board/freescale/mx6memcal/spl.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2016 Nelson Integration, LLC
   4  * Author: Eric Nelson <eric@nelint.com>
   5  */
   6
   7 #include <common.h>
   8 #include <cpu_func.h>
   9 #include <init.h>
  10 #include <asm/global_data.h>
  11 #include <asm/io.h>
  12 #include <asm/arch/iomux.h>
  13 #include <asm/arch/clock.h>
  14 #include <asm/arch/crm_regs.h>
  15 #include <asm/arch/mx6-ddr.h>
  16 #include <asm/arch/mx6-pins.h>
  17 #include <asm/arch/sys_proto.h>
  18 #include <spl.h>
  19
  20 DECLARE_GLOBAL_DATA_PTR;
  21
  22 #define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP |                   \
  23         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |                 \
  24         PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  25
  26 static iomux_v3_cfg_t const uart_pads[] = {
  27 #ifdef CONFIG_UART2_EIM_D26_27
  28         IOMUX_PADS(PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
  29         IOMUX_PADS(PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
  30 #elif defined(CONFIG_UART1_CSI0_DAT10_11)
  31         IOMUX_PADS(PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
  32         IOMUX_PADS(PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
  33 #elif defined(CONFIG_UART1_SD3_DAT6_7)
  34         IOMUX_PADS(PAD_SD3_DAT6__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
  35         IOMUX_PADS(PAD_SD3_DAT7__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
  36 #elif defined(CONFIG_UART1_UART1)
  37         MX6_PAD_UART1_TXD__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
  38         MX6_PAD_UART1_RXD__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
  39 #else
  40 #error select UART console pads
  41 #endif
  42 };
  43
  44 #ifdef CONFIG_DDR3
  45 #define GRP_DDRTYPE     0x000C0000
  46 #else
  47 #define GRP_DDRTYPE     0x00080000
  48 #endif
  49
  50 /* all existing designs have this disabled */
  51 #define DDR_PKE         0
  52
  53 /* use Kconfig for ODT and DRIVE_STRENGTH */
  54 #define DDR_ODT \
  55         (CONFIG_DDR_ODT << 8)
  56 #define DRAM_DRIVE_STRENGTH \
  57         (CONFIG_DRAM_DRIVE_STRENGTH << 3)
  58
  59 /* configure MX6Q/DUAL mmdc DDR io registers */
  60 static struct mx6dq_iomux_ddr_regs const mx6dq_ddr_ioregs = {
  61         /* SDCLK[0:1], CAS, RAS, Reset: Differential input, 40ohm */
  62         .dram_sdclk_0 = DDR_ODT + DRAM_DRIVE_STRENGTH,
  63         .dram_sdclk_1 = DDR_ODT + DRAM_DRIVE_STRENGTH,
  64         .dram_cas = DDR_ODT + DRAM_DRIVE_STRENGTH,
  65         .dram_ras = DDR_ODT + DRAM_DRIVE_STRENGTH,
  66         .dram_reset = DDR_ODT + DRAM_DRIVE_STRENGTH,
  67         /* SDCKE[0:1]: 100k pull-up */
  68         .dram_sdcke0 = 0x00003000,
  69         .dram_sdcke1 = 0x00003000,
  70         /* SDBA2: pull-up disabled */
  71         .dram_sdba2 = 0x00000000,
  72         /* SDODT[0:1]: 100k pull-up, 40 ohm */
  73         .dram_sdodt0 = 0x00003000 + DRAM_DRIVE_STRENGTH,
  74         .dram_sdodt1 = 0x00003000 + DRAM_DRIVE_STRENGTH,
  75         /* SDQS[0:7]: Differential input, 40 ohm */
  76         .dram_sdqs0 = DRAM_DRIVE_STRENGTH,
  77         .dram_sdqs1 = DRAM_DRIVE_STRENGTH,
  78         .dram_sdqs2 = DRAM_DRIVE_STRENGTH,
  79         .dram_sdqs3 = DRAM_DRIVE_STRENGTH,
  80         .dram_sdqs4 = DRAM_DRIVE_STRENGTH,
  81         .dram_sdqs5 = DRAM_DRIVE_STRENGTH,
  82         .dram_sdqs6 = DRAM_DRIVE_STRENGTH,
  83         .dram_sdqs7 = DRAM_DRIVE_STRENGTH,
  84
  85         /* DQM[0:7]: Differential input, 40 ohm */
  86         .dram_dqm0 = DDR_ODT + DRAM_DRIVE_STRENGTH,
  87         .dram_dqm1 = DDR_ODT + DRAM_DRIVE_STRENGTH,
  88         .dram_dqm2 = DDR_ODT + DRAM_DRIVE_STRENGTH,
  89         .dram_dqm3 = DDR_ODT + DRAM_DRIVE_STRENGTH,
  90         .dram_dqm4 = DDR_ODT + DRAM_DRIVE_STRENGTH,
  91         .dram_dqm5 = DDR_ODT + DRAM_DRIVE_STRENGTH,
  92         .dram_dqm6 = DDR_ODT + DRAM_DRIVE_STRENGTH,
  93         .dram_dqm7 = DDR_ODT + DRAM_DRIVE_STRENGTH,
  94 };
  95
  96 /* configure MX6Q/DUAL mmdc GRP io registers */
  97 static struct mx6dq_iomux_grp_regs const mx6dq_grp_ioregs = {
  98         /* DDR3 */
  99         .grp_ddr_type = GRP_DDRTYPE,
 100         .grp_ddrmode_ctl = DDR_ODT,
 101         /* disable DDR pullups */
 102         .grp_ddrpke = DDR_PKE,
 103         /* ADDR[00:16], SDBA[0:1]: 40 ohm */
 104         .grp_addds = DRAM_DRIVE_STRENGTH,
 105         /* CS0/CS1/SDBA2/CKE0/CKE1/SDWE: 40 ohm */
 106         .grp_ctlds = DRAM_DRIVE_STRENGTH,
 107         /* DATA[00:63]: Differential input, 40 ohm */
 108         .grp_ddrmode = DDR_ODT,
 109         .grp_b0ds = DRAM_DRIVE_STRENGTH,
 110         .grp_b1ds = DRAM_DRIVE_STRENGTH,
 111         .grp_b2ds = DRAM_DRIVE_STRENGTH,
 112         .grp_b3ds = DRAM_DRIVE_STRENGTH,
 113         .grp_b4ds = DRAM_DRIVE_STRENGTH,
 114         .grp_b5ds = DRAM_DRIVE_STRENGTH,
 115         .grp_b6ds = DRAM_DRIVE_STRENGTH,
 116         .grp_b7ds = DRAM_DRIVE_STRENGTH,
 117 };
 118
 119 static struct mx6sdl_iomux_ddr_regs const mx6sdl_ddr_ioregs = {
 120         /* SDCLK[0:1], CAS, RAS, Reset: Differential input, 40ohm */
 121         .dram_sdclk_0 = DDR_ODT + DRAM_DRIVE_STRENGTH,
 122         .dram_sdclk_1 = DDR_ODT + DRAM_DRIVE_STRENGTH,
 123         .dram_cas = DDR_ODT + DRAM_DRIVE_STRENGTH,
 124         .dram_ras = DDR_ODT + DRAM_DRIVE_STRENGTH,
 125         .dram_reset = DDR_ODT + DRAM_DRIVE_STRENGTH,
 126         /* SDCKE[0:1]: 100k pull-up */
 127         .dram_sdcke0 = 0x00003000,
 128         .dram_sdcke1 = 0x00003000,
 129         /* SDBA2: pull-up disabled */
 130         .dram_sdba2 = 0x00000000,
 131         /* SDODT[0:1]: 100k pull-up, 40 ohm */
 132         .dram_sdodt0 = 0x00003000 + DRAM_DRIVE_STRENGTH,
 133         .dram_sdodt1 = 0x00003000 + DRAM_DRIVE_STRENGTH,
 134         /* SDQS[0:7]: Differential input, 40 ohm */
 135         .dram_sdqs0 = DRAM_DRIVE_STRENGTH,
 136         .dram_sdqs1 = DRAM_DRIVE_STRENGTH,
 137         .dram_sdqs2 = DRAM_DRIVE_STRENGTH,
 138         .dram_sdqs3 = DRAM_DRIVE_STRENGTH,
 139         .dram_sdqs4 = DRAM_DRIVE_STRENGTH,
 140         .dram_sdqs5 = DRAM_DRIVE_STRENGTH,
 141         .dram_sdqs6 = DRAM_DRIVE_STRENGTH,
 142         .dram_sdqs7 = DRAM_DRIVE_STRENGTH,
 143
 144         /* DQM[0:7]: Differential input, 40 ohm */
 145         .dram_dqm0 = DDR_ODT + DRAM_DRIVE_STRENGTH,
 146         .dram_dqm1 = DDR_ODT + DRAM_DRIVE_STRENGTH,
 147         .dram_dqm2 = DDR_ODT + DRAM_DRIVE_STRENGTH,
 148         .dram_dqm3 = DDR_ODT + DRAM_DRIVE_STRENGTH,
 149         .dram_dqm4 = DDR_ODT + DRAM_DRIVE_STRENGTH,
 150         .dram_dqm5 = DDR_ODT + DRAM_DRIVE_STRENGTH,
 151         .dram_dqm6 = DDR_ODT + DRAM_DRIVE_STRENGTH,
 152         .dram_dqm7 = DDR_ODT + DRAM_DRIVE_STRENGTH,
 153 };
 154
 155 /* configure MX6SOLO/DUALLITE mmdc GRP io registers */
 156 static struct mx6sdl_iomux_grp_regs const mx6sdl_grp_ioregs = {
 157         /* DDR3 */
 158         .grp_ddr_type = GRP_DDRTYPE,
 159         /* SDQS[0:7]: Differential input, 40 ohm */
 160         .grp_ddrmode_ctl = DDR_ODT,
 161         /* disable DDR pullups */
 162         .grp_ddrpke = DDR_PKE,
 163         /* ADDR[00:16], SDBA[0:1]: 40 ohm */
 164         .grp_addds = DRAM_DRIVE_STRENGTH,
 165         /* CS0/CS1/SDBA2/CKE0/CKE1/SDWE: 40 ohm */
 166         .grp_ctlds = DRAM_DRIVE_STRENGTH,
 167         /* DATA[00:63]: Differential input, 40 ohm */
 168         .grp_ddrmode = DDR_ODT,
 169         .grp_b0ds = DRAM_DRIVE_STRENGTH,
 170         .grp_b1ds = DRAM_DRIVE_STRENGTH,
 171         .grp_b2ds = DRAM_DRIVE_STRENGTH,
 172         .grp_b3ds = DRAM_DRIVE_STRENGTH,
 173         .grp_b4ds = DRAM_DRIVE_STRENGTH,
 174         .grp_b5ds = DRAM_DRIVE_STRENGTH,
 175         .grp_b6ds = DRAM_DRIVE_STRENGTH,
 176         .grp_b7ds = DRAM_DRIVE_STRENGTH,
 177 };
 178
 179 const struct mx6sl_iomux_ddr_regs mx6sl_ddr_ioregs = {
 180         .dram_sdqs0 = DRAM_DRIVE_STRENGTH,
 181         .dram_sdqs1 = DRAM_DRIVE_STRENGTH,
 182         .dram_sdqs2 = DRAM_DRIVE_STRENGTH,
 183         .dram_sdqs3 = DRAM_DRIVE_STRENGTH,
 184         .dram_dqm0 = DRAM_DRIVE_STRENGTH,
 185         .dram_dqm1 = DRAM_DRIVE_STRENGTH,
 186         .dram_dqm2 = DRAM_DRIVE_STRENGTH,
 187         .dram_dqm3 = DRAM_DRIVE_STRENGTH,
 188         .dram_cas  = DRAM_DRIVE_STRENGTH,
 189         .dram_ras  = DRAM_DRIVE_STRENGTH,
 190         .dram_sdclk_0 = DRAM_DRIVE_STRENGTH,
 191         .dram_reset = DRAM_DRIVE_STRENGTH,
 192         .dram_sdba2 = 0x00020000,
 193         .dram_odt0 = 0x00030000 + DRAM_DRIVE_STRENGTH,
 194         .dram_odt1 = 0x00030000 + DRAM_DRIVE_STRENGTH,
 195 };
 196
 197 const struct mx6sl_iomux_grp_regs mx6sl_grp_ioregs = {
 198         .grp_b0ds = DRAM_DRIVE_STRENGTH,
 199         .grp_b1ds = DRAM_DRIVE_STRENGTH,
 200         .grp_b2ds = DRAM_DRIVE_STRENGTH,
 201         .grp_b3ds = DRAM_DRIVE_STRENGTH,
 202         .grp_addds = DRAM_DRIVE_STRENGTH,
 203         .grp_ctlds = DRAM_DRIVE_STRENGTH,
 204         .grp_ddrmode_ctl = DDR_ODT,
 205         .grp_ddrpke = DDR_PKE,
 206         .grp_ddrmode = DDR_ODT,
 207         .grp_ddr_type = GRP_DDRTYPE,
 208 };
 209
 210 static struct mx6_ddr_sysinfo const sysinfo = {
 211         /* width of data bus:0=16,1=32,2=64 */
 212 #if CONFIG_DDRWIDTH == 32
 213         .dsize = 1,
 214 #elif CONFIG_DDRWIDTH == 64
 215         .dsize = 2,
 216 #else
 217 #error missing CONFIG_DDRWIDTH
 218 #endif
 219         /* config for full 4GB range so that get_mem_size() works */
 220         .cs_density = 32, /* 32Gb per CS */
 221
 222         /* # of chip selects */
 223         .ncs = CONFIG_DDRCS,
 224         .cs1_mirror = 0,
 225         .bi_on = 1,     /* Bank interleaving enabled */
 226         .rtt_nom = CONFIG_RTT_NOM,
 227         .rtt_wr = CONFIG_RTT_WR,
 228         .ralat = CONFIG_RALAT,  /* Read additional latency */
 229         .walat = CONFIG_WALAT,  /* Write additional latency */
 230         .mif3_mode = 3, /* Command prediction working mode */
 231 #ifdef CONFIG_DDR3
 232         .rst_to_cke = 0x23,     /* 33 cycles, 500us (JEDEC default) */
 233         .sde_to_rst = 0x10,     /* JEDEC value for LPDDR2 - 200us */
 234         .pd_fast_exit = 0,      /* immaterial for calibration */
 235         .ddr_type = DDR_TYPE_DDR3,
 236 #else
 237         .rst_to_cke = 0x10,     /* JEDEC value for LPDDR2: 200us */
 238         .sde_to_rst = 0,        /* LPDDR2 does not need this field */
 239         .pd_fast_exit = 0,      /* immaterial for calibration */
 240         .ddr_type = DDR_TYPE_LPDDR2,
 241 #endif
 242         .refsel = CONFIG_REFSEL,
 243         .refr = CONFIG_REFR,
 244 };
 245
 246 #ifdef CONFIG_MT41K512M16TNA
 247 /* Micron MT41K512M16TNA-125 */
 248 static struct mx6_ddr3_cfg const ddrtype = {
 249         .mem_speed = 1600,
 250         .density = 8,
 251         .width = 16,
 252         .banks = 8,
 253         .rowaddr = 15,
 254         .coladdr = 10,
 255         .pagesz = 1,
 256         .trcd = 1375,
 257         .trcmin = 5062,
 258         .trasmin = 3750,
 259 };
 260 #elif defined(CONFIG_MT41K128M16JT)
 261 /* Micron MT41K128M16JT-125 */
 262 static struct mx6_ddr3_cfg const ddrtype = {
 263         .mem_speed = 1600,
 264         .density = 2,
 265         .width = 16,
 266         .banks = 8,
 267         .rowaddr = 14,
 268         .coladdr = 10,
 269         .pagesz = 2,
 270         .trcd = 1375,
 271         .trcmin = 4875,
 272         .trasmin = 3500,
 273 };
 274 #elif defined(CONFIG_H5TQ4G63AFR)
 275 /* Hynix H5TQ4G63AFR */
 276 static struct mx6_ddr3_cfg const ddrtype = {
 277         .mem_speed = 1600,
 278         .density = 4,
 279         .width = 16,
 280         .banks = 8,
 281         .rowaddr = 15,
 282         .coladdr = 10,
 283         .pagesz = 2,
 284         .trcd = 1375,
 285         .trcmin = 4875,
 286         .trasmin = 3500,
 287 };
 288 #elif defined CONFIG_H5TQ2G63DFR
 289 /* Hynix H5TQ2G63DFR */
 290 static struct mx6_ddr3_cfg const ddrtype = {
 291         .mem_speed = 1333,
 292         .density = 2,
 293         .width = 16,
 294         .banks = 8,
 295         .rowaddr = 14,
 296         .coladdr = 10,
 297         .pagesz = 2,
 298         .trcd = 1350,
 299         .trcmin = 4950,
 300         .trasmin = 3600,
 301 };
 302 #elif defined(CONFIG_MT42L256M32D2LG)
 303 /* Micron MT42L256M32D2LG */
 304 static struct mx6_lpddr2_cfg ddrtype = {
 305         .mem_speed = 800,
 306         .density = 4,
 307         .width = 32,
 308         .banks = 8,
 309         .rowaddr = 14,
 310         .coladdr = 10,
 311         .trcd_lp = 2000,
 312         .trppb_lp = 2000,
 313         .trpab_lp = 2250,
 314         .trasmin = 4200,
 315 };
 316 #elif defined(CONFIG_MT29PZZZ4D4BKESK)
 317 /* Micron MT29PZZZ4D4BKESK */
 318 static struct mx6_lpddr2_cfg ddrtype = {
 319         .mem_speed = 800,
 320         .density = 4,
 321         .width = 32,
 322         .banks = 8,
 323         .rowaddr = 14,
 324         .coladdr = 10,
 325         .trcd_lp = 2000,
 326         .trppb_lp = 2000,
 327         .trpab_lp = 2250,
 328         .trasmin = 4200,
 329 };
 330 #else
 331 #error please select DDR type using menuconfig
 332 #endif
 333
 334 static void ccgr_init(void)
 335 {
 336         struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
 337
 338         /* FIXME: these should probably be checked, especially
 339          * for i.MX6SL, UL, ULL
 340          */
 341         writel(0x00C03F3F, &ccm->CCGR0);
 342         writel(0x0030FC03, &ccm->CCGR1);
 343         writel(0x0FFFC000, &ccm->CCGR2);
 344         writel(0x3FF00000, &ccm->CCGR3);
 345         writel(0x00FFF300, &ccm->CCGR4);
 346         writel(0x0F0000C3, &ccm->CCGR5);
 347         writel(0x000003FF, &ccm->CCGR6);
 348 }
 349
 350 static void display_calibration(struct mx6_mmdc_calibration *calib)
 351 {
 352         printf(".p0_mpdgctrl0\t= 0x%08X\n", calib->p0_mpdgctrl0);
 353         printf(".p0_mpdgctrl1\t= 0x%08X\n", calib->p0_mpdgctrl1);
 354         printf(".p0_mprddlctl\t= 0x%08X\n", calib->p0_mprddlctl);
 355         printf(".p0_mpwrdlctl\t= 0x%08X\n", calib->p0_mpwrdlctl);
 356         printf(".p0_mpwldectrl0\t= 0x%08X\n", calib->p0_mpwldectrl0);
 357         printf(".p0_mpwldectrl1\t= 0x%08X\n", calib->p0_mpwldectrl1);
 358         if (sysinfo.dsize == 2) {
 359                 printf(".p1_mpdgctrl0\t= 0x%08X\n", calib->p1_mpdgctrl0);
 360                 printf(".p1_mpdgctrl1\t= 0x%08X\n", calib->p1_mpdgctrl1);
 361                 printf(".p1_mprddlctl\t= 0x%08X\n", calib->p1_mprddlctl);
 362                 printf(".p1_mpwrdlctl\t= 0x%08X\n", calib->p1_mpwrdlctl);
 363                 printf(".p1_mpwldectrl0\t= 0x%08X\n", calib->p1_mpwldectrl0);
 364                 printf(".p1_mpwldectrl1\t= 0x%08X\n", calib->p1_mpwldectrl1);
 365         }
 366 #ifdef CONFIG_IMXIMAGE_OUTPUT
 367         printf("DATA 4 MX6_MMDC_P0_MPDGCTRL0\t= 0x%08X\n", calib->p0_mpdgctrl0);
 368         printf("DATA 4 MX6_MMDC_P0_MPDGCTRL1\t= 0x%08X\n", calib->p0_mpdgctrl1);
 369         printf("DATA 4 MX6_MMDC_P0_MPRDDLCTL\t= 0x%08X\n", calib->p0_mprddlctl);
 370         printf("DATA 4 MX6_MMDC_P0_MPWRDLCTL\t= 0x%08X\n", calib->p0_mpwrdlctl);
 371         printf("DATA 4 MX6_MMDC_P0_MPWLDECTRL0\t= 0x%08X\n",
 372                calib->p0_mpwldectrl0);
 373         printf("DATA 4 MX6_MMDC_P0_MPWLDECTRL1\t= 0x%08X\n",
 374                calib->p0_mpwldectrl1);
 375         if (sysinfo.dsize == 2) {
 376                 printf("DATA 4 MX6_MMDC_P1_MPDGCTRL0\t= 0x%08X\n",
 377                        calib->p1_mpdgctrl0);
 378                 printf("DATA 4 MX6_MMDC_P1_MPDGCTRL1\t= 0x%08X\n",
 379                        calib->p1_mpdgctrl1);
 380                 printf("DATA 4 MX6_MMDC_P1_MPRDDLCTL\t= 0x%08X\n",
 381                        calib->p1_mprddlctl);
 382                 printf("DATA 4 MX6_MMDC_P1_MPWRDLCTL\t= 0x%08X\n",
 383                        calib->p1_mpwrdlctl);
 384                 printf("DATA 4 MX6_MMDC_P1_MPWLDECTRL0\t= 0x%08X\n",
 385                        calib->p1_mpwldectrl0);
 386                 printf("DATA 4 MX6_MMDC_P1_MPWLDECTRL1\t= 0x%08X\n",
 387                        calib->p1_mpwldectrl1);
 388         }
 389 #endif
 390 }
 391
 392 /*
 393  * called from C runtime startup code (arch/arm/lib/crt0.S:_main)
 394  * - we have a stack and a place to store GD, both in SRAM
 395  * - no variable global data is available
 396  */
 397 void board_init_f(ulong dummy)
 398 {
 399         int errs;
 400         struct mx6_mmdc_calibration calibration = {0};
 401
 402         memset((void *)gd, 0, sizeof(struct global_data));
 403
 404         /* write leveling calibration defaults */
 405         calibration.p0_mpwrdlctl = 0x40404040;
 406         calibration.p1_mpwrdlctl = 0x40404040;
 407
 408         /* setup AIPS and disable watchdog */
 409         arch_cpu_init();
 410
 411         ccgr_init();
 412
 413         SETUP_IOMUX_PADS(uart_pads);
 414
 415         /* setup GP timer */
 416         timer_init();
 417
 418         /* UART clocks enabled and gd valid - init serial console */
 419         preloader_console_init();
 420
 421         if (sysinfo.dsize != 1) {
 422                 if (is_cpu_type(MXC_CPU_MX6SX) ||
 423                     is_cpu_type(MXC_CPU_MX6UL) ||
 424                     is_cpu_type(MXC_CPU_MX6ULL) ||
 425                     is_cpu_type(MXC_CPU_MX6SL)) {
 426                         printf("cpu type 0x%x doesn't support 64-bit bus\n",
 427                                get_cpu_type());
 428                         reset_cpu(0);
 429                 }
 430         }
 431 #ifdef CONFIG_MX6SL
 432         mx6sl_dram_iocfg(CONFIG_DDRWIDTH, &mx6sl_ddr_ioregs,
 433                          &mx6sl_grp_ioregs);
 434 #else
 435         if (is_cpu_type(MXC_CPU_MX6Q)) {
 436                 mx6dq_dram_iocfg(CONFIG_DDRWIDTH, &mx6dq_ddr_ioregs,
 437                                  &mx6dq_grp_ioregs);
 438         } else {
 439                 mx6sdl_dram_iocfg(CONFIG_DDRWIDTH, &mx6sdl_ddr_ioregs,
 440                                   &mx6sdl_grp_ioregs);
 441         }
 442 #endif
 443         mx6_dram_cfg(&sysinfo, &calibration, &ddrtype);
 444
 445         errs = mmdc_do_write_level_calibration(&sysinfo);
 446         if (errs) {
 447                 printf("error %d from write level calibration\n", errs);
 448         } else {
 449                 errs = mmdc_do_dqs_calibration(&sysinfo);
 450                 if (errs) {
 451                         printf("error %d from dqs calibration\n", errs);
 452                 } else {
 453                         printf("completed successfully\n");
 454                         mmdc_read_calibration(&sysinfo, &calibration);
 455                         display_calibration(&calibration);
 456                 }
 457         }
 458 }