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| author | Petr Kulhavy <brain@jikos.cz> | 2016-09-09 10:27:16 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-10-01 20:04:51 -0400 |
| commit | b6dd69a4d6b20862a2075f402f9edfb0de6d14ed (patch) | |
| tree | cde16c70cc63077087cdfb209d812a1d7a5980b8 /disk | |
| parent | 87b8530fe24408b0ef41c9b80f38c395ccafad2c (diff) | |
| download | u-boot-b6dd69a4d6b20862a2075f402f9edfb0de6d14ed.tar.gz | |
fastboot: add support for writing MBR
Add special target "mbr" (otherwise configurable via CONFIG_FASTBOOT_MBR_NAME)
to write MBR partition table.
Partitions are now searched using the generic function which finds any
partiiton by name. For MBR the partition names hda1, sda1, etc. are used.
Signed-off-by: Petr Kulhavy <brain@jikos.cz>
Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Steve Rae <steve.rae@raedomain.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'disk')
| -rw-r--r-- | disk/part_dos.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/disk/part_dos.c b/disk/part_dos.c index 82266012ef..8e6aae5736 100644 --- a/disk/part_dos.c +++ b/disk/part_dos.c @@ -297,6 +297,26 @@ int part_get_info_dos(struct blk_desc *dev_desc, int part, return part_get_info_extended(dev_desc, 0, 0, 1, part, info, 0); } +int is_valid_dos_buf(void *buf) +{ + return test_block_type(buf) == DOS_MBR ? 0 : -1; +} + +int write_mbr_partition(struct blk_desc *dev_desc, void *buf) +{ + if (is_valid_dos_buf(buf)) + return -1; + + /* write MBR */ + if (blk_dwrite(dev_desc, 0, 1, buf) != 1) { + printf("%s: failed writing '%s' (1 blks at 0x0)\n", + __func__, "MBR"); + return 1; + } + + return 0; +} + U_BOOT_PART_TYPE(dos) = { .name = "DOS", .part_type = PART_TYPE_DOS, |