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authorCai Zhiyong <caizhiyong@huawei.com>2013-09-11 14:20:09 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-11 15:56:57 -0700
commitbab55417b10c95e6bff8cea315c315adfa009487 (patch)
tree56bfc578d47c7ea786bf6a35bf946f37e9b458b1 /block/partitions/Kconfig
parented751e683c563be64322b9bfa0f0f7e5da9bd37c (diff)
downloadlinux-linaro-stable-bab55417b10c95e6bff8cea315c315adfa009487.tar.gz
block: support embedded device command line partition
Read block device partition table from command line. The partition used for fixed block device (eMMC) embedded device. It is no MBR, save storage space. Bootloader can be easily accessed by absolute address of data on the block device. Users can easily change the partition. This code reference MTD partition, source "drivers/mtd/cmdlinepart.c" About the partition verbose reference "Documentation/block/cmdline-partition.txt" [akpm@linux-foundation.org: fix printk text] [yongjun_wei@trendmicro.com.cn: fix error return code in parse_parts()] Signed-off-by: Cai Zhiyong <caizhiyong@huawei.com> Cc: Karel Zak <kzak@redhat.com> Cc: "Wanglin (Albert)" <albert.wanglin@huawei.com> Cc: Marius Groeger <mag@sysgo.de> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Brian Norris <computersforpeace@gmail.com> Cc: Artem Bityutskiy <dedekind@infradead.org> Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'block/partitions/Kconfig')
-rw-r--r--block/partitions/Kconfig7
1 files changed, 7 insertions, 0 deletions
diff --git a/block/partitions/Kconfig b/block/partitions/Kconfig
index 4cebb2f0d2f4..87a32086535d 100644
--- a/block/partitions/Kconfig
+++ b/block/partitions/Kconfig
@@ -260,3 +260,10 @@ config SYSV68_PARTITION
partition table format used by Motorola Delta machines (using
sysv68).
Otherwise, say N.
+
+config CMDLINE_PARTITION
+ bool "Command line partition support" if PARTITION_ADVANCED
+ select CMDLINE_PARSER
+ help
+ Say Y here if you would read the partitions table from bootargs.
+ The format for the command line is just like mtdparts.