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authorJimmy Zhang <jimmzhang@nvidia.com>2014-02-28 17:35:48 -0800
committerMarc Jones <marc.jones@se-eng.com>2014-11-13 06:26:19 +0100
commitc225e4c3350f1ec477478ec376924a098c961ddb (patch)
tree71d88258aef354c22b9cf4c4d5eaa39aefab3139 /documentation
parent78a1b8c81581f07c6e42519e68541201e4e41de9 (diff)
downloadcoreboot-c225e4c3350f1ec477478ec376924a098c961ddb.tar.xz
t124: nyan: Enable lock bit on pll
A PLL (Phase-Locked Loop) clock must be locked before it is assigned as clock source. Otherwise, this clock is unreliable. Before: c base(60006080): 48003201, misc(6000608c): 03000000 x base(600060e0): 40009e01, misc(600060e4): 00000000 p base(600060a0): 40002201, misc(600060ac): 00000200 u base(600060c0): 40005001, misc(600060cc): 00000300 d base(600060d0): 48011b0c, misc(600060dc): 40400800 dp base(60006590): 58305a01, misc(60006594): 40000000 After: c base(60006080): 48003201, misc(6000608c): 03000000 x base(600060e0): 48009e01, misc(600060e4): 00040000 p base(600060a0): 5801980c, misc(600060ac): 00040800 u base(600060c0): 48005001, misc(600060cc): 00400300 d base(600060d0): 48011b0c, misc(600060dc): 40400800 dp base(60006590): 58305a01, misc(60006594): 40000000 BUG=None TEST=build nyan and boot Original-Change-Id: I7e5a2eeb5b17f761e0c462ec68a8b221f327fedc Original-Signed-off-by: Jimmy Zhang <jimmzhang@nvidia.com> Original-Reviewed-on: https://chromium-review.googlesource.com/188447 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> (cherry picked from commit 7e8e2854b2b7d1ed20d74891c3d19b6c3dd41c55) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: Ief9efa6937af26fe1a10a7b360fc2f5477416b97 Reviewed-on: http://review.coreboot.org/7414 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
Diffstat (limited to 'documentation')
0 files changed, 0 insertions, 0 deletions