Commit Graph

3 Commits

Author SHA1 Message Date
laurenw-arm aa3efe3df8 Workaround for Cortex A77 erratum 1508412
Cortex A77 erratum 1508412 is a Cat B Errata present in r0p0 and r1p0.
The workaround is a write sequence to several implementation defined
registers based on A77 revision.

This errata is explained in this SDEN:
https://static.docs.arm.com/101992/0010/Arm_Cortex_A77_MP074_Software_Developer_Errata_Notice_v10.pdf

Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
Change-Id: I217993cffb3ac57c313db8490e7b8a7bb393379b
2020-09-25 15:41:56 -05:00
johpow01 62bbfe82c8 Workaround for Cortex A77 erratum 1800714
Cortex A77 erratum 1800714 is a Cat B erratum, present in older
revisions of the Cortex A77 processor core.  The workaround is to
set a bit in the ECTLR_EL1 system register, which disables allocation
of splintered pages in the L2 TLB.

Since this is the first errata workaround implemented for Cortex A77,
this patch also adds the required cortex_a77_reset_func in the file
lib/cpus/aarch64/cortex_a77.S.

This errata is explained in this SDEN:
https://static.docs.arm.com/101992/0010/Arm_Cortex_A77_MP074_Software_Developer_Errata_Notice_v10.pdf

Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: I844de34ee1bd0268f80794e2d9542de2f30fd3ad
2020-06-25 14:50:58 +00:00
Balint Dobszay f363deb6d4 Rename Cortex-Deimos to Cortex-A77
Change-Id: I755e4c42242d9a052570fd1132ca3d937acadb13
Signed-off-by: Balint Dobszay <balint.dobszay@arm.com>
2019-07-10 12:14:20 +02:00