configs: vcoreiii: Change CONFIG_ENV_SIZE

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>

diff --git a/include/configs/vcoreiii.h b/include/configs/vcoreiii.h
index aeef58db42bad0e35b1c72b8250d5d279a96fe2e..8c68372026e9f089df5062bb9430ab5fc1751105 100644 (file)
--- a/include/configs/vcoreiii.h
+++ b/include/configs/vcoreiii.h
@@ -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