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Cr50: NvMem: Increase partition size from 0x2800 to 0x4000

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CONFIG_FLASH_NVMEM_SIZE was set to CFG_TOP_SIZE and then the partition
size was computed by dividing this value by 2. Changed this so that
now the partition size is set to CFG_TOP_SIZE and the total size is
the partition size * 2. Also reduced the CFG_TOP_SIZE to 0x4000 as
that should be plenty for TPM requirements and leaves room for future
gnubby use.

BRANCH=none
CQ-DEPEND=CL:379076
BUG=chrome-os-partner:56798
TEST=manual
Tested on Kevin, erased the existing NvMem area and verified that TPM
was still manufactured and executed the command: trunks_client --own
Erased parition 0 and 1 in the new locations and repeated the tests.

Change-Id: Ie8910bec641d8d1ff390be5b03b430bf39d18404
Signed-off-by: Scott <scollyer@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/379095
Commit-Ready: Bill Richardson <wfrichar@chromium.org>
Tested-by: Bill Richardson <wfrichar@chromium.org>
Tested-by: Scott Collyer <scollyer@chromium.org>
Tested-by: Andrey Pronin <apronin@chromium.org>
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
This commit is contained in:
Scott
2016-08-31 09:33:09 -07:00
committed by chrome-bot
parent 1d46c37708
commit de025c153b
2 changed files with 6 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
board/cr50/board.h
View File

@@ -21,7 +21,7 @@
/* TODO(crosbug.com/p/44745): For debugging only */
#define CONFIG_CMD_FLASH
/* We're using all of TOP_A for partition A, TOP_B for partition 1 */
/* We're using TOP_A for partition 0, TOP_B for partition 1 */
#define CONFIG_FLASH_NVMEM
/* Offset to start of NvMem area from base of flash */
#define CONFIG_FLASH_NVMEM_OFFSET_A (CFG_TOP_A_OFF)
@@ -31,10 +31,11 @@
CONFIG_FLASH_NVMEM_OFFSET_A)
#define CONFIG_FLASH_NVMEM_BASE_B (CONFIG_PROGRAM_MEMORY_BASE + \
CONFIG_FLASH_NVMEM_OFFSET_B)
/* Size in bytes of NvMem area */
#define CONFIG_FLASH_NVMEM_SIZE CFG_TOP_SIZE
/* Size partition in NvMem */
#define NVMEM_PARTITION_SIZE (CONFIG_FLASH_NVMEM_SIZE / NVMEM_NUM_PARTITIONS)
#define NVMEM_PARTITION_SIZE CFG_TOP_SIZE
/* Size in bytes of NvMem area */
#define CONFIG_FLASH_NVMEM_SIZE (CFG_TOP_SIZE * NVMEM_NUM_PARTITIONS)
/* Go to sleep when nothing else is happening */
#define CONFIG_LOW_POWER_IDLE

2
chip/g/config_chip.h
View File

@@ -95,7 +95,7 @@
* use these two areas for the same thing, it's just more convenient to make
* them the same size.
*/
#define CFG_TOP_SIZE 0x5000
#define CFG_TOP_SIZE 0x4000
#define CFG_TOP_A_OFF (CFG_FLASH_HALF - CFG_TOP_SIZE)
#define CFG_TOP_B_OFF (CONFIG_FLASH_SIZE - CFG_TOP_SIZE)