From: shawnguo@kernel.org (Shawn Guo)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 2/4] arm64: add basic DTS for i.MX8MQ
Date: Mon, 5 Feb 2018 16:45:06 +0800 [thread overview]
Message-ID: <20180205084505.GV31354@dragon> (raw)
In-Reply-To: <HE1PR04MB3113FF72B02D642392D625DF87F90@HE1PR04MB3113.eurprd04.prod.outlook.com>
On Fri, Feb 02, 2018 at 08:13:56AM +0000, Jacky Bai wrote:
> > Subject: [PATCH v2 2/4] arm64: add basic DTS for i.MX8MQ
> >
> > This adds the basic DTS for the i.MX8MQ.
> > For now only the following peripherals are supported:
> > - IOMUXC (pin controller)
> > - CCM (clock controller)
> > - GPIO
> > - UART
> > - uSDHC (SD/eMMC controller)
> > - FEC (ethernet controller)
> > - i2c
> >
> > This is enough to get a very basic board support up and running.
> >
> > One known limitation is that the driver for the GPC interrupt
> > controller is still missing, rendering the CPU sleep states unusable
> > as there is nothing waking them up anymore. This will be fixed in
> > due course.
> >
>
> The cpu sleep states can NOT be supported in community kernel due to hardware limitation.
Jacky,
Can you elaborate your comment a bit? If it's a hardware limitation, I
guess not only community but also vendor kernel has no way to support
sleep states, right?
Shawn
WARNING: multiple messages have this Message-ID (diff)
From: Shawn Guo <shawnguo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Jacky Bai <ping.bai-3arQi8VN3Tc@public.gmane.org>
Cc: Lucas Stach <l.stach-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
"devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Baruch Siach <baruch-NswTu9S1W3P6gbPvEgmw2w@public.gmane.org>,
Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>,
Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>,
"patchwork-lst-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org"
<patchwork-lst-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
dl-linux-imx <linux-imx-3arQi8VN3Tc@public.gmane.org>,
"kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org"
<kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
Fabio Estevam <fabio.estevam-3arQi8VN3Tc@public.gmane.org>,
"A.s. Dong" <aisheng.dong-3arQi8VN3Tc@public.gmane.org>,
"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>
Subject: Re: [PATCH v2 2/4] arm64: add basic DTS for i.MX8MQ
Date: Mon, 5 Feb 2018 16:45:06 +0800 [thread overview]
Message-ID: <20180205084505.GV31354@dragon> (raw)
In-Reply-To: <HE1PR04MB3113FF72B02D642392D625DF87F90-6LN7OEpIatW7Zxc5AHJ2m89NdZoXdze2vxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
On Fri, Feb 02, 2018 at 08:13:56AM +0000, Jacky Bai wrote:
> > Subject: [PATCH v2 2/4] arm64: add basic DTS for i.MX8MQ
> >
> > This adds the basic DTS for the i.MX8MQ.
> > For now only the following peripherals are supported:
> > - IOMUXC (pin controller)
> > - CCM (clock controller)
> > - GPIO
> > - UART
> > - uSDHC (SD/eMMC controller)
> > - FEC (ethernet controller)
> > - i2c
> >
> > This is enough to get a very basic board support up and running.
> >
> > One known limitation is that the driver for the GPC interrupt
> > controller is still missing, rendering the CPU sleep states unusable
> > as there is nothing waking them up anymore. This will be fixed in
> > due course.
> >
>
> The cpu sleep states can NOT be supported in community kernel due to hardware limitation.
Jacky,
Can you elaborate your comment a bit? If it's a hardware limitation, I
guess not only community but also vendor kernel has no way to support
sleep states, right?
Shawn
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next prev parent reply other threads:[~2018-02-05 8:45 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-01 18:31 [PATCH v2 1/4] arm64: add basic Kconfig symbols for i.MX8 Lucas Stach
2018-02-01 18:31 ` Lucas Stach
2018-02-01 18:31 ` [PATCH v2 2/4] arm64: add basic DTS for i.MX8MQ Lucas Stach
2018-02-01 18:31 ` Lucas Stach
2018-02-02 8:13 ` Jacky Bai
2018-02-02 8:13 ` Jacky Bai
2018-02-05 8:45 ` Shawn Guo [this message]
2018-02-05 8:45 ` Shawn Guo
2018-02-05 9:07 ` Jacky Bai
2018-02-05 9:07 ` Jacky Bai
2018-02-05 6:09 ` Rob Herring
2018-02-05 6:09 ` Rob Herring
2018-02-05 15:00 ` Marc Zyngier
2018-02-05 15:00 ` Marc Zyngier
2018-02-25 10:47 ` A.s. Dong
2018-02-25 10:47 ` A.s. Dong
2018-02-26 3:17 ` Shawn Guo
2018-02-26 3:17 ` Shawn Guo
2018-02-26 6:52 ` A.s. Dong
2018-02-26 6:52 ` A.s. Dong
2018-02-26 7:09 ` Shawn Guo
2018-02-26 7:09 ` Shawn Guo
2018-02-26 8:07 ` A.s. Dong
2018-02-26 8:07 ` A.s. Dong
2018-03-09 3:23 ` Shawn Guo
2018-03-09 3:23 ` Shawn Guo
2018-02-01 18:31 ` [PATCH v2 3/4] arm64: add support for i.MX8M EVK board Lucas Stach
2018-02-01 18:31 ` Lucas Stach
2018-02-05 6:09 ` Rob Herring
2018-02-05 6:09 ` Rob Herring
2018-02-05 7:24 ` Baruch Siach
2018-02-05 7:24 ` Baruch Siach
2018-02-05 11:10 ` Lucas Stach
2018-02-05 11:10 ` Lucas Stach
2018-02-23 3:46 ` Shawn Guo
2018-02-23 3:46 ` Shawn Guo
2018-02-23 4:32 ` Baruch Siach
2018-02-23 4:32 ` Baruch Siach
2018-02-23 7:05 ` Shawn Guo
2018-02-23 7:05 ` Shawn Guo
2018-02-23 15:03 ` Shawn Guo
2018-02-23 15:03 ` Shawn Guo
2018-02-23 15:30 ` Juergen Borleis
2018-02-23 15:30 ` Juergen Borleis
2018-02-23 15:46 ` Lucas Stach
2018-02-23 15:46 ` Lucas Stach
2018-02-24 2:58 ` Bough Chen
2018-02-24 2:58 ` Bough Chen
2018-02-24 6:00 ` Shawn Guo
2018-02-24 6:00 ` Shawn Guo
2018-02-25 9:54 ` A.s. Dong
2018-02-25 9:54 ` A.s. Dong
2018-02-23 15:45 ` Lucas Stach
2018-02-23 15:45 ` Lucas Stach
2018-02-25 10:00 ` A.s. Dong
2018-02-25 10:00 ` A.s. Dong
2018-02-01 18:31 ` [PATCH v2 4/4] MAINTAINERS: add i.MX8 DT path to i.MX architecture Lucas Stach
2018-02-01 18:31 ` Lucas Stach
2018-02-23 14:56 ` [PATCH v2 1/4] arm64: add basic Kconfig symbols for i.MX8 Shawn Guo
2018-02-23 14:56 ` Shawn Guo
2018-02-25 10:17 ` A.s. Dong
2018-02-25 10:17 ` A.s. Dong
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