diff options
author | Simon Glass <sjg@chromium.org> | 2016-05-01 22:52:30 +0300 |
---|---|---|
committer | Simon Glass <sjg@chromium.org> | 2016-05-17 18:54:43 +0300 |
commit | cd0fb55b640b2991c1d29122d252a360037ed903 (patch) | |
tree | 65333e1eec999d760682765b6913d9ec0d94abb5 /drivers | |
parent | 69f45cd53b8ad8bc3afef2cf2410baf58fe75a6f (diff) | |
download | u-boot-cd0fb55b640b2991c1d29122d252a360037ed903.tar.xz |
dm: blk: Add functions to select a hardware partition
The block device uclass does not currently support selecting a particular
hardware partition but this is needed for MMC. Add it so that the blk API
can support MMC properly.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/block/blk-uclass.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/block/blk-uclass.c b/drivers/block/blk-uclass.c index a37239ee50..6ba1026f58 100644 --- a/drivers/block/blk-uclass.c +++ b/drivers/block/blk-uclass.c @@ -165,6 +165,18 @@ static int get_desc(enum if_type if_type, int devnum, struct blk_desc **descp) return found_more ? -ENOENT : -ENODEV; } +int blk_select_hwpart_devnum(enum if_type if_type, int devnum, int hwpart) +{ + struct udevice *dev; + int ret; + + ret = blk_get_device(if_type, devnum, &dev); + if (ret) + return ret; + + return blk_select_hwpart(dev, hwpart); +} + int blk_list_part(enum if_type if_type) { struct blk_desc *desc; @@ -291,6 +303,23 @@ ulong blk_write_devnum(enum if_type if_type, int devnum, lbaint_t start, return blk_dwrite(desc, start, blkcnt, buffer); } +int blk_select_hwpart(struct udevice *dev, int hwpart) +{ + const struct blk_ops *ops = blk_get_ops(dev); + + if (!ops) + return -ENOSYS; + if (!ops->select_hwpart) + return 0; + + return ops->select_hwpart(dev, hwpart); +} + +int blk_dselect_hwpart(struct blk_desc *desc, int hwpart) +{ + return blk_select_hwpart(desc->bdev, hwpart); +} + int blk_first_device(int if_type, struct udevice **devp) { struct blk_desc *desc; |