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MIPS: BCM63xx: Sync MIPS counters during CPU bringup

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We are using the mips counters as the clock source, so we need to ensure
they are synced, else e.g. gettimeofday will return different values
depending on which core it was run.

Observed difference was about 8 seconds, causing ~8 seconds ping or time
running backwards for some programs.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7265/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Jonas Gorski 2014-07-08 16:26:13 +02:00 committed by Ralf Baechle
parent 00791887b1
commit fc264022a5
1 changed files with 1 additions and 0 deletions
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arch/mips/Kconfig
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@ -139,6 +139,7 @@ config BCM63XX
select BOOT_RAW
select CEVT_R4K
select CSRC_R4K
select SYNC_R4K
select DMA_NONCOHERENT
select IRQ_CPU
select SYS_SUPPORTS_32BIT_KERNEL