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/global_data.h>
  10#include <asm/io.h>
  11#include <asm/arch/sys_proto.h>
  12#include <asm/arch/mx7ulp-pins.h>
  13#include <asm/arch/iomux.h>
  14#include <asm/mach-imx/boot_mode.h>
  15
  16DECLARE_GLOBAL_DATA_PTR;
  17
  18#define UART_PAD_CTRL   (PAD_CTL_PUS_UP)
  19
  20int dram_init(void)
  21{
  22        gd->ram_size = imx_ddr_size();
  23
  24        return 0;
  25}
  26
  27static iomux_cfg_t const lpuart4_pads[] = {
  28        MX7ULP_PAD_PTC3__LPUART4_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  29        MX7ULP_PAD_PTC2__LPUART4_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  30};
  31
  32static void setup_iomux_uart(void)
  33{
  34        mx7ulp_iomux_setup_multiple_pads(lpuart4_pads,
  35                                         ARRAY_SIZE(lpuart4_pads));
  36}
  37
  38int board_early_init_f(void)
  39{
  40        setup_iomux_uart();
  41
  42        return 0;
  43}
  44
  45int board_init(void)
  46{
  47        /* address of boot parameters */
  48        gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
  49
  50        return 0;
  51}
  52
  53#if IS_ENABLED(CONFIG_OF_BOARD_SETUP)
  54int ft_board_setup(void *blob, struct bd_info *bd)
  55{
  56        const char *path;
  57        int rc, nodeoff;
  58
  59        if (get_boot_device() == USB_BOOT) {
  60                path = fdt_get_alias(blob, "mmc0");
  61                if (!path) {
  62                        puts("Not found mmc0\n");
  63                        return 0;
  64                }
  65
  66                nodeoff = fdt_path_offset(blob, path);
  67                if (nodeoff < 0)
  68                        return 0;
  69
  70                printf("Found usdhc0 node\n");
  71                if (fdt_get_property(blob, nodeoff, "vqmmc-supply",
  72                    NULL) != NULL) {
  73                        rc = fdt_delprop(blob, nodeoff, "vqmmc-supply");
  74                        if (!rc) {
  75                                puts("Removed vqmmc-supply property\n");
  76add:
  77                                rc = fdt_setprop(blob, nodeoff,
  78                                                 "no-1-8-v", NULL, 0);
  79                                if (rc == -FDT_ERR_NOSPACE) {
  80                                        rc = fdt_increase_size(blob, 32);
  81                                        if (!rc)
  82                                                goto add;
  83                                } else if (rc) {
  84                                        printf("Failed to add no-1-8-v property, %d\n", rc);
  85                                } else {
  86                                        puts("Added no-1-8-v property\n");
  87                                }
  88                        } else {
  89                                printf("Failed to remove vqmmc-supply property, %d\n", rc);
  90                        }
  91                }
  92        }
  93
  94        return 0;
  95}
  96#endif
  97