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