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Subject: Re: [RFC 0/2] Add workaround for core wake-up on IPI for i.MX8MQ
To:     Abel Vesa <abel.vesa@nxp.com>
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>
References: <20190610121346.15779-1-abel.vesa@nxp.com>
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From:   Martin Kepplinger <martink@posteo.de>
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Message-ID: <26d3834d-6fba-be48-5b3c-5abf86d121a7@posteo.de>
Date:   Fri, 8 Nov 2019 15:17:12 +0100
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On 08.11.19 12:50, Abel Vesa wrote:
> On 19-11-08 12:21:21, Martin Kepplinger wrote:
> 
>> Hi Leonard, hi Abel,
>>
>> Thanks for having a look! To sum up this problem and not to get confused:
>>
>> 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?
>>
> 
> OK, please fetch the branches called "imx8mq-err11171" from both following github repos and give it a try:
> 
> https://github.com/abelvesa/linux.git
> 
> and
> 
> https://github.com/abelvesa/arm-trusted-firmware.git
> 
> I just tested it. Works with defconfig.
> 

thanks for the reminder. I was missing IMX_SCU_PD appearently.

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

                         martin