1 /* 2 * Copyright (C) Stefano Babic <sbabic@denx.de> 3 * 4 * Based on other i.MX6 boards 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 <linux/errno.h> 14 #include <asm/gpio.h> 15 #include <asm/mach-imx/mxc_i2c.h> 16 #include <asm/mach-imx/iomux-v3.h> 17 #include <asm/mach-imx/boot_mode.h> 18 #include <asm/mach-imx/video.h> 19 #include <mmc.h> 20 #include <fsl_esdhc.h> 21 #include <miiphy.h> 22 #include <netdev.h> 23 #include <asm/arch/mxc_hdmi.h> 24 #include <asm/arch/crm_regs.h> 25 #include <asm/io.h> 26 #include <asm/arch/sys_proto.h> 27 #include <i2c.h> 28 #include <input.h> 29 #include <power/pmic.h> 30 #include <power/pfuze100_pmic.h> 31 #include <asm/arch/mx6-ddr.h> 32 33 DECLARE_GLOBAL_DATA_PTR; 34 35 #define OPEN_PAD_CTRL (PAD_CTL_ODE | PAD_CTL_DSE_DISABLE | (0 << 12)) 36 37 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 38 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ 39 PAD_CTL_SRE_FAST | PAD_CTL_HYS) 40 41 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \ 42 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \ 43 PAD_CTL_SRE_FAST | PAD_CTL_HYS) 44 45 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 46 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS) 47 48 #define ENET_PAD_CTRL_PD (PAD_CTL_PUS_100K_DOWN | \ 49 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS) 50 51 #define ENET_PAD_CTRL_CLK ((PAD_CTL_PUS_100K_UP & ~PAD_CTL_PKE) | \ 52 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) 53 54 #define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \ 55 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) 56 57 #define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 58 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ 59 PAD_CTL_ODE | PAD_CTL_SRE_FAST) 60 61 #define I2C_PMIC 1 62 63 #define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL) 64 65 #define ETH_PHY_RESET IMX_GPIO_NR(2, 4) 66 67 int dram_init(void) 68 { 69 gd->ram_size = imx_ddr_size(); 70 71 return 0; 72 } 73 74 iomux_v3_cfg_t const uart2_pads[] = { 75 MX6_PAD_SD3_DAT5__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 76 MX6_PAD_SD3_DAT4__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 77 }; 78 79 static void setup_iomux_uart(void) 80 { 81 imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads)); 82 } 83 84 #ifdef CONFIG_TARGET_ZC5202 85 iomux_v3_cfg_t const enet_pads[] = { 86 MX6_PAD_GPIO_18__ENET_RX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL), 87 MX6_PAD_ENET_RXD0__ENET_RX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 88 MX6_PAD_ENET_RXD1__ENET_RX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 89 MX6_PAD_KEY_COL2__ENET_RX_DATA2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 90 MX6_PAD_KEY_COL0__ENET_RX_DATA3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 91 MX6_PAD_ENET_CRS_DV__ENET_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL), 92 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK), 93 MX6_PAD_ENET_TXD0__ENET_TX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 94 MX6_PAD_ENET_TXD1__ENET_TX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 95 MX6_PAD_GPIO_19__ENET_TX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL), 96 MX6_PAD_KEY_ROW2__ENET_TX_DATA2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 97 MX6_PAD_KEY_ROW0__ENET_TX_DATA3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 98 MX6_PAD_ENET_TX_EN__ENET_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL), 99 MX6_PAD_ENET_RX_ER__ENET_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL_PD), 100 /* Switch Reset */ 101 MX6_PAD_NANDF_D4__GPIO2_IO04 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD), 102 /* Switch Interrupt */ 103 MX6_PAD_NANDF_D5__GPIO2_IO05 | MUX_PAD_CTRL(NO_PAD_CTRL), 104 /* use CRS and COL pads as GPIOs */ 105 MX6_PAD_KEY_COL3__GPIO4_IO12 | MUX_PAD_CTRL(OPEN_PAD_CTRL), 106 MX6_PAD_KEY_ROW1__GPIO4_IO09 | MUX_PAD_CTRL(OPEN_PAD_CTRL), 107 108 }; 109 110 #define BOARD_NAME "EL6x-ZC5202" 111 #else 112 iomux_v3_cfg_t const enet_pads[] = { 113 MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL), 114 MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL), 115 MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL), 116 MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 117 MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 118 MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 119 MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 120 MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), 121 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK), 122 MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL), 123 MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 124 MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 125 MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 126 MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 127 MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), 128 MX6_PAD_NANDF_D4__GPIO2_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL), 129 MX6_PAD_NANDF_D5__GPIO2_IO05 | MUX_PAD_CTRL(NO_PAD_CTRL), 130 }; 131 #define BOARD_NAME "EL6x-ZC5601" 132 #endif 133 134 static void setup_iomux_enet(void) 135 { 136 imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads)); 137 138 #ifdef CONFIG_TARGET_ZC5202 139 /* set CRS and COL to input */ 140 gpio_direction_input(IMX_GPIO_NR(4, 9)); 141 gpio_direction_input(IMX_GPIO_NR(4, 12)); 142 143 /* Reset Switch */ 144 gpio_direction_output(ETH_PHY_RESET , 0); 145 mdelay(2); 146 gpio_set_value(ETH_PHY_RESET, 1); 147 #endif 148 } 149 150 int board_phy_config(struct phy_device *phydev) 151 { 152 if (phydev->drv->config) 153 phydev->drv->config(phydev); 154 155 return 0; 156 } 157 158 #ifdef CONFIG_MXC_SPI 159 #ifdef CONFIG_TARGET_ZC5202 160 iomux_v3_cfg_t const ecspi1_pads[] = { 161 MX6_PAD_DISP0_DAT20__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL), 162 MX6_PAD_DISP0_DAT21__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL), 163 MX6_PAD_DISP0_DAT22__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL), 164 MX6_PAD_DISP0_DAT23__GPIO5_IO17 | MUX_PAD_CTRL(NO_PAD_CTRL), 165 MX6_PAD_DISP0_DAT15__GPIO5_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL), 166 }; 167 168 iomux_v3_cfg_t const ecspi3_pads[] = { 169 MX6_PAD_DISP0_DAT0__ECSPI3_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL), 170 MX6_PAD_DISP0_DAT2__ECSPI3_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL), 171 MX6_PAD_DISP0_DAT1__ECSPI3_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL), 172 MX6_PAD_DISP0_DAT7__GPIO4_IO28 | MUX_PAD_CTRL(SPI_PAD_CTRL), 173 MX6_PAD_DISP0_DAT8__GPIO4_IO29 | MUX_PAD_CTRL(SPI_PAD_CTRL), 174 MX6_PAD_DISP0_DAT9__GPIO4_IO30 | MUX_PAD_CTRL(SPI_PAD_CTRL), 175 MX6_PAD_DISP0_DAT10__GPIO4_IO31 | MUX_PAD_CTRL(SPI_PAD_CTRL), 176 }; 177 #endif 178 179 iomux_v3_cfg_t const ecspi4_pads[] = { 180 MX6_PAD_EIM_D21__ECSPI4_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL), 181 MX6_PAD_EIM_D28__ECSPI4_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL), 182 MX6_PAD_EIM_D22__ECSPI4_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL), 183 MX6_PAD_EIM_D20__GPIO3_IO20 | MUX_PAD_CTRL(NO_PAD_CTRL), 184 }; 185 186 int board_spi_cs_gpio(unsigned bus, unsigned cs) 187 { 188 return (bus == CONFIG_SF_DEFAULT_BUS && cs == CONFIG_SF_DEFAULT_CS) 189 ? (IMX_GPIO_NR(3, 20)) : -1; 190 } 191 192 static void setup_spi(void) 193 { 194 #ifdef CONFIG_TARGET_ZC5202 195 gpio_request(IMX_GPIO_NR(5, 17), "spi_cs0"); 196 gpio_request(IMX_GPIO_NR(5, 9), "spi_cs1"); 197 gpio_direction_output(IMX_GPIO_NR(5, 17), 1); 198 gpio_direction_output(IMX_GPIO_NR(5, 9), 1); 199 imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads)); 200 #endif 201 202 gpio_request(IMX_GPIO_NR(3, 20), "spi4_cs0"); 203 gpio_direction_output(IMX_GPIO_NR(3, 20), 1); 204 imx_iomux_v3_setup_multiple_pads(ecspi4_pads, ARRAY_SIZE(ecspi4_pads)); 205 206 enable_spi_clk(true, 3); 207 } 208 #endif 209 210 static struct i2c_pads_info i2c_pad_info1 = { 211 .scl = { 212 .i2c_mode = MX6_PAD_EIM_EB2__I2C2_SCL | I2C_PAD, 213 .gpio_mode = MX6_PAD_EIM_EB2__GPIO2_IO30 | I2C_PAD, 214 .gp = IMX_GPIO_NR(2, 30) 215 }, 216 .sda = { 217 .i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | I2C_PAD, 218 .gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 | I2C_PAD, 219 .gp = IMX_GPIO_NR(4, 13) 220 } 221 }; 222 223 static struct i2c_pads_info i2c_pad_info2 = { 224 .scl = { 225 .i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | I2C_PAD, 226 .gpio_mode = MX6_PAD_GPIO_5__GPIO1_IO05 | I2C_PAD, 227 .gp = IMX_GPIO_NR(1, 5) 228 }, 229 .sda = { 230 .i2c_mode = MX6_PAD_GPIO_16__I2C3_SDA | I2C_PAD, 231 .gpio_mode = MX6_PAD_GPIO_16__GPIO7_IO11 | I2C_PAD, 232 .gp = IMX_GPIO_NR(7, 11) 233 } 234 }; 235 236 iomux_v3_cfg_t const usdhc2_pads[] = { 237 MX6_PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 238 MX6_PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 239 MX6_PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 240 MX6_PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 241 MX6_PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 242 MX6_PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 243 MX6_PAD_GPIO_4__SD2_CD_B | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */ 244 }; 245 246 iomux_v3_cfg_t const usdhc4_pads[] = { 247 MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 248 MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 249 MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 250 MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 251 MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 252 MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 253 MX6_PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 254 MX6_PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 255 MX6_PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 256 MX6_PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 257 }; 258 259 #ifdef CONFIG_FSL_ESDHC 260 struct fsl_esdhc_cfg usdhc_cfg[2] = { 261 {USDHC2_BASE_ADDR}, 262 {USDHC4_BASE_ADDR}, 263 }; 264 265 #define USDHC2_CD_GPIO IMX_GPIO_NR(1, 4) 266 267 int board_mmc_getcd(struct mmc *mmc) 268 { 269 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; 270 int ret = 0; 271 272 switch (cfg->esdhc_base) { 273 case USDHC2_BASE_ADDR: 274 ret = !gpio_get_value(USDHC2_CD_GPIO); 275 break; 276 case USDHC4_BASE_ADDR: 277 ret = 1; /* eMMC/uSDHC4 is always present */ 278 break; 279 } 280 281 return ret; 282 } 283 284 int board_mmc_init(bd_t *bis) 285 { 286 #ifndef CONFIG_SPL_BUILD 287 int ret; 288 int i; 289 290 /* 291 * According to the board_mmc_init() the following map is done: 292 * (U-boot device node) (Physical Port) 293 * mmc0 SD2 294 * mmc1 SD3 295 * mmc2 eMMC 296 */ 297 for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) { 298 switch (i) { 299 case 0: 300 imx_iomux_v3_setup_multiple_pads( 301 usdhc2_pads, ARRAY_SIZE(usdhc2_pads)); 302 gpio_direction_input(USDHC2_CD_GPIO); 303 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); 304 break; 305 case 1: 306 imx_iomux_v3_setup_multiple_pads( 307 usdhc4_pads, ARRAY_SIZE(usdhc4_pads)); 308 usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK); 309 break; 310 default: 311 printf("Warning: you configured more USDHC controllers" 312 "(%d) then supported by the board (%d)\n", 313 i + 1, CONFIG_SYS_FSL_USDHC_NUM); 314 return -EINVAL; 315 } 316 317 ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]); 318 if (ret) 319 return ret; 320 } 321 322 return 0; 323 #else 324 struct src *psrc = (struct src *)SRC_BASE_ADDR; 325 unsigned reg = readl(&psrc->sbmr1) >> 11; 326 327 /* 328 * Upon reading BOOT_CFG register the following map is done: 329 * Bit 11 and 12 of BOOT_CFG register can determine the current 330 * mmc port 331 * 0x1 SD1 332 * 0x2 SD2 333 * 0x3 SD4 334 */ 335 336 switch (reg & 0x3) { 337 case 0x1: 338 imx_iomux_v3_setup_multiple_pads( 339 usdhc2_pads, ARRAY_SIZE(usdhc2_pads)); 340 usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR; 341 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); 342 gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk; 343 break; 344 case 0x3: 345 imx_iomux_v3_setup_multiple_pads( 346 usdhc4_pads, ARRAY_SIZE(usdhc4_pads)); 347 usdhc_cfg[0].esdhc_base = USDHC4_BASE_ADDR; 348 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK); 349 gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk; 350 break; 351 } 352 353 return fsl_esdhc_initialize(bis, &usdhc_cfg[0]); 354 #endif 355 356 } 357 #endif 358 359 360 /* 361 * Do not overwrite the console 362 * Use always serial for U-Boot console 363 */ 364 int overwrite_console(void) 365 { 366 return 1; 367 } 368 369 int board_eth_init(bd_t *bis) 370 { 371 setup_iomux_enet(); 372 enable_enet_clk(1); 373 374 return cpu_eth_init(bis); 375 } 376 377 int board_early_init_f(void) 378 { 379 380 setup_iomux_uart(); 381 setup_spi(); 382 383 return 0; 384 } 385 386 int board_init(void) 387 { 388 /* address of boot parameters */ 389 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; 390 391 setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1); 392 setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2); 393 394 return 0; 395 } 396 397 int power_init_board(void) 398 { 399 struct pmic *p; 400 int ret; 401 unsigned int reg; 402 403 ret = power_pfuze100_init(I2C_PMIC); 404 if (ret) 405 return ret; 406 407 p = pmic_get("PFUZE100"); 408 ret = pmic_probe(p); 409 if (ret) 410 return ret; 411 412 pmic_reg_read(p, PFUZE100_DEVICEID, ®); 413 printf("PMIC: PFUZE100 ID=0x%02x\n", reg); 414 415 /* Increase VGEN3 from 2.5 to 2.8V */ 416 pmic_reg_read(p, PFUZE100_VGEN3VOL, ®); 417 reg &= ~LDO_VOL_MASK; 418 reg |= LDOB_2_80V; 419 pmic_reg_write(p, PFUZE100_VGEN3VOL, reg); 420 421 /* Increase VGEN5 from 2.8 to 3V */ 422 pmic_reg_read(p, PFUZE100_VGEN5VOL, ®); 423 reg &= ~LDO_VOL_MASK; 424 reg |= LDOB_3_00V; 425 pmic_reg_write(p, PFUZE100_VGEN5VOL, reg); 426 427 /* Set SW1AB stanby volage to 0.975V */ 428 pmic_reg_read(p, PFUZE100_SW1ABSTBY, ®); 429 reg &= ~SW1x_STBY_MASK; 430 reg |= SW1x_0_975V; 431 pmic_reg_write(p, PFUZE100_SW1ABSTBY, reg); 432 433 /* Set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */ 434 pmic_reg_read(p, PFUZE100_SW1ABCONF, ®); 435 reg &= ~SW1xCONF_DVSSPEED_MASK; 436 reg |= SW1xCONF_DVSSPEED_4US; 437 pmic_reg_write(p, PFUZE100_SW1ABCONF, reg); 438 439 /* Set SW1C standby voltage to 0.975V */ 440 pmic_reg_read(p, PFUZE100_SW1CSTBY, ®); 441 reg &= ~SW1x_STBY_MASK; 442 reg |= SW1x_0_975V; 443 pmic_reg_write(p, PFUZE100_SW1CSTBY, reg); 444 445 /* Set SW1C/VDDSOC step ramp up time from 16us to 4us/25mV */ 446 pmic_reg_read(p, PFUZE100_SW1CCONF, ®); 447 reg &= ~SW1xCONF_DVSSPEED_MASK; 448 reg |= SW1xCONF_DVSSPEED_4US; 449 pmic_reg_write(p, PFUZE100_SW1CCONF, reg); 450 451 return 0; 452 } 453 454 #ifdef CONFIG_CMD_BMODE 455 static const struct boot_mode board_boot_modes[] = { 456 /* 4 bit bus width */ 457 {"sd2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)}, 458 /* 8 bit bus width */ 459 {"emmc", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)}, 460 {NULL, 0}, 461 }; 462 #endif 463 464 int board_late_init(void) 465 { 466 #ifdef CONFIG_CMD_BMODE 467 add_board_boot_modes(board_boot_modes); 468 #endif 469 470 env_set("board_name", BOARD_NAME); 471 return 0; 472 } 473 474 int checkboard(void) 475 { 476 puts("Board: "); 477 puts(BOARD_NAME "\n"); 478 479 return 0; 480 } 481 482 #ifdef CONFIG_SPL_BUILD 483 #include <spl.h> 484 #include <linux/libfdt.h> 485 486 const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = { 487 .dram_sdclk_0 = 0x00020030, 488 .dram_sdclk_1 = 0x00020030, 489 .dram_cas = 0x00020030, 490 .dram_ras = 0x00020030, 491 .dram_reset = 0x00020030, 492 .dram_sdcke0 = 0x00003000, 493 .dram_sdcke1 = 0x00003000, 494 .dram_sdba2 = 0x00000000, 495 .dram_sdodt0 = 0x00003030, 496 .dram_sdodt1 = 0x00003030, 497 .dram_sdqs0 = 0x00000030, 498 .dram_sdqs1 = 0x00000030, 499 .dram_sdqs2 = 0x00000030, 500 .dram_sdqs3 = 0x00000030, 501 .dram_sdqs4 = 0x00000030, 502 .dram_sdqs5 = 0x00000030, 503 .dram_sdqs6 = 0x00000030, 504 .dram_sdqs7 = 0x00000030, 505 .dram_dqm0 = 0x00020030, 506 .dram_dqm1 = 0x00020030, 507 .dram_dqm2 = 0x00020030, 508 .dram_dqm3 = 0x00020030, 509 .dram_dqm4 = 0x00020030, 510 .dram_dqm5 = 0x00020030, 511 .dram_dqm6 = 0x00020030, 512 .dram_dqm7 = 0x00020030, 513 }; 514 515 const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = { 516 .grp_ddr_type = 0x000C0000, 517 .grp_ddrmode_ctl = 0x00020000, 518 .grp_ddrpke = 0x00000000, 519 .grp_addds = 0x00000030, 520 .grp_ctlds = 0x00000030, 521 .grp_ddrmode = 0x00020000, 522 .grp_b0ds = 0x00000030, 523 .grp_b1ds = 0x00000030, 524 .grp_b2ds = 0x00000030, 525 .grp_b3ds = 0x00000030, 526 .grp_b4ds = 0x00000030, 527 .grp_b5ds = 0x00000030, 528 .grp_b6ds = 0x00000030, 529 .grp_b7ds = 0x00000030, 530 }; 531 532 const struct mx6_mmdc_calibration mx6_mmcd_calib = { 533 .p0_mpwldectrl0 = 0x001F001F, 534 .p0_mpwldectrl1 = 0x001F001F, 535 .p1_mpwldectrl0 = 0x00440044, 536 .p1_mpwldectrl1 = 0x00440044, 537 .p0_mpdgctrl0 = 0x434B0350, 538 .p0_mpdgctrl1 = 0x034C0359, 539 .p1_mpdgctrl0 = 0x434B0350, 540 .p1_mpdgctrl1 = 0x03650348, 541 .p0_mprddlctl = 0x4436383B, 542 .p1_mprddlctl = 0x39393341, 543 .p0_mpwrdlctl = 0x35373933, 544 .p1_mpwrdlctl = 0x48254A36, 545 }; 546 547 /* MT41K128M16JT-125 */ 548 static struct mx6_ddr3_cfg mem_ddr = { 549 .mem_speed = 1600, 550 .density = 2, 551 .width = 16, 552 .banks = 8, 553 .rowaddr = 14, 554 .coladdr = 10, 555 .pagesz = 2, 556 .trcd = 1375, 557 .trcmin = 4875, 558 .trasmin = 3500, 559 }; 560 561 static void ccgr_init(void) 562 { 563 struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; 564 565 writel(0x00C03F3F, &ccm->CCGR0); 566 writel(0x0030FC03, &ccm->CCGR1); 567 writel(0x0FFFC000, &ccm->CCGR2); 568 writel(0x3FF00000, &ccm->CCGR3); 569 writel(0x00FFF300, &ccm->CCGR4); 570 writel(0x0F0000C3, &ccm->CCGR5); 571 writel(0x000003FF, &ccm->CCGR6); 572 } 573 574 /* 575 * This section requires the differentiation between iMX6 Sabre boards, but 576 * for now, it will configure only for the mx6q variant. 577 */ 578 static void spl_dram_init(void) 579 { 580 struct mx6_ddr_sysinfo sysinfo = { 581 /* width of data bus:0=16,1=32,2=64 */ 582 .dsize = 2, 583 /* config for full 4GB range so that get_mem_size() works */ 584 .cs_density = 32, /* 32Gb per CS */ 585 /* single chip select */ 586 .ncs = 1, 587 .cs1_mirror = 0, 588 .rtt_wr = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Wr = RZQ/4 */ 589 .rtt_nom = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Nom = RZQ/4 */ 590 .walat = 1, /* Write additional latency */ 591 .ralat = 5, /* Read additional latency */ 592 .mif3_mode = 3, /* Command prediction working mode */ 593 .bi_on = 1, /* Bank interleaving enabled */ 594 .sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */ 595 .rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */ 596 .ddr_type = DDR_TYPE_DDR3, 597 .refsel = 1, /* Refresh cycles at 32KHz */ 598 .refr = 7, /* 8 refresh commands per refresh cycle */ 599 }; 600 601 mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs); 602 mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr); 603 } 604 605 void board_init_f(ulong dummy) 606 { 607 /* setup AIPS and disable watchdog */ 608 arch_cpu_init(); 609 610 ccgr_init(); 611 gpr_init(); 612 613 /* iomux and setup of i2c */ 614 board_early_init_f(); 615 616 /* setup GP timer */ 617 timer_init(); 618 619 /* UART clocks enabled and gd valid - init serial console */ 620 preloader_console_init(); 621 622 /* DDR initialization */ 623 spl_dram_init(); 624 625 /* Clear the BSS. */ 626 memset(__bss_start, 0, __bss_end - __bss_start); 627 628 /* load/boot image from boot device */ 629 board_init_r(NULL, 0); 630 } 631 632 #endif 633