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authorHauke Mehrtens <hauke@hauke-m.de>2014-07-28 23:53:57 +0200
committerRalf Baechle <ralf@linux-mips.org>2014-07-30 19:24:28 +0200
commit316cad5c1d4daee998cd1f83ccdb437f6f20d45c (patch)
treee3f8adde1c3927ee8a79cb36f2925423385f690f /arch/mips/bcm47xx
parent1bc2d3e38e5bf90af4e9d64e1696f2d39757355a (diff)
downloadlinux-316cad5c1d4daee998cd1f83ccdb437f6f20d45c.tar.bz2
MIPS: BCM47XX: make reboot more relaiable
The reboot on the BCM47XX SoCs is done, by setting the watchdog counter to 1 and let it trigger a reboot, when it reaches 0. Some devices with a BCM4705/BCM4785 SoC do not reboot when the counter is set to 1 and decreased to 0 by the hardware. It looks like it works more reliable when we set it to 3. As far as I understand the hardware, this should not make any difference, but I do not have access to any documentation for this SoC. It is still not 100% reliable. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Cc: zajec5@gmail.com Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7488/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/bcm47xx')
-rw-r--r--arch/mips/bcm47xx/setup.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c
index 63a4b0e915dc..cc75861c0187 100644
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -59,12 +59,12 @@ static void bcm47xx_machine_restart(char *command)
switch (bcm47xx_bus_type) {
#ifdef CONFIG_BCM47XX_SSB
case BCM47XX_BUS_TYPE_SSB:
- ssb_watchdog_timer_set(&bcm47xx_bus.ssb, 1);
+ ssb_watchdog_timer_set(&bcm47xx_bus.ssb, 3);
break;
#endif
#ifdef CONFIG_BCM47XX_BCMA
case BCM47XX_BUS_TYPE_BCMA:
- bcma_chipco_watchdog_timer_set(&bcm47xx_bus.bcma.bus.drv_cc, 1);
+ bcma_chipco_watchdog_timer_set(&bcm47xx_bus.bcma.bus.drv_cc, 3);
break;
#endif
}