board/gateworks/gw_ventana/gw_ventana_spl.c

   1 /*
   2  * Copyright (C) 2014 Gateworks Corporation
   3  * Author: Tim Harvey <tharvey@gateworks.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <asm/io.h>
  10 #include <asm/arch/crm_regs.h>
  11 #include <asm/arch/mx6-ddr.h>
  12 #include <asm/arch/mx6-pins.h>
  13 #include <asm/arch/sys_proto.h>
  14 #include <asm/imx-common/boot_mode.h>
  15 #include <asm/imx-common/iomux-v3.h>
  16 #include <asm/imx-common/mxc_i2c.h>
  17 #include <spl.h>
  18
  19 #include "gsc.h"
  20 #include "common.h"
  21
  22 DECLARE_GLOBAL_DATA_PTR;
  23
  24 #define RTT_NOM_120OHM /* use 120ohm Rtt_nom vs 60ohm (lower power) */
  25 #define GSC_EEPROM_DDR_SIZE     0x2B    /* enum (512,1024,2048) MB */
  26 #define GSC_EEPROM_DDR_WIDTH    0x2D    /* enum (32,64) bit */
  27
  28 /* configure MX6Q/DUAL mmdc DDR io registers */
  29 struct mx6dq_iomux_ddr_regs mx6dq_ddr_ioregs = {
  30         /* SDCLK[0:1], CAS, RAS, Reset: Differential input, 40ohm */
  31         .dram_sdclk_0 = 0x00020030,
  32         .dram_sdclk_1 = 0x00020030,
  33         .dram_cas = 0x00020030,
  34         .dram_ras = 0x00020030,
  35         .dram_reset = 0x00020030,
  36         /* SDCKE[0:1]: 100k pull-up */
  37         .dram_sdcke0 = 0x00003000,
  38         .dram_sdcke1 = 0x00003000,
  39         /* SDBA2: pull-up disabled */
  40         .dram_sdba2 = 0x00000000,
  41         /* SDODT[0:1]: 100k pull-up, 40 ohm */
  42         .dram_sdodt0 = 0x00003030,
  43         .dram_sdodt1 = 0x00003030,
  44         /* SDQS[0:7]: Differential input, 40 ohm */
  45         .dram_sdqs0 = 0x00000030,
  46         .dram_sdqs1 = 0x00000030,
  47         .dram_sdqs2 = 0x00000030,
  48         .dram_sdqs3 = 0x00000030,
  49         .dram_sdqs4 = 0x00000030,
  50         .dram_sdqs5 = 0x00000030,
  51         .dram_sdqs6 = 0x00000030,
  52         .dram_sdqs7 = 0x00000030,
  53
  54         /* DQM[0:7]: Differential input, 40 ohm */
  55         .dram_dqm0 = 0x00020030,
  56         .dram_dqm1 = 0x00020030,
  57         .dram_dqm2 = 0x00020030,
  58         .dram_dqm3 = 0x00020030,
  59         .dram_dqm4 = 0x00020030,
  60         .dram_dqm5 = 0x00020030,
  61         .dram_dqm6 = 0x00020030,
  62         .dram_dqm7 = 0x00020030,
  63 };
  64
  65 /* configure MX6Q/DUAL mmdc GRP io registers */
  66 struct mx6dq_iomux_grp_regs mx6dq_grp_ioregs = {
  67         /* DDR3 */
  68         .grp_ddr_type = 0x000c0000,
  69         .grp_ddrmode_ctl = 0x00020000,
  70         /* disable DDR pullups */
  71         .grp_ddrpke = 0x00000000,
  72         /* ADDR[00:16], SDBA[0:1]: 40 ohm */
  73         .grp_addds = 0x00000030,
  74         /* CS0/CS1/SDBA2/CKE0/CKE1/SDWE: 40 ohm */
  75         .grp_ctlds = 0x00000030,
  76         /* DATA[00:63]: Differential input, 40 ohm */
  77         .grp_ddrmode = 0x00020000,
  78         .grp_b0ds = 0x00000030,
  79         .grp_b1ds = 0x00000030,
  80         .grp_b2ds = 0x00000030,
  81         .grp_b3ds = 0x00000030,
  82         .grp_b4ds = 0x00000030,
  83         .grp_b5ds = 0x00000030,
  84         .grp_b6ds = 0x00000030,
  85         .grp_b7ds = 0x00000030,
  86 };
  87
  88 /* configure MX6SOLO/DUALLITE mmdc DDR io registers */
  89 struct mx6sdl_iomux_ddr_regs mx6sdl_ddr_ioregs = {
  90         /* SDCLK[0:1], CAS, RAS, Reset: Differential input, 40ohm */
  91         .dram_sdclk_0 = 0x00020030,
  92         .dram_sdclk_1 = 0x00020030,
  93         .dram_cas = 0x00020030,
  94         .dram_ras = 0x00020030,
  95         .dram_reset = 0x00020030,
  96         /* SDCKE[0:1]: 100k pull-up */
  97         .dram_sdcke0 = 0x00003000,
  98         .dram_sdcke1 = 0x00003000,
  99         /* SDBA2: pull-up disabled */
 100         .dram_sdba2 = 0x00000000,
 101         /* SDODT[0:1]: 100k pull-up, 40 ohm */
 102         .dram_sdodt0 = 0x00003030,
 103         .dram_sdodt1 = 0x00003030,
 104         /* SDQS[0:7]: Differential input, 40 ohm */
 105         .dram_sdqs0 = 0x00000030,
 106         .dram_sdqs1 = 0x00000030,
 107         .dram_sdqs2 = 0x00000030,
 108         .dram_sdqs3 = 0x00000030,
 109         .dram_sdqs4 = 0x00000030,
 110         .dram_sdqs5 = 0x00000030,
 111         .dram_sdqs6 = 0x00000030,
 112         .dram_sdqs7 = 0x00000030,
 113
 114         /* DQM[0:7]: Differential input, 40 ohm */
 115         .dram_dqm0 = 0x00020030,
 116         .dram_dqm1 = 0x00020030,
 117         .dram_dqm2 = 0x00020030,
 118         .dram_dqm3 = 0x00020030,
 119         .dram_dqm4 = 0x00020030,
 120         .dram_dqm5 = 0x00020030,
 121         .dram_dqm6 = 0x00020030,
 122         .dram_dqm7 = 0x00020030,
 123 };
 124
 125 /* configure MX6SOLO/DUALLITE mmdc GRP io registers */
 126 struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = {
 127         /* DDR3 */
 128         .grp_ddr_type = 0x000c0000,
 129         /* SDQS[0:7]: Differential input, 40 ohm */
 130         .grp_ddrmode_ctl = 0x00020000,
 131         /* disable DDR pullups */
 132         .grp_ddrpke = 0x00000000,
 133         /* ADDR[00:16], SDBA[0:1]: 40 ohm */
 134         .grp_addds = 0x00000030,
 135         /* CS0/CS1/SDBA2/CKE0/CKE1/SDWE: 40 ohm */
 136         .grp_ctlds = 0x00000030,
 137         /* DATA[00:63]: Differential input, 40 ohm */
 138         .grp_ddrmode = 0x00020000,
 139         .grp_b0ds = 0x00000030,
 140         .grp_b1ds = 0x00000030,
 141         .grp_b2ds = 0x00000030,
 142         .grp_b3ds = 0x00000030,
 143         .grp_b4ds = 0x00000030,
 144         .grp_b5ds = 0x00000030,
 145         .grp_b6ds = 0x00000030,
 146         .grp_b7ds = 0x00000030,
 147 };
 148
 149 /* MT41K64M16JT-125 (1Gb density) */
 150 static struct mx6_ddr3_cfg mt41k64m16jt_125 = {
 151         .mem_speed = 1600,
 152         .density = 1,
 153         .width = 16,
 154         .banks = 8,
 155         .rowaddr = 13,
 156         .coladdr = 10,
 157         .pagesz = 2,
 158         .trcd = 1375,
 159         .trcmin = 4875,
 160         .trasmin = 3500,
 161 };
 162
 163 /* MT41K128M16JT-125 (2Gb density) */
 164 static struct mx6_ddr3_cfg mt41k128m16jt_125 = {
 165         .mem_speed = 1600,
 166         .density = 2,
 167         .width = 16,
 168         .banks = 8,
 169         .rowaddr = 14,
 170         .coladdr = 10,
 171         .pagesz = 2,
 172         .trcd = 1375,
 173         .trcmin = 4875,
 174         .trasmin = 3500,
 175 };
 176
 177 /* MT41K256M16HA-125 (4Gb density) */
 178 static struct mx6_ddr3_cfg mt41k256m16ha_125 = {
 179         .mem_speed = 1600,
 180         .density = 4,
 181         .width = 16,
 182         .banks = 8,
 183         .rowaddr = 15,
 184         .coladdr = 10,
 185         .pagesz = 2,
 186         .trcd = 1375,
 187         .trcmin = 4875,
 188         .trasmin = 3500,
 189 };
 190
 191 /*
 192  * calibration - these are the various CPU/DDR3 combinations we support
 193  */
 194 static struct mx6_mmdc_calibration mx6sdl_64x16_mmdc_calib = {
 195         /* write leveling calibration determine */
 196         .p0_mpwldectrl0 = 0x004C004E,
 197         .p0_mpwldectrl1 = 0x00440044,
 198         /* Read DQS Gating calibration */
 199         .p0_mpdgctrl0 = 0x42440247,
 200         .p0_mpdgctrl1 = 0x02310232,
 201         /* Read Calibration: DQS delay relative to DQ read access */
 202         .p0_mprddlctl = 0x45424746,
 203         /* Write Calibration: DQ/DM delay relative to DQS write access */
 204         .p0_mpwrdlctl = 0x33382C31,
 205 };
 206
 207 static struct mx6_mmdc_calibration mx6dq_256x16_mmdc_calib = {
 208         /* write leveling calibration determine */
 209         .p0_mpwldectrl0 = 0x001B0016,
 210         .p0_mpwldectrl1 = 0x000C000E,
 211         /* Read DQS Gating calibration */
 212         .p0_mpdgctrl0 = 0x4324033A,
 213         .p0_mpdgctrl1 = 0x00000000,
 214         /* Read Calibration: DQS delay relative to DQ read access */
 215         .p0_mprddlctl = 0x40403438,
 216         /* Write Calibration: DQ/DM delay relative to DQS write access */
 217         .p0_mpwrdlctl = 0x40403D36,
 218 };
 219
 220 static struct mx6_mmdc_calibration mx6sdl_256x16_mmdc_calib = {
 221         /* write leveling calibration determine */
 222         .p0_mpwldectrl0 = 0x00420043,
 223         .p0_mpwldectrl1 = 0x0016001A,
 224         /* Read DQS Gating calibration */
 225         .p0_mpdgctrl0 = 0x4238023B,
 226         .p0_mpdgctrl1 = 0x00000000,
 227         /* Read Calibration: DQS delay relative to DQ read access */
 228         .p0_mprddlctl = 0x40404849,
 229         /* Write Calibration: DQ/DM delay relative to DQS write access */
 230         .p0_mpwrdlctl = 0x40402E2F,
 231 };
 232
 233 static struct mx6_mmdc_calibration mx6dq_128x32_mmdc_calib = {
 234         /* write leveling calibration determine */
 235         .p0_mpwldectrl0 = 0x00190017,
 236         .p0_mpwldectrl1 = 0x00140026,
 237         /* Read DQS Gating calibration */
 238         .p0_mpdgctrl0 = 0x43380347,
 239         .p0_mpdgctrl1 = 0x433C034D,
 240         /* Read Calibration: DQS delay relative to DQ read access */
 241         .p0_mprddlctl = 0x3C313539,
 242         /* Write Calibration: DQ/DM delay relative to DQS write access */
 243         .p0_mpwrdlctl = 0x36393C39,
 244 };
 245
 246 static struct mx6_mmdc_calibration mx6sdl_128x32_mmdc_calib = {
 247         /* write leveling calibration determine */
 248         .p0_mpwldectrl0 = 0x003C003C,
 249         .p0_mpwldectrl1 = 0x001F002A,
 250         /* Read DQS Gating calibration */
 251         .p0_mpdgctrl0 = 0x42410244,
 252         .p0_mpdgctrl1 = 0x4234023A,
 253         /* Read Calibration: DQS delay relative to DQ read access */
 254         .p0_mprddlctl = 0x484A4C4B,
 255         /* Write Calibration: DQ/DM delay relative to DQS write access */
 256         .p0_mpwrdlctl = 0x33342B32,
 257 };
 258
 259 static struct mx6_mmdc_calibration mx6dq_128x64_mmdc_calib = {
 260         /* write leveling calibration determine */
 261         .p0_mpwldectrl0 = 0x00190017,
 262         .p0_mpwldectrl1 = 0x00140026,
 263         .p1_mpwldectrl0 = 0x0021001C,
 264         .p1_mpwldectrl1 = 0x0011001D,
 265         /* Read DQS Gating calibration */
 266         .p0_mpdgctrl0 = 0x43380347,
 267         .p0_mpdgctrl1 = 0x433C034D,
 268         .p1_mpdgctrl0 = 0x032C0324,
 269         .p1_mpdgctrl1 = 0x03310232,
 270         /* Read Calibration: DQS delay relative to DQ read access */
 271         .p0_mprddlctl = 0x3C313539,
 272         .p1_mprddlctl = 0x37343141,
 273         /* Write Calibration: DQ/DM delay relative to DQS write access */
 274         .p0_mpwrdlctl = 0x36393C39,
 275         .p1_mpwrdlctl = 0x42344438,
 276 };
 277
 278 static struct mx6_mmdc_calibration mx6sdl_128x64_mmdc_calib = {
 279         /* write leveling calibration determine */
 280         .p0_mpwldectrl0 = 0x003C003C,
 281         .p0_mpwldectrl1 = 0x001F002A,
 282         .p1_mpwldectrl0 = 0x00330038,
 283         .p1_mpwldectrl1 = 0x0022003F,
 284         /* Read DQS Gating calibration */
 285         .p0_mpdgctrl0 = 0x42410244,
 286         .p0_mpdgctrl1 = 0x4234023A,
 287         .p1_mpdgctrl0 = 0x022D022D,
 288         .p1_mpdgctrl1 = 0x021C0228,
 289         /* Read Calibration: DQS delay relative to DQ read access */
 290         .p0_mprddlctl = 0x484A4C4B,
 291         .p1_mprddlctl = 0x4B4D4E4B,
 292         /* Write Calibration: DQ/DM delay relative to DQS write access */
 293         .p0_mpwrdlctl = 0x33342B32,
 294         .p1_mpwrdlctl = 0x3933332B,
 295 };
 296
 297 static struct mx6_mmdc_calibration mx6dq_256x32_mmdc_calib = {
 298         /* write leveling calibration determine */
 299         .p0_mpwldectrl0 = 0x001E001A,
 300         .p0_mpwldectrl1 = 0x0026001F,
 301         /* Read DQS Gating calibration */
 302         .p0_mpdgctrl0 = 0x43370349,
 303         .p0_mpdgctrl1 = 0x032D0327,
 304         /* Read Calibration: DQS delay relative to DQ read access */
 305         .p0_mprddlctl = 0x3D303639,
 306         /* Write Calibration: DQ/DM delay relative to DQS write access */
 307         .p0_mpwrdlctl = 0x32363934,
 308 };
 309
 310 static struct mx6_mmdc_calibration mx6sdl_256x32_mmdc_calib = {
 311         /* write leveling calibration determine */
 312         .p0_mpwldectrl0 = 0X00480047,
 313         .p0_mpwldectrl1 = 0X003D003F,
 314         /* Read DQS Gating calibration */
 315         .p0_mpdgctrl0 = 0X423E0241,
 316         .p0_mpdgctrl1 = 0X022B022C,
 317         /* Read Calibration: DQS delay relative to DQ read access */
 318         .p0_mprddlctl = 0X49454A4A,
 319         /* Write Calibration: DQ/DM delay relative to DQS write access */
 320         .p0_mpwrdlctl = 0X2E372C32,
 321 };
 322
 323 static struct mx6_mmdc_calibration mx6dq_256x64_mmdc_calib = {
 324         /* write leveling calibration determine */
 325         .p0_mpwldectrl0 = 0X00220021,
 326         .p0_mpwldectrl1 = 0X00200030,
 327         .p1_mpwldectrl0 = 0X002D0027,
 328         .p1_mpwldectrl1 = 0X00150026,
 329         /* Read DQS Gating calibration */
 330         .p0_mpdgctrl0 = 0x43330342,
 331         .p0_mpdgctrl1 = 0x0339034A,
 332         .p1_mpdgctrl0 = 0x032F0325,
 333         .p1_mpdgctrl1 = 0x032F022E,
 334         /* Read Calibration: DQS delay relative to DQ read access */
 335         .p0_mprddlctl = 0X3A2E3437,
 336         .p1_mprddlctl = 0X35312F3F,
 337         /* Write Calibration: DQ/DM delay relative to DQS write access */
 338         .p0_mpwrdlctl = 0X33363B37,
 339         .p1_mpwrdlctl = 0X40304239,
 340 };
 341
 342 static void spl_dram_init(int width, int size_mb, int board_model)
 343 {
 344         struct mx6_ddr3_cfg *mem = NULL;
 345         struct mx6_mmdc_calibration *calib = NULL;
 346         struct mx6_ddr_sysinfo sysinfo = {
 347                 /* width of data bus:0=16,1=32,2=64 */
 348                 .dsize = width/32,
 349                 /* config for full 4GB range so that get_mem_size() works */
 350                 .cs_density = 32, /* 32Gb per CS */
 351                 /* single chip select */
 352                 .ncs = 1,
 353                 .cs1_mirror = 0,
 354                 .rtt_wr = 1 /*DDR3_RTT_60_OHM*/,        /* RTT_Wr = RZQ/4 */
 355 #ifdef RTT_NOM_120OHM
 356                 .rtt_nom = 2 /*DDR3_RTT_120_OHM*/,      /* RTT_Nom = RZQ/2 */
 357 #else
 358                 .rtt_nom = 1 /*DDR3_RTT_60_OHM*/,       /* RTT_Nom = RZQ/4 */
 359 #endif
 360                 .walat = 1,     /* Write additional latency */
 361                 .ralat = 5,     /* Read additional latency */
 362                 .mif3_mode = 3, /* Command prediction working mode */
 363                 .bi_on = 1,     /* Bank interleaving enabled */
 364                 .sde_to_rst = 0x10,     /* 14 cycles, 200us (JEDEC default) */
 365                 .rst_to_cke = 0x23,     /* 33 cycles, 500us (JEDEC default) */
 366                 .pd_fast_exit = 1, /* enable precharge power-down fast exit */
 367         };
 368
 369         /*
 370          * MMDC Calibration requires the following data:
 371          *   mx6_mmdc_calibration - board-specific calibration (routing delays)
 372          *      these calibration values depend on board routing, SoC, and DDR
 373          *   mx6_ddr_sysinfo - board-specific memory architecture (width/cs/etc)
 374          *   mx6_ddr_cfg - chip specific timing/layout details
 375          */
 376         if (width == 16 && size_mb == 128) {
 377                 mem = &mt41k64m16jt_125;
 378                 if (is_cpu_type(MXC_CPU_MX6Q))
 379                         ;
 380                 else
 381                         calib = &mx6sdl_64x16_mmdc_calib;
 382                 debug("1gB density\n");
 383         } else if (width == 16 && size_mb == 256) {
 384                 /* 1x 2Gb density chip - same calib as 2x 2Gb */
 385                 mem = &mt41k128m16jt_125;
 386                 if (is_cpu_type(MXC_CPU_MX6Q))
 387                         calib = &mx6dq_128x32_mmdc_calib;
 388                 else
 389                         calib = &mx6sdl_128x32_mmdc_calib;
 390                 debug("2gB density\n");
 391         } else if (width == 16 && size_mb == 512) {
 392                 mem = &mt41k256m16ha_125;
 393                 if (is_cpu_type(MXC_CPU_MX6Q))
 394                         calib = &mx6dq_256x16_mmdc_calib;
 395                 else
 396                         calib = &mx6sdl_256x16_mmdc_calib;
 397                 debug("4gB density\n");
 398         } else if (width == 32 && size_mb == 256) {
 399                 /* Same calib as width==16, size==128 */
 400                 mem = &mt41k64m16jt_125;
 401                 if (is_cpu_type(MXC_CPU_MX6Q))
 402                         ;
 403                 else
 404                         calib = &mx6sdl_64x16_mmdc_calib;
 405                 debug("1gB density\n");
 406         } else if (width == 32 && size_mb == 512) {
 407                 mem = &mt41k128m16jt_125;
 408                 if (is_cpu_type(MXC_CPU_MX6Q))
 409                         calib = &mx6dq_128x32_mmdc_calib;
 410                 else
 411                         calib = &mx6sdl_128x32_mmdc_calib;
 412                 debug("2gB density\n");
 413         }  else if (width == 32 && size_mb == 1024) {
 414                 mem = &mt41k256m16ha_125;
 415                 if (is_cpu_type(MXC_CPU_MX6Q))
 416                         calib = &mx6dq_256x32_mmdc_calib;
 417                 else
 418                         calib = &mx6sdl_256x32_mmdc_calib;
 419                 debug("4gB density\n");
 420         } else if (width == 64 && size_mb == 512) {
 421                 mem = &mt41k64m16jt_125;
 422                 debug("1gB density\n");
 423         } else if (width == 64 && size_mb == 1024) {
 424                 mem = &mt41k128m16jt_125;
 425                 if (is_cpu_type(MXC_CPU_MX6Q))
 426                         calib = &mx6dq_128x64_mmdc_calib;
 427                 else
 428                         calib = &mx6sdl_128x64_mmdc_calib;
 429                 debug("2gB density\n");
 430         } else if (width == 64 && size_mb == 2048) {
 431                 mem = &mt41k256m16ha_125;
 432                 if (is_cpu_type(MXC_CPU_MX6Q))
 433                         calib = &mx6dq_256x64_mmdc_calib;
 434                 debug("4gB density\n");
 435         }
 436
 437         if (!(mem && calib)) {
 438                 puts("Error: Invalid Calibration/Board Configuration\n");
 439                 printf("MEM    : %s\n", mem ? "OKAY" : "NULL");
 440                 printf("CALIB  : %s\n", calib ? "OKAY" : "NULL");
 441                 printf("CPUTYPE: %s\n",
 442                        is_cpu_type(MXC_CPU_MX6Q) ? "IMX6Q" : "IMX6DL");
 443                 printf("SIZE_MB: %d\n", size_mb);
 444                 printf("WIDTH  : %d\n", width);
 445                 hang();
 446         }
 447
 448         if (is_cpu_type(MXC_CPU_MX6Q))
 449                 mx6dq_dram_iocfg(width, &mx6dq_ddr_ioregs,
 450                                  &mx6dq_grp_ioregs);
 451         else
 452                 mx6sdl_dram_iocfg(width, &mx6sdl_ddr_ioregs,
 453                                   &mx6sdl_grp_ioregs);
 454         mx6_dram_cfg(&sysinfo, calib, mem);
 455 }
 456
 457 static void ccgr_init(void)
 458 {
 459         struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
 460
 461         writel(0x00C03F3F, &ccm->CCGR0);
 462         writel(0x0030FC03, &ccm->CCGR1);
 463         writel(0x0FFFC000, &ccm->CCGR2);
 464         writel(0x3FF00000, &ccm->CCGR3);
 465         writel(0xFFFFF300, &ccm->CCGR4);        /* enable NAND/GPMI/BCH clks */
 466         writel(0x0F0000C3, &ccm->CCGR5);
 467         writel(0x000003FF, &ccm->CCGR6);
 468 }
 469
 470 static void gpr_init(void)
 471 {
 472         struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
 473
 474         /* enable AXI cache for VDOA/VPU/IPU */
 475         writel(0xF00000CF, &iomux->gpr[4]);
 476         /* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
 477         writel(0x007F007F, &iomux->gpr[6]);
 478         writel(0x007F007F, &iomux->gpr[7]);
 479 }
 480
 481 /*
 482  * called from C runtime startup code (arch/arm/lib/crt0.S:_main)
 483  * - we have a stack and a place to store GD, both in SRAM
 484  * - no variable global data is available
 485  */
 486 void board_init_f(ulong dummy)
 487 {
 488         struct ventana_board_info ventana_info;
 489         int board_model;
 490
 491         /* setup clock gating */
 492         ccgr_init();
 493
 494         /* setup AIPS and disable watchdog */
 495         arch_cpu_init();
 496
 497         /* setup AXI */
 498         gpr_init();
 499
 500         /* iomux and setup of i2c */
 501         setup_iomux_uart();
 502         setup_ventana_i2c();
 503
 504         /* setup GP timer */
 505         timer_init();
 506
 507         /* UART clocks enabled and gd valid - init serial console */
 508         preloader_console_init();
 509
 510         /* read/validate EEPROM info to determine board model and SDRAM cfg */
 511         board_model = read_eeprom(CONFIG_I2C_GSC, &ventana_info);
 512
 513         /* configure model-specific gpio */
 514         setup_iomux_gpio(board_model, &ventana_info);
 515
 516         /* provide some some default: 32bit 128MB */
 517         if (GW_UNKNOWN == board_model) {
 518                 ventana_info.sdram_width = 2;
 519                 ventana_info.sdram_size = 3;
 520         }
 521
 522         /* configure MMDC for SDRAM width/size and per-model calibration */
 523         spl_dram_init(8 << ventana_info.sdram_width,
 524                       16 << ventana_info.sdram_size,
 525                       board_model);
 526
 527         /* Clear the BSS. */
 528         memset(__bss_start, 0, __bss_end - __bss_start);
 529
 530         /* disable boot watchdog */
 531         gsc_boot_wd_disable();
 532 }
 533
 534 /* called from board_init_r after gd setup if CONFIG_SPL_BOARD_INIT defined */
 535 /* its our chance to print info about boot device */
 536 void spl_board_init(void)
 537 {
 538         /* determine boot device from SRC_SBMR1 (BOOT_CFG[4:1]) or SRC_GPR9 */
 539         u32 boot_device = spl_boot_device();
 540
 541         switch (boot_device) {
 542         case BOOT_DEVICE_MMC1:
 543                 puts("Booting from MMC\n");
 544                 break;
 545         case BOOT_DEVICE_NAND:
 546                 puts("Booting from NAND\n");
 547                 break;
 548         case BOOT_DEVICE_SATA:
 549                 puts("Booting from SATA\n");
 550                 break;
 551         default:
 552                 puts("Unknown boot device\n");
 553         }
 554 }
 555
 556 void reset_cpu(ulong addr)
 557 {
 558 }