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authorƁukasz Majewski <l.majewski@samsung.com>2014-01-14 08:02:26 +0100
committerTom Rini <trini@ti.com>2014-01-17 08:04:28 -0500
commitc4e96dbfccef3d8089d94b23e3724ac313c68886 (patch)
treed784d9b753da57823d82587aada77536e41551ea
parentcdd15bcebc6ddd5365f2a1133f56cd3209f30288 (diff)
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config: Update envs for trats and trats2 - Disable L2 cache
Disable L2 caches for Trats and Trats2 devices. It turns out that for data downloading with thordown command L2 cache disablement brings a significant speed improvement. rootfs - 400 MiB: - L2 cache enabled: 2.69 MiB/s - L2 cache disabled: 5.56 MiB/s Such improvement is possible due to reduction of the need to invalidate redundant data, which resides in L2 cache. Since the sent USB request size at once is 512B (L1 - 32 KiB in total) - one can be quite confident that it is already available in L1 and L2 can be disabled. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Acked-by: Minkyu Kang <mk7.kang@samsung.com>
-rw-r--r--include/configs/trats.h1
-rw-r--r--include/configs/trats2.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/include/configs/trats.h b/include/configs/trats.h
index 0bdfe86..fdd8b46 100644
--- a/include/configs/trats.h
+++ b/include/configs/trats.h
@@ -27,6 +27,7 @@
#define CONFIG_DISPLAY_CPUINFO
#define CONFIG_DISPLAY_BOARDINFO
+#define CONFIG_SYS_L2CACHE_OFF
#ifndef CONFIG_SYS_L2CACHE_OFF
#define CONFIG_SYS_L2_PL310
#define CONFIG_SYS_PL310_BASE 0x10502000
diff --git a/include/configs/trats2.h b/include/configs/trats2.h
index f335280..892dd8e 100644
--- a/include/configs/trats2.h
+++ b/include/configs/trats2.h
@@ -30,6 +30,7 @@
#define CONFIG_SYS_CACHELINE_SIZE 32
+#define CONFIG_SYS_L2CACHE_OFF
#ifndef CONFIG_SYS_L2CACHE_OFF
#define CONFIG_SYS_L2_PL310
#define CONFIG_SYS_PL310_BASE 0x10502000