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Modified flash API batch write logic to respect row boundaries.

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* Added MACRO for specifying row size of flash device.
* Set chip/g specific values for flash row size.

The flash API for g/chip will segment large write operations into a
maximum of 32 word blocks for batch writes to flash memory. Prior to
the change in this commit, the segmentation will adhere to avoiding
crossing page boundaries (2048B) but will not respect row boundaries
(256B). The flash controller will reject any write op that crosses a
row boundary and set a row boundary violation code on its error
register.

BRANCH=none
BUG=b:30819377
TEST=make BOARD=haven_dev
Change-Id: I489122ec0f0db6374dd373a1385c3012bdface20
Reviewed-on: https://chromium-review.googlesource.com/371003
Commit-Ready: Bill Richardson <wfrichar@chromium.org>
Commit-Ready: Johnnie Chan <johnniec@google.com>
Tested-by: Johnnie Chan <johnniec@google.com>
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
This commit is contained in:
Johnnie Chan
2016-08-13 00:04:30 -07:00
committed by chrome-bot
parent c5bd6d98b9
commit dbd62c36da
3 changed files with 6 additions and 3 deletions
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1
include/config.h
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@@ -835,6 +835,7 @@
#undef CONFIG_FLASH_BANK_SIZE
#undef CONFIG_FLASH_ERASED_VALUE32
#undef CONFIG_FLASH_ERASE_SIZE
#undef CONFIG_FLASH_ROW_SIZE
/* Base address of program memory */
#undef CONFIG_PROGRAM_MEMORY_BASE