board/solidrun/mx6cuboxi/mx6cuboxi.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2015 Freescale Semiconductor, Inc.
   4  *
   5  * Author: Fabio Estevam <fabio.estevam@freescale.com>
   6  *
   7  * Copyright (C) 2013 Jon Nettleton <jon.nettleton@gmail.com>
   8  *
   9  * Based on SPL code from Solidrun tree, which is:
  10  * Author: Tungyi Lin <tungyilin1127@gmail.com>
  11  *
  12  * Derived from EDM_CF_IMX6 code by TechNexion,Inc
  13  * Ported to SolidRun microSOM by Rabeeh Khoury <rabeeh@solid-run.com>
  14  */
  15
  16 #include <asm/arch/clock.h>
  17 #include <asm/arch/imx-regs.h>
  18 #include <asm/arch/iomux.h>
  19 #include <asm/arch/mx6-pins.h>
  20 #include <asm/arch/mxc_hdmi.h>
  21 #include <linux/errno.h>
  22 #include <asm/gpio.h>
  23 #include <asm/mach-imx/iomux-v3.h>
  24 #include <asm/mach-imx/sata.h>
  25 #include <asm/mach-imx/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-ci.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         IOMUX_PADS(PAD_ENET_RXD0__GPIO1_IO27 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
 138         IOMUX_PADS(PAD_ENET_RXD1__GPIO1_IO26 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
 139 };
 140
 141 static void setup_iomux_enet(void)
 142 {
 143         SETUP_IOMUX_PADS(enet_pads);
 144
 145         gpio_direction_output(ETH_PHY_RESET, 0);
 146         mdelay(10);
 147         gpio_set_value(ETH_PHY_RESET, 1);
 148         udelay(100);
 149 }
 150
 151 int board_phy_config(struct phy_device *phydev)
 152 {
 153         if (phydev->drv->config)
 154                 phydev->drv->config(phydev);
 155
 156         return 0;
 157 }
 158
 159 /* On Cuboxi Ethernet PHY can be located at addresses 0x0 or 0x4 */
 160 #define ETH_PHY_MASK    ((1 << 0x0) | (1 << 0x4))
 161
 162 int board_eth_init(bd_t *bis)
 163 {
 164         struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
 165         struct mii_dev *bus;
 166         struct phy_device *phydev;
 167
 168         int ret = enable_fec_anatop_clock(0, ENET_25MHZ);
 169         if (ret)
 170                 return ret;
 171
 172         /* set gpr1[ENET_CLK_SEL] */
 173         setbits_le32(&iomuxc_regs->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK);
 174
 175         setup_iomux_enet();
 176
 177         bus = fec_get_miibus(IMX_FEC_BASE, -1);
 178         if (!bus)
 179                 return -EINVAL;
 180
 181         phydev = phy_find_by_mask(bus, ETH_PHY_MASK, PHY_INTERFACE_MODE_RGMII);
 182         if (!phydev) {
 183                 ret = -EINVAL;
 184                 goto free_bus;
 185         }
 186
 187         debug("using phy at address %d\n", phydev->addr);
 188         ret = fec_probe(bis, -1, IMX_FEC_BASE, bus, phydev);
 189         if (ret)
 190                 goto free_phydev;
 191
 192         return 0;
 193
 194 free_phydev:
 195         free(phydev);
 196 free_bus:
 197         free(bus);
 198         return ret;
 199 }
 200
 201 #ifdef CONFIG_VIDEO_IPUV3
 202 static void do_enable_hdmi(struct display_info_t const *dev)
 203 {
 204         imx_enable_hdmi_phy();
 205 }
 206
 207 struct display_info_t const displays[] = {
 208         {
 209                 .bus    = -1,
 210                 .addr   = 0,
 211                 .pixfmt = IPU_PIX_FMT_RGB24,
 212                 .detect = detect_hdmi,
 213                 .enable = do_enable_hdmi,
 214                 .mode   = {
 215                         .name           = "HDMI",
 216                         /* 1024x768@60Hz (VESA)*/
 217                         .refresh        = 60,
 218                         .xres           = 1024,
 219                         .yres           = 768,
 220                         .pixclock       = 15384,
 221                         .left_margin    = 160,
 222                         .right_margin   = 24,
 223                         .upper_margin   = 29,
 224                         .lower_margin   = 3,
 225                         .hsync_len      = 136,
 226                         .vsync_len      = 6,
 227                         .sync           = FB_SYNC_EXT,
 228                         .vmode          = FB_VMODE_NONINTERLACED
 229                 }
 230         }
 231 };
 232
 233 size_t display_count = ARRAY_SIZE(displays);
 234
 235 static int setup_display(void)
 236 {
 237         struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
 238         int reg;
 239         int timeout = 100000;
 240
 241         enable_ipu_clock();
 242         imx_setup_hdmi();
 243
 244         /* set video pll to 455MHz (24MHz * (37+11/12) / 2) */
 245         setbits_le32(&ccm->analog_pll_video, BM_ANADIG_PLL_VIDEO_POWERDOWN);
 246
 247         reg = readl(&ccm->analog_pll_video);
 248         reg &= ~BM_ANADIG_PLL_VIDEO_DIV_SELECT;
 249         reg |= BF_ANADIG_PLL_VIDEO_DIV_SELECT(37);
 250         reg &= ~BM_ANADIG_PLL_VIDEO_POST_DIV_SELECT;
 251         reg |= BF_ANADIG_PLL_VIDEO_POST_DIV_SELECT(1);
 252         writel(reg, &ccm->analog_pll_video);
 253
 254         writel(BF_ANADIG_PLL_VIDEO_NUM_A(11), &ccm->analog_pll_video_num);
 255         writel(BF_ANADIG_PLL_VIDEO_DENOM_B(12), &ccm->analog_pll_video_denom);
 256
 257         reg &= ~BM_ANADIG_PLL_VIDEO_POWERDOWN;
 258         writel(reg, &ccm->analog_pll_video);
 259
 260         while (timeout--)
 261                 if (readl(&ccm->analog_pll_video) & BM_ANADIG_PLL_VIDEO_LOCK)
 262                         break;
 263         if (timeout < 0) {
 264                 printf("Warning: video pll lock timeout!\n");
 265                 return -ETIMEDOUT;
 266         }
 267
 268         reg = readl(&ccm->analog_pll_video);
 269         reg |= BM_ANADIG_PLL_VIDEO_ENABLE;
 270         reg &= ~BM_ANADIG_PLL_VIDEO_BYPASS;
 271         writel(reg, &ccm->analog_pll_video);
 272
 273         /* gate ipu1_di0_clk */
 274         clrbits_le32(&ccm->CCGR3, MXC_CCM_CCGR3_LDB_DI0_MASK);
 275
 276         /* select video_pll clock / 7  for ipu1_di0_clk -> 65MHz pixclock */
 277         reg = readl(&ccm->chsccdr);
 278         reg &= ~(MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_MASK |
 279                  MXC_CCM_CHSCCDR_IPU1_DI0_PODF_MASK |
 280                  MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_MASK);
 281         reg |= (2 << MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_OFFSET) |
 282                (6 << MXC_CCM_CHSCCDR_IPU1_DI0_PODF_OFFSET) |
 283                (0 << MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
 284         writel(reg, &ccm->chsccdr);
 285
 286         /* enable ipu1_di0_clk */
 287         setbits_le32(&ccm->CCGR3, MXC_CCM_CCGR3_LDB_DI0_MASK);
 288
 289         return 0;
 290 }
 291 #endif /* CONFIG_VIDEO_IPUV3 */
 292
 293 #ifdef CONFIG_USB_EHCI_MX6
 294 static void setup_usb(void)
 295 {
 296         SETUP_IOMUX_PADS(usb_pads);
 297 }
 298
 299 int board_ehci_hcd_init(int port)
 300 {
 301         if (port == 1)
 302                 gpio_direction_output(USB_H1_VBUS, 1);
 303
 304         return 0;
 305 }
 306 #endif
 307
 308 int board_early_init_f(void)
 309 {
 310         setup_iomux_uart();
 311
 312 #ifdef CONFIG_CMD_SATA
 313         setup_sata();
 314 #endif
 315
 316 #ifdef CONFIG_USB_EHCI_MX6
 317         setup_usb();
 318 #endif
 319         return 0;
 320 }
 321
 322 int board_init(void)
 323 {
 324         int ret = 0;
 325
 326         /* address of boot parameters */
 327         gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 328
 329 #ifdef CONFIG_VIDEO_IPUV3
 330         ret = setup_display();
 331 #endif
 332
 333         return ret;
 334 }
 335
 336 static bool is_hummingboard(void)
 337 {
 338         int val1, val2;
 339
 340         SETUP_IOMUX_PADS(hb_cbi_sense);
 341
 342         gpio_direction_input(IMX_GPIO_NR(4, 9));
 343         gpio_direction_input(IMX_GPIO_NR(3, 4));
 344
 345         val1 = gpio_get_value(IMX_GPIO_NR(4, 9));
 346         val2 = gpio_get_value(IMX_GPIO_NR(3, 4));
 347
 348         /*
 349          * Machine selection -
 350          * Machine        val1, val2
 351          * -------------------------
 352          * HB2            x     x
 353          * HB rev 3.x     x     0
 354          * CBi            0     1
 355          * HB             1     1
 356          */
 357
 358         if (val2 == 0)
 359                 return true;
 360         else if (val1 == 0)
 361                 return false;
 362         else
 363                 return true;
 364 }
 365
 366 static bool is_hummingboard2(void)
 367 {
 368         int val1;
 369
 370         SETUP_IOMUX_PADS(hb_cbi_sense);
 371
 372         gpio_direction_input(IMX_GPIO_NR(2, 8));
 373
 374         val1 = gpio_get_value(IMX_GPIO_NR(2, 8));
 375
 376         /*
 377          * Machine selection -
 378          * Machine        val1
 379          * -------------------
 380          * HB2            0
 381          * HB rev 3.x     x
 382          * CBi            x
 383          * HB             x
 384          */
 385
 386         if (val1 == 0)
 387                 return true;
 388         else
 389                 return false;
 390 }
 391
 392 int checkboard(void)
 393 {
 394         if (is_hummingboard2())
 395                 puts("Board: MX6 Hummingboard2\n");
 396         else if (is_hummingboard())
 397                 puts("Board: MX6 Hummingboard\n");
 398         else
 399                 puts("Board: MX6 Cubox-i\n");
 400
 401         return 0;
 402 }
 403
 404 int board_late_init(void)
 405 {
 406 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 407         if (is_hummingboard2())
 408                 env_set("board_name", "HUMMINGBOARD2");
 409         else if (is_hummingboard())
 410                 env_set("board_name", "HUMMINGBOARD");
 411         else
 412                 env_set("board_name", "CUBOXI");
 413
 414         if (is_mx6dq())
 415                 env_set("board_rev", "MX6Q");
 416         else
 417                 env_set("board_rev", "MX6DL");
 418 #endif
 419
 420         return 0;
 421 }
 422
 423 #ifdef CONFIG_SPL_BUILD
 424 #include <asm/arch/mx6-ddr.h>
 425 static const struct mx6dq_iomux_ddr_regs mx6q_ddr_ioregs = {
 426         .dram_sdclk_0 =  0x00020030,
 427         .dram_sdclk_1 =  0x00020030,
 428         .dram_cas =  0x00020030,
 429         .dram_ras =  0x00020030,
 430         .dram_reset =  0x000c0030,
 431         .dram_sdcke0 =  0x00003000,
 432         .dram_sdcke1 =  0x00003000,
 433         .dram_sdba2 =  0x00000000,
 434         .dram_sdodt0 =  0x00003030,
 435         .dram_sdodt1 =  0x00003030,
 436         .dram_sdqs0 =  0x00000030,
 437         .dram_sdqs1 =  0x00000030,
 438         .dram_sdqs2 =  0x00000030,
 439         .dram_sdqs3 =  0x00000030,
 440         .dram_sdqs4 =  0x00000030,
 441         .dram_sdqs5 =  0x00000030,
 442         .dram_sdqs6 =  0x00000030,
 443         .dram_sdqs7 =  0x00000030,
 444         .dram_dqm0 =  0x00020030,
 445         .dram_dqm1 =  0x00020030,
 446         .dram_dqm2 =  0x00020030,
 447         .dram_dqm3 =  0x00020030,
 448         .dram_dqm4 =  0x00020030,
 449         .dram_dqm5 =  0x00020030,
 450         .dram_dqm6 =  0x00020030,
 451         .dram_dqm7 =  0x00020030,
 452 };
 453
 454 static const struct mx6sdl_iomux_ddr_regs mx6dl_ddr_ioregs = {
 455         .dram_sdclk_0 = 0x00000028,
 456         .dram_sdclk_1 = 0x00000028,
 457         .dram_cas =     0x00000028,
 458         .dram_ras =     0x00000028,
 459         .dram_reset =   0x000c0028,
 460         .dram_sdcke0 =  0x00003000,
 461         .dram_sdcke1 =  0x00003000,
 462         .dram_sdba2 =   0x00000000,
 463         .dram_sdodt0 =  0x00003030,
 464         .dram_sdodt1 =  0x00003030,
 465         .dram_sdqs0 =   0x00000028,
 466         .dram_sdqs1 =   0x00000028,
 467         .dram_sdqs2 =   0x00000028,
 468         .dram_sdqs3 =   0x00000028,
 469         .dram_sdqs4 =   0x00000028,
 470         .dram_sdqs5 =   0x00000028,
 471         .dram_sdqs6 =   0x00000028,
 472         .dram_sdqs7 =   0x00000028,
 473         .dram_dqm0 =    0x00000028,
 474         .dram_dqm1 =    0x00000028,
 475         .dram_dqm2 =    0x00000028,
 476         .dram_dqm3 =    0x00000028,
 477         .dram_dqm4 =    0x00000028,
 478         .dram_dqm5 =    0x00000028,
 479         .dram_dqm6 =    0x00000028,
 480         .dram_dqm7 =    0x00000028,
 481 };
 482
 483 static const struct mx6dq_iomux_grp_regs mx6q_grp_ioregs = {
 484         .grp_ddr_type =  0x000C0000,
 485         .grp_ddrmode_ctl =  0x00020000,
 486         .grp_ddrpke =  0x00000000,
 487         .grp_addds =  0x00000030,
 488         .grp_ctlds =  0x00000030,
 489         .grp_ddrmode =  0x00020000,
 490         .grp_b0ds =  0x00000030,
 491         .grp_b1ds =  0x00000030,
 492         .grp_b2ds =  0x00000030,
 493         .grp_b3ds =  0x00000030,
 494         .grp_b4ds =  0x00000030,
 495         .grp_b5ds =  0x00000030,
 496         .grp_b6ds =  0x00000030,
 497         .grp_b7ds =  0x00000030,
 498 };
 499
 500 static const struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = {
 501         .grp_ddr_type = 0x000c0000,
 502         .grp_ddrmode_ctl = 0x00020000,
 503         .grp_ddrpke = 0x00000000,
 504         .grp_addds = 0x00000028,
 505         .grp_ctlds = 0x00000028,
 506         .grp_ddrmode = 0x00020000,
 507         .grp_b0ds = 0x00000028,
 508         .grp_b1ds = 0x00000028,
 509         .grp_b2ds = 0x00000028,
 510         .grp_b3ds = 0x00000028,
 511         .grp_b4ds = 0x00000028,
 512         .grp_b5ds = 0x00000028,
 513         .grp_b6ds = 0x00000028,
 514         .grp_b7ds = 0x00000028,
 515 };
 516
 517 /* microSOM with Dual processor and 1GB memory */
 518 static const struct mx6_mmdc_calibration mx6q_1g_mmcd_calib = {
 519         .p0_mpwldectrl0 =  0x00000000,
 520         .p0_mpwldectrl1 =  0x00000000,
 521         .p1_mpwldectrl0 =  0x00000000,
 522         .p1_mpwldectrl1 =  0x00000000,
 523         .p0_mpdgctrl0 =    0x0314031c,
 524         .p0_mpdgctrl1 =    0x023e0304,
 525         .p1_mpdgctrl0 =    0x03240330,
 526         .p1_mpdgctrl1 =    0x03180260,
 527         .p0_mprddlctl =    0x3630323c,
 528         .p1_mprddlctl =    0x3436283a,
 529         .p0_mpwrdlctl =    0x36344038,
 530         .p1_mpwrdlctl =    0x422a423c,
 531 };
 532
 533 /* microSOM with Quad processor and 2GB memory */
 534 static const struct mx6_mmdc_calibration mx6q_2g_mmcd_calib = {
 535         .p0_mpwldectrl0 =  0x00000000,
 536         .p0_mpwldectrl1 =  0x00000000,
 537         .p1_mpwldectrl0 =  0x00000000,
 538         .p1_mpwldectrl1 =  0x00000000,
 539         .p0_mpdgctrl0 =    0x0314031c,
 540         .p0_mpdgctrl1 =    0x023e0304,
 541         .p1_mpdgctrl0 =    0x03240330,
 542         .p1_mpdgctrl1 =    0x03180260,
 543         .p0_mprddlctl =    0x3630323c,
 544         .p1_mprddlctl =    0x3436283a,
 545         .p0_mpwrdlctl =    0x36344038,
 546         .p1_mpwrdlctl =    0x422a423c,
 547 };
 548
 549 /* microSOM with Solo processor and 512MB memory */
 550 static const struct mx6_mmdc_calibration mx6dl_512m_mmcd_calib = {
 551         .p0_mpwldectrl0 = 0x0045004D,
 552         .p0_mpwldectrl1 = 0x003A0047,
 553         .p0_mpdgctrl0 =   0x023C0224,
 554         .p0_mpdgctrl1 =   0x02000220,
 555         .p0_mprddlctl =   0x44444846,
 556         .p0_mpwrdlctl =   0x32343032,
 557 };
 558
 559 /* microSOM with Dual lite processor and 1GB memory */
 560 static const struct mx6_mmdc_calibration mx6dl_1g_mmcd_calib = {
 561         .p0_mpwldectrl0 =  0x0045004D,
 562         .p0_mpwldectrl1 =  0x003A0047,
 563         .p1_mpwldectrl0 =  0x001F001F,
 564         .p1_mpwldectrl1 =  0x00210035,
 565         .p0_mpdgctrl0 =    0x023C0224,
 566         .p0_mpdgctrl1 =    0x02000220,
 567         .p1_mpdgctrl0 =    0x02200220,
 568         .p1_mpdgctrl1 =    0x02040208,
 569         .p0_mprddlctl =    0x44444846,
 570         .p1_mprddlctl =    0x4042463C,
 571         .p0_mpwrdlctl =    0x32343032,
 572         .p1_mpwrdlctl =    0x36363430,
 573 };
 574
 575 static struct mx6_ddr3_cfg mem_ddr_2g = {
 576         .mem_speed = 1600,
 577         .density   = 2,
 578         .width     = 16,
 579         .banks     = 8,
 580         .rowaddr   = 14,
 581         .coladdr   = 10,
 582         .pagesz    = 2,
 583         .trcd      = 1375,
 584         .trcmin    = 4875,
 585         .trasmin   = 3500,
 586 };
 587
 588 static struct mx6_ddr3_cfg mem_ddr_4g = {
 589         .mem_speed = 1600,
 590         .density = 4,
 591         .width = 16,
 592         .banks = 8,
 593         .rowaddr = 15,
 594         .coladdr = 10,
 595         .pagesz = 2,
 596         .trcd = 1375,
 597         .trcmin = 4875,
 598         .trasmin = 3500,
 599 };
 600
 601 static void ccgr_init(void)
 602 {
 603         struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
 604
 605         writel(0x00C03F3F, &ccm->CCGR0);
 606         writel(0x0030FC03, &ccm->CCGR1);
 607         writel(0x0FFFC000, &ccm->CCGR2);
 608         writel(0x3FF00000, &ccm->CCGR3);
 609         writel(0x00FFF300, &ccm->CCGR4);
 610         writel(0x0F0000C3, &ccm->CCGR5);
 611         writel(0x000003FF, &ccm->CCGR6);
 612 }
 613
 614 static void spl_dram_init(int width)
 615 {
 616         struct mx6_ddr_sysinfo sysinfo = {
 617                 /* width of data bus: 0=16, 1=32, 2=64 */
 618                 .dsize = width / 32,
 619                 /* config for full 4GB range so that get_mem_size() works */
 620                 .cs_density = 32,       /* 32Gb per CS */
 621                 .ncs = 1,               /* single chip select */
 622                 .cs1_mirror = 0,
 623                 .rtt_wr = 1 /*DDR3_RTT_60_OHM*/,        /* RTT_Wr = RZQ/4 */
 624                 .rtt_nom = 1 /*DDR3_RTT_60_OHM*/,       /* RTT_Nom = RZQ/4 */
 625                 .walat = 1,     /* Write additional latency */
 626                 .ralat = 5,     /* Read additional latency */
 627                 .mif3_mode = 3, /* Command prediction working mode */
 628                 .bi_on = 1,     /* Bank interleaving enabled */
 629                 .sde_to_rst = 0x10,     /* 14 cycles, 200us (JEDEC default) */
 630                 .rst_to_cke = 0x23,     /* 33 cycles, 500us (JEDEC default) */
 631                 .ddr_type = DDR_TYPE_DDR3,
 632                 .refsel = 1,    /* Refresh cycles at 32KHz */
 633                 .refr = 7,      /* 8 refresh commands per refresh cycle */
 634         };
 635
 636         if (is_mx6dq())
 637                 mx6dq_dram_iocfg(width, &mx6q_ddr_ioregs, &mx6q_grp_ioregs);
 638         else
 639                 mx6sdl_dram_iocfg(width, &mx6dl_ddr_ioregs, &mx6sdl_grp_ioregs);
 640
 641         if (is_cpu_type(MXC_CPU_MX6D))
 642                 mx6_dram_cfg(&sysinfo, &mx6q_1g_mmcd_calib, &mem_ddr_2g);
 643         else if (is_cpu_type(MXC_CPU_MX6Q))
 644                 mx6_dram_cfg(&sysinfo, &mx6q_2g_mmcd_calib, &mem_ddr_4g);
 645         else if (is_cpu_type(MXC_CPU_MX6DL))
 646                 mx6_dram_cfg(&sysinfo, &mx6dl_1g_mmcd_calib, &mem_ddr_2g);
 647         else if (is_cpu_type(MXC_CPU_MX6SOLO))
 648                 mx6_dram_cfg(&sysinfo, &mx6dl_512m_mmcd_calib, &mem_ddr_2g);
 649 }
 650
 651 void board_init_f(ulong dummy)
 652 {
 653         /* setup AIPS and disable watchdog */
 654         arch_cpu_init();
 655
 656         ccgr_init();
 657         gpr_init();
 658
 659         /* iomux and setup of i2c */
 660         board_early_init_f();
 661
 662         /* setup GP timer */
 663         timer_init();
 664
 665         /* UART clocks enabled and gd valid - init serial console */
 666         preloader_console_init();
 667
 668         /* DDR initialization */
 669         if (is_cpu_type(MXC_CPU_MX6SOLO))
 670                 spl_dram_init(32);
 671         else
 672                 spl_dram_init(64);
 673
 674         /* Clear the BSS. */
 675         memset(__bss_start, 0, __bss_end - __bss_start);
 676
 677         /* load/boot image from boot device */
 678         board_init_r(NULL, 0);
 679 }
 680 #endif