uboot/board/phytec/pcm058/pcm058.c
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   1/*
   2 * Copyright (C) 2016 Stefano Babic <sbabic@denx.de>
   3 *
   4 * SPDX-License-Identifier:     GPL-2.0+
   5 */
   6
   7/*
   8 * Please note: there are two version of the board
   9 * one with NAND and the other with eMMC.
  10 * Both NAND and eMMC cannot be set because they share the
  11 * same pins (SD4)
  12 */
  13#include <common.h>
  14#include <asm/io.h>
  15#include <asm/arch/clock.h>
  16#include <asm/arch/imx-regs.h>
  17#include <asm/arch/crm_regs.h>
  18#include <asm/arch/mx6-ddr.h>
  19#include <asm/arch/iomux.h>
  20#include <asm/arch/mx6-pins.h>
  21#include <asm/imx-common/iomux-v3.h>
  22#include <asm/imx-common/boot_mode.h>
  23#include <asm/imx-common/mxc_i2c.h>
  24#include <asm/imx-common/spi.h>
  25#include <linux/errno.h>
  26#include <asm/gpio.h>
  27#include <mmc.h>
  28#include <i2c.h>
  29#include <fsl_esdhc.h>
  30#include <nand.h>
  31#include <miiphy.h>
  32#include <netdev.h>
  33#include <asm/arch/sys_proto.h>
  34#include <asm/sections.h>
  35
  36DECLARE_GLOBAL_DATA_PTR;
  37
  38#define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP |                   \
  39        PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |                 \
  40        PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  41
  42#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP |                    \
  43        PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm |                 \
  44        PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  45
  46#define ENET_PAD_CTRL  (PAD_CTL_PUS_100K_UP |                   \
  47        PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
  48
  49#define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
  50                      PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
  51
  52#define I2C_PAD_CTRL  (PAD_CTL_PUS_100K_UP |                    \
  53        PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS |   \
  54        PAD_CTL_ODE | PAD_CTL_SRE_FAST)
  55
  56#define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL)
  57
  58#define ASRC_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP  |     \
  59                      PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
  60
  61#define NAND_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
  62               PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
  63
  64#define ENET_PHY_RESET_GPIO IMX_GPIO_NR(1, 14)
  65#define USDHC1_CD_GPIO  IMX_GPIO_NR(6, 31)
  66#define USER_LED        IMX_GPIO_NR(1, 4)
  67#define IMX6Q_DRIVE_STRENGTH    0x30
  68
  69int dram_init(void)
  70{
  71        gd->ram_size = imx_ddr_size();
  72        return 0;
  73}
  74
  75void board_turn_off_led(void)
  76{
  77        gpio_direction_output(USER_LED, 0);
  78}
  79
  80static iomux_v3_cfg_t const uart1_pads[] = {
  81        MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
  82        MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
  83};
  84
  85static iomux_v3_cfg_t const enet_pads[] = {
  86        MX6_PAD_ENET_MDIO__ENET_MDIO            | MUX_PAD_CTRL(ENET_PAD_CTRL),
  87        MX6_PAD_ENET_MDC__ENET_MDC              | MUX_PAD_CTRL(ENET_PAD_CTRL),
  88        MX6_PAD_RGMII_TXC__RGMII_TXC    | MUX_PAD_CTRL(ENET_PAD_CTRL),
  89        MX6_PAD_RGMII_TD0__RGMII_TD0    | MUX_PAD_CTRL(ENET_PAD_CTRL),
  90        MX6_PAD_RGMII_TD1__RGMII_TD1    | MUX_PAD_CTRL(ENET_PAD_CTRL),
  91        MX6_PAD_RGMII_TD2__RGMII_TD2    | MUX_PAD_CTRL(ENET_PAD_CTRL),
  92        MX6_PAD_RGMII_TD3__RGMII_TD3    | MUX_PAD_CTRL(ENET_PAD_CTRL),
  93        MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL      | MUX_PAD_CTRL(ENET_PAD_CTRL),
  94        MX6_PAD_ENET_REF_CLK__ENET_TX_CLK       | MUX_PAD_CTRL(ENET_PAD_CTRL),
  95        MX6_PAD_RGMII_RXC__RGMII_RXC    | MUX_PAD_CTRL(ENET_PAD_CTRL),
  96        MX6_PAD_RGMII_RD0__RGMII_RD0    | MUX_PAD_CTRL(ENET_PAD_CTRL),
  97        MX6_PAD_RGMII_RD1__RGMII_RD1    | MUX_PAD_CTRL(ENET_PAD_CTRL),
  98        MX6_PAD_RGMII_RD2__RGMII_RD2    | MUX_PAD_CTRL(ENET_PAD_CTRL),
  99        MX6_PAD_RGMII_RD3__RGMII_RD3    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 100        MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL      | MUX_PAD_CTRL(ENET_PAD_CTRL),
 101        MX6_PAD_SD2_DAT1__GPIO1_IO14    | MUX_PAD_CTRL(NO_PAD_CTRL),
 102};
 103
 104static iomux_v3_cfg_t const ecspi1_pads[] = {
 105        MX6_PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
 106        MX6_PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
 107        MX6_PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
 108        MX6_PAD_EIM_D19__GPIO3_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL),
 109};
 110
 111/* NAND */
 112static iomux_v3_cfg_t const nfc_pads[] = {
 113        MX6_PAD_NANDF_CLE__NAND_CLE     | MUX_PAD_CTRL(NAND_PAD_CTRL),
 114        MX6_PAD_NANDF_ALE__NAND_ALE     | MUX_PAD_CTRL(NAND_PAD_CTRL),
 115        MX6_PAD_NANDF_WP_B__NAND_WP_B   | MUX_PAD_CTRL(NAND_PAD_CTRL),
 116        MX6_PAD_NANDF_RB0__NAND_READY_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
 117        MX6_PAD_NANDF_CS0__NAND_CE0_B   | MUX_PAD_CTRL(NAND_PAD_CTRL),
 118        MX6_PAD_NANDF_CS1__NAND_CE1_B   | MUX_PAD_CTRL(NAND_PAD_CTRL),
 119        MX6_PAD_NANDF_CS2__NAND_CE2_B   | MUX_PAD_CTRL(NAND_PAD_CTRL),
 120        MX6_PAD_NANDF_CS3__NAND_CE3_B   | MUX_PAD_CTRL(NAND_PAD_CTRL),
 121        MX6_PAD_SD4_CMD__NAND_RE_B      | MUX_PAD_CTRL(NAND_PAD_CTRL),
 122        MX6_PAD_SD4_CLK__NAND_WE_B      | MUX_PAD_CTRL(NAND_PAD_CTRL),
 123        MX6_PAD_NANDF_D0__NAND_DATA00   | MUX_PAD_CTRL(NAND_PAD_CTRL),
 124        MX6_PAD_NANDF_D1__NAND_DATA01   | MUX_PAD_CTRL(NAND_PAD_CTRL),
 125        MX6_PAD_NANDF_D2__NAND_DATA02   | MUX_PAD_CTRL(NAND_PAD_CTRL),
 126        MX6_PAD_NANDF_D3__NAND_DATA03   | MUX_PAD_CTRL(NAND_PAD_CTRL),
 127        MX6_PAD_NANDF_D4__NAND_DATA04   | MUX_PAD_CTRL(NAND_PAD_CTRL),
 128        MX6_PAD_NANDF_D5__NAND_DATA05   | MUX_PAD_CTRL(NAND_PAD_CTRL),
 129        MX6_PAD_NANDF_D6__NAND_DATA06   | MUX_PAD_CTRL(NAND_PAD_CTRL),
 130        MX6_PAD_NANDF_D7__NAND_DATA07   | MUX_PAD_CTRL(NAND_PAD_CTRL),
 131        MX6_PAD_SD4_DAT0__NAND_DQS      | MUX_PAD_CTRL(NAND_PAD_CTRL),
 132};
 133
 134
 135/* GPIOS */
 136static iomux_v3_cfg_t const gpios_pads[] = {
 137};
 138
 139static struct i2c_pads_info i2c_pad_info2 = {
 140        .scl = {
 141                .i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | I2C_PAD,
 142                .gpio_mode = MX6_PAD_GPIO_5__GPIO1_IO05 | I2C_PAD,
 143                .gp = IMX_GPIO_NR(1, 5)
 144        },
 145        .sda = {
 146                .i2c_mode = MX6_PAD_GPIO_6__I2C3_SDA | I2C_PAD,
 147                .gpio_mode = MX6_PAD_GPIO_6__GPIO1_IO06 | I2C_PAD,
 148                .gp = IMX_GPIO_NR(1, 6)
 149        }
 150};
 151
 152static struct fsl_esdhc_cfg usdhc_cfg[] = {
 153        {.esdhc_base = USDHC1_BASE_ADDR,
 154        .max_bus_width = 4},
 155#ifndef CONFIG_CMD_NAND
 156        {USDHC4_BASE_ADDR},
 157#endif
 158};
 159
 160static iomux_v3_cfg_t const usdhc1_pads[] = {
 161        MX6_PAD_SD1_CLK__SD1_CLK        | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 162        MX6_PAD_SD1_CMD__SD1_CMD        | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 163        MX6_PAD_SD1_DAT0__SD1_DATA0     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 164        MX6_PAD_SD1_DAT1__SD1_DATA1     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 165        MX6_PAD_SD1_DAT2__SD1_DATA2     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 166        MX6_PAD_SD1_DAT3__SD1_DATA3     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 167        MX6_PAD_EIM_BCLK__GPIO6_IO31    | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
 168};
 169
 170#ifndef CONFIG_CMD_NAND
 171static iomux_v3_cfg_t const usdhc4_pads[] = {
 172        MX6_PAD_SD4_CLK__SD4_CLK        | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 173        MX6_PAD_SD4_CMD__SD4_CMD        | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 174        MX6_PAD_SD4_DAT0__SD4_DATA0     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 175        MX6_PAD_SD4_DAT1__SD4_DATA1     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 176        MX6_PAD_SD4_DAT2__SD4_DATA2     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 177        MX6_PAD_SD4_DAT3__SD4_DATA3     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 178        MX6_PAD_SD4_DAT4__SD4_DATA4     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 179        MX6_PAD_SD4_DAT5__SD4_DATA5     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 180        MX6_PAD_SD4_DAT6__SD4_DATA6     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 181        MX6_PAD_SD4_DAT7__SD4_DATA7     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 182};
 183#endif
 184
 185int board_mmc_get_env_dev(int devno)
 186{
 187        return devno - 1;
 188}
 189
 190int board_mmc_getcd(struct mmc *mmc)
 191{
 192        struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
 193        int ret = 0;
 194
 195        switch (cfg->esdhc_base) {
 196        case USDHC1_BASE_ADDR:
 197                ret = !gpio_get_value(USDHC1_CD_GPIO);
 198                break;
 199        case USDHC4_BASE_ADDR:
 200                ret = 1; /* eMMC/uSDHC4 is always present */
 201                break;
 202        }
 203
 204        return ret;
 205}
 206
 207int board_mmc_init(bd_t *bis)
 208{
 209#ifndef CONFIG_SPL_BUILD
 210        int ret;
 211        int i;
 212
 213        for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
 214                switch (i) {
 215                case 0:
 216                        imx_iomux_v3_setup_multiple_pads(
 217                                usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
 218                        gpio_direction_input(USDHC1_CD_GPIO);
 219                        usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
 220                        break;
 221#ifndef CONFIG_CMD_NAND
 222                case 1:
 223                        imx_iomux_v3_setup_multiple_pads(
 224                                usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
 225                        usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
 226                        break;
 227#endif
 228                default:
 229                        printf("Warning: you configured more USDHC controllers"
 230                               "(%d) then supported by the board (%d)\n",
 231                               i + 1, CONFIG_SYS_FSL_USDHC_NUM);
 232                        return -EINVAL;
 233                }
 234
 235                ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
 236                if (ret)
 237                        return ret;
 238        }
 239
 240        return 0;
 241#else
 242        struct src *psrc = (struct src *)SRC_BASE_ADDR;
 243        unsigned reg = readl(&psrc->sbmr1) >> 11;
 244        /*
 245         * Upon reading BOOT_CFG register the following map is done:
 246         * Bit 11 and 12 of BOOT_CFG register can determine the current
 247         * mmc port
 248         * 0x1                  SD1
 249         * 0x2                  SD2
 250         * 0x3                  SD4
 251         */
 252
 253        switch (reg & 0x3) {
 254        case 0x0:
 255                imx_iomux_v3_setup_multiple_pads(
 256                        usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
 257                gpio_direction_input(USDHC1_CD_GPIO);
 258                usdhc_cfg[0].esdhc_base = USDHC1_BASE_ADDR;
 259                usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
 260                usdhc_cfg[0].max_bus_width = 4;
 261                gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
 262                break;
 263        }
 264        return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
 265#endif
 266}
 267
 268static void setup_iomux_uart(void)
 269{
 270        imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
 271}
 272
 273static void setup_iomux_enet(void)
 274{
 275        imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
 276
 277        gpio_direction_output(ENET_PHY_RESET_GPIO, 0);
 278        mdelay(10);
 279        gpio_set_value(ENET_PHY_RESET_GPIO, 1);
 280        mdelay(30);
 281}
 282
 283static void setup_spi(void)
 284{
 285        gpio_request(IMX_GPIO_NR(3, 19), "spi_cs0");
 286        gpio_direction_output(IMX_GPIO_NR(3, 19), 1);
 287
 288        imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
 289
 290        enable_spi_clk(true, 0);
 291}
 292
 293#ifdef CONFIG_CMD_NAND
 294static void setup_gpmi_nand(void)
 295{
 296        struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
 297
 298        /* config gpmi nand iomux */
 299        imx_iomux_v3_setup_multiple_pads(nfc_pads, ARRAY_SIZE(nfc_pads));
 300
 301        /* gate ENFC_CLK_ROOT clock first,before clk source switch */
 302        clrbits_le32(&mxc_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
 303
 304        /* config gpmi and bch clock to 100 MHz */
 305        clrsetbits_le32(&mxc_ccm->cs2cdr,
 306                        MXC_CCM_CS2CDR_ENFC_CLK_PODF_MASK |
 307                        MXC_CCM_CS2CDR_ENFC_CLK_PRED_MASK |
 308                        MXC_CCM_CS2CDR_ENFC_CLK_SEL_MASK,
 309                        MXC_CCM_CS2CDR_ENFC_CLK_PODF(0) |
 310                        MXC_CCM_CS2CDR_ENFC_CLK_PRED(3) |
 311                        MXC_CCM_CS2CDR_ENFC_CLK_SEL(3));
 312
 313        /* enable ENFC_CLK_ROOT clock */
 314        setbits_le32(&mxc_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
 315
 316        /* enable gpmi and bch clock gating */
 317        setbits_le32(&mxc_ccm->CCGR4,
 318                     MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
 319                     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
 320                     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
 321                     MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
 322                     MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_OFFSET);
 323
 324        /* enable apbh clock gating */
 325        setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK);
 326}
 327#endif
 328
 329int board_spi_cs_gpio(unsigned bus, unsigned cs)
 330{
 331        if (bus != 0 || (cs != 0))
 332                return -EINVAL;
 333
 334        return IMX_GPIO_NR(3, 19);
 335}
 336
 337int board_eth_init(bd_t *bis)
 338{
 339        setup_iomux_enet();
 340
 341        return cpu_eth_init(bis);
 342}
 343
 344int board_early_init_f(void)
 345{
 346        setup_iomux_uart();
 347
 348        return 0;
 349}
 350
 351int board_init(void)
 352{
 353        /* address of boot parameters */
 354        gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 355
 356#ifdef CONFIG_SYS_I2C_MXC
 357        setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
 358#endif
 359
 360#ifdef CONFIG_MXC_SPI
 361        setup_spi();
 362#endif
 363
 364#ifdef CONFIG_CMD_NAND
 365        setup_gpmi_nand();
 366#endif
 367        return 0;
 368}
 369
 370
 371#ifdef CONFIG_CMD_BMODE
 372/*
 373 * BOOT_CFG1, BOOT_CFG2, BOOT_CFG3, BOOT_CFG4
 374 * see Table 8-11 and Table 5-9
 375 *  BOOT_CFG1[7] = 1 (boot from NAND)
 376 *  BOOT_CFG1[5] = 0 - raw NAND
 377 *  BOOT_CFG1[4] = 0 - default pad settings
 378 *  BOOT_CFG1[3:2] = 00 - devices = 1
 379 *  BOOT_CFG1[1:0] = 00 - Row Address Cycles = 3
 380 *  BOOT_CFG2[4:3] = 00 - Boot Search Count = 2
 381 *  BOOT_CFG2[2:1] = 01 - Pages In Block = 64
 382 *  BOOT_CFG2[0] = 0 - Reset time 12ms
 383 */
 384static const struct boot_mode board_boot_modes[] = {
 385        /* NAND: 64pages per block, 3 row addr cycles, 2 copies of FCB/DBBT */
 386        {"nand", MAKE_CFGVAL(0x80, 0x02, 0x00, 0x00)},
 387        {"mmc0",  MAKE_CFGVAL(0x40, 0x20, 0x00, 0x00)},
 388        {NULL, 0},
 389};
 390#endif
 391
 392int board_late_init(void)
 393{
 394#ifdef CONFIG_CMD_BMODE
 395        add_board_boot_modes(board_boot_modes);
 396#endif
 397
 398        return 0;
 399}
 400
 401#ifdef CONFIG_SPL_BUILD
 402#include <spl.h>
 403#include <libfdt.h>
 404
 405static const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = {
 406        .dram_sdclk_0 = 0x00000030,
 407        .dram_sdclk_1 = 0x00000030,
 408        .dram_cas = 0x00000030,
 409        .dram_ras = 0x00000030,
 410        .dram_reset = 0x00000030,
 411        .dram_sdcke0 = 0x00000030,
 412        .dram_sdcke1 = 0x00000030,
 413        .dram_sdba2 = 0x00000000,
 414        .dram_sdodt0 = 0x00000030,
 415        .dram_sdodt1 = 0x00000030,
 416        .dram_sdqs0 = 0x00000030,
 417        .dram_sdqs1 = 0x00000030,
 418        .dram_sdqs2 = 0x00000030,
 419        .dram_sdqs3 = 0x00000030,
 420        .dram_sdqs4 = 0x00000030,
 421        .dram_sdqs5 = 0x00000030,
 422        .dram_sdqs6 = 0x00000030,
 423        .dram_sdqs7 = 0x00000030,
 424        .dram_dqm0 = 0x00000030,
 425        .dram_dqm1 = 0x00000030,
 426        .dram_dqm2 = 0x00000030,
 427        .dram_dqm3 = 0x00000030,
 428        .dram_dqm4 = 0x00000030,
 429        .dram_dqm5 = 0x00000030,
 430        .dram_dqm6 = 0x00000030,
 431        .dram_dqm7 = 0x00000030,
 432};
 433
 434static const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = {
 435        .grp_ddr_type =  0x000C0000,
 436        .grp_ddrmode_ctl =  0x00020000,
 437        .grp_ddrpke =  0x00000000,
 438        .grp_addds = IMX6Q_DRIVE_STRENGTH,
 439        .grp_ctlds = IMX6Q_DRIVE_STRENGTH,
 440        .grp_ddrmode =  0x00020000,
 441        .grp_b0ds = IMX6Q_DRIVE_STRENGTH,
 442        .grp_b1ds = IMX6Q_DRIVE_STRENGTH,
 443        .grp_b2ds = IMX6Q_DRIVE_STRENGTH,
 444        .grp_b3ds = IMX6Q_DRIVE_STRENGTH,
 445        .grp_b4ds = IMX6Q_DRIVE_STRENGTH,
 446        .grp_b5ds = IMX6Q_DRIVE_STRENGTH,
 447        .grp_b6ds = IMX6Q_DRIVE_STRENGTH,
 448        .grp_b7ds = IMX6Q_DRIVE_STRENGTH,
 449};
 450
 451static const struct mx6_mmdc_calibration mx6_mmcd_calib = {
 452        .p0_mpwldectrl0 =  0x00140014,
 453        .p0_mpwldectrl1 =  0x000A0015,
 454        .p1_mpwldectrl0 =  0x000A001E,
 455        .p1_mpwldectrl1 =  0x000A0015,
 456        .p0_mpdgctrl0 =  0x43080314,
 457        .p0_mpdgctrl1 =  0x02680300,
 458        .p1_mpdgctrl0 =  0x430C0318,
 459        .p1_mpdgctrl1 =  0x03000254,
 460        .p0_mprddlctl =  0x3A323234,
 461        .p1_mprddlctl =  0x3E3C3242,
 462        .p0_mpwrdlctl =  0x2A2E3632,
 463        .p1_mpwrdlctl =  0x3C323E34,
 464};
 465
 466static struct mx6_ddr3_cfg mem_ddr = {
 467        .mem_speed = 1600,
 468        .density = 2,
 469        .width = 16,
 470        .banks = 8,
 471        .rowaddr = 14,
 472        .coladdr = 10,
 473        .pagesz = 2,
 474        .trcd = 1375,
 475        .trcmin = 4875,
 476        .trasmin = 3500,
 477        .SRT       = 1,
 478};
 479
 480static void ccgr_init(void)
 481{
 482        struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
 483
 484        writel(0x00C03F3F, &ccm->CCGR0);
 485        writel(0x0030FC03, &ccm->CCGR1);
 486        writel(0x0FFFC000, &ccm->CCGR2);
 487        writel(0x3FF00000, &ccm->CCGR3);
 488        writel(0x00FFF300, &ccm->CCGR4);
 489        writel(0x0F0000C3, &ccm->CCGR5);
 490        writel(0x000003FF, &ccm->CCGR6);
 491}
 492
 493static void gpr_init(void)
 494{
 495        struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
 496
 497        /* enable AXI cache for VDOA/VPU/IPU */
 498        writel(0xF00000CF, &iomux->gpr[4]);
 499        /* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
 500        writel(0x007F007F, &iomux->gpr[6]);
 501        writel(0x007F007F, &iomux->gpr[7]);
 502}
 503
 504
 505static void spl_dram_init(void)
 506{
 507        struct mx6_ddr_sysinfo sysinfo = {
 508                /* width of data bus:0=16,1=32,2=64 */
 509                .dsize = 2,
 510                /* config for full 4GB range so that get_mem_size() works */
 511                .cs_density = 32, /* 32Gb per CS */
 512                /* single chip select */
 513                .ncs = 1,
 514                .cs1_mirror = 0,
 515                .rtt_wr = 1 /*DDR3_RTT_60_OHM*/,        /* RTT_Wr = RZQ/4 */
 516                .rtt_nom = 1 /*DDR3_RTT_60_OHM*/,       /* RTT_Nom = RZQ/4 */
 517                .walat = 1,     /* Write additional latency */
 518                .ralat = 5,     /* Read additional latency */
 519                .mif3_mode = 3, /* Command prediction working mode */
 520                .bi_on = 1,     /* Bank interleaving enabled */
 521                .sde_to_rst = 0x10,     /* 14 cycles, 200us (JEDEC default) */
 522                .rst_to_cke = 0x23,     /* 33 cycles, 500us (JEDEC default) */
 523                .ddr_type = DDR_TYPE_DDR3,
 524                .refsel = 1,    /* Refresh cycles at 32KHz */
 525                .refr = 7,      /* 8 refresh commands per refresh cycle */
 526        };
 527
 528        mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs);
 529        mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
 530}
 531
 532void board_boot_order(u32 *spl_boot_list)
 533{
 534        spl_boot_list[0] = spl_boot_device();
 535        printf("Boot device %x\n", spl_boot_list[0]);
 536        switch (spl_boot_list[0]) {
 537        case BOOT_DEVICE_SPI:
 538                spl_boot_list[1] = BOOT_DEVICE_UART;
 539                break;
 540        case BOOT_DEVICE_MMC1:
 541                spl_boot_list[1] = BOOT_DEVICE_SPI;
 542                spl_boot_list[2] = BOOT_DEVICE_UART;
 543                break;
 544        default:
 545                printf("Boot device %x\n", spl_boot_list[0]);
 546        }
 547}
 548
 549void board_init_f(ulong dummy)
 550{
 551#ifdef CONFIG_CMD_NAND
 552        /* Enable NAND */
 553        setup_gpmi_nand();
 554#endif
 555
 556        /* setup clock gating */
 557        ccgr_init();
 558
 559        /* setup AIPS and disable watchdog */
 560        arch_cpu_init();
 561
 562        /* setup AXI */
 563        gpr_init();
 564
 565        board_early_init_f();
 566
 567        /* setup GP timer */
 568        timer_init();
 569
 570        setup_spi();
 571
 572        /* UART clocks enabled and gd valid - init serial console */
 573        preloader_console_init();
 574
 575        /* DDR initialization */
 576        spl_dram_init();
 577
 578        /* Clear the BSS. */
 579        memset(__bss_start, 0, __bss_end - __bss_start);
 580
 581        /* load/boot image from boot device */
 582        board_init_r(NULL, 0);
 583}
 584#endif
 585