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Mon, 22 May 2023 06:49:02 +0000 Message-ID: Date: Mon, 22 May 2023 08:49:00 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Subject: Re: [PATCH 3/3] arm: dts: imx8mp: Sync with Linux 6.3 To: Adam Ford , Tim Harvey Cc: Fabio Estevam , sbabic@denx.de, u-boot@lists.denx.de, Fabio Estevam , Simon Glass References: <20230427180845.127439-1-festevam@gmail.com> <20230427180845.127439-3-festevam@gmail.com> Content-Language: en-US, da From: Rasmus Villemoes In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-ClientProxiedBy: AM0PR04CA0009.eurprd04.prod.outlook.com (2603:10a6:208:122::22) To DB9PR10MB7100.EURPRD10.PROD.OUTLOOK.COM (2603:10a6:10:45a::14) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DB9PR10MB7100:EE_|AS2PR10MB6973:EE_ X-MS-Office365-Filtering-Correlation-Id: e835b846-6e18-4eae-e835-08db5a90a0ea X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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This patch is >> causing imx8mp-venice-* and imx8mp-evk boards to no longer boot with >> no SPL banner. The specific change that causes breakage is the one >> that encapsulates the spi/uart/flexcan children with >> spba-bus@30800000. > > The SPI, UART, and Flexcan are part of the spba-bus. > > We'll need to add the spba bus to imx8mp-u-boot.dtsi. Since it had no > node name, it'll have to fall under aip3. > > Try this: > > diff --git a/arch/arm/dts/imx8mp-u-boot.dtsi b/arch/arm/dts/imx8mp-u-boot.dtsi > index 18d1728e1d..0e6811b129 100644 > --- a/arch/arm/dts/imx8mp-u-boot.dtsi > +++ b/arch/arm/dts/imx8mp-u-boot.dtsi > @@ -44,6 +44,10 @@ > > &aips3 { > bootph-pre-ram; > + > + spba-bus@30800000 { > + bootph-pre-ram; > + }; > }; > > &iomuxc { This begs the question: Why don't these tags just implicitly propagate to parent nodes? It's a U-Boot specific tool (fdtgrep) that makes use of them, no? So making the rule be "keep this node if it _or any descendant_ has that tag" should be possible. This has probably been answered somewhere before. Rasmus