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x86_64-pc-linux-gnu) MIME-Version: 1.0 X-GND-Sasl: miquel.raynal@bootlin.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240506_064906_663648_305A5820 X-CRM114-Status: GOOD ( 19.41 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org SGkgQXJzZW5peSwKCmF2a3Jhc25vdkBzYWx1dGVkZXZpY2VzLmNvbSB3cm90ZSBvbiBUdWUsIDE2 IEFwciAyMDI0IDExOjUxOjAwICswMzAwOgoKPiBCb290IFJPTSBjb2RlIG9uIE1lc29uIHJlcXVp cmVzIHRoYXQgc29tZSBwYWdlcyBvbiBOQU5EIG11c3QgYmUgd3JpdHRlbgo+IGluIHNwZWNpYWwg bW9kZTogInNob3J0IiBFQ0MgbW9kZSB3aGVyZSBlYWNoIGJsb2NrIGlzIDM4NCBieXRlcyBhbmQK PiBzY3JhbWJsaW5nIG1vZGUgaXMgb24uCgpPawoKPiBTdWNoIHBhZ2VzIGxvY2F0ZWQgd2l0aCB0 aGUgc3BlY2lmaWVkIGludGVydmFsIHdpdGhpbiBzcGVjaWZpZWQgb2Zmc2V0LgoKSSdtIHNvcnJ5 IEkgZG9uJ3QgZ2V0IHRoYXQgc2VudGVuY2UuCgo+IEJvdGggaW50ZXJ2YWwgYW5kIG9mZnNldCBh cmUgbG9jYXRlZCBpbiB0aGUKPiBkZXZpY2UgdHJlZSBhbmQgdXNlZCBieSBkcml2ZXIgaWYgJ25h bmQtaXMtYm9vdC1tZWRpdW0nIGlzIHNldCBmb3IKPiBOQU5EIGNoaXAuCgpUaGlzIHNlbnRlbmNl IGlzIHByb2JhYmx5IG5vdCBuZWVkZWQuCgo+IAo+IFNpZ25lZC1vZmYtYnk6IEFyc2VuaXkgS3Jh c25vdiA8YXZrcmFzbm92QHNhbHV0ZWRldmljZXMuY29tPgo+IC0tLQo+ICAuLi4vYmluZGluZ3Mv bXRkL2FtbG9naWMsbWVzb24tbmFuZC55YW1sICAgICAgICAgICB8IDE0ICsrKysrKysrKysrKysr Cj4gIDEgZmlsZSBjaGFuZ2VkLCAxNCBpbnNlcnRpb25zKCspCj4gCj4gZGlmZiAtLWdpdCBhL0Rv Y3VtZW50YXRpb24vZGV2aWNldHJlZS9iaW5kaW5ncy9tdGQvYW1sb2dpYyxtZXNvbi1uYW5kLnlh bWwgYi9Eb2N1bWVudGF0aW9uL2RldmljZXRyZWUvYmluZGluZ3MvbXRkL2FtbG9naWMsbWVzb24t bmFuZC55YW1sCj4gaW5kZXggNTdiNjk1N2M4NDE1Li42N2IyZjdjMTI1OWMgMTAwNjQ0Cj4gLS0t IGEvRG9jdW1lbnRhdGlvbi9kZXZpY2V0cmVlL2JpbmRpbmdzL210ZC9hbWxvZ2ljLG1lc29uLW5h bmQueWFtbAo+ICsrKyBiL0RvY3VtZW50YXRpb24vZGV2aWNldHJlZS9iaW5kaW5ncy9tdGQvYW1s b2dpYyxtZXNvbi1uYW5kLnlhbWwKPiBAQCAtNjQsMTEgKzY0LDI1IEBAIHBhdHRlcm5Qcm9wZXJ0 aWVzOgo+ICAgICAgICAgIGl0ZW1zOgo+ICAgICAgICAgICAgbWF4aW11bTogMAo+ICAKPiArICAg ICAgYW1sb2dpYyxib290LXBhZ2VzOgo+ICsgICAgICAgICRyZWY6IC9zY2hlbWFzL3R5cGVzLnlh bWwjL2RlZmluaXRpb25zL3VpbnQzMgo+ICsgICAgICAgIGRlc2NyaXB0aW9uOgo+ICsgICAgICAg ICAgTnVtYmVyIG9mIHBhZ2VzIHN0YXJ0aW5nIGZyb20gMCwgd2hlcmUgc3BlY2lhbCBFQ0MKCmZy b20gKm9mZnNldCogMCBJIGd1ZXNzPwoKPiArICAgICAgICAgIGFsZ29yaXRobSB3aWxsIGJlIHVz ZWQgYnkgdGhlIGRyaXZlci4KCiJ3aGVyZSBhIHNwZWNpYWwgRUNDIGNvbmZpZ3VyYXRpb24gbXVz dCBiZSB1c2VkIGJlY2F1c2UgaXQgaXMgYWNjZXNzZWQKYnkgdGhlIFJPTSBjb2RlIj8gTWF5YmUg eW91IGNhbiBldmVuIGRldGFpbCB3aGF0IGFyZSB0aGVzZSB2YWx1ZXMgaWYKdGhleSBhcmUgZml4 ZWQuCgpZb3Ugc2hvdWxkIHByb2JhYmx5IGluZm9ybSB0aGF0IHNjcmFtYmxpbmcgc2hhbGwgYmUg b24gYXMgd2VsbC4KIAo+ICsKPiArICAgICAgYW1sb2dpYyxib290LXBhZ2Utc3RlcDoKPiArICAg ICAgICAkcmVmOiAvc2NoZW1hcy90eXBlcy55YW1sIy9kZWZpbml0aW9ucy91aW50MzIKPiArICAg ICAgICBkZXNjcmlwdGlvbjoKPiArICAgICAgICAgIEludGVydmFsIGJldHdlZW4gcGFnZXMsIHJl YWQvd3JpdHRlbiBieSB0aGUgZHJpdmVyIHdpdGgKPiArICAgICAgICAgIHNwZWNpYWwgRUNDIGFs Z29yaXRobS4KCkknbSBub3Qgc3VyZSBJIGZ1bGx5IGdldCB0aGUgZGVzY3JpcHRpb24uIFdoYXQg aXMgdGhlIHVuaXQgaGVyZT8gY2FuCnlvdSBkcmF3IGEgc21hbGwgYXNjaWktYXJ0IGRpYWdyYW0/ Cgo+ICsKPiAgICAgIHVuZXZhbHVhdGVkUHJvcGVydGllczogZmFsc2UKPiAgCj4gICAgICBkZXBl bmRlbmNpZXM6Cj4gICAgICAgIG5hbmQtZWNjLXN0cmVuZ3RoOiBbbmFuZC1lY2Mtc3RlcC1zaXpl XQo+ICAgICAgICBuYW5kLWVjYy1zdGVwLXNpemU6IFtuYW5kLWVjYy1zdHJlbmd0aF0KPiArICAg ICAgYW1sb2dpYyxib290LXBhZ2VzOiBbbmFuZC1pcy1ib290LW1lZGl1bSwgImFtbG9naWMsYm9v dC1wYWdlLXN0ZXAiXQo+ICsgICAgICBhbWxvZ2ljLGJvb3QtcGFnZS1zdGVwOiBbbmFuZC1pcy1i b290LW1lZGl1bSwgImFtbG9naWMsYm9vdC1wYWdlcyJdCj4gIAo+ICAKPiAgcmVxdWlyZWQ6CgoK VGhhbmtzLApNaXF1w6hsCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fXwpsaW51eC1hbWxvZ2ljIG1haWxpbmcgbGlzdApsaW51eC1hbWxvZ2ljQGxpc3RzLmlu ZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9s aW51eC1hbWxvZ2ljCg== From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2E50AC10F16 for ; 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x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-GND-Sasl: miquel.raynal@bootlin.com Hi Arseniy, avkrasnov@salutedevices.com wrote on Tue, 16 Apr 2024 11:51:00 +0300: > Boot ROM code on Meson requires that some pages on NAND must be written > in special mode: "short" ECC mode where each block is 384 bytes and > scrambling mode is on. Ok > Such pages located with the specified interval within specified offset. I'm sorry I don't get that sentence. > Both interval and offset are located in the > device tree and used by driver if 'nand-is-boot-medium' is set for > NAND chip. This sentence is probably not needed. >=20 > Signed-off-by: Arseniy Krasnov > --- > .../bindings/mtd/amlogic,meson-nand.yaml | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) >=20 > diff --git a/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yam= l b/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml > index 57b6957c8415..67b2f7c1259c 100644 > --- a/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml > +++ b/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml > @@ -64,11 +64,25 @@ patternProperties: > items: > maximum: 0 > =20 > + amlogic,boot-pages: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: > + Number of pages starting from 0, where special ECC from *offset* 0 I guess? > + algorithm will be used by the driver. "where a special ECC configuration must be used because it is accessed by the ROM code"? Maybe you can even detail what are these values if they are fixed. You should probably inform that scrambling shall be on as well. =20 > + > + amlogic,boot-page-step: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: > + Interval between pages, read/written by the driver with > + special ECC algorithm. I'm not sure I fully get the description. What is the unit here? can you draw a small ascii-art diagram? > + > unevaluatedProperties: false > =20 > dependencies: > nand-ecc-strength: [nand-ecc-step-size] > nand-ecc-step-size: [nand-ecc-strength] > + amlogic,boot-pages: [nand-is-boot-medium, "amlogic,boot-page-step"] > + amlogic,boot-page-step: [nand-is-boot-medium, "amlogic,boot-pages"] > =20 > =20 > required: Thanks, Miqu=C3=A8l