Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) client-ip=2620:137:e000::3:7;
From:   Pankaj Gupta <pankaj.gupta@nxp.com>
To:     shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de,
        clin@suse.com, conor+dt@kernel.org, pierre.gondois@arm.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, V.Sethi@nxp.com
Cc:     Pankaj Gupta <pankaj.gupta@nxp.com>,
        Dong Aisheng <aisheng.dong@nxp.com>
Subject: [PATCH v6 06/11] arm64: dts: imx93-11x11-evk: reserved mem-ranges
Date:   Wed, 27 Sep 2023 23:23:56 +0530
Message-Id: <20230927175401.1962733-7-pankaj.gupta@nxp.com>
In-Reply-To: <20230927175401.1962733-1-pankaj.gupta@nxp.com>
References: <20230927175401.1962733-1-pankaj.gupta@nxp.com>
Content-Transfer-Encoding: 8bit
Content-Type: text/plain
MIME-Version: 1.0
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?zXD2BJU07DU+XmIp/i38v5JBNq/OzWFQuNnp5/xFppFpl8eziSACnRaVMqLP?=
 =?us-ascii?Q?wqcAuPJqxNNUNxkn3oRIe/yJ8wHsG5HxlAFRM8PQdrGf8fKyjpDinI+BZPX2?=
 =?us-ascii?Q?CWHgH997ttbJrMvVsBkL1c6VFVaO75oJFZzald/OcZk9I3If8MUrB+r9ssHu?=
 =?us-ascii?Q?k+55nfyy0wIdm7L8YQolA59lPWU46W/9D3fE4rEQGDyqCzea3NWSl015o/FJ?=
 =?us-ascii?Q?bZRmZ6a+L5/GUDoT2arrekmVJQSMiqB5eUwT/lxh7K9FL8CKZT+pCI4fLY2I?=
 =?us-ascii?Q?tcN1/2/pBNNgCegjMeci/B/UHTyDX+qcxd4mv3QTEei/iyVhDcdOb5G0LUcf?=
 =?us-ascii?Q?Lc+8eA17GVxQujO75Y1aBiHn1BGmFBdkHoT/7O9thYyJ4P988NjAXFwngdhu?=
 =?us-ascii?Q?23C9tf2ltm2xobpNOR4AsfyRh3qg7LwHCsR1AM0tRsjZX23JkzTMHYPMfFSN?=
 =?us-ascii?Q?IWX6ZJnRRamOAEOLvoxsJK74lwgit6a/uJ7Ua/+7x3iNKQSLTZJkm8z8mTgT?=
 =?us-ascii?Q?eMHeAIg+qjEVqAIrkyar3J/C1gkXqdyiQLsLNjj9z+pstgr7SvggIoNNQQwC?=
 =?us-ascii?Q?aEnr4gw6yD7uo/zLtcB5wxI/IduhGt3HtqM7M4vtTc4yLeqbWwRbzR41o8DJ?=
 =?us-ascii?Q?KugMaIh/MiMtmEc2SwLmIirEmwo77S/hu+2IdkzhMEqcb6xHalO3s2NzsBZq?=
 =?us-ascii?Q?iI3dC3rLf1OQAlLSBcvddFOTxslVGXxLjqjsx+5U0RyOs5u92DIUIw5Xoz3t?=
 =?us-ascii?Q?8KVBFpSVd5BKPBD1hTsOL0YTG9iIvk302xOjLPjjh+u0SW9oGEZBOxeWuOIf?=
 =?us-ascii?Q?0Ctlq5d6jGkOQLiWM4wx34j2ZQcRsvDgHrP7WvV5pFoaMg2tTQUeWjTRqbQv?=
 =?us-ascii?Q?VholfJQm0uXH7vYGFVkAJ4H8zvlDhQjnJa97NYjlWc8oIJmn1UMxKGHFSRsY?=
 =?us-ascii?Q?SZ1HWHZl5NB3xLq9O2jI7wWaioUM53rGj/tp1V0GeJIWnhxV5rHA1AfwMKE8?=
 =?us-ascii?Q?LnhL8w05nsbiVICC5rIcUmJcUxT/Hgbsv61P9MVfbVbRwiZfC8Kl9TID4fjf?=
 =?us-ascii?Q?oTdFkzJyPc568NS+3nVJtECm2UiuRdLYl41+JhQOxH19uJrBXHr0Omv/x8Si?=
 =?us-ascii?Q?S10QUxg062Dnl0BUbI2b4oCqM2pvVxLW5mGgcFAzF9hzN7cFOiHacHgW6Iha?=
 =?us-ascii?Q?n2BBTRFjN1fWjPGt7Wm+m8RnvphSvMlgzjmj3QMMyXyscyI5wsGhwOJ97KkW?=
 =?us-ascii?Q?adu1KTSzuANgKaBpf+cUE3HqNbqfKtU8s4aHK95MGZKh1abGffWponRDfUGN?=
 =?us-ascii?Q?5XEinn1bYk0JbgDKwYapzrwSYkG3Urrnn6Ac3yvaUlm2n8qPT8dzUkM5eIEk?=
 =?us-ascii?Q?1AubaBuDO1/uScwp8+FJA5+rU17FJxQmIeHcaGnHoAZnlPYpKq9s83fxUdM9?=
 =?us-ascii?Q?dta1vjX5mC+6+Tqt/PHeSisF9j1x2Qvs6HgdkvGS7D39zCdXzN573iGiS71j?=
 =?us-ascii?Q?mq3KgIY4ZLCqUaB5aPNiVdFDmi9ANmE3zkdXf9e1aBZRSiKqntfNUlhWnxE5?=
 =?us-ascii?Q?tk/+nDi+vfCj+89CBD+/QAOxu1sUW414+ZJHPyNu?=
X-OriginatorOrg: nxp.com
X-MS-Exchange-CrossTenant-Network-Message-Id: d1f9ea1b-2a15-4d66-ee6b-08dbbf550bd7
X-MS-Exchange-CrossTenant-AuthSource: DU2PR04MB8630.eurprd04.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Sep 2023 12:26:59.9747
 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635
X-MS-Exchange-CrossTenant-MailboxType: HOSTED
X-MS-Exchange-CrossTenant-UserPrincipalName: keYilByZmuEbtODY/9+wWVIF3eGehk1CA4B+v4JIZTv1d9Q7I1V+oCMIxBWiwR2Ds55nbuSZ96OIBCAoLGFmUw==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR04MB8181
X-Spam-Status: No, score=0.9 required=5.0 tests=BAYES_00,DATE_IN_FUTURE_03_06,
        DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,
        RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS
        autolearn=no autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
        lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Wed, 27 Sep 2023 05:27:43 -0700 (PDT)

EdgeLock Enclave are has a hardware limitation of restricted access
to the DDR memory range:
- 0x80000000  0x9FFFFFFF

ELE-MU driver requireis 1MB of memory. In this patch, reserving
1MB of ddr memory region from the lower 32-bit range.

Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
index cafd39130eb8..bcb4ae931c64 100644
--- a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
@@ -7,6 +7,10 @@
 
 #include "imx93.dtsi"
 
+&ele_fw2 {
+	memory-region = <&ele_reserved>;
+};
+
 / {
 	model = "NXP i.MX93 11X11 EVK board";
 	compatible = "fsl,imx93-11x11-evk", "fsl,imx93";
@@ -68,6 +72,17 @@ reg_vref_1v8: regulator-adc-vref {
 		regulator-max-microvolt = <1800000>;
 	};
 
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+		ele_reserved: ele-reserved@a4120000 {
+			compatible = "shared-dma-pool";
+			reg = <0 0xa4120000 0 0x100000>;
+			no-map;
+		};
+	};
+
 	reg_usdhc2_vmmc: regulator-usdhc2 {
 		compatible = "regulator-fixed";
 		pinctrl-names = "default";
-- 
2.34.1