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https://github.com/smaeul/u-boot.git
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78e12901f3
Add 'virtio' command in U-Boot command line. Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi> Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2018, Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
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* Copyright (C) 2018, Bin Meng <bmeng.cn@gmail.com>
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*/
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#include <common.h>
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#include <command.h>
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#include <dm.h>
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#include <virtio_types.h>
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#include <virtio.h>
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static int virtio_curr_dev;
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static int do_virtio(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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if (argc == 2 && !strcmp(argv[1], "scan")) {
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/* make sure all virtio devices are enumerated */
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virtio_init();
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return CMD_RET_SUCCESS;
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}
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return blk_common_cmd(argc, argv, IF_TYPE_VIRTIO, &virtio_curr_dev);
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}
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U_BOOT_CMD(
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virtio, 8, 1, do_virtio,
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"virtio block devices sub-system",
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"scan - initialize virtio bus\n"
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"virtio info - show all available virtio block devices\n"
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"virtio device [dev] - show or set current virtio block device\n"
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"virtio part [dev] - print partition table of one or all virtio block devices\n"
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"virtio read addr blk# cnt - read `cnt' blocks starting at block\n"
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" `blk#' to memory address `addr'\n"
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"virtio write addr blk# cnt - write `cnt' blocks starting at block\n"
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" `blk#' from memory address `addr'"
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);
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