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block: Add SPL_BLOCK_CACHE and default n

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When enabling BLOCK_CACHE on devices with limited RAM during SPL,
some devices may not boot.  This creates an option to enable
block caching in SPL by defaults off.  It is dependent on SPL_BLK

Fixes: 46960ad6d0 ("block: Have BLOCK_CACHE default to y in some cases")

Signed-off-by: Adam Ford <aford173@gmail.com>
This commit is contained in:
Adam Ford
2018-06-11 17:17:48 -05:00
committed by Tom Rini
parent a1b73c1872
commit 6fef62cc47
3 changed files with 9 additions and 2 deletions
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2
include/blk.h
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@@ -111,7 +111,7 @@ struct blk_desc {
#define PAD_TO_BLOCKSIZE(size, blk_desc) \
(PAD_SIZE(size, blk_desc->blksz))
#ifdef CONFIG_BLOCK_CACHE
#if CONFIG_IS_ENABLED(BLOCK_CACHE)
/**
* blkcache_read() - attempt to read a set of blocks from cache
*