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authorJimmy Huang <jimmy.huang@mediatek.com>2015-04-01 18:27:12 +0800
committerPatrick Georgi <pgeorgi@google.com>2015-04-22 09:01:40 +0200
commit6e41523e70b40c92b05c4d52a2b0ddb276e76921 (patch)
tree1693bf0a0700ae77fc06c544bb2ec180926c4df9 /src/mainboard/traverse/Kconfig
parent5d302c75d84ee71f1e4b7b36a7d67f96b74ee096 (diff)
arm64: save and restore cntfrq for secondary cpus
CNTFRQ_EL0 can only be set in highest implemented exception level. Save and restore CNTFRQ_EL0 for secondary cpus in coreboot. This patch fix the error below: SANITY CHECK: Unexpected variation in cntfrq. Boot CPU: 0x00000000c65d40, CPU1: 0x00000000000000 BRANCH=none BUG=none TEST=boot to kernel on oak board and check secondary cpu's cntfrq. confirmed cpu1's cntfrq is same as boot cpu's. Change-Id: I9fbc3c82c2544f0b59ec34b1d631dadf4b9d40eb Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: b47e4e649efc7f79f016522c7d8a240f98225598 Original-Signed-off-by: Jimmy Huang <jimmy.huang@mediatek.com> Original-Change-Id: I2d71b0ccfe42e8a30cd1367d10b0f8993431ef8c Original-Reviewed-on: https://chromium-review.googlesource.com/264914 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9921 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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