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>
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