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Message-ID: <CALdTtnt+6RLD8VVx0UzQX0-5CQCL5cN1zo-USHHvqO5o25=w0A@mail.gmail.com>
Date: Wed, 10 Jun 2015 13:13:31 -0600
From: Dann Frazier <dann.frazier@...onical.com>
To: Tai Tri Nguyen <ttnguyen@....com>
Cc: arm@...nel.org,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
patches <patches@....com>, Jon Masters <jcm@...hat.com>
Subject: Re: [PATCH 2/2 RESEND] power: reset: Add syscon poweroff device node
for APM X-Gene platform
On Tue, Jun 9, 2015 at 9:31 AM, Dann Frazier <dann.frazier@...onical.com> wrote:
> On Mon, Jun 8, 2015 at 10:34 PM, Tai Tri Nguyen <ttnguyen@....com> wrote:
>> Hi Dann,
>>
>> On Mon, Jun 8, 2015 at 8:44 PM, Dann Frazier <dann.frazier@...onical.com> wrote:
>>> On Tue, Jun 2, 2015 at 1:19 PM, Tai Nguyen <ttnguyen@....com> 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.
Tai worked with me offline. For reference, this requires an updated
SlimPro firmware in addition to the u-boot update. Verified it works
for me after the update, so:
Tested-by: dann frazier <dann.frazier@...oncial.com>
> -dann
>
>> Tai
>>
>>
>>>> Signed-off-by: Tai Nguyen <ttnguyen@....com>
>>>> ---
>>>> 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@...48000 {
>>>> + compatible = "syscon";
>>>> + reg = <0x0 0x10548000 0x0 0x30>;
>>>> + };
>>>> +
>>>> + poweroff: poweroff@...48010 {
>>>> + compatible = "syscon-poweroff";
>>>> + regmap = <&poweroff_mbox>;
>>>> + offset = <0x10>;
>>>> + mask = <0x1>;
>>>> + };
>>>> };
>>>>
>>>> &pcie0clk {
>>>> --
>>>> 1.7.9.5
>>>>
>>>>
>>>> _______________________________________________
>>>> linux-arm-kernel mailing list
>>>> linux-arm-kernel@...ts.infradead.org
>>>> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>>
>>
>>
>> --
>> Tai
--
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