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.
> - 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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