Workaround for Cortex A77 erratum 1925769
Cortex A77 erratum 1925769 is a Cat B erratum, present in older revisions of the Cortex A77 processor core. The workaround is to set bit 8 in the ECTLR_EL1 register, there is a small performance cost (<0.5%) for setting this bit. SDEN can be found here: https://documentation-service.arm.com/static/5f7c35d0d3be967f7be46d33 Signed-off-by: John Powell <john.powell@arm.com> Change-Id: I9cf0e0b5dc1e3e32e24279d2632c759cc7bd7ce9 |
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docs/design/cpu-specific-build-macros.rst |
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include/lib/cpus/aarch64/cortex_a77.h |
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lib/cpus/aarch64/cortex_a77.S |
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lib/cpus/cpu-ops.mk |
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