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Wed, 12 Jul 2023 12:13:17 +0000 From: Pankaj Gupta To: shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, clin@suse.com, conor+dt@kernel.org, pierre.gondois@arm.com, ping.bai@nxp.com, xiaoning.wang@nxp.com, wei.fang@nxp.com, peng.fan@nxp.com, haibo.chen@nxp.com, festevam@gmail.com, linux-imx@nxp.com, davem@davemloft.net, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, gaurav.jain@nxp.com, alexander.stein@ew.tq-group.com, sahil.malhotra@nxp.com, aisheng.dong@nxp.com, V.Sethi@nxp.com Cc: Pankaj Gupta Subject: [PATCH v4 3/7] arm64: dts: imx8ulp-evk: reserved mem-ranges to constrain ele_fw dma-range Date: Wed, 12 Jul 2023 17:42:15 +0530 Message-Id: <20230712121219.2654234-4-pankaj.gupta@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230712121219.2654234-1-pankaj.gupta@nxp.com> References: <20230712121219.2654234-1-pankaj.gupta@nxp.com> X-ClientProxiedBy: SGXP274CA0024.SGPP274.PROD.OUTLOOK.COM (2603:1096:4:b8::36) To PAXPR04MB8638.eurprd04.prod.outlook.com (2603:10a6:102:21d::14) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PAXPR04MB8638:EE_|GVXPR04MB9877:EE_ X-MS-Office365-Filtering-Correlation-Id: d1287d6b-5152-4ba1-a2c1-08db82d15fe4 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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In this patch the we are reserving 1MB of ddr memory region from the lower 32-bit range. Signed-off-by: Dong Aisheng Signed-off-by: Pankaj Gupta --- arch/arm64/boot/dts/freescale/imx8ulp-evk.dts | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts index f1c6d933a17c..e11b56722348 100644 --- a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts @@ -19,6 +19,17 @@ memory@80000000 { device_type = "memory"; reg = <0x0 0x80000000 0 0x80000000>; }; + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + ele_reserved: ele-reserved@90000000 { + compatible = "shared-dma-pool"; + reg = <0 0x90000000 0 0x100000>; + no-map; + }; + }; clock_ext_rmii: clock-ext-rmii { compatible = "fixed-clock"; @@ -53,6 +64,10 @@ &usdhc0 { status = "okay"; }; +&ele_fw { + memory-region = <&ele_reserved>; +}; + &fec { pinctrl-names = "default", "sleep"; pinctrl-0 = <&pinctrl_enet>;