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rockchip: block: blk-uclass: add bounce buffer flag to blk_desc

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Currently bounce buffer support is enabled for all block devices
when available. Add a flag to blk_desc to enable only on demand.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Johan Jonker
2023-10-18 16:01:10 +02:00
committed by Kever Yang
parent 80201eccaa
commit 81bd22e935
3 changed files with 7 additions and 2 deletions
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1
include/blk.h
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@@ -68,6 +68,7 @@ struct blk_desc {
/* device can use 48bit addr (ATA/ATAPI v7) */
bool lba48;
unsigned char atapi; /* Use ATAPI protocol */
unsigned char bb; /* Use bounce buffer */
lbaint_t lba; /* number of blocks */
unsigned long blksz; /* block size */
int log2blksz; /* for convenience: log2(blksz) */