .pixclock = 15385, 307 .left_margin = 220, 308 .right_margin = 40, 309 .upper_margin = 21, 310 .lower_margin = 7, 311 .hsync_len = 60, 312 .vsync_len = 10, 313 .sync = FB_SYNC_EXT, 314 .vmode = FB_VMODE_NONINTERLACED 315 } }, { 316 .bus = -1, 317 .addr = 0, 318 .pixfmt = IPU_PIX_FMT_RGB24, 319 .detect = detect_hdmi, 320 .enable = do_enable_hdmi, 321 .mode = { 322 .name = "HDMI", 323 .refresh = 60, 324 .xres = 1024, 325 .yres = 768, 326 .pixclock = 15385, 327 .left_margin = 220, 328 .right_margin = 40, 329 .upper_margin = 21, 330 .lower_margin = 7, 331 .hsync_len = 60, 332 .vsync_len = 10, 333 .sync = FB_SYNC_EXT, 334 .vmode = FB_VMODE_NONINTERLACED 335 } } }; 336 size_t display_count = ARRAY_SIZE(displays); 337 338 static void setup_display(void) 339 { 340 struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; 341 struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR; 342 int reg; 343 344 /* Setup HSYNC, VSYNC, DISP_CLK for debugging purposes */ 345 imx_iomux_v3_setup_multiple_pads(di0_pads, ARRAY_SIZE(di0_pads)); 346 347 enable_ipu_clock(); 348 imx_setup_hdmi(); 349 350 /* Turn on LDB0, LDB1, IPU,IPU DI0 clocks */ 351 reg = readl(&mxc_ccm->CCGR3); 352 reg |= MXC_CCM_CCGR3_LDB_DI0_MASK | MXC_CCM_CCGR3_LDB_DI1_MASK; 353 writel(reg, &mxc_ccm->CCGR3); 354 355 /* set LDB0, LDB1 clk select to 011/011 */ 356 reg = readl(&mxc_ccm->cs2cdr); 357 reg &= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK 358 | MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK); 359 reg |= (3 << MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET) 360 | (3 << MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_OFFSET); 361 writel(reg, &mxc_ccm->cs2cdr); 362 363 reg = readl(&mxc_ccm->cscmr2); 364 reg |= MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV | MXC_CCM_CSCMR2_LDB_DI1_IPU_DIV; 365 writel(reg, &mxc_ccm->cscmr2); 366 367 reg = readl(&mxc_ccm->chsccdr); 368 reg |= (CHSCCDR_CLK_SEL_LDB_DI0 369 << MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET); 370 reg |= (CHSCCDR_CLK_SEL_LDB_DI0 371 << MXC_CCM_CHSCCDR_IPU1_DI1_CLK_SEL_OFFSET); 372 writel(reg, &mxc_ccm->chsccdr); 373 374 reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES 375 | IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_LOW 376 | IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_LOW 377 | IOMUXC_GPR2_BIT_MAPPING_CH1_SPWG 378 | IOMUXC_GPR2_DATA_WIDTH_CH1_18BIT 379 | IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG 380 | IOMUXC_GPR2_DATA_WIDTH_CH0_18BIT 381 | IOMUXC_GPR2_LVDS_CH0_MODE_DISABLED 382 | IOMUXC_GPR2_LVDS_CH1_MODE_ENABLED_DI0; 383 writel(reg, &iomux->gpr[2]); 384 385 reg = readl(&iomux->gpr[3]); 386 reg = (reg & ~(IOMUXC_GPR3_LVDS1_MUX_CTL_MASK 387 | IOMUXC_GPR3_HDMI_MUX_CTL_MASK)) 388 | (IOMUXC_GPR3_MUX_SRC_IPU1_DI0 389 << IOMUXC_GPR3_LVDS1_MUX_CTL_OFFSET); 390 writel(reg, &iomux->gpr[3]); 391 } 392 #endif /* CONFIG_VIDEO_IPUV3 */ 393 394 /* 395 * Do not overwrite the console 396 * Use always serial for U-Boot console 397 */ 398 int overwrite_console(void) 399 { 400 return 1; 401 } 402 403 int board_eth_init(bd_t *bis) 404 { 405 setup_iomux_enet(); 406 setup_pcie(); 407 408 return cpu_eth_init(bis); 409 } 410 411 int board_early_init_f(void) 412 { 413 setup_iomux_uart(); 414 #if defined(CONFIG_VIDEO_IPUV3) 415 setup_display(); 416 #endif 417 418 return 0; 419 } 420 421 int board_init(void) 422 { 423 /* address of boot parameters */ 424 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; 425 426 #ifdef CONFIG_MXC_SPI 427 setup_spi(); 428 #endif 429 430 return 0; 431 } 432 433 #ifdef CONFIG_CMD_BMODE 434 static const struct boot_mode board_boot_modes[] = { 435 /* 4 bit bus width */ 436 {"sd2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)}, 437 {"sd3", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)}, 438 /* 8 bit bus width */ 439 {"emmc", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)}, 440 {NULL, 0}, 441 }; 442 #endif 443 444 int board_late_init(void) 445 { 446 #ifdef CONFIG_CMD_BMODE 447 add_board_boot_modes(board_boot_modes); 448 #endif 449 450 return 0; 451 } 452 453 int checkboard(void) 454 { 455 puts("Board: MX6-SabreSD\n"); 456 return 0; 457 } 458