50 lines
929 B
C
50 lines
929 B
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2016 Freescale Semiconductor, Inc.
|
|
* Copyright 2018 NXP
|
|
*
|
|
*/
|
|
#include <common.h>
|
|
#include <linux/errno.h>
|
|
#include <asm/io.h>
|
|
#include <env.h>
|
|
#include <command.h>
|
|
#include <stdbool.h>
|
|
#include <mmc.h>
|
|
|
|
static int check_mmc_autodetect(void)
|
|
{
|
|
char *autodetect_str = env_get("mmcautodetect");
|
|
|
|
if ((autodetect_str) && (strcmp(autodetect_str, "yes") == 0))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* This should be defined for each board */
|
|
__weak int mmc_map_to_kernel_blk(int dev_no)
|
|
{
|
|
return dev_no;
|
|
}
|
|
|
|
void board_late_mmc_env_init(void)
|
|
{
|
|
char cmd[32];
|
|
char mmcblk[32];
|
|
u32 dev_no = mmc_get_env_dev();
|
|
|
|
if (!check_mmc_autodetect())
|
|
return;
|
|
|
|
env_set_ulong("mmcdev", dev_no);
|
|
|
|
/* Set mmcblk env */
|
|
sprintf(mmcblk, "/dev/mmcblk%dp2 rootwait rw",
|
|
mmc_map_to_kernel_blk(dev_no));
|
|
env_set("mmcroot", mmcblk);
|
|
|
|
sprintf(cmd, "mmc dev %d", dev_no);
|
|
run_command(cmd, 0);
|
|
}
|