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| author | Grygorii Strashko <grygorii.strashko@ti.com> | 2016-12-05 09:27:44 +0530 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2016-12-27 09:38:04 -0800 |
| commit | f86a2c875fd146d9b82c8fdd86d31084507bcf4c (patch) | |
| tree | bf64062ee6c23761c5cc910b9d6cc2db60e30f9d /arch/arm/mach-omap2/board-generic.c | |
| parent | 7245f67f86e847769f41dacad26bb8f5b5d74bf4 (diff) | |
| download | op-kernel-dev-f86a2c875fd146d9b82c8fdd86d31084507bcf4c.zip op-kernel-dev-f86a2c875fd146d9b82c8fdd86d31084507bcf4c.tar.gz | |
ARM: omap2+: am437x: rollback to use omap3_gptimer_timer_init()
The commit 55ee7017ee31 ("arm: omap2: board-generic: use
omap4_local_timer_init for AM437x") unintentionally changes the
clocksource devices for AM437x from OMAP GP Timer to SyncTimer32K.
Unfortunately, the SyncTimer32K is starving from frequency deviation
as mentioned in commit 5b5c01359152 ("ARM: OMAP2+: AM43x: Use gptimer
as clocksource") and, as reported by Franklin [1], even its monotonic
nature is under question (most probably there is a HW issue, but it's
still under investigation).
Taking into account above facts It's reasonable to rollback to the use
of omap3_gptimer_timer_init().
[1] http://www.spinics.net/lists/linux-omap/msg127425.html
Fixes: 55ee7017ee31 ("arm: omap2: board-generic: use
omap4_local_timer_init for AM437x")
Reported-by: Cooper Jr., Franklin <fcooper@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2/board-generic.c')
| -rw-r--r-- | arch/arm/mach-omap2/board-generic.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c index 36d9943..dc9e34e 100644 --- a/arch/arm/mach-omap2/board-generic.c +++ b/arch/arm/mach-omap2/board-generic.c @@ -304,7 +304,7 @@ DT_MACHINE_START(AM43_DT, "Generic AM43 (Flattened Device Tree)") .init_late = am43xx_init_late, .init_irq = omap_gic_of_init, .init_machine = omap_generic_init, - .init_time = omap4_local_timer_init, + .init_time = omap3_gptimer_timer_init, .dt_compat = am43_boards_compat, .restart = omap44xx_restart, MACHINE_END |
