于 2012年07月10日 00:40, Kevin Hilman 写道:
Zumeng Chen<zumeng.chen@xxxxxxxxxxxxx> writes:
The offset of WKUP_MOD is not right for the PRM_RSTST of OMAP3. So here
put the right one to match to the actual physical addr 0x48307258, which
defined in PRCM Registers section.
And there is a MPU_WD_RST bit in PRM_RSTST(0x48307258) holding the signal
from omap-wdt reboot, so that we can return WDIOF_CARDRESET if the board
wakes up from omap-wdt reboot for WDIOC_GETBOOTSTATUS ioctl.
Signed-off-by: Zumeng Chen<zumeng.chen@xxxxxxxxxxxxx>
---
arch/arm/mach-omap2/prcm.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/prcm.c b/arch/arm/mach-omap2/prcm.c
index 480f40a..4dcc706 100644
--- a/arch/arm/mach-omap2/prcm.c
+++ b/arch/arm/mach-omap2/prcm.c
@@ -49,8 +49,11 @@ void __iomem *prcm_mpu_base;
u32 omap_prcm_get_reset_sources(void)
{
/* XXX This presumably needs modification for 34XX */
While you're fixing this for OMAP3, you can remove this comment as well.
No problem, I'll update it in V2. Thanks for your kind reminder :-)
Regards,
Zumeng
- if (cpu_is_omap24xx() || cpu_is_omap34xx())
+ if (cpu_is_omap24xx())
return omap2_prm_read_mod_reg(WKUP_MOD, OMAP2_RM_RSTST)& 0x7f;
+ if (cpu_is_omap34xx())
+ return omap2_prm_read_mod_reg(OMAP3430_GR_MOD, OMAP2_RM_RSTST)&
+ 0x7f;
if (cpu_is_omap44xx())
return omap2_prm_read_mod_reg(WKUP_MOD, OMAP4_RM_RSTST)& 0x7f;
Kevin
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