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 <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
  14DECLARE_GLOBAL_DATA_PTR;
  15
  16#define UART_PAD_CTRL   (PAD_CTL_PUS_UP)
  17
  18int dram_init(void)
  19{
  20        gd->ram_size = imx_ddr_size();
  21
  22        return 0;
  23}
  24
  25static 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
  30static void setup_iomux_uart(void)
  31{
  32        mx7ulp_iomux_setup_multiple_pads(lpuart4_pads,
  33                                         ARRAY_SIZE(lpuart4_pads));
  34}
  35
  36int board_early_init_f(void)
  37{
  38        setup_iomux_uart();
  39
  40        return 0;
  41}
  42
  43int 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)
  52int 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");
  74add:
  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
  95