brain-hackers_pepepper-mirror/u-boot-brain
1
0
Fork 0
mirror of https://github.com/brain-hackers/u-boot-brain synced 2024-09-29 16:10:24 +09:00
Code Issues Projects Releases Wiki Activity

configs: vcoreiii: Change CONFIG_ENV_SIZE

Browse Source 
Shrink the environment size for 3 reasons:

 - reading the environment it is slow, therefore having a smaller env
   improves the speed.
 - usually in the environment there are only few variables, therefore
   the enviromnent is almost empty.
 - because the same image can run on different boards which may have
   different flashes with different page sizes, the CONFIG_ENV_SECT_SIZE
   can't be change, it is set to least common multiple of the page sizes.

Adding this change improves the boot time. Before update for reading the
entire environment it took ~850 msec, after the change it takes ~40 msecs.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
This commit is contained in:
Horatiu Vultur 2019-04-08 13:32:18 +02:00 committed by Daniel Schwierzeck
parent 27fc2f281c
commit b158e56f34
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/configs/vcoreiii.h
View File

@ -27,7 +27,7 @@
#if defined(CONFIG_ENV_IS_IN_SPI_FLASH) && !defined(CONFIG_ENV_OFFSET)
#define CONFIG_ENV_OFFSET (1024 * 1024)
#define CONFIG_ENV_SIZE (256 * 1024)
#define CONFIG_ENV_SIZE (8 * 1024)
#define CONFIG_ENV_SECT_SIZE (256 * 1024)
#define CONFIG_SYS_REDUNDAND_ENVIRONMENT