board/solidrun/mx6cuboxi/mx6cuboxi.c

   1 /*
   2  * Copyright (C) 2015 Freescale Semiconductor, Inc.
   3  *
   4  * Author: Fabio Estevam <fabio.estevam@freescale.com>
   5  *
   6  * Copyright (C) 2013 Jon Nettleton <jon.nettleton@gmail.com>
   7  *
   8  * Based on SPL code from Solidrun tree, which is:
   9  * Author: Tungyi Lin <tungyilin1127@gmail.com>
  10  *
  11  * Derived from EDM_CF_IMX6 code by TechNexion,Inc
  12  * Ported to SolidRun microSOM by Rabeeh Khoury <rabeeh@solid-run.com>
  13  *
  14  * SPDX-License-Identifier:     GPL-2.0+
  15  */
  16
  17 #include <asm/arch/clock.h>
  18 #include <asm/arch/imx-regs.h>
  19 #include <asm/arch/iomux.h>
  20 #include <asm/arch/mx6-pins.h>
  21 #include <asm/arch/mxc_hdmi.h>
  22 #include <asm/errno.h>
  23 #include <asm/gpio.h>
  24 #include <asm/imx-common/iomux-v3.h>
  25 #include <asm/imx-common/video.h>
  26 #include <mmc.h>
  27 #include <fsl_esdhc.h>
  28 #include <malloc.h>
  29 #include <miiphy.h>
  30 #include <netdev.h>
  31 #include <asm/arch/crm_regs.h>
  32 #include <asm/io.h>
  33 #include <asm/arch/sys_proto.h>
  34 #include <spl.h>
  35 #include <usb.h>
  36 #include <usb/ehci-fsl.h>
  37
  38 DECLARE_GLOBAL_DATA_PTR;
  39
  40 #define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP |                   \
  41         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |                 \
  42         PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  43
  44 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP |                    \
  45         PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm |                 \
  46         PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  47
  48 #define ENET_PAD_CTRL  (PAD_CTL_PUS_100K_UP |                   \
  49         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
  50
  51 #define ENET_PAD_CTRL_PD  (PAD_CTL_PUS_100K_DOWN |              \
  52         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
  53
  54 #define ENET_PAD_CTRL_CLK  ((PAD_CTL_PUS_100K_UP & ~PAD_CTL_PKE) | \
  55         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
  56
  57 #define ETH_PHY_RESET   IMX_GPIO_NR(4, 15)
  58 #define USB_H1_VBUS     IMX_GPIO_NR(1, 0)
  59
  60 int dram_init(void)
  61 {
  62         gd->ram_size = imx_ddr_size();
  63         return 0;
  64 }
  65
  66 static iomux_v3_cfg_t const uart1_pads[] = {
  67         IOMUX_PADS(PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
  68         IOMUX_PADS(PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
  69 };
  70
  71 static iomux_v3_cfg_t const usdhc2_pads[] = {
  72         IOMUX_PADS(PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  73         IOMUX_PADS(PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  74         IOMUX_PADS(PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  75         IOMUX_PADS(PAD_SD2_DAT1__SD2_DATA1      | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  76         IOMUX_PADS(PAD_SD2_DAT2__SD2_DATA2      | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  77         IOMUX_PADS(PAD_SD2_DAT3__SD2_DATA3      | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  78 };
  79
  80 static iomux_v3_cfg_t const hb_cbi_sense[] = {
  81         /* These pins are for sensing if it is a CuBox-i or a HummingBoard */
  82         IOMUX_PADS(PAD_KEY_ROW1__GPIO4_IO09  | MUX_PAD_CTRL(UART_PAD_CTRL)),
  83         IOMUX_PADS(PAD_EIM_DA4__GPIO3_IO04   | MUX_PAD_CTRL(UART_PAD_CTRL)),
  84 };
  85
  86 static iomux_v3_cfg_t const usb_pads[] = {
  87         IOMUX_PADS(PAD_GPIO_0__GPIO1_IO00 | MUX_PAD_CTRL(NO_PAD_CTRL)),
  88 };
  89
  90 static void setup_iomux_uart(void)
  91 {
  92         SETUP_IOMUX_PADS(uart1_pads);
  93 }
  94
  95 static struct fsl_esdhc_cfg usdhc_cfg[1] = {
  96         {USDHC2_BASE_ADDR},
  97 };
  98
  99 int board_mmc_getcd(struct mmc *mmc)
 100 {
 101         return 1; /* uSDHC2 is always present */
 102 }
 103
 104 int board_mmc_init(bd_t *bis)
 105 {
 106         SETUP_IOMUX_PADS(usdhc2_pads);
 107         usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR;
 108         usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
 109         gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
 110
 111         return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
 112 }
 113
 114 static iomux_v3_cfg_t const enet_pads[] = {
 115         IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL)),
 116         IOMUX_PADS(PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
 117         /* AR8035 reset */
 118         IOMUX_PADS(PAD_KEY_ROW4__GPIO4_IO15 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
 119         /* AR8035 interrupt */
 120         IOMUX_PADS(PAD_DI0_PIN2__GPIO4_IO18 | MUX_PAD_CTRL(NO_PAD_CTRL)),
 121         /* GPIO16 -> AR8035 25MHz */
 122         IOMUX_PADS(PAD_GPIO_16__ENET_REF_CLK      | MUX_PAD_CTRL(NO_PAD_CTRL)),
 123         IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC       | MUX_PAD_CTRL(NO_PAD_CTRL)),
 124         IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
 125         IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
 126         IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
 127         IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
 128         IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)),
 129         /* AR8035 CLK_25M --> ENET_REF_CLK (V22) */
 130         IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK)),
 131         IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
 132         IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
 133         IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
 134         IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
 135         IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
 136         IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
 137 };
 138
 139 static void setup_iomux_enet(void)
 140 {
 141         SETUP_IOMUX_PADS(enet_pads);
 142
 143         gpio_direction_output(ETH_PHY_RESET, 0);
 144         mdelay(2);
 145         gpio_set_value(ETH_PHY_RESET, 1);
 146 }
 147
 148 int board_phy_config(struct phy_device *phydev)
 149 {
 150         if (phydev->drv->config)
 151                 phydev->drv->config(phydev);
 152
 153         return 0;
 154 }
 155
 156 /* On Cuboxi Ethernet PHY can be located at addresses 0x0 or 0x4 */
 157 #define ETH_PHY_MASK    ((1 << 0x0) | (1 << 0x4))
 158
 159 int board_eth_init(bd_t *bis)
 160 {
 161         struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
 162         struct mii_dev *bus;
 163         struct phy_device *phydev;
 164
 165         int ret = enable_fec_anatop_clock(ENET_25MHZ);
 166         if (ret)
 167                 return ret;
 168
 169         /* set gpr1[ENET_CLK_SEL] */
 170         setbits_le32(&iomuxc_regs->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK);
 171
 172         setup_iomux_enet();
 173
 174         bus = fec_get_miibus(IMX_FEC_BASE, -1);
 175         if (!bus)
 176                 return -EINVAL;
 177
 178         phydev = phy_find_by_mask(bus, ETH_PHY_MASK, PHY_INTERFACE_MODE_RGMII);
 179         if (!phydev) {
 180                 ret = -EINVAL;
 181                 goto free_bus;
 182         }
 183
 184         debug("using phy at address %d\n", phydev->addr);
 185         ret = fec_probe(bis, -1, IMX_FEC_BASE, bus, phydev);
 186         if (ret)
 187                 goto free_phydev;
 188
 189         return 0;
 190
 191 free_phydev:
 192         free(phydev);
 193 free_bus:
 194         free(bus);
 195         return ret;
 196 }
 197
 198 #ifdef CONFIG_VIDEO_IPUV3
 199 static void do_enable_hdmi(struct display_info_t const *dev)
 200 {
 201         imx_enable_hdmi_phy();
 202 }
 203
 204 struct display_info_t const displays[] = {
 205         {
 206                 .bus    = -1,
 207                 .addr   = 0,
 208                 .pixfmt = IPU_PIX_FMT_RGB24,
 209                 .detect = detect_hdmi,
 210                 .enable = do_enable_hdmi,
 211                 .mode   = {
 212                         .name           = "HDMI",
 213                         /* 1024x768@60Hz (VESA)*/
 214                         .refresh        = 60,
 215                         .xres           = 1024,
 216                         .yres           = 768,
 217                         .pixclock       = 15384,
 218                         .left_margin    = 160,
 219                         .right_margin   = 24,
 220                         .upper_margin   = 29,
 221                         .lower_margin   = 3,
 222                         .hsync_len      = 136,
 223                         .vsync_len      = 6,
 224                         .sync           = FB_SYNC_EXT,
 225                         .vmode          = FB_VMODE_NONINTERLACED
 226                 }
 227         }
 228 };
 229
 230 size_t display_count = ARRAY_SIZE(displays);
 231
 232 static int setup_display(void)
 233 {
 234         struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
 235         int reg;
 236         int timeout = 100000;
 237
 238         enable_ipu_clock();
 239         imx_setup_hdmi();
 240
 241         /* set video pll to 455MHz (24MHz * (37+11/12) / 2) */
 242         setbits_le32(&ccm->analog_pll_video, BM_ANADIG_PLL_VIDEO_POWERDOWN);
 243
 244         reg = readl(&ccm->analog_pll_video);
 245         reg &= ~BM_ANADIG_PLL_VIDEO_DIV_SELECT;
 246         reg |= BF_ANADIG_PLL_VIDEO_DIV_SELECT(37);
 247         reg &= ~BM_ANADIG_PLL_VIDEO_POST_DIV_SELECT;
 248         reg |= BF_ANADIG_PLL_VIDEO_POST_DIV_SELECT(1);
 249         writel(reg, &ccm->analog_pll_video);
 250
 251         writel(BF_ANADIG_PLL_VIDEO_NUM_A(11), &ccm->analog_pll_video_num);
 252         writel(BF_ANADIG_PLL_VIDEO_DENOM_B(12), &ccm->analog_pll_video_denom);
 253
 254         reg &= ~BM_ANADIG_PLL_VIDEO_POWERDOWN;
 255         writel(reg, &ccm->analog_pll_video);
 256
 257         while (timeout--)
 258                 if (readl(&ccm->analog_pll_video) & BM_ANADIG_PLL_VIDEO_LOCK)
 259                         break;
 260         if (timeout < 0) {
 261                 printf("Warning: video pll lock timeout!\n");
 262                 return -ETIMEDOUT;
 263         }
 264
 265         reg = readl(&ccm->analog_pll_video);
 266         reg |= BM_ANADIG_PLL_VIDEO_ENABLE;
 267         reg &= ~BM_ANADIG_PLL_VIDEO_BYPASS;
 268         writel(reg, &ccm->analog_pll_video);
 269
 270         /* gate ipu1_di0_clk */
 271         clrbits_le32(&ccm->CCGR3, MXC_CCM_CCGR3_LDB_DI0_MASK);
 272
 273         /* select video_pll clock / 7  for ipu1_di0_clk -> 65MHz pixclock */
 274         reg = readl(&ccm->chsccdr);
 275         reg &= ~(MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_MASK |
 276                  MXC_CCM_CHSCCDR_IPU1_DI0_PODF_MASK |
 277                  MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_MASK);
 278         reg |= (2 << MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_OFFSET) |
 279                (6 << MXC_CCM_CHSCCDR_IPU1_DI0_PODF_OFFSET) |
 280                (0 << MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
 281         writel(reg, &ccm->chsccdr);
 282
 283         /* enable ipu1_di0_clk */
 284         setbits_le32(&ccm->CCGR3, MXC_CCM_CCGR3_LDB_DI0_MASK);
 285
 286         return 0;
 287 }
 288 #endif /* CONFIG_VIDEO_IPUV3 */
 289
 290 #ifdef CONFIG_USB_EHCI_MX6
 291 static void setup_usb(void)
 292 {
 293         SETUP_IOMUX_PADS(usb_pads);
 294 }
 295
 296 int board_ehci_hcd_init(int port)
 297 {
 298         if (port == 1)
 299                 gpio_direction_output(USB_H1_VBUS, 1);
 300
 301         return 0;
 302 }
 303 #endif
 304
 305 int board_early_init_f(void)
 306 {
 307         int ret = 0;
 308         setup_iomux_uart();
 309
 310 #ifdef CONFIG_VIDEO_IPUV3
 311         ret = setup_display();
 312 #endif
 313
 314 #ifdef CONFIG_USB_EHCI_MX6
 315         setup_usb();
 316 #endif
 317         return ret;
 318 }
 319
 320 int board_init(void)
 321 {
 322         /* address of boot parameters */
 323         gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 324
 325         return 0;
 326 }
 327
 328 static bool is_hummingboard(void)
 329 {
 330         int val1, val2;
 331
 332         SETUP_IOMUX_PADS(hb_cbi_sense);
 333
 334         gpio_direction_input(IMX_GPIO_NR(4, 9));
 335         gpio_direction_input(IMX_GPIO_NR(3, 4));
 336
 337         val1 = gpio_get_value(IMX_GPIO_NR(4, 9));
 338         val2 = gpio_get_value(IMX_GPIO_NR(3, 4));
 339
 340         /*
 341          * Machine selection -
 342          * Machine        val1, val2
 343          * -------------------------
 344          * HB rev 3.x     x     0
 345          * CBi            0     1
 346          * HB             1     1
 347          */
 348
 349         if (val2 == 0)
 350                 return true;
 351         else if (val1 == 0)
 352                 return false;
 353         else
 354                 return true;
 355 }
 356
 357 int checkboard(void)
 358 {
 359         if (is_hummingboard())
 360                 puts("Board: MX6 Hummingboard\n");
 361         else
 362                 puts("Board: MX6 Cubox-i\n");
 363
 364         return 0;
 365 }
 366
 367 static bool is_mx6q(void)
 368 {
 369         if (is_cpu_type(MXC_CPU_MX6Q) || is_cpu_type(MXC_CPU_MX6D))
 370                 return true;
 371         else
 372                 return false;
 373 }
 374
 375 int board_late_init(void)
 376 {
 377 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 378         if (is_hummingboard())
 379                 setenv("board_name", "HUMMINGBOARD");
 380         else
 381                 setenv("board_name", "CUBOXI");
 382
 383         if (is_mx6q())
 384                 setenv("board_rev", "MX6Q");
 385         else
 386                 setenv("board_rev", "MX6DL");
 387 #endif
 388
 389         return 0;
 390 }
 391
 392 #ifdef CONFIG_SPL_BUILD
 393 #include <asm/arch/mx6-ddr.h>
 394 static const struct mx6dq_iomux_ddr_regs mx6q_ddr_ioregs = {
 395         .dram_sdclk_0 =  0x00020030,
 396         .dram_sdclk_1 =  0x00020030,
 397         .dram_cas =  0x00020030,
 398         .dram_ras =  0x00020030,
 399         .dram_reset =  0x00020030,
 400         .dram_sdcke0 =  0x00003000,
 401         .dram_sdcke1 =  0x00003000,
 402         .dram_sdba2 =  0x00000000,
 403         .dram_sdodt0 =  0x00003030,
 404         .dram_sdodt1 =  0x00003030,
 405         .dram_sdqs0 =  0x00000030,
 406         .dram_sdqs1 =  0x00000030,
 407         .dram_sdqs2 =  0x00000030,
 408         .dram_sdqs3 =  0x00000030,
 409         .dram_sdqs4 =  0x00000030,
 410         .dram_sdqs5 =  0x00000030,
 411         .dram_sdqs6 =  0x00000030,
 412         .dram_sdqs7 =  0x00000030,
 413         .dram_dqm0 =  0x00020030,
 414         .dram_dqm1 =  0x00020030,
 415         .dram_dqm2 =  0x00020030,
 416         .dram_dqm3 =  0x00020030,
 417         .dram_dqm4 =  0x00020030,
 418         .dram_dqm5 =  0x00020030,
 419         .dram_dqm6 =  0x00020030,
 420         .dram_dqm7 =  0x00020030,
 421 };
 422
 423 static const struct mx6sdl_iomux_ddr_regs mx6dl_ddr_ioregs = {
 424         .dram_sdclk_0 = 0x00000028,
 425         .dram_sdclk_1 = 0x00000028,
 426         .dram_cas =     0x00000028,
 427         .dram_ras =     0x00000028,
 428         .dram_reset =   0x000c0028,
 429         .dram_sdcke0 =  0x00003000,
 430         .dram_sdcke1 =  0x00003000,
 431         .dram_sdba2 =   0x00000000,
 432         .dram_sdodt0 =  0x00003030,
 433         .dram_sdodt1 =  0x00003030,
 434         .dram_sdqs0 =   0x00000028,
 435         .dram_sdqs1 =   0x00000028,
 436         .dram_sdqs2 =   0x00000028,
 437         .dram_sdqs3 =   0x00000028,
 438         .dram_sdqs4 =   0x00000028,
 439         .dram_sdqs5 =   0x00000028,
 440         .dram_sdqs6 =   0x00000028,
 441         .dram_sdqs7 =   0x00000028,
 442         .dram_dqm0 =    0x00000028,
 443         .dram_dqm1 =    0x00000028,
 444         .dram_dqm2 =    0x00000028,
 445         .dram_dqm3 =    0x00000028,
 446         .dram_dqm4 =    0x00000028,
 447         .dram_dqm5 =    0x00000028,
 448         .dram_dqm6 =    0x00000028,
 449         .dram_dqm7 =    0x00000028,
 450 };
 451
 452 static const struct mx6dq_iomux_grp_regs mx6q_grp_ioregs = {
 453         .grp_ddr_type =  0x000C0000,
 454         .grp_ddrmode_ctl =  0x00020000,
 455         .grp_ddrpke =  0x00000000,
 456         .grp_addds =  0x00000030,
 457         .grp_ctlds =  0x00000030,
 458         .grp_ddrmode =  0x00020000,
 459         .grp_b0ds =  0x00000030,
 460         .grp_b1ds =  0x00000030,
 461         .grp_b2ds =  0x00000030,
 462         .grp_b3ds =  0x00000030,
 463         .grp_b4ds =  0x00000030,
 464         .grp_b5ds =  0x00000030,
 465         .grp_b6ds =  0x00000030,
 466         .grp_b7ds =  0x00000030,
 467 };
 468
 469 static const struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = {
 470         .grp_ddr_type = 0x000c0000,
 471         .grp_ddrmode_ctl = 0x00020000,
 472         .grp_ddrpke = 0x00000000,
 473         .grp_addds = 0x00000028,
 474         .grp_ctlds = 0x00000028,
 475         .grp_ddrmode = 0x00020000,
 476         .grp_b0ds = 0x00000028,
 477         .grp_b1ds = 0x00000028,
 478         .grp_b2ds = 0x00000028,
 479         .grp_b3ds = 0x00000028,
 480         .grp_b4ds = 0x00000028,
 481         .grp_b5ds = 0x00000028,
 482         .grp_b6ds = 0x00000028,
 483         .grp_b7ds = 0x00000028,
 484 };
 485
 486 /* microSOM with Dual processor and 1GB memory */
 487 static const struct mx6_mmdc_calibration mx6q_1g_mmcd_calib = {
 488         .p0_mpwldectrl0 =  0x00000000,
 489         .p0_mpwldectrl1 =  0x00000000,
 490         .p1_mpwldectrl0 =  0x00000000,
 491         .p1_mpwldectrl1 =  0x00000000,
 492         .p0_mpdgctrl0 =    0x0314031c,
 493         .p0_mpdgctrl1 =    0x023e0304,
 494         .p1_mpdgctrl0 =    0x03240330,
 495         .p1_mpdgctrl1 =    0x03180260,
 496         .p0_mprddlctl =    0x3630323c,
 497         .p1_mprddlctl =    0x3436283a,
 498         .p0_mpwrdlctl =    0x36344038,
 499         .p1_mpwrdlctl =    0x422a423c,
 500 };
 501
 502 /* microSOM with Quad processor and 2GB memory */
 503 static const struct mx6_mmdc_calibration mx6q_2g_mmcd_calib = {
 504         .p0_mpwldectrl0 =  0x00000000,
 505         .p0_mpwldectrl1 =  0x00000000,
 506         .p1_mpwldectrl0 =  0x00000000,
 507         .p1_mpwldectrl1 =  0x00000000,
 508         .p0_mpdgctrl0 =    0x0314031c,
 509         .p0_mpdgctrl1 =    0x023e0304,
 510         .p1_mpdgctrl0 =    0x03240330,
 511         .p1_mpdgctrl1 =    0x03180260,
 512         .p0_mprddlctl =    0x3630323c,
 513         .p1_mprddlctl =    0x3436283a,
 514         .p0_mpwrdlctl =    0x36344038,
 515         .p1_mpwrdlctl =    0x422a423c,
 516 };
 517
 518 /* microSOM with Solo processor and 512MB memory */
 519 static const struct mx6_mmdc_calibration mx6dl_512m_mmcd_calib = {
 520         .p0_mpwldectrl0 = 0x0045004D,
 521         .p0_mpwldectrl1 = 0x003A0047,
 522         .p0_mpdgctrl0 =   0x023C0224,
 523         .p0_mpdgctrl1 =   0x02000220,
 524         .p0_mprddlctl =   0x44444846,
 525         .p0_mpwrdlctl =   0x32343032,
 526 };
 527
 528 /* microSOM with Dual lite processor and 1GB memory */
 529 static const struct mx6_mmdc_calibration mx6dl_1g_mmcd_calib = {
 530         .p0_mpwldectrl0 =  0x0045004D,
 531         .p0_mpwldectrl1 =  0x003A0047,
 532         .p1_mpwldectrl0 =  0x001F001F,
 533         .p1_mpwldectrl1 =  0x00210035,
 534         .p0_mpdgctrl0 =    0x023C0224,
 535         .p0_mpdgctrl1 =    0x02000220,
 536         .p1_mpdgctrl0 =    0x02200220,
 537         .p1_mpdgctrl1 =    0x02000220,
 538         .p0_mprddlctl =    0x44444846,
 539         .p1_mprddlctl =    0x4042463C,
 540         .p0_mpwrdlctl =    0x32343032,
 541         .p1_mpwrdlctl =    0x36363430,
 542 };
 543
 544 static struct mx6_ddr3_cfg mem_ddr_2g = {
 545         .mem_speed = 1600,
 546         .density   = 2,
 547         .width     = 16,
 548         .banks     = 8,
 549         .rowaddr   = 14,
 550         .coladdr   = 10,
 551         .pagesz    = 2,
 552         .trcd      = 1375,
 553         .trcmin    = 4875,
 554         .trasmin   = 3500,
 555         .SRT       = 1,
 556 };
 557
 558 static struct mx6_ddr3_cfg mem_ddr_4g = {
 559         .mem_speed = 1600,
 560         .density = 4,
 561         .width = 16,
 562         .banks = 8,
 563         .rowaddr = 15,
 564         .coladdr = 10,
 565         .pagesz = 2,
 566         .trcd = 1375,
 567         .trcmin = 4875,
 568         .trasmin = 3500,
 569 };
 570
 571 static void ccgr_init(void)
 572 {
 573         struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
 574
 575         writel(0x00C03F3F, &ccm->CCGR0);
 576         writel(0x0030FC03, &ccm->CCGR1);
 577         writel(0x0FFFC000, &ccm->CCGR2);
 578         writel(0x3FF00000, &ccm->CCGR3);
 579         writel(0x00FFF300, &ccm->CCGR4);
 580         writel(0x0F0000C3, &ccm->CCGR5);
 581         writel(0x000003FF, &ccm->CCGR6);
 582 }
 583
 584 static void gpr_init(void)
 585 {
 586         struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
 587
 588         /* enable AXI cache for VDOA/VPU/IPU */
 589         writel(0xF00000CF, &iomux->gpr[4]);
 590         /* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
 591         writel(0x007F007F, &iomux->gpr[6]);
 592         writel(0x007F007F, &iomux->gpr[7]);
 593 }
 594
 595 /*
 596  * This section requires the differentiation between Solidrun mx6 boards, but
 597  * for now, it will configure only for the mx6dual hummingboard version.
 598  */
 599 static void spl_dram_init(int width)
 600 {
 601         struct mx6_ddr_sysinfo sysinfo = {
 602                 /* width of data bus: 0=16, 1=32, 2=64 */
 603                 .dsize = width / 32,
 604                 /* config for full 4GB range so that get_mem_size() works */
 605                 .cs_density = 32,       /* 32Gb per CS */
 606                 .ncs = 1,               /* single chip select */
 607                 .cs1_mirror = 0,
 608                 .rtt_wr = 1 /*DDR3_RTT_60_OHM*/,        /* RTT_Wr = RZQ/4 */
 609                 .rtt_nom = 1 /*DDR3_RTT_60_OHM*/,       /* RTT_Nom = RZQ/4 */
 610                 .walat = 1,     /* Write additional latency */
 611                 .ralat = 5,     /* Read additional latency */
 612                 .mif3_mode = 3, /* Command prediction working mode */
 613                 .bi_on = 1,     /* Bank interleaving enabled */
 614                 .sde_to_rst = 0x10,     /* 14 cycles, 200us (JEDEC default) */
 615                 .rst_to_cke = 0x23,     /* 33 cycles, 500us (JEDEC default) */
 616         };
 617
 618         if (is_cpu_type(MXC_CPU_MX6D) || is_cpu_type(MXC_CPU_MX6Q))
 619                 mx6dq_dram_iocfg(width, &mx6q_ddr_ioregs, &mx6q_grp_ioregs);
 620         else
 621                 mx6sdl_dram_iocfg(width, &mx6dl_ddr_ioregs, &mx6sdl_grp_ioregs);
 622
 623         if (is_cpu_type(MXC_CPU_MX6D))
 624                 mx6_dram_cfg(&sysinfo, &mx6q_1g_mmcd_calib, &mem_ddr_2g);
 625         else if (is_cpu_type(MXC_CPU_MX6Q))
 626                 mx6_dram_cfg(&sysinfo, &mx6q_2g_mmcd_calib, &mem_ddr_4g);
 627         else if (is_cpu_type(MXC_CPU_MX6DL))
 628                 mx6_dram_cfg(&sysinfo, &mx6q_1g_mmcd_calib, &mem_ddr_2g);
 629         else if (is_cpu_type(MXC_CPU_MX6SOLO))
 630                 mx6_dram_cfg(&sysinfo, &mx6dl_512m_mmcd_calib, &mem_ddr_2g);
 631 }
 632
 633 void board_init_f(ulong dummy)
 634 {
 635         /* setup AIPS and disable watchdog */
 636         arch_cpu_init();
 637
 638         ccgr_init();
 639         gpr_init();
 640
 641         /* iomux and setup of i2c */
 642         board_early_init_f();
 643
 644         /* setup GP timer */
 645         timer_init();
 646
 647         /* UART clocks enabled and gd valid - init serial console */
 648         preloader_console_init();
 649
 650         /* DDR initialization */
 651         if (is_cpu_type(MXC_CPU_MX6SOLO))
 652                 spl_dram_init(32);
 653         else
 654                 spl_dram_init(64);
 655
 656         /* Clear the BSS. */
 657         memset(__bss_start, 0, __bss_end - __bss_start);
 658
 659         /* load/boot image from boot device */
 660         board_init_r(NULL, 0);
 661 }
 662 #endif