On Mon, Jun 8, 2015 at 10:34 PM, Tai Tri Nguyen <ttnguyen@xxxxxxx> wrote:
> Hi Dann,
>
> On Mon, Jun 8, 2015 at 8:44 PM, Dann Frazier <dann.frazier@xxxxxxxxxxxxx> wrote:
>> On Tue, Jun 2, 2015 at 1:19 PM, Tai Nguyen <ttnguyen@xxxxxxx> wrote:
>>> This patch adds syscon poweroff device node to support poweroff feature
>>> on APM X-Gene Mustang platform
>>
>> hey Tai,
>> The reboot changes work just fine for me, but poweroff does not:
>>
>> [ OK ] Reached target Final Step.
>> Starting Power-Off...
>> reboot: Power down
>> Unable to poweroff system
>> Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000000
>>
>> CPU: 0 PID: 1 Comm: systemd-shutdow Tainted: G W 4.1.0-rc7+ #1
>> Hardware name: APM X-Gene Mustang board (DT)
>> Call trace:
>> [<ffffffc00008990c>] dump_backtrace+0x0/0x11c
>> [<ffffffc000089a38>] show_stack+0x10/0x1c
>> [<ffffffc0005b447c>] dump_stack+0x88/0xc8
>> [<ffffffc0005b3374>] panic+0xe0/0x220
>> [<ffffffc0000b5f24>] do_exit+0x990/0x994
>> [<ffffffc0000d06bc>] SyS_reboot+0x14c/0x208
>> ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000000
>>
>> -dann
>>
>
> Thanks for testing my patches.
> On APM X-Gene Mustang platform, power off circuit is controlled by firmware.
> It requires a firmware update to support power off feature.
> May I ask what firmware version you're running on?
Sure, 1.15.12.
-dann
> Tai
>
>
>>> Signed-off-by: Tai Nguyen <ttnguyen@xxxxxxx>
>>> ---
>>> arch/arm64/boot/dts/apm/apm-mustang.dts | 12 ++++++++++++
>>> 1 file changed, 12 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/apm/apm-mustang.dts b/arch/arm64/boot/dts/apm/apm-mustang.dts
>>> index 83578e7..910d561 100644
>>> --- a/arch/arm64/boot/dts/apm/apm-mustang.dts
>>> +++ b/arch/arm64/boot/dts/apm/apm-mustang.dts
>>> @@ -23,6 +23,18 @@
>>> device_type = "memory";
>>> reg = < 0x1 0x00000000 0x0 0x80000000 >; /* Updated by bootloader */
>>> };
>>> +
>>> + poweroff_mbox: poweroff_mbox@10548000 {
>>> + compatible = "syscon";
>>> + reg = <0x0 0x10548000 0x0 0x30>;
>>> + };
>>> +
>>> + poweroff: poweroff@10548010 {
>>> + compatible = "syscon-poweroff";
>>> + regmap = <&poweroff_mbox>;
>>> + offset = <0x10>;
>>> + mask = <0x1>;
>>> + };
>>> };
>>>
>>> &pcie0clk {
>>> --
>>> 1.7.9.5
>>>
>>>
>>> _______________________________________________
>>> linux-arm-kernel mailing list
>>> linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
>>> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
>
>
> --
> Tai
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