1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (C) Stefano Babic <sbabic@denx.de> 4 * 5 * Based on other i.MX6 boards 6 */ 7 8 #include <asm/arch/clock.h> 9 #include <asm/arch/imx-regs.h> 10 #include <asm/arch/iomux.h> 11 #include <asm/arch/mx6-pins.h> 12 #include <linux/errno.h> 13 #include <asm/gpio.h> 14 #include <asm/mach-imx/mxc_i2c.h> 15 #include <asm/mach-imx/iomux-v3.h> 16 #include <asm/mach-imx/boot_mode.h> 17 #include <asm/mach-imx/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 #include <i2c.h> 27 #include <input.h> 28 #include <power/pmic.h> 29 #include <power/pfuze100_pmic.h> 30 #include <asm/arch/mx6-ddr.h> 31 32 DECLARE_GLOBAL_DATA_PTR; 33 34 #define OPEN_PAD_CTRL (PAD_CTL_ODE | PAD_CTL_DSE_DISABLE | (0 << 12)) 35 36 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 37 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ 38 PAD_CTL_SRE_FAST | PAD_CTL_HYS) 39 40 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \ 41 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \ 42 PAD_CTL_SRE_FAST | PAD_CTL_HYS) 43 44 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 45 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS) 46 47 #define ENET_PAD_CTRL_PD (PAD_CTL_PUS_100K_DOWN | \ 48 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS) 49 50 #define ENET_PAD_CTRL_CLK ((PAD_CTL_PUS_100K_UP & ~PAD_CTL_PKE) | \ 51 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) 52 53 #define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \ 54 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) 55 56 #define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 57 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ 58 PAD_CTL_ODE | PAD_CTL_SRE_FAST) 59 60 #define I2C_PMIC 1 61 62 #define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL) 63 64 #define ETH_PHY_RESET IMX_GPIO_NR(2, 4) 65 66 int dram_init(void) 67 { 68 gd->ram_size = imx_ddr_size(); 69 70 return 0; 71 } 72 73 iomux_v3_cfg_t const uart2_pads[] = { 74 MX6_PAD_SD3_DAT5__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 75 MX6_PAD_SD3_DAT4__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 76 }; 77 78 static void setup_iomux_uart(void) 79 { 80 imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads)); 81 } 82 83 #ifdef CONFIG_TARGET_ZC5202 84 iomux_v3_cfg_t const enet_pads[] = { 85 MX6_PAD_GPIO_18__ENET_RX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL), 86 MX6_PAD_ENET_RXD0__ENET_RX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 87 MX6_PAD_ENET_RXD1__ENET_RX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 88 MX6_PAD_KEY_COL2__ENET_RX_DATA2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 89 MX6_PAD_KEY_COL0__ENET_RX_DATA3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 90 MX6_PAD_ENET_CRS_DV__ENET_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL), 91 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK), 92 MX6_PAD_ENET_TXD0__ENET_TX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 93 MX6_PAD_ENET_TXD1__ENET_TX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 94 MX6_PAD_GPIO_19__ENET_TX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL), 95 MX6_PAD_KEY_ROW2__ENET_TX_DATA2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 96 MX6_PAD_KEY_ROW0__ENET_TX_DATA3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 97 MX6_PAD_ENET_TX_EN__ENET_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL), 98 MX6_PAD_ENET_RX_ER__ENET_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL_PD), 99 /* Switch Reset */ 100 MX6_PAD_NANDF_D4__GPIO2_IO04 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD), 101 /* Switch Interrupt */ 102 MX6_PAD_NANDF_D5__GPIO2_IO05 | MUX_PAD_CTRL(NO_PAD_CTRL), 103 /* use CRS and COL pads as GPIOs */ 104 MX6_PAD_KEY_COL3__GPIO4_IO12 | MUX_PAD_CTRL(OPEN_PAD_CTRL), 105 MX6_PAD_KEY_ROW1__GPIO4_IO09 | MUX_PAD_CTRL(OPEN_PAD_CTRL), 106 107 }; 108 109 #define BOARD_NAME "EL6x-ZC5202" 110 #else 111 iomux_v3_cfg_t const enet_pads[] = { 112 MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL), 113 MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL), 114 MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL), 115 MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 116 MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 117 MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 118 MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 119 MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), 120 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK), 121 MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL), 122 MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 123 MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 124 MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 125 MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 126 MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), 127 MX6_PAD_NANDF_D4__GPIO2_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL), 128 MX6_PAD_NANDF_D5__GPIO2_IO05 | MUX_PAD_CTRL(NO_PAD_CTRL), 129 }; 130 #define BOARD_NAME "EL6x-ZC5601" 131 #endif 132 133 static void setup_iomux_enet(void) 134 { 135 imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads)); 136 137 #ifdef CONFIG_TARGET_ZC5202 138 /* set CRS and COL to input */ 139 gpio_direction_input(IMX_GPIO_NR(4, 9)); 140 gpio_direction_input(IMX_GPIO_NR(4, 12)); 141 142 /* Reset Switch */ 143 gpio_direction_output(ETH_PHY_RESET , 0); 144 mdelay(2); 145 gpio_set_value(ETH_PHY_RESET, 1); 146 #endif 147 } 148 149 int board_phy_config(struct phy_device *phydev) 150 { 151 if (phydev->drv->config) 152 phydev->drv->config(phydev); 153 154 return 0; 155 } 156 157 #ifdef CONFIG_MXC_SPI 158 #ifdef CONFIG_TARGET_ZC5202 159 iomux_v3_cfg_t const ecspi1_pads[] = { 160 MX6_PAD_DISP0_DAT20__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL), 161 MX6_PAD_DISP0_DAT21__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL), 162 MX6_PAD_DISP0_DAT22__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL), 163 MX6_PAD_DISP0_DAT23__GPIO5_IO17 | MUX_PAD_CTRL(NO_PAD_CTRL), 164 MX6_PAD_DISP0_DAT15__GPIO5_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL), 165 }; 166 167 iomux_v3_cfg_t const ecspi3_pads[] = { 168 MX6_PAD_DISP0_DAT0__ECSPI3_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL), 169 MX6_PAD_DISP0_DAT2__ECSPI3_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL), 170 MX6_PAD_DISP0_DAT1__ECSPI3_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL), 171 MX6_PAD_DISP0_DAT7__GPIO4_IO28 | MUX_PAD_CTRL(SPI_PAD_CTRL), 172 MX6_PAD_DISP0_DAT8__GPIO4_IO29 | MUX_PAD_CTRL(SPI_PAD_CTRL), 173 MX6_PAD_DISP0_DAT9__GPIO4_IO30 | MUX_PAD_CTRL(SPI_PAD_CTRL), 174 MX6_PAD_DISP0_DAT10__GPIO4_IO31 | MUX_PAD_CTRL(SPI_PAD_CTRL), 175 }; 176 #endif 177 178 iomux_v3_cfg_t const ecspi4_pads[] = { 179 MX6_PAD_EIM_D21__ECSPI4_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL), 180 MX6_PAD_EIM_D28__ECSPI4_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL), 181 MX6_PAD_EIM_D22__ECSPI4_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL), 182 MX6_PAD_EIM_D20__GPIO3_IO20 | MUX_PAD_CTRL(NO_PAD_CTRL), 183 }; 184 185 int board_spi_cs_gpio(unsigned bus, unsigned cs) 186 { 187 return (bus == CONFIG_SF_DEFAULT_BUS && cs == CONFIG_SF_DEFAULT_CS) 188 ? (IMX_GPIO_NR(3, 20)) : -1; 189 } 190 191 static void setup_spi(void) 192 { 193 #ifdef CONFIG_TARGET_ZC5202 194 gpio_request(IMX_GPIO_NR(5, 17), "spi_cs0"); 195 gpio_request(IMX_GPIO_NR(5, 9), "spi_cs1"); 196 gpio_direction_output(IMX_GPIO_NR(5, 17), 1); 197 gpio_direction_output(IMX_GPIO_NR(5, 9), 1); 198 imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads)); 199 #endif 200 201 gpio_request(IMX_GPIO_NR(3, 20), "spi4_cs0"); 202 gpio_direction_output(IMX_GPIO_NR(3, 20), 1); 203 imx_iomux_v3_setup_multiple_pads(ecspi4_pads, ARRAY_SIZE(ecspi4_pads)); 204 205 enable_spi_clk(true, 3); 206 } 207 #endif 208 209 static struct i2c_pads_info i2c_pad_info1 = { 210 .scl = { 211 .i2c_mode = MX6_PAD_EIM_EB2__I2C2_SCL | I2C_PAD, 212 .gpio_mode = MX6_PAD_EIM_EB2__GPIO2_IO30 | I2C_PAD, 213 .gp = IMX_GPIO_NR(2, 30) 214 }, 215 .sda = { 216 .i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | I2C_PAD, 217 .gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 | I2C_PAD, 218 .gp = IMX_GPIO_NR(4, 13) 219 } 220 }; 221 222 static struct i2c_pads_info i2c_pad_info2 = { 223 .scl = { 224 .i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | I2C_PAD, 225 .gpio_mode = MX6_PAD_GPIO_5__GPIO1_IO05 | I2C_PAD, 226 .gp = IMX_GPIO_NR(1, 5) 227 }, 228 .sda = { 229 .i2c_mode = MX6_PAD_GPIO_16__I2C3_SDA | I2C_PAD, 230 .gpio_mode = MX6_PAD_GPIO_16__GPIO7_IO11 | I2C_PAD, 231 .gp = IMX_GPIO_NR(7, 11) 232 } 233 }; 234 235 iomux_v3_cfg_t const usdhc2_pads[] = { 236 MX6_PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 237 MX6_PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 238 MX6_PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 239 MX6_PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 240 MX6_PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 241 MX6_PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 242 MX6_PAD_GPIO_4__SD2_CD_B | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */ 243 }; 244 245 iomux_v3_cfg_t const usdhc4_pads[] = { 246 MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 247 MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 248 MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 249 MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 250 MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 251 MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 252 MX6_PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 253 MX6_PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 254 MX6_PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 255 MX6_PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 256 }; 257 258 #ifdef CONFIG_FSL_ESDHC 259 struct fsl_esdhc_cfg usdhc_cfg[2] = { 260 {USDHC2_BASE_ADDR}, 261 {USDHC4_BASE_ADDR}, 262 }; 263 264 #define USDHC2_CD_GPIO IMX_GPIO_NR(1, 4) 265 266 int board_mmc_getcd(struct mmc *mmc) 267 { 268 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; 269 int ret = 0; 270 271 switch (cfg->esdhc_base) { 272 case USDHC2_BASE_ADDR: 273 ret = !gpio_get_value(USDHC2_CD_GPIO); 274 break; 275 case USDHC4_BASE_ADDR: 276 ret = 1; /* eMMC/uSDHC4 is always present */ 277 break; 278 } 279 280 return ret; 281 } 282 283 int board_mmc_init(bd_t *bis) 284 { 285 #ifndef CONFIG_SPL_BUILD 286 int ret; 287 int i; 288 289 /* 290 * According to the board_mmc_init() the following map is done: 291 * (U-boot device node) (Physical Port) 292 * mmc0 SD2 293 * mmc1 SD3 294 * mmc2 eMMC 295 */ 296 for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) { 297 switch (i) { 298 case 0: 299 imx_iomux_v3_setup_multiple_pads( 300 usdhc2_pads, ARRAY_SIZE(usdhc2_pads)); 301 gpio_direction_input(USDHC2_CD_GPIO); 302 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); 303 break; 304 case 1: 305 imx_iomux_v3_setup_multiple_pads( 306 usdhc4_pads, ARRAY_SIZE(usdhc4_pads)); 307 usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK); 308 break; 309 default: 310 printf("Warning: you configured more USDHC controllers" 311 "(%d) then supported by the board (%d)\n", 312 i + 1, CONFIG_SYS_FSL_USDHC_NUM); 313 return -EINVAL; 314 } 315 316 ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]); 317 if (ret) 318 return ret; 319 } 320 321 return 0; 322 #else 323 struct src *psrc = (struct src *)SRC_BASE_ADDR; 324 unsigned reg = readl(&psrc->sbmr1) >> 11; 325 326 /* 327 * Upon reading BOOT_CFG register the following map is done: 328 * Bit 11 and 12 of BOOT_CFG register can determine the current 329 * mmc port 330 * 0x1 SD1 331 * 0x2 SD2 332 * 0x3 SD4 333 */ 334 335 switch (reg & 0x3) { 336 case 0x1: 337 imx_iomux_v3_setup_multiple_pads( 338 usdhc2_pads, ARRAY_SIZE(usdhc2_pads)); 339 usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR; 340 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); 341 gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk; 342 break; 343 case 0x3: 344 imx_iomux_v3_setup_multiple_pads( 345 usdhc4_pads, ARRAY_SIZE(usdhc4_pads)); 346 usdhc_cfg[0].esdhc_base = USDHC4_BASE_ADDR; 347 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK); 348 gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk; 349 break; 350 } 351 352 return fsl_esdhc_initialize(bis, &usdhc_cfg[0]); 353 #endif 354 355 } 356 #endif 357 358 359 /* 360 * Do not overwrite the console 361 * Use always serial for U-Boot console 362 */ 363 int overwrite_console(void) 364 { 365 return 1; 366 } 367 368 int board_eth_init(bd_t *bis) 369 { 370 setup_iomux_enet(); 371 enable_enet_clk(1); 372 373 return cpu_eth_init(bis); 374 } 375 376 int board_early_init_f(void) 377 { 378 379 setup_iomux_uart(); 380 setup_spi(); 381 382 return 0; 383 } 384 385 int board_init(void) 386 { 387 /* address of boot parameters */ 388 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; 389 390 setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1); 391 setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2); 392 393 return 0; 394 } 395 396 int power_init_board(void) 397 { 398 struct pmic *p; 399 int ret; 400 unsigned int reg; 401 402 ret = power_pfuze100_init(I2C_PMIC); 403 if (ret) 404 return ret; 405 406 p = pmic_get("PFUZE100"); 407 ret = pmic_probe(p); 408 if (ret) 409 return ret; 410 411 pmic_reg_read(p, PFUZE100_DEVICEID, ®); 412 printf("PMIC: PFUZE100 ID=0x%02x\n", reg); 413 414 /* Increase VGEN3 from 2.5 to 2.8V */ 415 pmic_reg_read(p, PFUZE100_VGEN3VOL, ®); 416 reg &= ~LDO_VOL_MASK; 417 reg |= LDOB_2_80V; 418 pmic_reg_write(p, PFUZE100_VGEN3VOL, reg); 419 420 /* Increase VGEN5 from 2.8 to 3V */ 421 pmic_reg_read(p, PFUZE100_VGEN5VOL, ®); 422 reg &= ~LDO_VOL_MASK; 423 reg |= LDOB_3_00V; 424 pmic_reg_write(p, PFUZE100_VGEN5VOL, reg); 425 426 /* Set SW1AB stanby volage to 0.975V */ 427 pmic_reg_read(p, PFUZE100_SW1ABSTBY, ®); 428 reg &= ~SW1x_STBY_MASK; 429 reg |= SW1x_0_975V; 430 pmic_reg_write(p, PFUZE100_SW1ABSTBY, reg); 431 432 /* Set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */ 433 pmic_reg_read(p, PFUZE100_SW1ABCONF, ®); 434 reg &= ~SW1xCONF_DVSSPEED_MASK; 435 reg |= SW1xCONF_DVSSPEED_4US; 436 pmic_reg_write(p, PFUZE100_SW1ABCONF, reg); 437 438 /* Set SW1C standby voltage to 0.975V */ 439 pmic_reg_read(p, PFUZE100_SW1CSTBY, ®); 440 reg &= ~SW1x_STBY_MASK; 441 reg |= SW1x_0_975V; 442 pmic_reg_write(p, PFUZE100_SW1CSTBY, reg); 443 444 /* Set SW1C/VDDSOC step ramp up time from 16us to 4us/25mV */ 445 pmic_reg_read(p, PFUZE100_SW1CCONF, ®); 446 reg &= ~SW1xCONF_DVSSPEED_MASK; 447 reg |= SW1xCONF_DVSSPEED_4US; 448 pmic_reg_write(p, PFUZE100_SW1CCONF, reg); 449 450 return 0; 451 } 452 453 #ifdef CONFIG_CMD_BMODE 454 static const struct boot_mode board_boot_modes[] = { 455 /* 4 bit bus width */ 456 {"sd2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)}, 457 /* 8 bit bus width */ 458 {"emmc", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)}, 459 {NULL, 0}, 460 }; 461 #endif 462 463 int board_late_init(void) 464 { 465 #ifdef CONFIG_CMD_BMODE 466 add_board_boot_modes(board_boot_modes); 467 #endif 468 469 env_set("board_name", BOARD_NAME); 470 return 0; 471 } 472 473 int checkboard(void) 474 { 475 puts("Board: "); 476 puts(BOARD_NAME "\n"); 477 478 return 0; 479 } 480 481 #ifdef CONFIG_SPL_BUILD 482 #include <spl.h> 483 #include <linux/libfdt.h> 484 485 const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = { 486 .dram_sdclk_0 = 0x00020030, 487 .dram_sdclk_1 = 0x00020030, 488 .dram_cas = 0x00020030, 489 .dram_ras = 0x00020030, 490 .dram_reset = 0x00020030, 491 .dram_sdcke0 = 0x00003000, 492 .dram_sdcke1 = 0x00003000, 493 .dram_sdba2 = 0x00000000, 494 .dram_sdodt0 = 0x00003030, 495 .dram_sdodt1 = 0x00003030, 496 .dram_sdqs0 = 0x00000030, 497 .dram_sdqs1 = 0x00000030, 498 .dram_sdqs2 = 0x00000030, 499 .dram_sdqs3 = 0x00000030, 500 .dram_sdqs4 = 0x00000030, 501 .dram_sdqs5 = 0x00000030, 502 .dram_sdqs6 = 0x00000030, 503 .dram_sdqs7 = 0x00000030, 504 .dram_dqm0 = 0x00020030, 505 .dram_dqm1 = 0x00020030, 506 .dram_dqm2 = 0x00020030, 507 .dram_dqm3 = 0x00020030, 508 .dram_dqm4 = 0x00020030, 509 .dram_dqm5 = 0x00020030, 510 .dram_dqm6 = 0x00020030, 511 .dram_dqm7 = 0x00020030, 512 }; 513 514 const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = { 515 .grp_ddr_type = 0x000C0000, 516 .grp_ddrmode_ctl = 0x00020000, 517 .grp_ddrpke = 0x00000000, 518 .grp_addds = 0x00000030, 519 .grp_ctlds = 0x00000030, 520 .grp_ddrmode = 0x00020000, 521 .grp_b0ds = 0x00000030, 522 .grp_b1ds = 0x00000030, 523 .grp_b2ds = 0x00000030, 524 .grp_b3ds = 0x00000030, 525 .grp_b4ds = 0x00000030, 526 .grp_b5ds = 0x00000030, 527 .grp_b6ds = 0x00000030, 528 .grp_b7ds = 0x00000030, 529 }; 530 531 const struct mx6_mmdc_calibration mx6_mmcd_calib = { 532 .p0_mpwldectrl0 = 0x001F001F, 533 .p0_mpwldectrl1 = 0x001F001F, 534 .p1_mpwldectrl0 = 0x00440044, 535 .p1_mpwldectrl1 = 0x00440044, 536 .p0_mpdgctrl0 = 0x434B0350, 537 .p0_mpdgctrl1 = 0x034C0359, 538 .p1_mpdgctrl0 = 0x434B0350, 539 .p1_mpdgctrl1 = 0x03650348, 540 .p0_mprddlctl = 0x4436383B, 541 .p1_mprddlctl = 0x39393341, 542 .p0_mpwrdlctl = 0x35373933, 543 .p1_mpwrdlctl = 0x48254A36, 544 }; 545 546 /* MT41K128M16JT-125 */ 547 static struct mx6_ddr3_cfg mem_ddr = { 548 .mem_speed = 1600, 549 .density = 2, 550 .width = 16, 551 .banks = 8, 552 .rowaddr = 14, 553 .coladdr = 10, 554 .pagesz = 2, 555 .trcd = 1375, 556 .trcmin = 4875, 557 .trasmin = 3500, 558 }; 559 560 static void ccgr_init(void) 561 { 562 struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; 563 564 writel(0x00C03F3F, &ccm->CCGR0); 565 writel(0x0030FC03, &ccm->CCGR1); 566 writel(0x0FFFC000, &ccm->CCGR2); 567 writel(0x3FF00000, &ccm->CCGR3); 568 writel(0x00FFF300, &ccm->CCGR4); 569 writel(0x0F0000C3, &ccm->CCGR5); 570 writel(0x000003FF, &ccm->CCGR6); 571 } 572 573 /* 574 * This section requires the differentiation between iMX6 Sabre boards, but 575 * for now, it will configure only for the mx6q variant. 576 */ 577 static void spl_dram_init(void) 578 { 579 struct mx6_ddr_sysinfo sysinfo = { 580 /* width of data bus:0=16,1=32,2=64 */ 581 .dsize = 2, 582 /* config for full 4GB range so that get_mem_size() works */ 583 .cs_density = 32, /* 32Gb per CS */ 584 /* single chip select */ 585 .ncs = 1, 586 .cs1_mirror = 0, 587 .rtt_wr = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Wr = RZQ/4 */ 588 .rtt_nom = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Nom = RZQ/4 */ 589 .walat = 1, /* Write additional latency */ 590 .ralat = 5, /* Read additional latency */ 591 .mif3_mode = 3, /* Command prediction working mode */ 592 .bi_on = 1, /* Bank interleaving enabled */ 593 .sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */ 594 .rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */ 595 .ddr_type = DDR_TYPE_DDR3, 596 .refsel = 1, /* Refresh cycles at 32KHz */ 597 .refr = 7, /* 8 refresh commands per refresh cycle */ 598 }; 599 600 mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs); 601 mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr); 602 } 603 604 void board_init_f(ulong dummy) 605 { 606 /* setup AIPS and disable watchdog */ 607 arch_cpu_init(); 608 609 ccgr_init(); 610 gpr_init(); 611 612 /* iomux and setup of i2c */ 613 board_early_init_f(); 614 615 /* setup GP timer */ 616 timer_init(); 617 618 /* UART clocks enabled and gd valid - init serial console */ 619 preloader_console_init(); 620 621 /* DDR initialization */ 622 spl_dram_init(); 623 624 /* Clear the BSS. */ 625 memset(__bss_start, 0, __bss_end - __bss_start); 626 627 /* load/boot image from boot device */ 628 board_init_r(NULL, 0); 629 } 630 631 #endif 632