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