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| author | Stefan Roese <sr@denx.de> | 2015-09-17 17:30:29 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2015-09-23 03:53:36 +0200 |
| commit | e1df080b0d8b1bf9ed3e6a01a647192b2c90c72a (patch) | |
| tree | 332b9191cb14d44ccb5a455d70bd3afc266bdbb0 /include | |
| parent | 8a5f6129d1450f5ff92a55cfcfd7b96ee019e303 (diff) | |
| download | talos-obmc-uboot-e1df080b0d8b1bf9ed3e6a01a647192b2c90c72a.tar.gz talos-obmc-uboot-e1df080b0d8b1bf9ed3e6a01a647192b2c90c72a.zip | |
arm: socfpga: Fix cache configuration
By not defining CONFIG_SYS_ARM_CACHE_WRITEALLOC, the WRITEBACK cache
policy is selected. This leads to much better performance on the SoCFPGA.
A quick network test shows this:
Without this patch:
=> tftp 100000 big-40mb
Speed: 1000, full duplex
Using dwmac.ff702000 device
TFTP from server 192.168.1.54; our IP address is 192.168.1.252
Filename 'big-40mb'.
Load address: 0x100000
Loading: #################################################################
#################################################################
#################################################################
#################################################################
##########################
2.5 MiB/s
With this patch:
=> tftp 100000 big-40mb
Speed: 1000, full duplex
Using dwmac.ff702000 device
TFTP from server 192.168.1.54; our IP address is 192.168.1.252
Filename 'big-40mb'.
Load address: 0x100000
Loading: #################################################################
#################################################################
#################################################################
#################################################################
##########################
7.6 MiB/s
A performance improvement of factor ~3.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Chin Liang See <clsee@altera.com>
Cc: Pavel Machek <pavel@denx.de>
Cc: Marek Vasut <marex@denx.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/configs/socfpga_common.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/configs/socfpga_common.h b/include/configs/socfpga_common.h index 38ae763653..a2811bacd2 100644 --- a/include/configs/socfpga_common.h +++ b/include/configs/socfpga_common.h @@ -73,7 +73,6 @@ /* * Cache */ -#define CONFIG_SYS_ARM_CACHE_WRITEALLOC #define CONFIG_SYS_CACHELINE_SIZE 32 #define CONFIG_SYS_L2_PL310 #define CONFIG_SYS_PL310_BASE SOCFPGA_MPUL2_ADDRESS |
