LXR uboot/board/wandboard/spl.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright (C) 2014 Wandboard
   4 * Author: Tungyi Lin <tungyilin1127@gmail.com>
   5 *         Richard Hu <hakahu@gmail.com>
   6 */
   7
   8#include <common.h>
   9#include <init.h>
  10#include <asm/arch/clock.h>
  11#include <asm/arch/imx-regs.h>
  12#include <asm/arch/iomux.h>
  13#include <asm/arch/mx6-pins.h>
  14#include <linux/delay.h>
  15#include <linux/errno.h>
  16#include <asm/gpio.h>
  17#include <asm/mach-imx/iomux-v3.h>
  18#include <asm/mach-imx/video.h>
  19#include <mmc.h>
  20#include <fsl_esdhc_imx.h>
  21#include <asm/arch/crm_regs.h>
  22#include <asm/io.h>
  23#include <asm/arch/sys_proto.h>
  24#include <spl.h>
  25
  26#include <asm/arch/mx6-ddr.h>
  27/*
  28 * Driving strength:
  29 *   0x30 == 40 Ohm
  30 *   0x28 == 48 Ohm
  31 */
  32
  33#define IMX6DQ_DRIVE_STRENGTH           0x30
  34#define IMX6SDL_DRIVE_STRENGTH          0x28
  35#define IMX6QP_DRIVE_STRENGTH           0x28
  36
  37/* configure MX6Q/DUAL mmdc DDR io registers */
  38static struct mx6dq_iomux_ddr_regs mx6dq_ddr_ioregs = {
  39        .dram_sdclk_0 = IMX6DQ_DRIVE_STRENGTH,
  40        .dram_sdclk_1 = IMX6DQ_DRIVE_STRENGTH,
  41        .dram_cas = IMX6DQ_DRIVE_STRENGTH,
  42        .dram_ras = IMX6DQ_DRIVE_STRENGTH,
  43        .dram_reset = IMX6DQ_DRIVE_STRENGTH,
  44        .dram_sdcke0 = IMX6DQ_DRIVE_STRENGTH,
  45        .dram_sdcke1 = IMX6DQ_DRIVE_STRENGTH,
  46        .dram_sdba2 = 0x00000000,
  47        .dram_sdodt0 = IMX6DQ_DRIVE_STRENGTH,
  48        .dram_sdodt1 = IMX6DQ_DRIVE_STRENGTH,
  49        .dram_sdqs0 = IMX6DQ_DRIVE_STRENGTH,
  50        .dram_sdqs1 = IMX6DQ_DRIVE_STRENGTH,
  51        .dram_sdqs2 = IMX6DQ_DRIVE_STRENGTH,
  52        .dram_sdqs3 = IMX6DQ_DRIVE_STRENGTH,
  53        .dram_sdqs4 = IMX6DQ_DRIVE_STRENGTH,
  54        .dram_sdqs5 = IMX6DQ_DRIVE_STRENGTH,
  55        .dram_sdqs6 = IMX6DQ_DRIVE_STRENGTH,
  56        .dram_sdqs7 = IMX6DQ_DRIVE_STRENGTH,
  57        .dram_dqm0 = IMX6DQ_DRIVE_STRENGTH,
  58        .dram_dqm1 = IMX6DQ_DRIVE_STRENGTH,
  59        .dram_dqm2 = IMX6DQ_DRIVE_STRENGTH,
  60        .dram_dqm3 = IMX6DQ_DRIVE_STRENGTH,
  61        .dram_dqm4 = IMX6DQ_DRIVE_STRENGTH,
  62        .dram_dqm5 = IMX6DQ_DRIVE_STRENGTH,
  63        .dram_dqm6 = IMX6DQ_DRIVE_STRENGTH,
  64        .dram_dqm7 = IMX6DQ_DRIVE_STRENGTH,
  65};
  66
  67/* configure MX6QP mmdc DDR io registers */
  68static struct mx6dq_iomux_ddr_regs mx6qp_ddr_ioregs = {
  69        .dram_sdclk_0 = IMX6QP_DRIVE_STRENGTH,
  70        .dram_sdclk_1 = IMX6QP_DRIVE_STRENGTH,
  71        .dram_cas = IMX6QP_DRIVE_STRENGTH,
  72        .dram_ras = IMX6QP_DRIVE_STRENGTH,
  73        .dram_reset = IMX6QP_DRIVE_STRENGTH,
  74        .dram_sdcke0 = IMX6QP_DRIVE_STRENGTH,
  75        .dram_sdcke1 = IMX6QP_DRIVE_STRENGTH,
  76        .dram_sdba2 = 0x00000000,
  77        .dram_sdodt0 = IMX6QP_DRIVE_STRENGTH,
  78        .dram_sdodt1 = IMX6QP_DRIVE_STRENGTH,
  79        .dram_sdqs0 = IMX6QP_DRIVE_STRENGTH,
  80        .dram_sdqs1 = IMX6QP_DRIVE_STRENGTH,
  81        .dram_sdqs2 = IMX6QP_DRIVE_STRENGTH,
  82        .dram_sdqs3 = IMX6QP_DRIVE_STRENGTH,
  83        .dram_sdqs4 = IMX6QP_DRIVE_STRENGTH,
  84        .dram_sdqs5 = IMX6QP_DRIVE_STRENGTH,
  85        .dram_sdqs6 = IMX6QP_DRIVE_STRENGTH,
  86        .dram_sdqs7 = IMX6QP_DRIVE_STRENGTH,
  87        .dram_dqm0 = IMX6QP_DRIVE_STRENGTH,
  88        .dram_dqm1 = IMX6QP_DRIVE_STRENGTH,
  89        .dram_dqm2 = IMX6QP_DRIVE_STRENGTH,
  90        .dram_dqm3 = IMX6QP_DRIVE_STRENGTH,
  91        .dram_dqm4 = IMX6QP_DRIVE_STRENGTH,
  92        .dram_dqm5 = IMX6QP_DRIVE_STRENGTH,
  93        .dram_dqm6 = IMX6QP_DRIVE_STRENGTH,
  94        .dram_dqm7 = IMX6QP_DRIVE_STRENGTH,
  95};
  96
  97/* configure MX6Q/DUAL mmdc GRP io registers */
  98static struct mx6dq_iomux_grp_regs mx6dq_grp_ioregs = {
  99        .grp_ddr_type = 0x000c0000,
 100        .grp_ddrmode_ctl = 0x00020000,
 101        .grp_ddrpke = 0x00000000,
 102        .grp_addds = IMX6DQ_DRIVE_STRENGTH,
 103        .grp_ctlds = IMX6DQ_DRIVE_STRENGTH,
 104        .grp_ddrmode = 0x00020000,
 105        .grp_b0ds = IMX6DQ_DRIVE_STRENGTH,
 106        .grp_b1ds = IMX6DQ_DRIVE_STRENGTH,
 107        .grp_b2ds = IMX6DQ_DRIVE_STRENGTH,
 108        .grp_b3ds = IMX6DQ_DRIVE_STRENGTH,
 109        .grp_b4ds = IMX6DQ_DRIVE_STRENGTH,
 110        .grp_b5ds = IMX6DQ_DRIVE_STRENGTH,
 111        .grp_b6ds = IMX6DQ_DRIVE_STRENGTH,
 112        .grp_b7ds = IMX6DQ_DRIVE_STRENGTH,
 113};
 114
 115/* configure MX6QP mmdc GRP io registers */
 116static struct mx6dq_iomux_grp_regs mx6qp_grp_ioregs = {
 117        .grp_ddr_type = 0x000c0000,
 118        .grp_ddrmode_ctl = 0x00020000,
 119        .grp_ddrpke = 0x00000000,
 120        .grp_addds = IMX6QP_DRIVE_STRENGTH,
 121        .grp_ctlds = IMX6QP_DRIVE_STRENGTH,
 122        .grp_ddrmode = 0x00020000,
 123        .grp_b0ds = IMX6QP_DRIVE_STRENGTH,
 124        .grp_b1ds = IMX6QP_DRIVE_STRENGTH,
 125        .grp_b2ds = IMX6QP_DRIVE_STRENGTH,
 126        .grp_b3ds = IMX6QP_DRIVE_STRENGTH,
 127        .grp_b4ds = IMX6QP_DRIVE_STRENGTH,
 128        .grp_b5ds = IMX6QP_DRIVE_STRENGTH,
 129        .grp_b6ds = IMX6QP_DRIVE_STRENGTH,
 130        .grp_b7ds = IMX6QP_DRIVE_STRENGTH,
 131};
 132
 133/* configure MX6SOLO/DUALLITE mmdc DDR io registers */
 134struct mx6sdl_iomux_ddr_regs mx6sdl_ddr_ioregs = {
 135        .dram_sdclk_0 = IMX6SDL_DRIVE_STRENGTH,
 136        .dram_sdclk_1 = IMX6SDL_DRIVE_STRENGTH,
 137        .dram_cas = IMX6SDL_DRIVE_STRENGTH,
 138        .dram_ras = IMX6SDL_DRIVE_STRENGTH,
 139        .dram_reset = IMX6SDL_DRIVE_STRENGTH,
 140        .dram_sdcke0 = IMX6SDL_DRIVE_STRENGTH,
 141        .dram_sdcke1 = IMX6SDL_DRIVE_STRENGTH,
 142        .dram_sdba2 = 0x00000000,
 143        .dram_sdodt0 = IMX6SDL_DRIVE_STRENGTH,
 144        .dram_sdodt1 = IMX6SDL_DRIVE_STRENGTH,
 145        .dram_sdqs0 = IMX6SDL_DRIVE_STRENGTH,
 146        .dram_sdqs1 = IMX6SDL_DRIVE_STRENGTH,
 147        .dram_sdqs2 = IMX6SDL_DRIVE_STRENGTH,
 148        .dram_sdqs3 = IMX6SDL_DRIVE_STRENGTH,
 149        .dram_sdqs4 = IMX6SDL_DRIVE_STRENGTH,
 150        .dram_sdqs5 = IMX6SDL_DRIVE_STRENGTH,
 151        .dram_sdqs6 = IMX6SDL_DRIVE_STRENGTH,
 152        .dram_sdqs7 = IMX6SDL_DRIVE_STRENGTH,
 153        .dram_dqm0 = IMX6SDL_DRIVE_STRENGTH,
 154        .dram_dqm1 = IMX6SDL_DRIVE_STRENGTH,
 155        .dram_dqm2 = IMX6SDL_DRIVE_STRENGTH,
 156        .dram_dqm3 = IMX6SDL_DRIVE_STRENGTH,
 157        .dram_dqm4 = IMX6SDL_DRIVE_STRENGTH,
 158        .dram_dqm5 = IMX6SDL_DRIVE_STRENGTH,
 159        .dram_dqm6 = IMX6SDL_DRIVE_STRENGTH,
 160        .dram_dqm7 = IMX6SDL_DRIVE_STRENGTH,
 161};
 162
 163/* configure MX6SOLO/DUALLITE mmdc GRP io registers */
 164struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = {
 165        .grp_ddr_type = 0x000c0000,
 166        .grp_ddrmode_ctl = 0x00020000,
 167        .grp_ddrpke = 0x00000000,
 168        .grp_addds = IMX6SDL_DRIVE_STRENGTH,
 169        .grp_ctlds = IMX6SDL_DRIVE_STRENGTH,
 170        .grp_ddrmode = 0x00020000,
 171        .grp_b0ds = IMX6SDL_DRIVE_STRENGTH,
 172        .grp_b1ds = IMX6SDL_DRIVE_STRENGTH,
 173        .grp_b2ds = IMX6SDL_DRIVE_STRENGTH,
 174        .grp_b3ds = IMX6SDL_DRIVE_STRENGTH,
 175        .grp_b4ds = IMX6SDL_DRIVE_STRENGTH,
 176        .grp_b5ds = IMX6SDL_DRIVE_STRENGTH,
 177        .grp_b6ds = IMX6SDL_DRIVE_STRENGTH,
 178        .grp_b7ds = IMX6SDL_DRIVE_STRENGTH,
 179};
 180
 181/* H5T04G63AFR-PB */
 182static struct mx6_ddr3_cfg h5t04g63afr = {
 183        .mem_speed = 1600,
 184        .density = 4,
 185        .width = 16,
 186        .banks = 8,
 187        .rowaddr = 15,
 188        .coladdr = 10,
 189        .pagesz = 2,
 190        .trcd = 1375,
 191        .trcmin = 4875,
 192        .trasmin = 3500,
 193};
 194
 195/* H5TQ2G63DFR-H9 */
 196static struct mx6_ddr3_cfg h5tq2g63dfr = {
 197        .mem_speed = 1333,
 198        .density = 2,
 199        .width = 16,
 200        .banks = 8,
 201        .rowaddr = 14,
 202        .coladdr = 10,
 203        .pagesz = 2,
 204        .trcd = 1350,
 205        .trcmin = 4950,
 206        .trasmin = 3600,
 207};
 208
 209static struct mx6_mmdc_calibration mx6q_2g_mmdc_calib = {
 210        .p0_mpwldectrl0 = 0x001f001f,
 211        .p0_mpwldectrl1 = 0x001f001f,
 212        .p1_mpwldectrl0 = 0x001f001f,
 213        .p1_mpwldectrl1 = 0x001f001f,
 214        .p0_mpdgctrl0 = 0x4301030d,
 215        .p0_mpdgctrl1 = 0x03020277,
 216        .p1_mpdgctrl0 = 0x4300030a,
 217        .p1_mpdgctrl1 = 0x02780248,
 218        .p0_mprddlctl = 0x4536393b,
 219        .p1_mprddlctl = 0x36353441,
 220        .p0_mpwrdlctl = 0x41414743,
 221        .p1_mpwrdlctl = 0x462f453f,
 222};
 223
 224/* DDR 64bit 2GB */
 225static struct mx6_ddr_sysinfo mem_q = {
 226        .dsize          = 2,
 227        .cs1_mirror     = 0,
 228        /* config for full 4GB range so that get_mem_size() works */
 229        .cs_density     = 32,
 230        .ncs            = 1,
 231        .bi_on          = 1,
 232        .rtt_nom        = 1,
 233        .rtt_wr         = 0,
 234        .ralat          = 5,
 235        .walat          = 0,
 236        .mif3_mode      = 3,
 237        .rst_to_cke     = 0x23,
 238        .sde_to_rst     = 0x10,
 239        .refsel = 1,    /* Refresh cycles at 32KHz */
 240        .refr = 3,      /* 4 refresh commands per refresh cycle */
 241};
 242
 243static struct mx6_mmdc_calibration mx6dl_1g_mmdc_calib = {
 244        .p0_mpwldectrl0 = 0x001f001f,
 245        .p0_mpwldectrl1 = 0x001f001f,
 246        .p1_mpwldectrl0 = 0x001f001f,
 247        .p1_mpwldectrl1 = 0x001f001f,
 248        .p0_mpdgctrl0 = 0x420e020e,
 249        .p0_mpdgctrl1 = 0x02000200,
 250        .p1_mpdgctrl0 = 0x42020202,
 251        .p1_mpdgctrl1 = 0x01720172,
 252        .p0_mprddlctl = 0x494c4f4c,
 253        .p1_mprddlctl = 0x4a4c4c49,
 254        .p0_mpwrdlctl = 0x3f3f3133,
 255        .p1_mpwrdlctl = 0x39373f2e,
 256};
 257
 258static struct mx6_mmdc_calibration mx6s_512m_mmdc_calib = {
 259        .p0_mpwldectrl0 = 0x0040003c,
 260        .p0_mpwldectrl1 = 0x0032003e,
 261        .p0_mpdgctrl0 = 0x42350231,
 262        .p0_mpdgctrl1 = 0x021a0218,
 263        .p0_mprddlctl = 0x4b4b4e49,
 264        .p0_mpwrdlctl = 0x3f3f3035,
 265};
 266
 267/* DDR 64bit 1GB */
 268static struct mx6_ddr_sysinfo mem_dl = {
 269        .dsize          = 2,
 270        .cs1_mirror     = 0,
 271        /* config for full 4GB range so that get_mem_size() works */
 272        .cs_density     = 32,
 273        .ncs            = 1,
 274        .bi_on          = 1,
 275        .rtt_nom        = 1,
 276        .rtt_wr         = 0,
 277        .ralat          = 5,
 278        .walat          = 0,
 279        .mif3_mode      = 3,
 280        .rst_to_cke     = 0x23,
 281        .sde_to_rst     = 0x10,
 282        .refsel = 1,    /* Refresh cycles at 32KHz */
 283        .refr = 3,      /* 4 refresh commands per refresh cycle */
 284};
 285
 286/* DDR 32bit 512MB */
 287static struct mx6_ddr_sysinfo mem_s = {
 288        .dsize          = 1,
 289        .cs1_mirror     = 0,
 290        /* config for full 4GB range so that get_mem_size() works */
 291        .cs_density     = 32,
 292        .ncs            = 1,
 293        .bi_on          = 1,
 294        .rtt_nom        = 1,
 295        .rtt_wr         = 0,
 296        .ralat          = 5,
 297        .walat          = 0,
 298        .mif3_mode      = 3,
 299        .rst_to_cke     = 0x23,
 300        .sde_to_rst     = 0x10,
 301        .refsel = 1,    /* Refresh cycles at 32KHz */
 302        .refr = 3,      /* 4 refresh commands per refresh cycle */
 303};
 304
 305static void ccgr_init(void)
 306{
 307        struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
 308
 309        writel(0x00C03F3F, &ccm->CCGR0);
 310        writel(0x0030FC03, &ccm->CCGR1);
 311        writel(0x0FFFC000, &ccm->CCGR2);
 312        writel(0x3FF03000, &ccm->CCGR3);
 313        writel(0x00FFF300, &ccm->CCGR4);
 314        writel(0x0F0000C3, &ccm->CCGR5);
 315        writel(0x000003FF, &ccm->CCGR6);
 316}
 317
 318static void spl_dram_init_imx6qp_lpddr3(void)
 319{
 320        /* MMDC0_MDSCR set the Configuration request bit during MMDC set up */
 321        writel(0x00008000, MMDC_P0_BASE_ADDR + 0x01c);
 322        /* Calibrations - ZQ */
 323        writel(0xa1390003, MMDC_P0_BASE_ADDR + 0x800);
 324        /* write leveling */
 325        writel(0x00060004, MMDC_P0_BASE_ADDR + 0x80c);
 326        writel(0x000B0004, MMDC_P0_BASE_ADDR + 0x810);
 327        writel(0x00000004, MMDC_P1_BASE_ADDR + 0x80c);
 328        writel(0x00000000, MMDC_P1_BASE_ADDR + 0x810);
 329        /*
 330         * DQS gating, read delay, write delay calibration values
 331         * based on calibration compare of 0x00ffff00
 332         */
 333        writel(0x03040314, MMDC_P0_BASE_ADDR + 0x83c);
 334        writel(0x03080300, MMDC_P0_BASE_ADDR + 0x840);
 335        writel(0x03000310, MMDC_P1_BASE_ADDR + 0x83c);
 336        writel(0x0268023C, MMDC_P1_BASE_ADDR + 0x840);
 337        writel(0x4034363A, MMDC_P0_BASE_ADDR + 0x848);
 338        writel(0x36302C3C, MMDC_P1_BASE_ADDR + 0x848);
 339        writel(0x3E3E4046, MMDC_P0_BASE_ADDR + 0x850);
 340        writel(0x483A4844, MMDC_P1_BASE_ADDR + 0x850);
 341        writel(0x33333333, MMDC_P0_BASE_ADDR + 0x81c);
 342        writel(0x33333333, MMDC_P0_BASE_ADDR + 0x820);
 343        writel(0x33333333, MMDC_P0_BASE_ADDR + 0x824);
 344        writel(0x33333333, MMDC_P0_BASE_ADDR + 0x828);
 345        writel(0x33333333, MMDC_P1_BASE_ADDR + 0x81c);
 346        writel(0x33333333, MMDC_P1_BASE_ADDR + 0x820);
 347        writel(0x33333333, MMDC_P1_BASE_ADDR + 0x824);
 348        writel(0x33333333, MMDC_P1_BASE_ADDR + 0x828);
 349        writel(0x24912489, MMDC_P0_BASE_ADDR + 0x8c0);
 350        writel(0x24914452, MMDC_P1_BASE_ADDR + 0x8c0);
 351        writel(0x00000800, MMDC_P0_BASE_ADDR + 0x8b8);
 352        writel(0x00000800, MMDC_P1_BASE_ADDR + 0x8b8);
 353        /* MMDC init: in DDR3, 64-bit mode, only MMDC0 is initiated */
 354        writel(0x00020036, MMDC_P0_BASE_ADDR + 0x004);
 355        writel(0x09444040, MMDC_P0_BASE_ADDR + 0x008);
 356        writel(0x898E79A4, MMDC_P0_BASE_ADDR + 0x00c);
 357        writel(0xDB538F64, MMDC_P0_BASE_ADDR + 0x010);
 358        writel(0x01FF00DD, MMDC_P0_BASE_ADDR + 0x014);
 359        writel(0x00011740, MMDC_P0_BASE_ADDR + 0x018);
 360        writel(0x00008000, MMDC_P0_BASE_ADDR + 0x01c);
 361        writel(0x000026D2, MMDC_P0_BASE_ADDR + 0x02c);
 362        writel(0x008E1023, MMDC_P0_BASE_ADDR + 0x030);
 363        writel(0x00000047, MMDC_P0_BASE_ADDR + 0x040);
 364        writel(0x14420000, MMDC_P0_BASE_ADDR + 0x400);
 365        writel(0x841A0000, MMDC_P0_BASE_ADDR + 0x000);
 366        writel(0x00400c58, MMDC_P0_BASE_ADDR + 0x890);
 367        /* add NOC DDR configuration */
 368        writel(0x00000000, NOC_DDR_BASE_ADDR + 0x008);
 369        writel(0x2871C39B, NOC_DDR_BASE_ADDR + 0x00c);
 370        writel(0x000005B4, NOC_DDR_BASE_ADDR + 0x038);
 371        writel(0x00000040, NOC_DDR_BASE_ADDR + 0x014);
 372        writel(0x00000020, NOC_DDR_BASE_ADDR + 0x028);
 373        writel(0x00000020, NOC_DDR_BASE_ADDR + 0x02c);
 374        writel(0x02088032, MMDC_P0_BASE_ADDR + 0x01c);
 375        writel(0x00008033, MMDC_P0_BASE_ADDR + 0x01c);
 376        writel(0x00048031, MMDC_P0_BASE_ADDR + 0x01c);
 377        writel(0x19308030, MMDC_P0_BASE_ADDR + 0x01c);
 378        writel(0x04008040, MMDC_P0_BASE_ADDR + 0x01c);
 379        writel(0x00007800, MMDC_P0_BASE_ADDR + 0x020);
 380        writel(0x00022227, MMDC_P0_BASE_ADDR + 0x818);
 381        writel(0x00022227, MMDC_P1_BASE_ADDR + 0x818);
 382        writel(0x00025576, MMDC_P0_BASE_ADDR + 0x004);
 383        writel(0x00011006, MMDC_P0_BASE_ADDR + 0x404);
 384        writel(0x00000000, MMDC_P0_BASE_ADDR + 0x01c);
 385}
 386
 387static void spl_dram_init(void)
 388{
 389        if (is_mx6dqp()) {
 390                mx6dq_dram_iocfg(64, &mx6qp_ddr_ioregs, &mx6qp_grp_ioregs);
 391                spl_dram_init_imx6qp_lpddr3();
 392        } else if (is_cpu_type(MXC_CPU_MX6SOLO)) {
 393                mx6sdl_dram_iocfg(32, &mx6sdl_ddr_ioregs, &mx6sdl_grp_ioregs);
 394                mx6_dram_cfg(&mem_s, &mx6s_512m_mmdc_calib, &h5tq2g63dfr);
 395        } else if (is_cpu_type(MXC_CPU_MX6DL)) {
 396                mx6sdl_dram_iocfg(64, &mx6sdl_ddr_ioregs, &mx6sdl_grp_ioregs);
 397                mx6_dram_cfg(&mem_dl, &mx6dl_1g_mmdc_calib, &h5tq2g63dfr);
 398        } else if (is_cpu_type(MXC_CPU_MX6Q)) {
 399                mx6dq_dram_iocfg(64, &mx6dq_ddr_ioregs, &mx6dq_grp_ioregs);
 400                mx6_dram_cfg(&mem_q, &mx6q_2g_mmdc_calib, &h5t04g63afr);
 401        }
 402
 403        udelay(100);
 404}
 405
 406void board_init_f(ulong dummy)
 407{
 408        ccgr_init();
 409
 410        /* setup AIPS and disable watchdog */
 411        arch_cpu_init();
 412
 413        gpr_init();
 414
 415        /* iomux */
 416        board_early_init_f();
 417
 418        /* setup GP timer */
 419        timer_init();
 420
 421        /* UART clocks enabled and gd valid - init serial console */
 422        preloader_console_init();
 423
 424        /* DDR initialization */
 425        spl_dram_init();
 426}
 427
 428#define USDHC1_CD_GPIO          IMX_GPIO_NR(1, 2)
 429#define USDHC3_CD_GPIO          IMX_GPIO_NR(3, 9)
 430
 431#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP |                    \
 432        PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm |                 \
 433        PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
 434
 435static struct fsl_esdhc_cfg usdhc_cfg[2] = {
 436        {USDHC3_BASE_ADDR},
 437        {USDHC1_BASE_ADDR},
 438};
 439
 440static iomux_v3_cfg_t const usdhc1_pads[] = {
 441        IOMUX_PADS(PAD_SD1_CLK__SD1_CLK    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
 442        IOMUX_PADS(PAD_SD1_CMD__SD1_CMD    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
 443        IOMUX_PADS(PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
 444        IOMUX_PADS(PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
 445        IOMUX_PADS(PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
 446        IOMUX_PADS(PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
 447        /* Carrier MicroSD Card Detect */
 448        IOMUX_PADS(PAD_GPIO_2__GPIO1_IO02  | MUX_PAD_CTRL(NO_PAD_CTRL)),
 449};
 450
 451static iomux_v3_cfg_t const usdhc3_pads[] = {
 452        IOMUX_PADS(PAD_SD3_CLK__SD3_CLK    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
 453        IOMUX_PADS(PAD_SD3_CMD__SD3_CMD    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
 454        IOMUX_PADS(PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
 455        IOMUX_PADS(PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
 456        IOMUX_PADS(PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
 457        IOMUX_PADS(PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
 458        /* SOM MicroSD Card Detect */
 459        IOMUX_PADS(PAD_EIM_DA9__GPIO3_IO09  | MUX_PAD_CTRL(NO_PAD_CTRL)),
 460};
 461
 462int board_mmc_getcd(struct mmc *mmc)
 463{
 464        struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
 465        int ret = 0;
 466
 467        switch (cfg->esdhc_base) {
 468        case USDHC1_BASE_ADDR:
 469                ret = !gpio_get_value(USDHC1_CD_GPIO);
 470                break;
 471        case USDHC3_BASE_ADDR:
 472                ret = !gpio_get_value(USDHC3_CD_GPIO);
 473                break;
 474        }
 475
 476        return ret;
 477}
 478
 479int board_mmc_init(struct bd_info *bis)
 480{
 481        int ret;
 482        u32 index = 0;
 483
 484        /*
 485         * Following map is done:
 486         * (U-Boot device node)    (Physical Port)
 487         * mmc0                    SOM MicroSD
 488         * mmc1                    Carrier board MicroSD
 489         */
 490        for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) {
 491                switch (index) {
 492                case 0:
 493                        SETUP_IOMUX_PADS(usdhc3_pads);
 494                        usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
 495                        usdhc_cfg[0].max_bus_width = 4;
 496                        gpio_direction_input(USDHC3_CD_GPIO);
 497                        break;
 498                case 1:
 499                        SETUP_IOMUX_PADS(usdhc1_pads);
 500                        usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
 501                        usdhc_cfg[1].max_bus_width = 4;
 502                        gpio_direction_input(USDHC1_CD_GPIO);
 503                        break;
 504                default:
 505                        printf("Warning: you configured more USDHC controllers"
 506                               "(%d) then supported by the board (%d)\n",
 507                               index + 1, CONFIG_SYS_FSL_USDHC_NUM);
 508                        return -EINVAL;
 509                }
 510
 511                ret = fsl_esdhc_initialize(bis, &usdhc_cfg[index]);
 512                if (ret)
 513                        return ret;
 514        }
 515
 516        return 0;
 517}
 518