Tony Lindgren <tony@xxxxxxxxxxx> writes:
> * Juha Yrjola <juha.yrjola@xxxxxxxxxxxxx> [090308 10:20]:
>> The reboot mode can be communicated to a bootloader (or the
>> kernel itself) with a scratchpad register. This functionality
>> is especially useful, if userspace is allowed to change
>> the reboot mode.
>>
>> Signed-off-by: Juha Yrjola <juha.yrjola@xxxxxxxxxxxxx>
>> ---
>> arch/arm/mach-omap2/prcm.c | 10 ++++++++--
>> 1 files changed, 8 insertions(+), 2 deletions(-)
>>
>> diff --git a/arch/arm/mach-omap2/prcm.c b/arch/arm/mach-omap2/prcm.c
>> index f945156..2bd239e 100644
>> --- a/arch/arm/mach-omap2/prcm.c
>> +++ b/arch/arm/mach-omap2/prcm.c
>> @@ -43,9 +43,15 @@ void omap_prcm_arch_reset(char mode)
>>
>> if (cpu_is_omap24xx())
>> prcm_offs = WKUP_MOD;
>> - else if (cpu_is_omap34xx())
>> + else if (cpu_is_omap34xx()) {
>> + u32 l;
>> +
>> prcm_offs = OMAP3430_GR_MOD;
>> - else
>> + l = ('B' << 24) | ('M' << 16) | mode;
>> + /* Reserve the first word in scratchpad for communicating
>> + * with the boot ROM. */
>> + omap_writel(l, OMAP343X_SCRATCHPAD + 4);
>> + } else
>> WARN_ON(1);
>>
>> prm_set_mod_reg_bits(OMAP_RST_DPLL3, prcm_offs, RM_RSTCTRL);
>
> Looks OK to me, any comments from Kevin or Paul?
>
Acked-by: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx>
I've had this one in the PM branch for awhile now I think can go upstream.
Kevin
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