mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-11 13:56:30 +00:00
ef5c7d6d5c
Add handy macros:
- sdscript: source boot.scr in the file system of the SD media
- sdboot : boot the kernel using the images in the file system
of the SD media
- sdscript: update the boot firmware in the SD media
(in raw block sectors)
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
65 lines
1.2 KiB
C
65 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2016 Socionext Inc.
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* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
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*/
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#include <common.h>
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#include <env.h>
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#include <mmc.h>
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#include <linux/errno.h>
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static int find_first_mmc_device(bool is_sd)
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{
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struct mmc *mmc;
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int i;
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for (i = 0; (mmc = find_mmc_device(i)); i++) {
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if (!mmc_init(mmc) &&
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((is_sd && IS_SD(mmc)) || (!is_sd && IS_MMC(mmc))))
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return i;
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}
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return -ENODEV;
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}
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int mmc_get_env_dev(void)
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{
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return find_first_mmc_device(false);
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}
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static int do_mmcsetn(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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int dev;
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dev = find_first_mmc_device(false);
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if (dev < 0)
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return CMD_RET_FAILURE;
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env_set_ulong("mmc_first_dev", dev);
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return CMD_RET_SUCCESS;
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}
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U_BOOT_CMD(
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mmcsetn, 1, 1, do_mmcsetn,
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"Set the first MMC (not SD) dev number to \"mmc_first_dev\" environment",
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""
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);
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static int do_sdsetn(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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int dev;
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dev = find_first_mmc_device(true);
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if (dev < 0)
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return CMD_RET_FAILURE;
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env_set_ulong("sd_first_dev", dev);
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return CMD_RET_SUCCESS;
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}
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U_BOOT_CMD(
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sdsetn, 1, 1, do_sdsetn,
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"Set the first SD dev number to \"sd_first_dev\" environment",
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""
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);
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