1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2017 NXP
4  */
5 
6 #include <asm/arch/imx-regs.h>
7 #include <asm/arch/sys_proto.h>
8 #include <asm/io.h>
9 #include <asm/mach-imx/boot_mode.h>
10 
board_mmc_get_env_dev(int devno)11 __weak int board_mmc_get_env_dev(int devno)
12 {
13 	return CONFIG_ENV_MMC_DEVICE_INDEX;
14 }
15 
mmc_get_env_dev(void)16 int mmc_get_env_dev(void)
17 {
18 	struct bootrom_sw_info **p =
19 		(struct bootrom_sw_info **)(ulong)ROM_SW_INFO_ADDR;
20 	int devno = (*p)->boot_dev_instance;
21 	u8 boot_type = (*p)->boot_dev_type;
22 
23 	/* If not boot from sd/mmc, use default value */
24 	if ((boot_type != BOOT_TYPE_SD) && (boot_type != BOOT_TYPE_MMC))
25 		return CONFIG_ENV_MMC_DEVICE_INDEX;
26 
27 	return board_mmc_get_env_dev(devno);
28 }
29