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f342c9e381
Dynamic setting mmcdev and mmcroot. Then when boot linux, we can have correct "root=/dev/mmcblk[x]p2" Signed-off-by: Peng Fan <peng.fan@nxp.com>
50 lines
950 B
C
50 lines
950 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2016 Freescale Semiconductor, Inc.
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* Copyright 2018-2022 NXP
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*/
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#include <common.h>
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#include <command.h>
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#include <asm/arch/sys_proto.h>
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#include <linux/errno.h>
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#include <asm/io.h>
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#include <stdbool.h>
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#include <mmc.h>
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#include <env.h>
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static int check_mmc_autodetect(void)
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{
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char *autodetect_str = env_get("mmcautodetect");
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if (autodetect_str && !strcmp(autodetect_str, "yes"))
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return 1;
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return 0;
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}
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/* This should be defined for each board */
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__weak int mmc_map_to_kernel_blk(int dev_no)
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{
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return dev_no;
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}
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void board_late_mmc_env_init(void)
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{
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char cmd[32];
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char mmcblk[32];
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u32 dev_no = mmc_get_env_dev();
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if (!check_mmc_autodetect())
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return;
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env_set_ulong("mmcdev", dev_no);
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/* Set mmcblk env */
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sprintf(mmcblk, "/dev/mmcblk%dp2 rootwait rw", mmc_map_to_kernel_blk(dev_no));
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env_set("mmcroot", mmcblk);
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sprintf(cmd, "mmc dev %d", dev_no);
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run_command(cmd, 0);
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}
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