1 /* 2 * Copyright (C) 2016 Stefano Babic <sbabic@denx.de> 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 /* 8 * Please note: there are two version of the board 9 * one with NAND and the other with eMMC. 10 * Both NAND and eMMC cannot be set because they share the 11 * same pins (SD4) 12 */ 13 #include <common.h> 14 #include <asm/io.h> 15 #include <asm/arch/clock.h> 16 #include <asm/arch/imx-regs.h> 17 #include <asm/arch/crm_regs.h> 18 #include <asm/arch/mx6-ddr.h> 19 #include <asm/arch/iomux.h> 20 #include <asm/arch/mx6-pins.h> 21 #include <asm/imx-common/iomux-v3.h> 22 #include <asm/imx-common/boot_mode.h> 23 #include <asm/imx-common/mxc_i2c.h> 24 #include <asm/imx-common/spi.h> 25 #include <linux/errno.h> 26 #include <asm/gpio.h> 27 #include <mmc.h> 28 #include <i2c.h> 29 #include <fsl_esdhc.h> 30 #include <nand.h> 31 #include <miiphy.h> 32 #include <netdev.h> 33 #include <asm/arch/sys_proto.h> 34 #include <asm/sections.h> 35 36 DECLARE_GLOBAL_DATA_PTR; 37 38 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 39 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ 40 PAD_CTL_SRE_FAST | PAD_CTL_HYS) 41 42 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \ 43 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \ 44 PAD_CTL_SRE_FAST | PAD_CTL_HYS) 45 46 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 47 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS) 48 49 #define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \ 50 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) 51 52 #define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 53 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ 54 PAD_CTL_ODE | PAD_CTL_SRE_FAST) 55 56 #define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL) 57 58 #define ASRC_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \ 59 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) 60 61 #define NAND_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ 62 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) 63 64 #define ENET_PHY_RESET_GPIO IMX_GPIO_NR(1, 14) 65 #define USDHC1_CD_GPIO IMX_GPIO_NR(6, 31) 66 #define USER_LED IMX_GPIO_NR(1, 4) 67 #define IMX6Q_DRIVE_STRENGTH 0x30 68 69 int dram_init(void) 70 { 71 gd->ram_size = imx_ddr_size(); 72 return 0; 73 } 74 75 void board_turn_off_led(void) 76 { 77 gpio_direction_output(USER_LED, 0); 78 } 79 80 static iomux_v3_cfg_t const uart1_pads[] = { 81 MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 82 MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 83 }; 84 85 static iomux_v3_cfg_t const enet_pads[] = { 86 MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL), 87 MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL), 88 MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL), 89 MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 90 MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 91 MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 92 MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 93 MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), 94 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL), 95 MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL), 96 MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 97 MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 98 MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 99 MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 100 MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), 101 MX6_PAD_SD2_DAT1__GPIO1_IO14 | MUX_PAD_CTRL(NO_PAD_CTRL), 102 }; 103 104 static iomux_v3_cfg_t const ecspi1_pads[] = { 105 MX6_PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL), 106 MX6_PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL), 107 MX6_PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL), 108 MX6_PAD_EIM_D19__GPIO3_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL), 109 }; 110 111 /* NAND */ 112 static iomux_v3_cfg_t const nfc_pads[] = { 113 MX6_PAD_NANDF_CLE__NAND_CLE | MUX_PAD_CTRL(NAND_PAD_CTRL), 114 MX6_PAD_NANDF_ALE__NAND_ALE | MUX_PAD_CTRL(NAND_PAD_CTRL), 115 MX6_PAD_NANDF_WP_B__NAND_WP_B | MUX_PAD_CTRL(NAND_PAD_CTRL), 116 MX6_PAD_NANDF_RB0__NAND_READY_B | MUX_PAD_CTRL(NAND_PAD_CTRL), 117 MX6_PAD_NANDF_CS0__NAND_CE0_B | MUX_PAD_CTRL(NAND_PAD_CTRL), 118 MX6_PAD_NANDF_CS1__NAND_CE1_B | MUX_PAD_CTRL(NAND_PAD_CTRL), 119 MX6_PAD_NANDF_CS2__NAND_CE2_B | MUX_PAD_CTRL(NAND_PAD_CTRL), 120 MX6_PAD_NANDF_CS3__NAND_CE3_B | MUX_PAD_CTRL(NAND_PAD_CTRL), 121 MX6_PAD_SD4_CMD__NAND_RE_B | MUX_PAD_CTRL(NAND_PAD_CTRL), 122 MX6_PAD_SD4_CLK__NAND_WE_B | MUX_PAD_CTRL(NAND_PAD_CTRL), 123 MX6_PAD_NANDF_D0__NAND_DATA00 | MUX_PAD_CTRL(NAND_PAD_CTRL), 124 MX6_PAD_NANDF_D1__NAND_DATA01 | MUX_PAD_CTRL(NAND_PAD_CTRL), 125 MX6_PAD_NANDF_D2__NAND_DATA02 | MUX_PAD_CTRL(NAND_PAD_CTRL), 126 MX6_PAD_NANDF_D3__NAND_DATA03 | MUX_PAD_CTRL(NAND_PAD_CTRL), 127 MX6_PAD_NANDF_D4__NAND_DATA04 | MUX_PAD_CTRL(NAND_PAD_CTRL), 128 MX6_PAD_NANDF_D5__NAND_DATA05 | MUX_PAD_CTRL(NAND_PAD_CTRL), 129 MX6_PAD_NANDF_D6__NAND_DATA06 | MUX_PAD_CTRL(NAND_PAD_CTRL), 130 MX6_PAD_NANDF_D7__NAND_DATA07 | MUX_PAD_CTRL(NAND_PAD_CTRL), 131 MX6_PAD_SD4_DAT0__NAND_DQS | MUX_PAD_CTRL(NAND_PAD_CTRL), 132 }; 133 134 135 /* GPIOS */ 136 static iomux_v3_cfg_t const gpios_pads[] = { 137 }; 138 139 static struct i2c_pads_info i2c_pad_info2 = { 140 .scl = { 141 .i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | I2C_PAD, 142 .gpio_mode = MX6_PAD_GPIO_5__GPIO1_IO05 | I2C_PAD, 143 .gp = IMX_GPIO_NR(1, 5) 144 }, 145 .sda = { 146 .i2c_mode = MX6_PAD_GPIO_6__I2C3_SDA | I2C_PAD, 147 .gpio_mode = MX6_PAD_GPIO_6__GPIO1_IO06 | I2C_PAD, 148 .gp = IMX_GPIO_NR(1, 6) 149 } 150 }; 151 152 static struct fsl_esdhc_cfg usdhc_cfg[] = { 153 {.esdhc_base = USDHC1_BASE_ADDR, 154 .max_bus_width = 4}, 155 #ifndef CONFIG_CMD_NAND 156 {USDHC4_BASE_ADDR}, 157 #endif 158 }; 159 160 static iomux_v3_cfg_t const usdhc1_pads[] = { 161 MX6_PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 162 MX6_PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 163 MX6_PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 164 MX6_PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 165 MX6_PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 166 MX6_PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 167 MX6_PAD_EIM_BCLK__GPIO6_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */ 168 }; 169 170 #ifndef CONFIG_CMD_NAND 171 static iomux_v3_cfg_t const usdhc4_pads[] = { 172 MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 173 MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 174 MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 175 MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 176 MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 177 MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 178 MX6_PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 179 MX6_PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 180 MX6_PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 181 MX6_PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 182 }; 183 #endif 184 185 int board_mmc_get_env_dev(int devno) 186 { 187 return devno - 1; 188 } 189 190 int board_mmc_getcd(struct mmc *mmc) 191 { 192 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; 193 int ret = 0; 194 195 switch (cfg->esdhc_base) { 196 case USDHC1_BASE_ADDR: 197 ret = !gpio_get_value(USDHC1_CD_GPIO); 198 break; 199 case USDHC4_BASE_ADDR: 200 ret = 1; /* eMMC/uSDHC4 is always present */ 201 break; 202 } 203 204 return ret; 205 } 206 207 int board_mmc_init(bd_t *bis) 208 { 209 #ifndef CONFIG_SPL_BUILD 210 int ret; 211 int i; 212 213 for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) { 214 switch (i) { 215 case 0: 216 imx_iomux_v3_setup_multiple_pads( 217 usdhc1_pads, ARRAY_SIZE(usdhc1_pads)); 218 gpio_direction_input(USDHC1_CD_GPIO); 219 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); 220 break; 221 #ifndef CONFIG_CMD_NAND 222 case 1: 223 imx_iomux_v3_setup_multiple_pads( 224 usdhc4_pads, ARRAY_SIZE(usdhc4_pads)); 225 usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK); 226 break; 227 #endif 228 default: 229 printf("Warning: you configured more USDHC controllers" 230 "(%d) then supported by the board (%d)\n", 231 i + 1, CONFIG_SYS_FSL_USDHC_NUM); 232 return -EINVAL; 233 } 234 235 ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]); 236 if (ret) 237 return ret; 238 } 239 240 return 0; 241 #else 242 struct src *psrc = (struct src *)SRC_BASE_ADDR; 243 unsigned reg = readl(&psrc->sbmr1) >> 11; 244 /* 245 * Upon reading BOOT_CFG register the following map is done: 246 * Bit 11 and 12 of BOOT_CFG register can determine the current 247 * mmc port 248 * 0x1 SD1 249 * 0x2 SD2 250 * 0x3 SD4 251 */ 252 253 switch (reg & 0x3) { 254 case 0x0: 255 imx_iomux_v3_setup_multiple_pads( 256 usdhc1_pads, ARRAY_SIZE(usdhc1_pads)); 257 gpio_direction_input(USDHC1_CD_GPIO); 258 usdhc_cfg[0].esdhc_base = USDHC1_BASE_ADDR; 259 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); 260 usdhc_cfg[0].max_bus_width = 4; 261 gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk; 262 break; 263 } 264 return fsl_esdhc_initialize(bis, &usdhc_cfg[0]); 265 #endif 266 } 267 268 static void setup_iomux_uart(void) 269 { 270 imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); 271 } 272 273 static void setup_iomux_enet(void) 274 { 275 imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads)); 276 277 gpio_direction_output(ENET_PHY_RESET_GPIO, 0); 278 mdelay(10); 279 gpio_set_value(ENET_PHY_RESET_GPIO, 1); 280 mdelay(30); 281 } 282 283 static void setup_spi(void) 284 { 285 gpio_request(IMX_GPIO_NR(3, 19), "spi_cs0"); 286 gpio_direction_output(IMX_GPIO_NR(3, 19), 1); 287 288 imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads)); 289 290 enable_spi_clk(true, 0); 291 } 292 293 #ifdef CONFIG_CMD_NAND 294 static void setup_gpmi_nand(void) 295 { 296 struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; 297 298 /* config gpmi nand iomux */ 299 imx_iomux_v3_setup_multiple_pads(nfc_pads, ARRAY_SIZE(nfc_pads)); 300 301 /* gate ENFC_CLK_ROOT clock first,before clk source switch */ 302 clrbits_le32(&mxc_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK); 303 304 /* config gpmi and bch clock to 100 MHz */ 305 clrsetbits_le32(&mxc_ccm->cs2cdr, 306 MXC_CCM_CS2CDR_ENFC_CLK_PODF_MASK | 307 MXC_CCM_CS2CDR_ENFC_CLK_PRED_MASK | 308 MXC_CCM_CS2CDR_ENFC_CLK_SEL_MASK, 309 MXC_CCM_CS2CDR_ENFC_CLK_PODF(0) | 310 MXC_CCM_CS2CDR_ENFC_CLK_PRED(3) | 311 MXC_CCM_CS2CDR_ENFC_CLK_SEL(3)); 312 313 /* enable ENFC_CLK_ROOT clock */ 314 setbits_le32(&mxc_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK); 315 316 /* enable gpmi and bch clock gating */ 317 setbits_le32(&mxc_ccm->CCGR4, 318 MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK | 319 MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK | 320 MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK | 321 MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK | 322 MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_OFFSET); 323 324 /* enable apbh clock gating */ 325 setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK); 326 } 327 #endif 328 329 int board_spi_cs_gpio(unsigned bus, unsigned cs) 330 { 331 if (bus != 0 || (cs != 0)) 332 return -EINVAL; 333 334 return IMX_GPIO_NR(3, 19); 335 } 336 337 int board_eth_init(bd_t *bis) 338 { 339 setup_iomux_enet(); 340 341 return cpu_eth_init(bis); 342 } 343 344 int board_early_init_f(void) 345 { 346 setup_iomux_uart(); 347 348 return 0; 349 } 350 351 int board_init(void) 352 { 353 /* address of boot parameters */ 354 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; 355 356 #ifdef CONFIG_SYS_I2C_MXC 357 setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2); 358 #endif 359 360 #ifdef CONFIG_MXC_SPI 361 setup_spi(); 362 #endif 363 364 #ifdef CONFIG_CMD_NAND 365 setup_gpmi_nand(); 366 #endif 367 return 0; 368 } 369 370 371 #ifdef CONFIG_CMD_BMODE 372 /* 373 * BOOT_CFG1, BOOT_CFG2, BOOT_CFG3, BOOT_CFG4 374 * see Table 8-11 and Table 5-9 375 * BOOT_CFG1[7] = 1 (boot from NAND) 376 * BOOT_CFG1[5] = 0 - raw NAND 377 * BOOT_CFG1[4] = 0 - default pad settings 378 * BOOT_CFG1[3:2] = 00 - devices = 1 379 * BOOT_CFG1[1:0] = 00 - Row Address Cycles = 3 380 * BOOT_CFG2[4:3] = 00 - Boot Search Count = 2 381 * BOOT_CFG2[2:1] = 01 - Pages In Block = 64 382 * BOOT_CFG2[0] = 0 - Reset time 12ms 383 */ 384 static const struct boot_mode board_boot_modes[] = { 385 /* NAND: 64pages per block, 3 row addr cycles, 2 copies of FCB/DBBT */ 386 {"nand", MAKE_CFGVAL(0x80, 0x02, 0x00, 0x00)}, 387 {"mmc0", MAKE_CFGVAL(0x40, 0x20, 0x00, 0x00)}, 388 {NULL, 0}, 389 }; 390 #endif 391 392 int board_late_init(void) 393 { 394 #ifdef CONFIG_CMD_BMODE 395 add_board_boot_modes(board_boot_modes); 396 #endif 397 398 return 0; 399 } 400 401 #ifdef CONFIG_SPL_BUILD 402 #include <spl.h> 403 #include <libfdt.h> 404 405 static const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = { 406 .dram_sdclk_0 = 0x00000030, 407 .dram_sdclk_1 = 0x00000030, 408 .dram_cas = 0x00000030, 409 .dram_ras = 0x00000030, 410 .dram_reset = 0x00000030, 411 .dram_sdcke0 = 0x00000030, 412 .dram_sdcke1 = 0x00000030, 413 .dram_sdba2 = 0x00000000, 414 .dram_sdodt0 = 0x00000030, 415 .dram_sdodt1 = 0x00000030, 416 .dram_sdqs0 = 0x00000030, 417 .dram_sdqs1 = 0x00000030, 418 .dram_sdqs2 = 0x00000030, 419 .dram_sdqs3 = 0x00000030, 420 .dram_sdqs4 = 0x00000030, 421 .dram_sdqs5 = 0x00000030, 422 .dram_sdqs6 = 0x00000030, 423 .dram_sdqs7 = 0x00000030, 424 .dram_dqm0 = 0x00000030, 425 .dram_dqm1 = 0x00000030, 426 .dram_dqm2 = 0x00000030, 427 .dram_dqm3 = 0x00000030, 428 .dram_dqm4 = 0x00000030, 429 .dram_dqm5 = 0x00000030, 430 .dram_dqm6 = 0x00000030, 431 .dram_dqm7 = 0x00000030, 432 }; 433 434 static const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = { 435 .grp_ddr_type = 0x000C0000, 436 .grp_ddrmode_ctl = 0x00020000, 437 .grp_ddrpke = 0x00000000, 438 .grp_addds = IMX6Q_DRIVE_STRENGTH, 439 .grp_ctlds = IMX6Q_DRIVE_STRENGTH, 440 .grp_ddrmode = 0x00020000, 441 .grp_b0ds = IMX6Q_DRIVE_STRENGTH, 442 .grp_b1ds = IMX6Q_DRIVE_STRENGTH, 443 .grp_b2ds = IMX6Q_DRIVE_STRENGTH, 444 .grp_b3ds = IMX6Q_DRIVE_STRENGTH, 445 .grp_b4ds = IMX6Q_DRIVE_STRENGTH, 446 .grp_b5ds = IMX6Q_DRIVE_STRENGTH, 447 .grp_b6ds = IMX6Q_DRIVE_STRENGTH, 448 .grp_b7ds = IMX6Q_DRIVE_STRENGTH, 449 }; 450 451 static const struct mx6_mmdc_calibration mx6_mmcd_calib = { 452 .p0_mpwldectrl0 = 0x00140014, 453 .p0_mpwldectrl1 = 0x000A0015, 454 .p1_mpwldectrl0 = 0x000A001E, 455 .p1_mpwldectrl1 = 0x000A0015, 456 .p0_mpdgctrl0 = 0x43080314, 457 .p0_mpdgctrl1 = 0x02680300, 458 .p1_mpdgctrl0 = 0x430C0318, 459 .p1_mpdgctrl1 = 0x03000254, 460 .p0_mprddlctl = 0x3A323234, 461 .p1_mprddlctl = 0x3E3C3242, 462 .p0_mpwrdlctl = 0x2A2E3632, 463 .p1_mpwrdlctl = 0x3C323E34, 464 }; 465 466 static struct mx6_ddr3_cfg mem_ddr = { 467 .mem_speed = 1600, 468 .density = 2, 469 .width = 16, 470 .banks = 8, 471 .rowaddr = 14, 472 .coladdr = 10, 473 .pagesz = 2, 474 .trcd = 1375, 475 .trcmin = 4875, 476 .trasmin = 3500, 477 .SRT = 1, 478 }; 479 480 static void ccgr_init(void) 481 { 482 struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; 483 484 writel(0x00C03F3F, &ccm->CCGR0); 485 writel(0x0030FC03, &ccm->CCGR1); 486 writel(0x0FFFC000, &ccm->CCGR2); 487 writel(0x3FF00000, &ccm->CCGR3); 488 writel(0x00FFF300, &ccm->CCGR4); 489 writel(0x0F0000C3, &ccm->CCGR5); 490 writel(0x000003FF, &ccm->CCGR6); 491 } 492 493 static void gpr_init(void) 494 { 495 struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR; 496 497 /* enable AXI cache for VDOA/VPU/IPU */ 498 writel(0xF00000CF, &iomux->gpr[4]); 499 /* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */ 500 writel(0x007F007F, &iomux->gpr[6]); 501 writel(0x007F007F, &iomux->gpr[7]); 502 } 503 504 505 static void spl_dram_init(void) 506 { 507 struct mx6_ddr_sysinfo sysinfo = { 508 /* width of data bus:0=16,1=32,2=64 */ 509 .dsize = 2, 510 /* config for full 4GB range so that get_mem_size() works */ 511 .cs_density = 32, /* 32Gb per CS */ 512 /* single chip select */ 513 .ncs = 1, 514 .cs1_mirror = 0, 515 .rtt_wr = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Wr = RZQ/4 */ 516 .rtt_nom = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Nom = RZQ/4 */ 517 .walat = 1, /* Write additional latency */ 518 .ralat = 5, /* Read additional latency */ 519 .mif3_mode = 3, /* Command prediction working mode */ 520 .bi_on = 1, /* Bank interleaving enabled */ 521 .sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */ 522 .rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */ 523 .ddr_type = DDR_TYPE_DDR3, 524 .refsel = 1, /* Refresh cycles at 32KHz */ 525 .refr = 7, /* 8 refresh commands per refresh cycle */ 526 }; 527 528 mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs); 529 mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr); 530 } 531 532 void board_boot_order(u32 *spl_boot_list) 533 { 534 spl_boot_list[0] = spl_boot_device(); 535 printf("Boot device %x\n", spl_boot_list[0]); 536 switch (spl_boot_list[0]) { 537 case BOOT_DEVICE_SPI: 538 spl_boot_list[1] = BOOT_DEVICE_UART; 539 break; 540 case BOOT_DEVICE_MMC1: 541 spl_boot_list[1] = BOOT_DEVICE_SPI; 542 spl_boot_list[2] = BOOT_DEVICE_UART; 543 break; 544 default: 545 printf("Boot device %x\n", spl_boot_list[0]); 546 } 547 } 548 549 void board_init_f(ulong dummy) 550 { 551 #ifdef CONFIG_CMD_NAND 552 /* Enable NAND */ 553 setup_gpmi_nand(); 554 #endif 555 556 /* setup clock gating */ 557 ccgr_init(); 558 559 /* setup AIPS and disable watchdog */ 560 arch_cpu_init(); 561 562 /* setup AXI */ 563 gpr_init(); 564 565 board_early_init_f(); 566 567 /* setup GP timer */ 568 timer_init(); 569 570 setup_spi(); 571 572 /* UART clocks enabled and gd valid - init serial console */ 573 preloader_console_init(); 574 575 /* DDR initialization */ 576 spl_dram_init(); 577 578 /* Clear the BSS. */ 579 memset(__bss_start, 0, __bss_end - __bss_start); 580 581 /* load/boot image from boot device */ 582 board_init_r(NULL, 0); 583 } 584 #endif 585