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
> 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
>
>
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