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9bef306b6b
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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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.