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Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1lFBMc-00052f-TI; Thu, 25 Feb 2021 07:47:10 +0000 Received: from relay4-d.mail.gandi.net ([217.70.183.196]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1lFBMa-00051y-E2 for linux-mtd@lists.infradead.org; Thu, 25 Feb 2021 07:47:09 +0000 X-Originating-IP: 86.250.253.134 Received: from xps13 (lfbn-tou-1-813-134.w86-250.abo.wanadoo.fr [86.250.253.134]) (Authenticated sender: miquel.raynal@bootlin.com) by relay4-d.mail.gandi.net (Postfix) with ESMTPSA id CF320E0005; Thu, 25 Feb 2021 07:47:03 +0000 (UTC) Date: Thu, 25 Feb 2021 08:47:02 +0100 From: Miquel Raynal To: Manivannan Sadhasivam Subject: Re: [PATCH v2 3/3] mtd: rawnand: qcom: Add support for secure regions in NAND memory Message-ID: <20210225084702.2c753b99@xps13> In-Reply-To: <20210225041129.58576-4-manivannan.sadhasivam@linaro.org> References: <20210225041129.58576-1-manivannan.sadhasivam@linaro.org> <20210225041129.58576-4-manivannan.sadhasivam@linaro.org> Organization: Bootlin X-Mailer: Claws Mail 3.17.4 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210225_024708_573765_83F3586B X-CRM114-Status: GOOD ( 18.81 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, vigneshr@ti.com, richard@nod.at, linux-kernel@vger.kernel.org, boris.brezillon@collabora.com, bjorn.andersson@linaro.org, robh+dt@kernel.org, linux-mtd@lists.infradead.org, linux-arm-msm@vger.kernel.org, Daniele.Palmas@telit.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org SGkgTWFuaXZhbm5hbiwKCk1hbml2YW5uYW4gU2FkaGFzaXZhbSA8bWFuaXZhbm5hbi5zYWRoYXNp dmFtQGxpbmFyby5vcmc+IHdyb3RlIG9uIFRodSwKMjUgRmViIDIwMjEgMDk6NDE6MjkgKzA1MzA6 Cgo+IE9uIGEgdHlwaWNhbCBlbmQgcHJvZHVjdCwgYSB2ZW5kb3IgbWF5IGNob29zZSB0byBzZWN1 cmUgc29tZSByZWdpb25zIGluCj4gdGhlIE5BTkQgbWVtb3J5IHdoaWNoIGFyZSBzdXBwb3NlZCB0 byBzdGF5IGludGFjdCBiZXR3ZWVuIEZXIHVwZ3JhZGVzLgo+IFRoZSBhY2Nlc3MgdG8gdGhvc2Ug cmVnaW9ucyB3aWxsIGJlIGJsb2NrZWQgYnkgYSBzZWN1cmUgZWxlbWVudCBsaWtlCj4gVHJ1c3R6 b25lLiBTbyB0aGUgbm9ybWFsIHdvcmxkIHNvZnR3YXJlIGxpa2UgTGludXgga2VybmVsIHNob3Vs ZCBub3QKPiB0b3VjaCB0aGVzZSByZWdpb25zIChpbmNsdWRpbmcgcmVhZGluZykuCj4gCj4gVGhl IHJlZ2lvbnMgYXJlIGRlY2xhcmVkIHVzaW5nIGEgTkFORCBjaGlwIERUIHByb3BlcnR5LAo+ICJu YW5kLXNlY3VyZS1yZWdpb25zIi4gU28gbGV0J3MgbWFrZSB1c2Ugb2YgdGhpcyBwcm9wZXJ0eSBh bmQgc2tpcAo+IGFjY2VzcyB0byB0aGUgc2VjdXJlIHJlZ2lvbnMgcHJlc2VudCBpbiBhIHN5c3Rl bS4KPiAKPiBTaWduZWQtb2ZmLWJ5OiBNYW5pdmFubmFuIFNhZGhhc2l2YW0gPG1hbml2YW5uYW4u c2FkaGFzaXZhbUBsaW5hcm8ub3JnPgo+IC0tLQoKWy4uLl0KCj4gIAljb25maWdfbmFuZF9wYWdl X3dyaXRlKG5hbmRjKTsKPiBAQCAtMjgzMCw3ICsyODY1LDggQEAgc3RhdGljIGludCBxY29tX25h bmRfaG9zdF9pbml0X2FuZF9yZWdpc3RlcihzdHJ1Y3QgcWNvbV9uYW5kX2NvbnRyb2xsZXIgKm5h bmRjLAo+ICAJc3RydWN0IG5hbmRfY2hpcCAqY2hpcCA9ICZob3N0LT5jaGlwOwo+ICAJc3RydWN0 IG10ZF9pbmZvICptdGQgPSBuYW5kX3RvX210ZChjaGlwKTsKPiAgCXN0cnVjdCBkZXZpY2UgKmRl diA9IG5hbmRjLT5kZXY7Cj4gLQlpbnQgcmV0Owo+ICsJc3RydWN0IHByb3BlcnR5ICpwcm9wOwo+ ICsJaW50IHJldCwgbGVuZ3RoLCBucl9lbGVtOwo+ICAKPiAgCXJldCA9IG9mX3Byb3BlcnR5X3Jl YWRfdTMyKGRuLCAicmVnIiwgJmhvc3QtPmNzKTsKPiAgCWlmIChyZXQpIHsKPiBAQCAtMjg4Niw2 ICsyOTIyLDI0IEBAIHN0YXRpYyBpbnQgcWNvbV9uYW5kX2hvc3RfaW5pdF9hbmRfcmVnaXN0ZXIo c3RydWN0IHFjb21fbmFuZF9jb250cm9sbGVyICpuYW5kYywKPiAgCQl9Cj4gIAl9Cj4gIAo+ICsJ LyoKPiArCSAqIExvb2sgZm9yIHNlY3VyZSByZWdpb25zIGluIHRoZSBOQU5EIGNoaXAuIFRoZXNl IHJlZ2lvbnMgYXJlIHN1cHBvc2VkCj4gKwkgKiB0byBiZSBwcm90ZWN0ZWQgYnkgYSBzZWN1cmUg ZWxlbWVudCBsaWtlIFRydXN0em9uZS4gU28gdGhlIHJlYWQvd3JpdGUKPiArCSAqIGFjY2Vzc2Vz IHRvIHRoZXNlIHJlZ2lvbnMgd2lsbCBiZSBibG9ja2VkIGluIHRoZSBydW50aW1lIGJ5IHRoaXMK PiArCSAqIGRyaXZlci4KPiArCSAqLwo+ICsJcHJvcCA9IG9mX2ZpbmRfcHJvcGVydHkoZG4sICJu YW5kLXNlY3VyZS1yZWdpb25zIiwgJmxlbmd0aCk7CgpJJ20gbm90IHN1cmUgdGhlIG5hbmQtIHBy ZWZpeCBvbiB0aGlzIHByb3BlcnR5IGlzIG5lZWRlZCBoZXJlLCBidXQKd2hhdGV2ZXIuCgo+ICsJ aWYgKHByb3ApIHsKPiArCQlucl9lbGVtID0gbGVuZ3RoIC8gc2l6ZW9mKHUzMik7Cj4gKwkJaG9z dC0+bnJfc2VjX3JlZ2lvbnMgPSBucl9lbGVtIC8gMjsKPiArCj4gKwkJaG9zdC0+c2VjX3JlZ2lv bnMgPSBkZXZtX2tjYWxsb2MoZGV2LCBucl9lbGVtLCBzaXplb2YodTMyKSwgR0ZQX0tFUk5FTCk7 Cj4gKwkJaWYgKCFob3N0LT5zZWNfcmVnaW9ucykKPiArCQkJcmV0dXJuIC1FTk9NRU07Cj4gKwo+ ICsJCW9mX3Byb3BlcnR5X3JlYWRfdTMyX2FycmF5KGRuLCAibmFuZC1zZWN1cmUtcmVnaW9ucyIs IGhvc3QtPnNlY19yZWdpb25zLCBucl9lbGVtKTsKPiArCX0KPiArCgpJIHdvdWxkIG1vdmUgdGhp cyBiZWZvcmUgbmFuZF9zY2FuKCkuCgpJZiB5b3UgZG9uJ3QsIHlvdSBzaG91bGQgYmFpbCBvdXQg d2l0aCBhIG5hbmRfY2xlYW51cCgpIHVwb24gZXJyb3IuCgo+ICAJcmV0ID0gbXRkX2RldmljZV9w YXJzZV9yZWdpc3RlcihtdGQsIHByb2JlcywgTlVMTCwgTlVMTCwgMCk7Cj4gIAlpZiAocmV0KQo+ ICAJCW5hbmRfY2xlYW51cChjaGlwKTsKCgpPdGhlcndpc2UgbGd0bS4KClRoYW5rcywKTWlxdcOo bAoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f CkxpbnV4IE1URCBkaXNjdXNzaW9uIG1haWxpbmcgbGlzdApodHRwOi8vbGlzdHMuaW5mcmFkZWFk Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LW10ZC8K