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From:   Abel Vesa <abel.vesa@nxp.com>
To:     Martin Kepplinger <martink@posteo.de>
CC:     Leonard Crestez <leonard.crestez@nxp.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
        Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Shawn Guo <shawnguo@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        Fabio Estevam <festevam@gmail.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Marc Zyngier <marc.zyngier@arm.com>,
        Lucas Stach <l.stach@pengutronix.de>,
        Jacky Bai <ping.bai@nxp.com>,
        "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
        Carlo Caione <ccaione@baylibre.com>,
        dl-linux-imx <linux-imx@nxp.com>,
        "linux-arm-kernel@lists.infradead.org" 
        <linux-arm-kernel@lists.infradead.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [RFC 0/2] Add workaround for core wake-up on IPI for i.MX8MQ
Thread-Topic: [RFC 0/2] Add workaround for core wake-up on IPI for i.MX8MQ
Thread-Index: AQHVH4Y/3naZJOmQTkOgrNdQmlNuA6eCDj6AgAAIBACAACkeAIAETB+A
Date:   Mon, 11 Nov 2019 07:54:42 +0000
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On 19-11-08 15:17:12, Martin Kepplinger wrote:
> On 08.11.19 12:50, Abel Vesa wrote:
> > On 19-11-08 12:21:21, Martin Kepplinger wrote:
> >=20
> >> Hi Leonard, hi Abel,
> >>
> >> Thanks for having a look! To sum up this problem and not to get confus=
ed:
> >>
> >> We have the workaround that changes irq-imx-gpcv2 from this very email
> >> thread, to be used with mainline ATF. when applying Abel's recent diff=
,
> >> Linux 5.4 boots but I still don't have a cpuidle driver.
> >>
> >> When I enable CONFIG_ARM_PSCI_CPUIDLE, the kernel hangs during boot
> >> (after probing mmc, but that doesn't tell much)
> >>
> >> What do I miss?
> >>
> >=20
> > OK, please fetch the branches called "imx8mq-err11171" from both follow=
ing github repos and give it a try:
> >=20
> > https://eur01.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fgit=
hub.com%2Fabelvesa%2Flinux.git&amp;data=3D02%7C01%7Cabel.vesa%40nxp.com%7C6=
63191bd4af6489d08f808d764565ca2%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%=
7C637088194388256459&amp;sdata=3DHydsZLtPExbRx7qDByTI%2FCYFGYS67fU9FDsLmHy7=
x7o%3D&amp;reserved=3D0
> >=20
> > and
> >=20
> > https://eur01.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fgit=
hub.com%2Fabelvesa%2Farm-trusted-firmware.git&amp;data=3D02%7C01%7Cabel.ves=
a%40nxp.com%7C663191bd4af6489d08f808d764565ca2%7C686ea1d3bc2b4c6fa92cd99c5c=
301635%7C0%7C0%7C637088194388256459&amp;sdata=3DzkCpOrEvoiNGj7BBuVuHzTWmBFa=
Zk0SCuePOKZA3T2o%3D&amp;reserved=3D0
> >=20
> > I just tested it. Works with defconfig.
> >=20
>=20
> thanks for the reminder. I was missing IMX_SCU_PD appearently.
>=20

There is no SCU on 8MQ so I don't think that was the problem.

Maybe something else.

> thanks for the effort, I hope this is useful for others too.

I'll try to keep those up-to-date.

>=20
>                          martin
>=20