LXR uboot/board/freescale/mx7ulp_evk/mx7ulp

   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
  15DECLARE_GLOBAL_DATA_PTR;
  16
  17#define UART_PAD_CTRL   (PAD_CTL_PUS_UP)
  18
  19int dram_init(void)
  20{
  21        gd->ram_size = imx_ddr_size();
  22
  23        return 0;
  24}
  25
  26static 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
  31static void setup_iomux_uart(void)
  32{
  33        mx7ulp_iomux_setup_multiple_pads(lpuart4_pads,
  34                                         ARRAY_SIZE(lpuart4_pads));
  35}
  36
  37int board_early_init_f(void)
  38{
  39        setup_iomux_uart();
  40
  41        return 0;
  42}
  43
  44int 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)
  53int ft_board_setup(void *blob, struct bd_info *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");
  75add:
  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
  96