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authorMartin Blumenstingl <martin.blumenstingl@googlemail.com>2017-11-01 01:23:15 +0300
committerKevin Hilman <khilman@baylibre.com>2017-12-07 04:03:46 +0300
commit9bef306b6ba250e20e49efb08a447d4bf95b7184 (patch)
tree140c203d826b98fb2080bcfcbee3fa2369ab97eb /arch/arm/boot/dts/at91sam9x5ek.dtsi
parent4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323 (diff)
downloadlinux-9bef306b6ba250e20e49efb08a447d4bf95b7184.tar.xz
ARM: dts: meson8b: add more L2 cache settings
Amlogic's vendor kernel prints these PL310 L2 cache controller settings during boot: 8 ways, 2048 sets, CACHE_ID 0x4100a0c9, Cache size: 524288 B AUX_CTRL 0x7ec60001, PERFETCH_CTRL 0x75000007, POWER_CTRL 0x00000000 TAG_LATENCY 0x00000111, DATA_LATENCY 0x00000222 Add the "prefetch-data", "prefetch-instr" and "arm,shared-override" properties to get the same L2 cache controller configuration as the vendor kernel. Four differences still remain: - L310_AUX_CTRL_EARLY_BRESP is enabled by the vendor kernel, however this is only supported on Cortex-A9 cores (Meson8b has Cortex-A5 cores though) - L310_AUX_CTRL_NS_INT_CTRL is currently not supported by the cache-l2x0 driver - bit 23 is set by the vendor kernel, but this is defined in cache-l2x0.h - L310_AUX_CTRL_FULL_LINE_ZERO is enabled by the vendor kernel which is also only supported on Cortex-A9 cores Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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