Messages in this thread | | | Date | Mon, 22 Nov 2021 08:46:38 +0800 | From | Shawn Guo <> | Subject | Re: [PATCH v2 2/3] ARM: dts: imx6qdl: tqma6: add ERR006687 hardware workaround for "a" variant |
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On Wed, Nov 03, 2021 at 12:56:17PM +0100, Matthias Schiffer wrote: > The TQMa6x "a" has a workaround for ERR006687 implemented in hardware. > Add the required pinmuxing and related setup to make use of this. > > As board DTS files based on the TQMa6x SoMs will define their own > pinmuxing for the FEC ethernet controller as well, we can't apply this > pin group unconditionally; instead, it is the responsibility of the > board DTs derived from imx6qdl-tqma6a.dtsi to include this group. > > Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
"ARM: dts: imx6qdl-tqma6: ..." for subject prefix.
Shawn
> --- > > v2: no changes > > arch/arm/boot/dts/imx6qdl-tqma6a.dtsi | 20 ++++++++++++++++++++ > 1 file changed, 20 insertions(+) > > diff --git a/arch/arm/boot/dts/imx6qdl-tqma6a.dtsi b/arch/arm/boot/dts/imx6qdl-tqma6a.dtsi > index b679bec78e6c..bfb67da64b96 100644 > --- a/arch/arm/boot/dts/imx6qdl-tqma6a.dtsi > +++ b/arch/arm/boot/dts/imx6qdl-tqma6a.dtsi > @@ -4,6 +4,12 @@ > * Copyright 2013-2017 Markus Niebel <Markus.Niebel@tq-group.com> > */ > > +&fec { > + interrupts-extended = <&gpio1 6 IRQ_TYPE_LEVEL_HIGH>, > + <&intc 0 119 IRQ_TYPE_LEVEL_HIGH>; > + fsl,err006687-workaround-present; > +}; > + > &i2c1 { > pinctrl-names = "default"; > pinctrl-0 = <&pinctrl_i2c1>; > @@ -26,3 +32,17 @@ > pagesize = <32>; > }; > }; > + > +&iomuxc { > + /* > + * This pinmuxing is required for the ERR006687 workaround. Board > + * DTS files that enable the FEC controller with > + * fsl,err006687-workaround-present must include this group. > + */ > + pinctrl_enet_fix: enetfixgrp { > + fsl,pins = < > + /* ENET ping patch */ > + MX6QDL_PAD_GPIO_6__ENET_IRQ 0x000b1 > + >; > + }; > +}; > -- > 2.17.1 >
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