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