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Received: from DB8PR04MB7065.eurprd04.prod.outlook.com (2603:10a6:10:127::9) by AM7PR04MB7173.eurprd04.prod.outlook.com (2603:10a6:20b:122::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8137.28; Mon, 11 Nov 2024 03:09:42 +0000 Received: from DB8PR04MB7065.eurprd04.prod.outlook.com ([fe80::8af7:8659:9d42:bd84]) by DB8PR04MB7065.eurprd04.prod.outlook.com ([fe80::8af7:8659:9d42:bd84%3]) with mapi id 15.20.8137.027; Mon, 11 Nov 2024 03:09:40 +0000 Date: Mon, 11 Nov 2024 11:08:47 +0800 From: Pengfei Li To: Alexander Stein Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-arm-kernel@lists.infradead.org, joao.goncalves@toradex.com, frieder.schrempf@kontron.de, marex@denx.de, hvilleneuve@dimonoff.com, peng.fan@nxp.com, m.othacehe@gmail.com, mwalle@kernel.org, Max.Merchel@ew.tq-group.com, hiago.franco@toradex.com, tharvey@gateworks.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, ping.bai@nxp.com, ye.li@nxp.com, aisheng.dong@nxp.com, frank.li@nxp.com Subject: Re: [PATCH 2/3] arm64: dts: freescale: Add i.MX91 dtsi support Message-ID: References: <20241108022703.1877171-1-pengfei.li_1@nxp.com> <1907807.tdWV9SEqCh@steina-w> <22489205.EfDdHjke4D@steina-w> Content-Type: text/plain; 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November 2024, 11:06:26 CET schrieb Pengfei Li: > > On Thu, Nov 07, 2024 at 02:06:27PM +0100, Alexander Stein wrote: > > > Am Donnerstag, 7. November 2024, 13:49:50 CET schrieb Alexander Stein: > > > > > diff --git a/arch/arm64/boot/dts/freescale/imx91.dtsi b/arch/arm64/boot/dts/freescale/imx91.dtsi > > > > > new file mode 100644 > > > > > index 000000000000..a9f4c1fe61cc > > > > > --- /dev/null > > > > > +++ b/arch/arm64/boot/dts/freescale/imx91.dtsi > > > > > @@ -0,0 +1,66 @@ > > > > > +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) > > > > > +/* > > > > > + * Copyright 2024 NXP > > > > > + */ > > > > > + > > > > > +#include "imx91-pinfunc.h" > > > > > +#include "imx93.dtsi" > > > > > + > > > > > +&{/thermal-zones/cpu-thermal/cooling-maps/map0} { > > > > > + cooling-device = > > > > > + <&A55_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; > > > > > +}; > > > > > + > > > > > +&clk { > > > > > + compatible = "fsl,imx91-ccm"; > > > > > +}; > > > > > + > > > > > +&eqos { > > > > > + clocks = <&clk IMX91_CLK_ENET1_QOS_TSN_GATE>, > > > > > + <&clk IMX91_CLK_ENET1_QOS_TSN_GATE>, > > > > > + <&clk IMX91_CLK_ENET_TIMER>, > > > > > + <&clk IMX91_CLK_ENET1_QOS_TSN>, > > > > > + <&clk IMX91_CLK_ENET1_QOS_TSN_GATE>; > > > > > + assigned-clocks = <&clk IMX91_CLK_ENET_TIMER>, > > > > > + <&clk IMX91_CLK_ENET1_QOS_TSN>; > > > > > + assigned-clock-parents = <&clk IMX93_CLK_SYS_PLL_PFD1_DIV2>, > > > > > + <&clk IMX93_CLK_SYS_PLL_PFD0_DIV2>; > > > > > > > > Is it just me or is the alignment of new lines not matching? > > > > > > > > > > > > > +}; > > > > > + > > > > > +&fec { > > > > > + clocks = <&clk IMX91_CLK_ENET2_REGULAR_GATE>, > > > > > + <&clk IMX91_CLK_ENET2_REGULAR_GATE>, > > > > > + <&clk IMX91_CLK_ENET_TIMER>, > > > > > + <&clk IMX91_CLK_ENET2_REGULAR>, > > > > > + <&clk IMX93_CLK_DUMMY>; > > > > > + assigned-clocks = <&clk IMX91_CLK_ENET_TIMER>, > > > > > + <&clk IMX91_CLK_ENET2_REGULAR>; > > > > > + assigned-clock-parents = <&clk IMX93_CLK_SYS_PLL_PFD1_DIV2>, > > > > > + <&clk IMX93_CLK_SYS_PLL_PFD0_DIV2>; > > > > > > > > Here as well: Is it just me or is the alignment of new lines not matching? > > > > > > > > > + assigned-clock-rates = <100000000>, <250000000>; > > > > > +}; > > > > > + > > > > > +&i3c1 { > > > > > + clocks = <&clk IMX93_CLK_BUS_AON>, > > > > > + <&clk IMX93_CLK_I3C1_GATE>, > > > > > + <&clk IMX93_CLK_DUMMY>; > > > > > +}; > > > > > + > > > > > +&i3c2 { > > > > > + clocks = <&clk IMX93_CLK_BUS_WAKEUP>, > > > > > + <&clk IMX93_CLK_I3C2_GATE>, > > > > > + <&clk IMX93_CLK_DUMMY>; > > > > > +}; > > > > > + > > > > > +&tmu { > > > > > + status = "disabled"; > > > > > > > > Why does the TMU needs to be disabled instead of deleted? > > > > > > > > > +}; > > > > > + > > > > > +/* i.MX91 only has one A core */ > > > > > +/delete-node/ &A55_1; > > > > > + > > > > > +/* i.MX91 not has cm33 */ > > > > > +/delete-node/ &cm33; > > > > > + > > > > > +/* i.MX91 not has power-domain@44461800 */ > > > > > +/delete-node/ &mlmix; > > > > > > > > > > > > > Shouldn't the following node also be removed? > > > > * mipi_csi > > > > * dsi > > > > * lvds_bridge > > > > * lcdif_to_dsi > > > > * lcdif_to_ldb > > > > > > Add mu1 and mu2 to that list. > > > > Hi, i.MX91 also has mu1 and mu2. so there is no need to remove them here. > > Maybe you have more recent information. The RM available to me doesn't > say anything about messaging unit, neither in memory map nor as a separate > section describing the hardware. Memory area is marked as reserved. > > If there are actually mu1 and mu2 available, what is on the B-side? There > is no Cortex-M33 after all. > Hi Alexander, I rechecked the RM and found that it did remove MU1 and MU2, I will remove these two nodes in the next version. Thanks for your comments! BR, Pengfei Li