From c3330e9d6a11b6ead4a2346001338ce884b5832b Mon Sep 17 00:00:00 2001 From: Heiko Schocher Date: Fri, 17 Sep 2010 13:10:30 +0200 Subject: ARM (ARM926ejs): add data cache support, tested on magnesium and tx25 board Enable "cache" command on tx25 and magnesium board and test performance. Test 1: Loading 127 MB of data from NAND flash into RAM: Instr. Cache off on on Data Cache off off on -------------------------------------------------- magnesium 32,6s 22,5s 30s = x 1,09 tx25 (29MB only) 9,69s 5,05s 8,16s = x 1,19 Test 2: uncompressing a gzipped image from RAM to RAM (size compressed: 6.5 MiB, uncompressed: 35 MiB): Instr. Cache off on on Data Cache off off on -------------------------------------------------- magnesium 4,25s 2,08s 1,72s = x 2,47 tx25 4,82s 2,04s 1,84s = x 2,62 Portions of this work were supported by funding from the CE Linux Forum. Signed-off-by: Alessandro Rubini Signed-off-by: Heiko Schocher Cc: Alessandro Rubini --- include/configs/imx27lite-common.h | 1 + include/configs/tx25.h | 1 + 2 files changed, 2 insertions(+) (limited to 'include/configs') diff --git a/include/configs/imx27lite-common.h b/include/configs/imx27lite-common.h index 1da860261a..33550ba661 100644 --- a/include/configs/imx27lite-common.h +++ b/include/configs/imx27lite-common.h @@ -188,6 +188,7 @@ */ #include #define CONFIG_CMD_ASKENV +#define CONFIG_CMD_CACHE #define CONFIG_CMD_DHCP #define CONFIG_CMD_DIAG #define CONFIG_CMD_FAT diff --git a/include/configs/tx25.h b/include/configs/tx25.h index c8188ca525..013aa3541c 100644 --- a/include/configs/tx25.h +++ b/include/configs/tx25.h @@ -131,6 +131,7 @@ /* U-Boot commands */ #include #define CONFIG_CMD_NAND +#define CONFIG_CMD_CACHE /* * Ethernet -- cgit v1.2.1