board/menlo/m53menlo/m53menlo.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Menlosystems M53Menlo board
   4  *
   5  * Copyright (C) 2012-2017 Marek Vasut <marex@denx.de>
   6  * Copyright (C) 2014-2017 Olaf Mandel <o.mandel@menlosystems.com>
   7  */
   8
   9 #include <common.h>
  10 #include <asm/io.h>
  11 #include <asm/arch/imx-regs.h>
  12 #include <asm/arch/sys_proto.h>
  13 #include <asm/arch/crm_regs.h>
  14 #include <asm/arch/clock.h>
  15 #include <asm/arch/iomux-mx53.h>
  16 #include <asm/mach-imx/mx5_video.h>
  17 #include <asm/mach-imx/video.h>
  18 #include <asm/gpio.h>
  19 #include <asm/spl.h>
  20 #include <fdt_support.h>
  21 #include <fsl_esdhc.h>
  22 #include <i2c.h>
  23 #include <ipu_pixfmt.h>
  24 #include <linux/errno.h>
  25 #include <linux/fb.h>
  26 #include <mmc.h>
  27 #include <netdev.h>
  28 #include <spl.h>
  29 #include <splash.h>
  30 #include <usb/ehci-ci.h>
  31
  32 DECLARE_GLOBAL_DATA_PTR;
  33
  34 static u32 mx53_dram_size[2];
  35
  36 ulong board_get_usable_ram_top(ulong total_size)
  37 {
  38         /*
  39          * WARNING: We must override get_effective_memsize() function here
  40          * to report only the size of the first DRAM bank. This is to make
  41          * U-Boot relocator place U-Boot into valid memory, that is, at the
  42          * end of the first DRAM bank. If we did not override this function
  43          * like so, U-Boot would be placed at the address of the first DRAM
  44          * bank + total DRAM size - sizeof(uboot), which in the setup where
  45          * each DRAM bank contains 512MiB of DRAM would result in placing
  46          * U-Boot into invalid memory area close to the end of the first
  47          * DRAM bank.
  48          */
  49         return PHYS_SDRAM_2 + mx53_dram_size[1];
  50 }
  51
  52 int dram_init(void)
  53 {
  54         mx53_dram_size[0] = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
  55         mx53_dram_size[1] = get_ram_size((void *)PHYS_SDRAM_2, 1 << 30);
  56
  57         gd->ram_size = mx53_dram_size[0] + mx53_dram_size[1];
  58
  59         return 0;
  60 }
  61
  62 int dram_init_banksize(void)
  63 {
  64         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
  65         gd->bd->bi_dram[0].size = mx53_dram_size[0];
  66
  67         gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
  68         gd->bd->bi_dram[1].size = mx53_dram_size[1];
  69
  70         return 0;
  71 }
  72
  73 static void setup_iomux_uart(void)
  74 {
  75         static const iomux_v3_cfg_t uart_pads[] = {
  76                 MX53_PAD_PATA_DMACK__UART1_RXD_MUX,
  77                 MX53_PAD_PATA_DIOW__UART1_TXD_MUX,
  78         };
  79
  80         imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
  81 }
  82
  83 #ifdef CONFIG_USB_EHCI_MX5
  84 int board_ehci_hcd_init(int port)
  85 {
  86         if (port == 0) {
  87                 /* USB OTG PWRON */
  88                 imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_4__GPIO1_4,
  89                                                     PAD_CTL_PKE |
  90                                                     PAD_CTL_DSE_HIGH));
  91                 gpio_direction_output(IMX_GPIO_NR(1, 4), 0);
  92
  93                 /* USB OTG Over Current */
  94                 imx_iomux_v3_setup_pad(MX53_PAD_GPIO_18__GPIO7_13);
  95         } else if (port == 1) {
  96                 /* USB Host PWRON */
  97                 imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_2__GPIO1_2,
  98                                                     PAD_CTL_PKE |
  99                                                     PAD_CTL_DSE_HIGH));
 100                 gpio_direction_output(IMX_GPIO_NR(1, 2), 0);
 101
 102                 /* USB Host Over Current */
 103                 imx_iomux_v3_setup_pad(MX53_PAD_GPIO_3__USBOH3_USBH1_OC);
 104         }
 105
 106         return 0;
 107 }
 108 #endif
 109
 110 static void setup_iomux_fec(void)
 111 {
 112         static const iomux_v3_cfg_t fec_pads[] = {
 113                 /* MDIO pads */
 114                 NEW_PAD_CTRL(MX53_PAD_FEC_MDIO__FEC_MDIO, PAD_CTL_HYS |
 115                         PAD_CTL_DSE_HIGH | PAD_CTL_PUS_22K_UP | PAD_CTL_ODE),
 116                 NEW_PAD_CTRL(MX53_PAD_FEC_MDC__FEC_MDC, PAD_CTL_DSE_HIGH),
 117
 118                 /* FEC 0 pads */
 119                 NEW_PAD_CTRL(MX53_PAD_FEC_CRS_DV__FEC_RX_DV,
 120                              PAD_CTL_HYS | PAD_CTL_PKE),
 121                 NEW_PAD_CTRL(MX53_PAD_FEC_REF_CLK__FEC_TX_CLK,
 122                              PAD_CTL_HYS | PAD_CTL_PKE),
 123                 NEW_PAD_CTRL(MX53_PAD_FEC_RX_ER__FEC_RX_ER,
 124                              PAD_CTL_HYS | PAD_CTL_PKE),
 125                 NEW_PAD_CTRL(MX53_PAD_FEC_TX_EN__FEC_TX_EN, PAD_CTL_DSE_HIGH),
 126                 NEW_PAD_CTRL(MX53_PAD_FEC_RXD0__FEC_RDATA_0,
 127                              PAD_CTL_HYS | PAD_CTL_PKE),
 128                 NEW_PAD_CTRL(MX53_PAD_FEC_RXD1__FEC_RDATA_1,
 129                              PAD_CTL_HYS | PAD_CTL_PKE),
 130                 NEW_PAD_CTRL(MX53_PAD_FEC_TXD0__FEC_TDATA_0, PAD_CTL_DSE_HIGH),
 131                 NEW_PAD_CTRL(MX53_PAD_FEC_TXD1__FEC_TDATA_1, PAD_CTL_DSE_HIGH),
 132
 133                 /* FEC 1 pads */
 134                 NEW_PAD_CTRL(MX53_PAD_KEY_COL0__FEC_RDATA_3,
 135                              PAD_CTL_HYS | PAD_CTL_PKE),
 136                 NEW_PAD_CTRL(MX53_PAD_KEY_ROW0__FEC_TX_ER,
 137                              PAD_CTL_HYS | PAD_CTL_PKE),
 138                 NEW_PAD_CTRL(MX53_PAD_KEY_COL1__FEC_RX_CLK,
 139                              PAD_CTL_HYS | PAD_CTL_PKE),
 140                 NEW_PAD_CTRL(MX53_PAD_KEY_ROW1__FEC_COL,
 141                              PAD_CTL_HYS | PAD_CTL_PKE),
 142                 NEW_PAD_CTRL(MX53_PAD_KEY_COL2__FEC_RDATA_2,
 143                              PAD_CTL_HYS | PAD_CTL_PKE),
 144                 NEW_PAD_CTRL(MX53_PAD_KEY_ROW2__FEC_TDATA_2, PAD_CTL_DSE_HIGH),
 145                 NEW_PAD_CTRL(MX53_PAD_KEY_COL3__FEC_CRS,
 146                              PAD_CTL_HYS | PAD_CTL_PKE),
 147                 NEW_PAD_CTRL(MX53_PAD_GPIO_19__FEC_TDATA_3, PAD_CTL_DSE_HIGH),
 148         };
 149
 150         imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
 151 }
 152
 153 #ifdef CONFIG_FSL_ESDHC
 154 struct fsl_esdhc_cfg esdhc_cfg = {
 155         MMC_SDHC1_BASE_ADDR,
 156 };
 157
 158 int board_mmc_getcd(struct mmc *mmc)
 159 {
 160         imx_iomux_v3_setup_pad(MX53_PAD_GPIO_1__GPIO1_1);
 161         gpio_direction_input(IMX_GPIO_NR(1, 1));
 162
 163         return !gpio_get_value(IMX_GPIO_NR(1, 1));
 164 }
 165
 166 #define SD_CMD_PAD_CTRL         (PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
 167                                  PAD_CTL_PUS_100K_UP)
 168 #define SD_PAD_CTRL             (PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | \
 169                                  PAD_CTL_DSE_HIGH)
 170
 171 int board_mmc_init(bd_t *bis)
 172 {
 173         static const iomux_v3_cfg_t sd1_pads[] = {
 174                 NEW_PAD_CTRL(MX53_PAD_SD1_CMD__ESDHC1_CMD, SD_CMD_PAD_CTRL),
 175                 NEW_PAD_CTRL(MX53_PAD_SD1_CLK__ESDHC1_CLK, SD_PAD_CTRL),
 176                 NEW_PAD_CTRL(MX53_PAD_SD1_DATA0__ESDHC1_DAT0, SD_PAD_CTRL),
 177                 NEW_PAD_CTRL(MX53_PAD_SD1_DATA1__ESDHC1_DAT1, SD_PAD_CTRL),
 178                 NEW_PAD_CTRL(MX53_PAD_SD1_DATA2__ESDHC1_DAT2, SD_PAD_CTRL),
 179                 NEW_PAD_CTRL(MX53_PAD_SD1_DATA3__ESDHC1_DAT3, SD_PAD_CTRL),
 180         };
 181
 182         esdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
 183
 184         imx_iomux_v3_setup_multiple_pads(sd1_pads, ARRAY_SIZE(sd1_pads));
 185
 186         return fsl_esdhc_initialize(bis, &esdhc_cfg);
 187 }
 188 #endif
 189
 190 #ifdef CONFIG_VIDEO
 191 static void enable_lvds_clock(struct display_info_t const *dev, const u8 hclk)
 192 {
 193         static struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)MXC_CCM_BASE;
 194         int ret;
 195
 196         /* For ETM0430G0DH6 model, this must be enabled before the clock. */
 197         gpio_direction_output(IMX_GPIO_NR(6, 0), 1);
 198
 199         /*
 200          * Set LVDS clock to 33.28 MHz for the display. The PLL4 is set to
 201          * 233 MHz, divided by 7 by setting CCM_CSCMR2 LDB_DI0_IPU_DIV=1 .
 202          */
 203         ret = mxc_set_clock(MXC_HCLK, hclk, MXC_LDB_CLK);
 204         if (ret)
 205                 puts("IPU:   Failed to configure LDB clock\n");
 206
 207         /* Configure CCM_CSCMR2 */
 208         clrsetbits_le32(&mxc_ccm->cscmr2,
 209                         (0x7 << 26) | BIT(10) | BIT(8),
 210                         (0x5 << 26) | BIT(10) | BIT(8));
 211
 212         /* Configure LDB_CTRL */
 213         writel(0x201, 0x53fa8008);
 214 }
 215
 216 static void enable_lvds_etm0430g0dh6(struct display_info_t const *dev)
 217 {
 218         /* For ETM0430G0DH6 model, this must be enabled before the clock. */
 219         gpio_direction_output(IMX_GPIO_NR(6, 0), 1);
 220
 221         /*
 222          * Set LVDS clock to 9 MHz for the display. The PLL4 is set to
 223          * 63 MHz, divided by 7 by setting CCM_CSCMR2 LDB_DI0_IPU_DIV=1 .
 224          */
 225         enable_lvds_clock(dev, 63);
 226 }
 227
 228 static void enable_lvds_etm0700g0dh6(struct display_info_t const *dev)
 229 {
 230         /*
 231          * Set LVDS clock to 33.28 MHz for the display. The PLL4 is set to
 232          * 233 MHz, divided by 7 by setting CCM_CSCMR2 LDB_DI0_IPU_DIV=1 .
 233          */
 234         enable_lvds_clock(dev, 233);
 235
 236         /* For ETM0700G0DH6 model, this may be enabled after the clock. */
 237         gpio_direction_output(IMX_GPIO_NR(6, 0), 1);
 238 }
 239
 240 static const char *lvds_compat_string;
 241
 242 static int detect_lvds(struct display_info_t const *dev)
 243 {
 244         u8 touchid[23];
 245         u8 *touchptr = &touchid[0];
 246         int ret;
 247
 248         ret = i2c_set_bus_num(0);
 249         if (ret)
 250                 return 0;
 251
 252         /* Touchscreen is at address 0x38, ID register is 0xbb. */
 253         ret = i2c_read(0x38, 0xbb, 1, touchid, sizeof(touchid));
 254         if (ret)
 255                 return 0;
 256
 257         /* EP0430 prefixes the response with 0xbb, skip it. */
 258         if (*touchptr == 0xbb)
 259                 touchptr++;
 260
 261         /* Skip the 'EP' prefix. */
 262         touchptr += 2;
 263
 264         ret = !memcmp(touchptr, &dev->mode.name[7], 4);
 265         if (ret)
 266                 lvds_compat_string = dev->mode.name;
 267
 268         return ret;
 269 }
 270
 271 void board_preboot_os(void)
 272 {
 273         /* Power off the LCD to prevent awful color flicker */
 274         gpio_direction_output(IMX_GPIO_NR(6, 0), 0);
 275 }
 276
 277 int ft_board_setup(void *blob, bd_t *bd)
 278 {
 279         if (lvds_compat_string)
 280                 do_fixup_by_path_string(blob, "/panel", "compatible",
 281                                         lvds_compat_string);
 282
 283         return 0;
 284 }
 285
 286 struct display_info_t const displays[] = {
 287         {
 288                 .bus    = 0,
 289                 .addr   = 0,
 290                 .detect = detect_lvds,
 291                 .enable = enable_lvds_etm0430g0dh6,
 292                 .pixfmt = IPU_PIX_FMT_RGB666,
 293                 .mode   = {
 294                         .name           = "edt,etm0430g0dh6",
 295                         .refresh        = 60,
 296                         .xres           = 480,
 297                         .yres           = 272,
 298                         .pixclock       = 111111, /* picosecond (9 MHz) */
 299                         .left_margin    = 2,
 300                         .right_margin   = 2,
 301                         .upper_margin   = 2,
 302                         .lower_margin   = 2,
 303                         .hsync_len      = 41,
 304                         .vsync_len      = 10,
 305                         .sync           = 0x40000000,
 306                         .vmode          = FB_VMODE_NONINTERLACED
 307                 }
 308         }, {
 309                 .bus    = 0,
 310                 .addr   = 0,
 311                 .detect = detect_lvds,
 312                 .enable = enable_lvds_etm0700g0dh6,
 313                 .pixfmt = IPU_PIX_FMT_RGB666,
 314                 .mode   = {
 315                         .name           = "edt,etm0700g0dh6",
 316                         .refresh        = 60,
 317                         .xres           = 800,
 318                         .yres           = 480,
 319                         .pixclock       = 30048, /* picosecond (33.28 MHz) */
 320                         .left_margin    = 40,
 321                         .right_margin   = 88,
 322                         .upper_margin   = 10,
 323                         .lower_margin   = 33,
 324                         .hsync_len      = 128,
 325                         .vsync_len      = 2,
 326                         .sync           = FB_SYNC_EXT,
 327                         .vmode          = FB_VMODE_NONINTERLACED
 328                 }
 329         }
 330 };
 331
 332 size_t display_count = ARRAY_SIZE(displays);
 333 #endif
 334
 335 #ifdef CONFIG_SPLASH_SCREEN
 336 static struct splash_location default_splash_locations[] = {
 337         {
 338                 .name           = "mmc_fs",
 339                 .storage        = SPLASH_STORAGE_MMC,
 340                 .flags          = SPLASH_STORAGE_FS,
 341                 .devpart        = "0:1",
 342         },
 343 };
 344
 345 int splash_screen_prepare(void)
 346 {
 347         return splash_source_load(default_splash_locations,
 348                                   ARRAY_SIZE(default_splash_locations));
 349 }
 350 #endif
 351
 352 #define I2C_PAD_CTRL    (PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH | \
 353                          PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
 354
 355 static void setup_iomux_i2c(void)
 356 {
 357         static const iomux_v3_cfg_t i2c_pads[] = {
 358                 /* I2C1 */
 359                 NEW_PAD_CTRL(MX53_PAD_EIM_D28__I2C1_SDA, I2C_PAD_CTRL),
 360                 NEW_PAD_CTRL(MX53_PAD_EIM_D21__I2C1_SCL, I2C_PAD_CTRL),
 361                 /* I2C2 */
 362                 NEW_PAD_CTRL(MX53_PAD_EIM_D16__I2C2_SDA, I2C_PAD_CTRL),
 363                 NEW_PAD_CTRL(MX53_PAD_EIM_EB2__I2C2_SCL, I2C_PAD_CTRL),
 364         };
 365
 366         imx_iomux_v3_setup_multiple_pads(i2c_pads, ARRAY_SIZE(i2c_pads));
 367 }
 368
 369 static void setup_iomux_video(void)
 370 {
 371         static const iomux_v3_cfg_t lcd_pads[] = {
 372                 MX53_PAD_LVDS0_TX3_P__LDB_LVDS0_TX3,
 373                 MX53_PAD_LVDS0_CLK_P__LDB_LVDS0_CLK,
 374                 MX53_PAD_LVDS0_TX2_P__LDB_LVDS0_TX2,
 375                 MX53_PAD_LVDS0_TX1_P__LDB_LVDS0_TX1,
 376                 MX53_PAD_LVDS0_TX0_P__LDB_LVDS0_TX0,
 377         };
 378
 379         imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
 380 }
 381
 382 static void setup_iomux_nand(void)
 383 {
 384         static const iomux_v3_cfg_t nand_pads[] = {
 385                 NEW_PAD_CTRL(MX53_PAD_NANDF_WE_B__EMI_NANDF_WE_B,
 386                              PAD_CTL_DSE_HIGH),
 387                 NEW_PAD_CTRL(MX53_PAD_NANDF_RE_B__EMI_NANDF_RE_B,
 388                              PAD_CTL_DSE_HIGH),
 389                 NEW_PAD_CTRL(MX53_PAD_NANDF_CLE__EMI_NANDF_CLE,
 390                              PAD_CTL_DSE_HIGH),
 391                 NEW_PAD_CTRL(MX53_PAD_NANDF_ALE__EMI_NANDF_ALE,
 392                              PAD_CTL_DSE_HIGH),
 393                 NEW_PAD_CTRL(MX53_PAD_NANDF_WP_B__EMI_NANDF_WP_B,
 394                              PAD_CTL_PUS_100K_UP),
 395                 NEW_PAD_CTRL(MX53_PAD_NANDF_RB0__EMI_NANDF_RB_0,
 396                              PAD_CTL_PUS_100K_UP),
 397                 NEW_PAD_CTRL(MX53_PAD_NANDF_CS0__EMI_NANDF_CS_0,
 398                              PAD_CTL_DSE_HIGH),
 399                 NEW_PAD_CTRL(MX53_PAD_PATA_DATA0__EMI_NANDF_D_0,
 400                              PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 401                 NEW_PAD_CTRL(MX53_PAD_PATA_DATA1__EMI_NANDF_D_1,
 402                              PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 403                 NEW_PAD_CTRL(MX53_PAD_PATA_DATA2__EMI_NANDF_D_2,
 404                              PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 405                 NEW_PAD_CTRL(MX53_PAD_PATA_DATA3__EMI_NANDF_D_3,
 406                              PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 407                 NEW_PAD_CTRL(MX53_PAD_PATA_DATA4__EMI_NANDF_D_4,
 408                              PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 409                 NEW_PAD_CTRL(MX53_PAD_PATA_DATA5__EMI_NANDF_D_5,
 410                              PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 411                 NEW_PAD_CTRL(MX53_PAD_PATA_DATA6__EMI_NANDF_D_6,
 412                              PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 413                 NEW_PAD_CTRL(MX53_PAD_PATA_DATA7__EMI_NANDF_D_7,
 414                              PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 415         };
 416
 417         imx_iomux_v3_setup_multiple_pads(nand_pads, ARRAY_SIZE(nand_pads));
 418 }
 419
 420 static void m53_set_clock(void)
 421 {
 422         int ret;
 423         const u32 ref_clk = MXC_HCLK;
 424         const u32 dramclk = 400;
 425         u32 cpuclk;
 426
 427         imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_10__GPIO4_0,
 428                                             PAD_CTL_DSE_HIGH | PAD_CTL_PKE));
 429         gpio_direction_input(IMX_GPIO_NR(4, 0));
 430
 431         /* GPIO10 selects modules' CPU speed, 1 = 1200MHz ; 0 = 800MHz */
 432         cpuclk = gpio_get_value(IMX_GPIO_NR(4, 0)) ? 1200 : 800;
 433
 434         ret = mxc_set_clock(ref_clk, cpuclk, MXC_ARM_CLK);
 435         if (ret)
 436                 printf("CPU:   Switch CPU clock to %dMHz failed\n", cpuclk);
 437
 438         ret = mxc_set_clock(ref_clk, dramclk, MXC_PERIPH_CLK);
 439         if (ret) {
 440                 printf("CPU:   Switch peripheral clock to %dMHz failed\n",
 441                        dramclk);
 442         }
 443
 444         ret = mxc_set_clock(ref_clk, dramclk, MXC_DDR_CLK);
 445         if (ret)
 446                 printf("CPU:   Switch DDR clock to %dMHz failed\n", dramclk);
 447 }
 448
 449 static void m53_set_nand(void)
 450 {
 451         u32 i;
 452
 453         /* NAND flash is muxed on ATA pins */
 454         setbits_le32(M4IF_BASE_ADDR + 0xc, M4IF_GENP_WEIM_MM_MASK);
 455
 456         /* Wait for Grant/Ack sequence (see EIM_CSnGCR2:MUX16_BYP_GRANT) */
 457         for (i = 0x4; i < 0x94; i += 0x18) {
 458                 clrbits_le32(WEIM_BASE_ADDR + i,
 459                              WEIM_GCR2_MUX16_BYP_GRANT_MASK);
 460         }
 461
 462         mxc_set_clock(0, 33, MXC_NFC_CLK);
 463         enable_nfc_clk(1);
 464 }
 465
 466 int board_early_init_f(void)
 467 {
 468         setup_iomux_uart();
 469         setup_iomux_fec();
 470         setup_iomux_i2c();
 471         setup_iomux_nand();
 472         setup_iomux_video();
 473
 474         m53_set_clock();
 475
 476         mxc_set_sata_internal_clock();
 477
 478         /* NAND clock @ 33MHz */
 479         m53_set_nand();
 480
 481         return 0;
 482 }
 483
 484 int board_init(void)
 485 {
 486         gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
 487
 488         return 0;
 489 }
 490
 491 int checkboard(void)
 492 {
 493         puts("Board: Menlosystems M53Menlo\n");
 494
 495         return 0;
 496 }
 497
 498 /*
 499  * NAND SPL
 500  */
 501 #ifdef CONFIG_SPL_BUILD
 502 void spl_board_init(void)
 503 {
 504         setup_iomux_nand();
 505         m53_set_clock();
 506         m53_set_nand();
 507 }
 508
 509 u32 spl_boot_device(void)
 510 {
 511         return BOOT_DEVICE_NAND;
 512 }
 513 #endif