diff options
author | Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi> | 2018-10-15 02:21:12 -0700 |
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committer | Simon Glass <sjg@chromium.org> | 2018-11-14 09:16:27 -0800 |
commit | 78e12901f3fc8d228bd050f35594e1994f6a7d35 (patch) | |
tree | c2640b7f9fe4ca591608c06552c0489666377e45 /cmd/virtio.c | |
parent | f4802209e59da759b2d1bfcf136d6855984a5d05 (diff) |
virtio: cmd: Add virtio command for virtio devices
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>
Diffstat (limited to 'cmd/virtio.c')
-rw-r--r-- | cmd/virtio.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/cmd/virtio.c b/cmd/virtio.c new file mode 100644 index 0000000000..b7082bc63a --- /dev/null +++ b/cmd/virtio.c @@ -0,0 +1,38 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2018, Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi> + * Copyright (C) 2018, Bin Meng <bmeng.cn@gmail.com> + */ + +#include <common.h> +#include <command.h> +#include <dm.h> +#include <virtio_types.h> +#include <virtio.h> + +static int virtio_curr_dev; + +static int do_virtio(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + if (argc == 2 && !strcmp(argv[1], "scan")) { + /* make sure all virtio devices are enumerated */ + virtio_init(); + + return CMD_RET_SUCCESS; + } + + return blk_common_cmd(argc, argv, IF_TYPE_VIRTIO, &virtio_curr_dev); +} + +U_BOOT_CMD( + virtio, 8, 1, do_virtio, + "virtio block devices sub-system", + "scan - initialize virtio bus\n" + "virtio info - show all available virtio block devices\n" + "virtio device [dev] - show or set current virtio block device\n" + "virtio part [dev] - print partition table of one or all virtio block devices\n" + "virtio read addr blk# cnt - read `cnt' blocks starting at block\n" + " `blk#' to memory address `addr'\n" + "virtio write addr blk# cnt - write `cnt' blocks starting at block\n" + " `blk#' from memory address `addr'" +); |