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Miller" , "devicetree@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH 2/2] arm64: dts: imx8mm: Add Crypto CAAM support Thread-Topic: [PATCH 2/2] arm64: dts: imx8mm: Add Crypto CAAM support Thread-Index: AQHVp9DMEHInO4wSqU+tSt6Rx6I4SQ== Date: Mon, 9 Dec 2019 16:23:45 +0000 Message-ID: References: <20191130225153.30111-1-aford173@gmail.com> <20191130225153.30111-2-aford173@gmail.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=horia.geanta@nxp.com; x-originating-ip: [212.146.100.6] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 6346c512-2a42-49ca-46eb-08d77cc429be x-ms-traffictypediagnostic: DB7SPR01MB0012:|DB7SPR01MB0012: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:5797; x-forefront-prvs: 02462830BE x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(4636009)(39860400002)(136003)(396003)(346002)(366004)(376002)(189003)(199004)(9686003)(7416002)(55016002)(52536014)(71190400001)(64756008)(54906003)(110136005)(66556008)(71200400001)(229853002)(66446008)(305945005)(33656002)(76116006)(91956017)(66946007)(66476007)(478600001)(316002)(5660300002)(6506007)(7696005)(86362001)(8936002)(44832011)(186003)(4326008)(4744005)(26005)(8676002)(53546011)(2906002)(81166006)(81156014)(32563001);DIR:OUT;SFP:1101;SCL:1;SRVR:DB7SPR01MB0012;H:VI1PR0402MB3485.eurprd04.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;MX:1;A:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 3v7Mg2eBxrwqFCr8SLr6v+kro3ylsTGTgAYquN58+Up88RowdPvyCQWCRlHaeWO1FXtCay78bpvUOfPn2dBF/12vr1y1aIhp5HkAA+8BmQKJ0Ylizy8QxafbxPsDbr7lkK1UnO6uBNacdAVMR0qUH6nJArRZRYcjGI0i9YbJ1JzscomZf56u2AorRuLiYYeg3FqAo+cmKJeRtszmkXSlj7IoFjt70+JgJiMhrgKer2n/kPwo3UKWsEutniYMqcW/jMBqqRkOMmfXGokrKfeVezfizK3OVRyn4vENE+dpeuWcgWYAE2EaZYCiASr7GrayPgx6zoB447s9BVXT0KVSuIsg3C6auXG2XXJ5vbYULOEOxurIENCU8GeZ8ja+p6VzADmOVukDR6OlRYyuR8JNMK7q/MySiMBvzApGnRzxTEnJD/zwjmsQ6TMqDF147pndnoTETaKN+8PUHUsmK2hTltp6qGiRh75Bc4dFunTTY5I= Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 6346c512-2a42-49ca-46eb-08d77cc429be X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Dec 2019 16:23:45.0475 (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: +XW79rgrmm0mt1k7JDXpoBMn5wE9bz37Vp7XmRv7vRBV44UXnXANL+BZPeyPskOmbm0d4H67w6okZ8Y7WzKK/w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB7SPR01MB0012 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 12/1/2019 12:52 AM, Adam Ford wrote:=0A= > The i.MX8M Mini supports the same crypto engine as what is in=0A= > the i.MX8MQ, but it is not currently present in the device tree,=0A= > because it may be resricted by security features.=0A= > =0A= What exactly are you referring to?=0A= =0A= > This patch places in into the device tree and marks it as disabled,=0A= > but anyone not restricting the CAAM with secure mode functions=0A= > can mark it as enabled.=0A= > =0A= Even if - due to export control regulations - CAAM is "trimmed down",=0A= it loses only the encryption capabilities (hashing etc. still working).=0A= =0A= Again, please clarify what you mean by "secure mode functions",=0A= "security features" etc.=0A= =0A= Horia=0A=