board/freescale/mx7ulp_evk/mx7ulp_evk.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2016 Freescale Semiconductor, Inc.
   4  */
   5
   6 #include <common.h>
   7 #include <fdt_support.h>
   8 #include <asm/io.h>
   9 #include <asm/arch/sys_proto.h>
  10 #include <asm/arch/mx7ulp-pins.h>
  11 #include <asm/arch/iomux.h>
  12 #include <asm/mach-imx/boot_mode.h>
  13
  14 DECLARE_GLOBAL_DATA_PTR;
  15
  16 #define UART_PAD_CTRL   (PAD_CTL_PUS_UP)
  17
  18 int dram_init(void)
  19 {
  20         gd->ram_size = imx_ddr_size();
  21
  22         return 0;
  23 }
  24
  25 static iomux_cfg_t const lpuart4_pads[] = {
  26         MX7ULP_PAD_PTC3__LPUART4_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  27         MX7ULP_PAD_PTC2__LPUART4_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  28 };
  29
  30 static void setup_iomux_uart(void)
  31 {
  32         mx7ulp_iomux_setup_multiple_pads(lpuart4_pads,
  33                                          ARRAY_SIZE(lpuart4_pads));
  34 }
  35
  36 int board_early_init_f(void)
  37 {
  38         setup_iomux_uart();
  39
  40         return 0;
  41 }
  42
  43 int board_init(void)
  44 {
  45         /* address of boot parameters */
  46         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
  47
  48         return 0;
  49 }
  50
  51 #if IS_ENABLED(CONFIG_OF_BOARD_SETUP)
  52 int ft_board_setup(void *blob, bd_t *bd)
  53 {
  54         const char *path;
  55         int rc, nodeoff;
  56
  57         if (get_boot_device() == USB_BOOT) {
  58                 path = fdt_get_alias(blob, "mmc0");
  59                 if (!path) {
  60                         puts("Not found mmc0\n");
  61                         return 0;
  62                 }
  63
  64                 nodeoff = fdt_path_offset(blob, path);
  65                 if (nodeoff < 0)
  66                         return 0;
  67
  68                 printf("Found usdhc0 node\n");
  69                 if (fdt_get_property(blob, nodeoff, "vqmmc-supply",
  70                     NULL) != NULL) {
  71                         rc = fdt_delprop(blob, nodeoff, "vqmmc-supply");
  72                         if (!rc) {
  73                                 puts("Removed vqmmc-supply property\n");
  74 add:
  75                                 rc = fdt_setprop(blob, nodeoff,
  76                                                  "no-1-8-v", NULL, 0);
  77                                 if (rc == -FDT_ERR_NOSPACE) {
  78                                         rc = fdt_increase_size(blob, 32);
  79                                         if (!rc)
  80                                                 goto add;
  81                                 } else if (rc) {
  82                                         printf("Failed to add no-1-8-v property, %d\n", rc);
  83                                 } else {
  84                                         puts("Added no-1-8-v property\n");
  85                                 }
  86                         } else {
  87                                 printf("Failed to remove vqmmc-supply property, %d\n", rc);
  88                         }
  89                 }
  90         }
  91
  92         return 0;
  93 }
  94 #endif