board/softing/vining_2000/vining_2000.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2016 samtec automotive software & electronics gmbh
   4  * Copyright (C) 2017-2019 softing automotive electronics gmbH
   5  *
   6  * Author: Christoph Fritz <chf.fritz@googlemail.com>
   7  */
   8
   9 #include <init.h>
  10 #include <asm/arch/clock.h>
  11 #include <asm/arch/crm_regs.h>
  12 #include <asm/arch/iomux.h>
  13 #include <asm/arch/imx-regs.h>
  14 #include <asm/arch/mx6-pins.h>
  15 #include <asm/arch/sys_proto.h>
  16 #include <asm/gpio.h>
  17 #include <asm/mach-imx/iomux-v3.h>
  18 #include <asm/io.h>
  19 #include <asm/mach-imx/mxc_i2c.h>
  20 #include <env.h>
  21 #include <linux/sizes.h>
  22 #include <common.h>
  23 #include <fsl_esdhc_imx.h>
  24 #include <mmc.h>
  25 #include <i2c.h>
  26 #include <miiphy.h>
  27 #include <netdev.h>
  28 #include <power/pmic.h>
  29 #include <power/pfuze100_pmic.h>
  30 #include <usb.h>
  31 #include <usb/ehci-ci.h>
  32 #include <pwm.h>
  33 #include <wait_bit.h>
  34
  35 DECLARE_GLOBAL_DATA_PTR;
  36
  37 #define UART_PAD_CTRL  (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP |     \
  38         PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |   \
  39         PAD_CTL_SRE_FAST)
  40
  41 #define ENET_PAD_CTRL  (PAD_CTL_PUS_100K_UP | PAD_CTL_PKE |     \
  42         PAD_CTL_SPEED_HIGH | PAD_CTL_DSE_48ohm |                \
  43         PAD_CTL_SRE_FAST)
  44
  45 #define ENET_CLK_PAD_CTRL  PAD_CTL_DSE_34ohm
  46
  47 #define ENET_RX_PAD_CTRL  (PAD_CTL_PKE |                        \
  48         PAD_CTL_PUS_100K_DOWN | PAD_CTL_SPEED_HIGH |            \
  49         PAD_CTL_SRE_FAST)
  50
  51 #define I2C_PAD_CTRL  (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP |      \
  52         PAD_CTL_PKE | PAD_CTL_ODE | PAD_CTL_SPEED_MED |         \
  53         PAD_CTL_DSE_40ohm)
  54
  55 #define USDHC_CLK_PAD_CTRL  (PAD_CTL_HYS | PAD_CTL_SPEED_MED |  \
  56         PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST)
  57
  58 #define USDHC_PAD_CTRL  (PAD_CTL_HYS | PAD_CTL_PUS_47K_UP |     \
  59         PAD_CTL_PKE |  PAD_CTL_SPEED_MED | PAD_CTL_DSE_80ohm |  \
  60         PAD_CTL_SRE_FAST)
  61
  62 #define USDHC_RESET_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_47K_UP |    \
  63         PAD_CTL_PKE |  PAD_CTL_SPEED_MED | PAD_CTL_DSE_80ohm)
  64
  65 #define GPIO_PAD_CTRL  (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP |     \
  66         PAD_CTL_PKE)
  67
  68 int dram_init(void)
  69 {
  70         gd->ram_size = imx_ddr_size();
  71
  72         return 0;
  73 }
  74
  75 static iomux_v3_cfg_t const pwm_led_pads[] = {
  76         MX6_PAD_RGMII2_RD2__PWM2_OUT | MUX_PAD_CTRL(NO_PAD_CTRL), /* green */
  77         MX6_PAD_RGMII2_TD2__PWM6_OUT | MUX_PAD_CTRL(NO_PAD_CTRL), /* red */
  78         MX6_PAD_RGMII2_RD3__PWM1_OUT | MUX_PAD_CTRL(NO_PAD_CTRL), /* blue */
  79 };
  80
  81 static int board_net_init(void)
  82 {
  83         struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
  84         unsigned char eth1addr[6];
  85         int ret;
  86
  87         /* just to get second mac address */
  88         imx_get_mac_from_fuse(1, eth1addr);
  89         if (!env_get("eth1addr") && is_valid_ethaddr(eth1addr))
  90                 eth_env_set_enetaddr("eth1addr", eth1addr);
  91
  92         /*
  93          * Generate phy reference clock via pin IOMUX ENET_REF_CLK1/2 by erasing
  94          * ENET1/2_TX_CLK_DIR gpr1[14:13], so that reference clock is driven by
  95          * ref_enetpll0/1 and enable ENET1/2_TX_CLK output driver.
  96          */
  97         clrsetbits_le32(&iomuxc_regs->gpr[1],
  98                         IOMUX_GPR1_FEC1_CLOCK_MUX2_SEL_MASK |
  99                         IOMUX_GPR1_FEC2_CLOCK_MUX2_SEL_MASK,
 100                         IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK |
 101                         IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);
 102
 103         ret = enable_fec_anatop_clock(0, ENET_50MHZ);
 104         if (ret)
 105                 goto eth_fail;
 106
 107         ret = enable_fec_anatop_clock(1, ENET_50MHZ);
 108         if (ret)
 109                 goto eth_fail;
 110
 111         return ret;
 112
 113 eth_fail:
 114         printf("FEC MXC: %s:failed (%i)\n", __func__, ret);
 115         return ret;
 116 }
 117
 118 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
 119 /* I2C1 for PMIC */
 120 static struct i2c_pads_info i2c_pad_info1 = {
 121         .scl = {
 122                 .i2c_mode = MX6_PAD_GPIO1_IO00__I2C1_SCL | PC,
 123                 .gpio_mode = MX6_PAD_GPIO1_IO00__GPIO1_IO_0 | PC,
 124                 .gp = IMX_GPIO_NR(1, 0),
 125         },
 126         .sda = {
 127                 .i2c_mode = MX6_PAD_GPIO1_IO01__I2C1_SDA | PC,
 128                 .gpio_mode = MX6_PAD_GPIO1_IO01__GPIO1_IO_1 | PC,
 129                 .gp = IMX_GPIO_NR(1, 1),
 130         },
 131 };
 132
 133 static struct pmic *pfuze_init(unsigned char i2cbus)
 134 {
 135         struct pmic *p;
 136         int ret;
 137         u32 reg;
 138
 139         ret = power_pfuze100_init(i2cbus);
 140         if (ret)
 141                 return NULL;
 142
 143         p = pmic_get("PFUZE100");
 144         ret = pmic_probe(p);
 145         if (ret)
 146                 return NULL;
 147
 148         pmic_reg_read(p, PFUZE100_DEVICEID, &reg);
 149         printf("PMIC:  PFUZE100 ID=0x%02x\n", reg);
 150
 151         /* Set SW1AB stanby volage to 0.975V */
 152         pmic_reg_read(p, PFUZE100_SW1ABSTBY, &reg);
 153         reg &= ~SW1x_STBY_MASK;
 154         reg |= SW1x_0_975V;
 155         pmic_reg_write(p, PFUZE100_SW1ABSTBY, reg);
 156
 157         /* Set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
 158         pmic_reg_read(p, PFUZE100_SW1ABCONF, &reg);
 159         reg &= ~SW1xCONF_DVSSPEED_MASK;
 160         reg |= SW1xCONF_DVSSPEED_4US;
 161         pmic_reg_write(p, PFUZE100_SW1ABCONF, reg);
 162
 163         /* Set SW1C standby voltage to 0.975V */
 164         pmic_reg_read(p, PFUZE100_SW1CSTBY, &reg);
 165         reg &= ~SW1x_STBY_MASK;
 166         reg |= SW1x_0_975V;
 167         pmic_reg_write(p, PFUZE100_SW1CSTBY, reg);
 168
 169         /* Set SW1C/VDDSOC step ramp up time from 16us to 4us/25mV */
 170         pmic_reg_read(p, PFUZE100_SW1CCONF, &reg);
 171         reg &= ~SW1xCONF_DVSSPEED_MASK;
 172         reg |= SW1xCONF_DVSSPEED_4US;
 173         pmic_reg_write(p, PFUZE100_SW1CCONF, reg);
 174
 175         return p;
 176 }
 177
 178 static int pfuze_mode_init(struct pmic *p, u32 mode)
 179 {
 180         unsigned char offset, i, switch_num;
 181         u32 id;
 182         int ret;
 183
 184         pmic_reg_read(p, PFUZE100_DEVICEID, &id);
 185         id = id & 0xf;
 186
 187         if (id == 0) {
 188                 switch_num = 6;
 189                 offset = PFUZE100_SW1CMODE;
 190         } else if (id == 1) {
 191                 switch_num = 4;
 192                 offset = PFUZE100_SW2MODE;
 193         } else {
 194                 printf("Not supported, id=%d\n", id);
 195                 return -EINVAL;
 196         }
 197
 198         ret = pmic_reg_write(p, PFUZE100_SW1ABMODE, mode);
 199         if (ret < 0) {
 200                 printf("Set SW1AB mode error!\n");
 201                 return ret;
 202         }
 203
 204         for (i = 0; i < switch_num - 1; i++) {
 205                 ret = pmic_reg_write(p, offset + i * SWITCH_SIZE, mode);
 206                 if (ret < 0) {
 207                         printf("Set switch 0x%x mode error!\n",
 208                                offset + i * SWITCH_SIZE);
 209                         return ret;
 210                 }
 211         }
 212
 213         return ret;
 214 }
 215
 216 int power_init_board(void)
 217 {
 218         struct pmic *p;
 219         int ret;
 220
 221         p = pfuze_init(I2C_PMIC);
 222         if (!p)
 223                 return -ENODEV;
 224
 225         ret = pfuze_mode_init(p, APS_PFM);
 226         if (ret < 0)
 227                 return ret;
 228
 229         set_ldo_voltage(LDO_ARM, 1175); /* Set VDDARM to 1.175V */
 230         set_ldo_voltage(LDO_SOC, 1175); /* Set VDDSOC to 1.175V */
 231
 232         return 0;
 233 }
 234
 235 #ifdef CONFIG_USB_EHCI_MX6
 236 static iomux_v3_cfg_t const usb_otg_pads[] = {
 237         /* OGT1 */
 238         MX6_PAD_GPIO1_IO09__USB_OTG1_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
 239         MX6_PAD_GPIO1_IO10__ANATOP_OTG1_ID | MUX_PAD_CTRL(NO_PAD_CTRL),
 240         /* OTG2 */
 241         MX6_PAD_GPIO1_IO12__USB_OTG2_PWR | MUX_PAD_CTRL(NO_PAD_CTRL)
 242 };
 243
 244 static void setup_iomux_usb(void)
 245 {
 246         imx_iomux_v3_setup_multiple_pads(usb_otg_pads,
 247                                          ARRAY_SIZE(usb_otg_pads));
 248 }
 249
 250 int board_usb_phy_mode(int port)
 251 {
 252         if (port == 1)
 253                 return USB_INIT_HOST;
 254         else
 255                 return usb_phy_mode(port);
 256 }
 257 #endif
 258
 259 #ifdef CONFIG_PWM_IMX
 260 static int set_pwm_leds(void)
 261 {
 262         int ret;
 263
 264         imx_iomux_v3_setup_multiple_pads(pwm_led_pads,
 265                                          ARRAY_SIZE(pwm_led_pads));
 266         /* enable backlight PWM 2, green LED */
 267         ret = pwm_init(1, 0, 0);
 268         if (ret)
 269                 goto error;
 270         /* duty cycle 200ns, period: 8000ns */
 271         ret = pwm_config(1, 200, 8000);
 272         if (ret)
 273                 goto error;
 274         ret = pwm_enable(1);
 275         if (ret)
 276                 goto error;
 277
 278         /* enable backlight PWM 1, blue LED */
 279         ret = pwm_init(0, 0, 0);
 280         if (ret)
 281                 goto error;
 282         /* duty cycle 200ns, period: 8000ns */
 283         ret = pwm_config(0, 200, 8000);
 284         if (ret)
 285                 goto error;
 286         ret = pwm_enable(0);
 287         if (ret)
 288                 goto error;
 289
 290         /* enable backlight PWM 6, red LED */
 291         ret = pwm_init(5, 0, 0);
 292         if (ret)
 293                 goto error;
 294         /* duty cycle 200ns, period: 8000ns */
 295         ret = pwm_config(5, 200, 8000);
 296         if (ret)
 297                 goto error;
 298         ret = pwm_enable(5);
 299
 300 error:
 301         return ret;
 302 }
 303 #else
 304 static int set_pwm_leds(void)
 305 {
 306         return 0;
 307 }
 308 #endif
 309
 310 #define ADCx_HC0        0x00
 311 #define ADCx_HS         0x08
 312 #define ADCx_HS_C0      BIT(0)
 313 #define ADCx_R0         0x0c
 314 #define ADCx_CFG        0x14
 315 #define ADCx_CFG_SWMODE 0x308
 316 #define ADCx_GC         0x18
 317 #define ADCx_GC_CAL     BIT(7)
 318
 319 static int read_adc(u32 *val)
 320 {
 321         int ret;
 322         void __iomem *b = map_physmem(ADC1_BASE_ADDR, 0x100, MAP_NOCACHE);
 323
 324         /* use software mode */
 325         writel(ADCx_CFG_SWMODE, b + ADCx_CFG);
 326
 327         /* start auto calibration */
 328         setbits_le32(b + ADCx_GC, ADCx_GC_CAL);
 329         ret = wait_for_bit_le32(b + ADCx_GC, ADCx_GC_CAL, ADCx_GC_CAL, 10, 0);
 330         if (ret)
 331                 goto adc_exit;
 332
 333         /* start conversion */
 334         writel(0, b + ADCx_HC0);
 335
 336         /* wait for conversion */
 337         ret = wait_for_bit_le32(b + ADCx_HS, ADCx_HS_C0, ADCx_HS_C0, 10, 0);
 338         if (ret)
 339                 goto adc_exit;
 340
 341         /* read result */
 342         *val = readl(b + ADCx_R0);
 343
 344 adc_exit:
 345         if (ret)
 346                 printf("ADC failure (ret=%i)\n", ret);
 347         unmap_physmem(b, MAP_NOCACHE);
 348         return ret;
 349 }
 350
 351 #define VAL_UPPER       2498
 352 #define VAL_LOWER       1550
 353
 354 static int set_pin_state(void)
 355 {
 356         u32 val;
 357         int ret;
 358
 359         ret = read_adc(&val);
 360         if (ret)
 361                 return ret;
 362
 363         if (val >= VAL_UPPER)
 364                 env_set("pin_state", "connected");
 365         else if (val < VAL_UPPER && val > VAL_LOWER)
 366                 env_set("pin_state", "open");
 367         else
 368                 env_set("pin_state", "button");
 369
 370         return ret;
 371 }
 372
 373 int board_late_init(void)
 374 {
 375         int ret;
 376
 377         ret = set_pwm_leds();
 378         if (ret)
 379                 return ret;
 380
 381         ret = set_pin_state();
 382
 383         return ret;
 384 }
 385
 386 int board_early_init_f(void)
 387 {
 388         setup_iomux_usb();
 389
 390         return 0;
 391 }
 392
 393 int board_init(void)
 394 {
 395         /* Address of boot parameters */
 396         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 397
 398 #ifdef CONFIG_SYS_I2C_MXC
 399         setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
 400 #endif
 401
 402         return board_net_init();
 403 }
 404
 405 int checkboard(void)
 406 {
 407         puts("Board: VIN|ING 2000\n");
 408
 409         return 0;
 410 }
 411
 412 #define PCIE_PHY_PUP_REQ                BIT(7)
 413
 414 void board_preboot_os(void)
 415 {
 416         struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
 417         struct gpc *gpc_regs = (struct gpc *)GPC_BASE_ADDR;
 418
 419         /* Bring the PCI power domain up, so that old vendorkernel works. */
 420         setbits_le32(&iomuxc_regs->gpr[12], IOMUXC_GPR12_TEST_POWERDOWN);
 421         setbits_le32(&iomuxc_regs->gpr[5], IOMUXC_GPR5_PCIE_BTNRST);
 422         setbits_le32(&gpc_regs->cntr, PCIE_PHY_PUP_REQ);
 423 }
 424
 425 #ifdef CONFIG_SPL_BUILD
 426 #include <linux/libfdt.h>
 427 #include <spl.h>
 428 #include <asm/arch/mx6-ddr.h>
 429
 430 static struct fsl_esdhc_cfg usdhc_cfg = { USDHC4_BASE_ADDR };
 431
 432 static iomux_v3_cfg_t const pcie_pads[] = {
 433         MX6_PAD_NAND_DATA02__GPIO4_IO_6 | MUX_PAD_CTRL(GPIO_PAD_CTRL),
 434 };
 435
 436 static iomux_v3_cfg_t const uart_pads[] = {
 437         MX6_PAD_GPIO1_IO04__UART1_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
 438         MX6_PAD_GPIO1_IO05__UART1_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
 439 };
 440
 441 static iomux_v3_cfg_t const usdhc4_pads[] = {
 442         MX6_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 443         MX6_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 444         MX6_PAD_SD4_DATA0__USDHC4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 445         MX6_PAD_SD4_DATA1__USDHC4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 446         MX6_PAD_SD4_DATA2__USDHC4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 447         MX6_PAD_SD4_DATA3__USDHC4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 448         MX6_PAD_SD4_DATA4__USDHC4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 449         MX6_PAD_SD4_DATA5__USDHC4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 450         MX6_PAD_SD4_DATA6__USDHC4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 451         MX6_PAD_SD4_DATA7__USDHC4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 452 };
 453
 454 static void vining2000_spl_setup_iomux_pcie(void)
 455 {
 456         imx_iomux_v3_setup_multiple_pads(pcie_pads, ARRAY_SIZE(pcie_pads));
 457 }
 458
 459 static void vining2000_spl_setup_iomux_uart(void)
 460 {
 461         imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
 462 }
 463
 464 int board_mmc_init(bd_t *bis)
 465 {
 466         struct src *src_regs = (struct src *)SRC_BASE_ADDR;
 467         u32 val;
 468         u32 port;
 469
 470         val = readl(&src_regs->sbmr1);
 471
 472         if ((val & 0xc0) != 0x40) {
 473                 printf("Not boot from USDHC!\n");
 474                 return -EINVAL;
 475         }
 476
 477         port = (val >> 11) & 0x3;
 478         printf("port %d\n", port);
 479         switch (port) {
 480         case 3:
 481                 imx_iomux_v3_setup_multiple_pads(
 482                         usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
 483                 usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
 484                 usdhc_cfg.esdhc_base = USDHC4_BASE_ADDR;
 485                 break;
 486         }
 487
 488         gd->arch.sdhc_clk = usdhc_cfg.sdhc_clk;
 489         return fsl_esdhc_initialize(bis, &usdhc_cfg);
 490 }
 491
 492 int board_mmc_getcd(struct mmc *mmc)
 493 {
 494         return 1;
 495 }
 496
 497 const struct mx6sx_iomux_ddr_regs mx6_ddr_ioregs = {
 498         .dram_dqm0              = 0x00000028,
 499         .dram_dqm1              = 0x00000028,
 500         .dram_dqm2              = 0x00000028,
 501         .dram_dqm3              = 0x00000028,
 502         .dram_ras               = 0x00000028,
 503         .dram_cas               = 0x00000028,
 504         .dram_odt0              = 0x00000028,
 505         .dram_odt1              = 0x00000028,
 506         .dram_sdba2             = 0x00000000,
 507         .dram_sdcke0            = 0x00003000,
 508         .dram_sdcke1            = 0x00003000,
 509         .dram_sdclk_0           = 0x00000030,
 510         .dram_sdqs0             = 0x00000028,
 511         .dram_sdqs1             = 0x00000028,
 512         .dram_sdqs2             = 0x00000028,
 513         .dram_sdqs3             = 0x00000028,
 514         .dram_reset             = 0x00000028,
 515 };
 516
 517 const struct mx6sx_iomux_grp_regs mx6_grp_ioregs = {
 518         .grp_addds              = 0x00000028,
 519         .grp_b0ds               = 0x00000028,
 520         .grp_b1ds               = 0x00000028,
 521         .grp_b2ds               = 0x00000028,
 522         .grp_b3ds               = 0x00000028,
 523         .grp_ctlds              = 0x00000028,
 524         .grp_ddr_type           = 0x000c0000,
 525         .grp_ddrmode            = 0x00020000,
 526         .grp_ddrmode_ctl        = 0x00020000,
 527         .grp_ddrpke             = 0x00000000,
 528 };
 529
 530 const struct mx6_mmdc_calibration mx6_mmcd_calib = {
 531         .p0_mpwldectrl0         = 0x0022001C,
 532         .p0_mpwldectrl1         = 0x001F001A,
 533         .p0_mpdgctrl0           = 0x01380134,
 534         .p0_mpdgctrl1           = 0x0124011C,
 535         .p0_mprddlctl           = 0x42404444,
 536         .p0_mpwrdlctl           = 0x36383C38,
 537 };
 538
 539 static struct mx6_ddr3_cfg mem_ddr = {
 540         .mem_speed      = 1600,
 541         .density        = 4,
 542         .width          = 32,
 543         .banks          = 8,
 544         .rowaddr        = 15,
 545         .coladdr        = 10,
 546         .pagesz         = 2,
 547         .trcd           = 1391,
 548         .trcmin         = 4875,
 549         .trasmin        = 3500,
 550 };
 551
 552 static void ccgr_init(void)
 553 {
 554         struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
 555
 556         writel(0xF000000F, &ccm->CCGR0);        /* AIPS_TZ{1,2,3} */
 557         writel(0x303C0000, &ccm->CCGR1);        /* GPT, OCRAM */
 558         writel(0x00FFFCC0, &ccm->CCGR2);        /* IPMUX, I2C1, I2C3 */
 559         writel(0x3F300030, &ccm->CCGR3);        /* OCRAM, MMDC, ENET */
 560         writel(0x0000C003, &ccm->CCGR4);        /* PCI, PL301 */
 561         writel(0x0F0330C3, &ccm->CCGR5);        /* UART, ROM */
 562         writel(0x00000F00, &ccm->CCGR6);        /* SDHI4, EIM */
 563 }
 564
 565 static void vining2000_spl_dram_init(void)
 566 {
 567         struct mx6_ddr_sysinfo sysinfo = {
 568                 .dsize          = mem_ddr.width / 32,
 569                 .cs_density     = 24,
 570                 .ncs            = 1,
 571                 .cs1_mirror     = 0,
 572                 .rtt_wr         = 1,    /* RTT_wr = RZQ/4 */
 573                 .rtt_nom        = 1,    /* RTT_Nom = RZQ/4 */
 574                 .walat          = 1,    /* Write additional latency */
 575                 .ralat          = 5,    /* Read additional latency */
 576                 .mif3_mode      = 3,    /* Command prediction working mode */
 577                 .bi_on          = 1,    /* Bank interleaving enabled */
 578                 .sde_to_rst     = 0x10, /* 14 cycles, 200us (JEDEC default) */
 579                 .rst_to_cke     = 0x23, /* 33 cycles, 500us (JEDEC default) */
 580                 .ddr_type       = DDR_TYPE_DDR3,
 581                 .refsel         = 1,    /* Refresh cycles at 32KHz */
 582                 .refr           = 7,    /* 8 refresh commands per refresh cycle */
 583         };
 584
 585         mx6sx_dram_iocfg(mem_ddr.width, &mx6_ddr_ioregs, &mx6_grp_ioregs);
 586         mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
 587
 588         /* Perform DDR DRAM calibration */
 589         udelay(100);
 590         mmdc_do_write_level_calibration(&sysinfo);
 591         mmdc_do_dqs_calibration(&sysinfo);
 592 }
 593
 594 void board_init_f(ulong dummy)
 595 {
 596         /* setup AIPS and disable watchdog */
 597         arch_cpu_init();
 598
 599         ccgr_init();
 600
 601         /* iomux setup */
 602         vining2000_spl_setup_iomux_pcie();
 603         vining2000_spl_setup_iomux_uart();
 604
 605         /* setup GP timer */
 606         timer_init();
 607
 608         /* reset the PCIe device */
 609         gpio_set_value(IMX_GPIO_NR(4, 6), 1);
 610         udelay(50);
 611         gpio_set_value(IMX_GPIO_NR(4, 6), 0);
 612
 613         /* UART clocks enabled and gd valid - init serial console */
 614         preloader_console_init();
 615
 616         /* DDR initialization */
 617         vining2000_spl_dram_init();
 618
 619         /* Clear the BSS. */
 620         memset(__bss_start, 0, __bss_end - __bss_start);
 621
 622         /* load/boot image from boot device */
 623         board_init_r(NULL, 0);
 624 }
 625 #endif