diff options
author | Grygorii Strashko <grygorii.strashko@ti.com> | 2016-12-05 09:27:44 +0530 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-15 13:42:57 +0100 |
commit | 05b7bdf1c3d8fe9c1bd92887a863a02c4cdcd207 (patch) | |
tree | 4540ed86477963b09edab40eaf806cc812742273 /arch/arm/mach-omap2/board-generic.c | |
parent | b8ba5faa7a6bdf1d8a86c1fc77651c566445402d (diff) |
ARM: omap2+: am437x: rollback to use omap3_gptimer_timer_init()
commit f86a2c875fd146d9b82c8fdd86d31084507bcf4c upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 bab814d2f37d..60f5e838a3bc 100644 --- a/arch/arm/mach-omap2/board-generic.c +++ b/arch/arm/mach-omap2/board-generic.c @@ -306,7 +306,7 @@ 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 |