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Tue, 4 Jul 2023 13:41:08 +0000 (UTC) Date: Tue, 4 Jul 2023 15:41:06 +0200 From: Miquel Raynal To: Arseniy Krasnov Cc: Liang Yang , Richard Weinberger , Vignesh Raghavendra , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , , , , , , , Subject: Re: [RFC PATCH v1 2/2] mtd: rawnand: meson: support for 512B ECC step size Message-ID: <20230704154106.5c5aafd8@xps-13> In-Reply-To: References: <20230628092937.538683-1-AVKrasnov@sberdevices.ru> <20230628092937.538683-3-AVKrasnov@sberdevices.ru> <20230704103617.4affae8a@xps-13> <9e6eaa87-887c-f955-113a-43860c8ea00c@sberdevices.ru> <20230704114110.25ca9de4@xps-13> <20230704115628.55320428@xps-13> Organization: Bootlin X-Mailer: Claws Mail 4.0.0 (GTK+ 3.24.33; 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-20230704_064117_065770_506A6C42 X-CRM114-Status: GOOD ( 21.04 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org SGkgQXJzZW5peSwKCj4gPj4+PiBZZXMsIHRoaXMgY29kZSBsb29rcyBzdHJhbmdlLiAnbnNlY3Rv cnMnIGlzIHVzZWQgdG8gY2FsY3VsYXRlIHNwYWNlIGluIE9PQgo+ID4+Pj4gdGhhdCBjb3VsZCBi ZSB1c2VkIGJ5IEVDQyBlbmdpbmUgKHRoaXMgdmFsdWUgd2lsbCBiZSBwYXNzZWQgYXMgJ29vYmF2 YWlsJwo+ID4+Pj4gdG8gJ25hbmRfZWNjX2Nob29zZV9jb25mKCknKS4gSWRlYSBvZiA1MTIgaXMg dG8gY29uc2lkZXIgIndvcnN0IiBjYXNlCj4gPj4+PiBmb3IgRUNDLCBlLmcuIG1pbmltYWwgbnVt YmVyIG9mIGJ5dGVzIGZvciBFQ0MgZW5naW5lIChhbmQgYXQgdGhlIHNhbWUgdGltZQo+ID4+Pj4g bWF4aW11bSBudW1iZXIgb2YgZnJlZSBieXRlcykuIEZvciBNZXNvbiwgaWYgRUNDIHN0ZXAgc2l6 ZSBpcyA1MTIsIHRoZW4gd2UKPiA+Pj4+IGhhdmUgNCB4IDIgZnJlZSBieXRlcyBpbiBPT0IgKGlm IHN0ZXAgc2l6ZSBpZiAxMDI0IHRoZW4gd2UgaGF2ZSAyIHggMiBmcmVlCj4gPj4+PiBieXRlcyBp biBPT0IpLgo+ID4+Pj4KPiA+Pj4+IEkgdGhpbmsgdGhpcyBjb2RlIGNvdWxkIGJlIHJld29ya2Vk IGluIHRoZSBmb2xsb3dpbmcgd2F5Ogo+ID4+Pj4KPiA+Pj4+IGlmIEVDQyBzdGVwIHNpemUgaXMg YWxyZWFkeSBrbm93biBoZXJlIChmcm9tIERUUyksIGNhbGN1bGF0ZSAnbnNlY3RvcnMnIHVzaW5n Cj4gPj4+PiBnaXZlbiB2YWx1ZSAoZGl2IGJ5IDUxMiBmb3IgZXhhbXBsZSkuIE90aGVyd2lzZSBj YWxjdWxhdGUgJ25zZWN0b3JzJyBpbiB0aGUKPiA+Pj4+IGN1cnJlbnQgbWFubmVyOiAgICAKPiA+ Pj4KPiA+Pj4gSXQgd2lsbCBhbHdheXMgYmUga25vd24gd2hlbiB0aGVzZSBmdW5jdGlvbiBhcmUg cnVuLiBUaGVyZSBpcyBubwo+ID4+PiBndWVzc2luZyBoZXJlLiAgICAKPiA+Pgo+ID4+IEhtIEkg Y2hlY2tlZCwgdGhhdCBidXQgaWYgc3RlcCBzaXplIGlzIG5vdCBzZXQgaW4gRFRTLCBoZXJlIGl0 IHdpbGwgYmUgMCwgCj4gPj4gdGhlbiBpdCB3aWxsIGJlIHNlbGVjdGVkIGluICduYW5kX2VjY19j aG9vc2VfY29uZigpJyBhY2NvcmRpbmcgcHJvdmlkZWQgJ2VjY19jYXBzJwo+ID4+IGFuZCAnb29i YXZhaWwnLi4uCj4gPj4KPiA+PiBBbnl3YXksIEknbGwgZG8gdGhlIGZvbGxvd2luZyB0aGluZzoK PiA+Pgo+ID4+IGludCBuc2VjdG9yczsKPiA+Pgo+ID4+IGlmIChuYW5kLT5lY2Muc2l6ZSkKPiA+ PiAgICAgbnNlY3RvcnMgPSBtdGQtPndyaXRlc2l6ZSAvIG5hbmQtPmVjYy5zaXplOyA8LS0tIHRo aXMgaXMgZm9yIDUxMiBFQ0MgIAo+ID4gCj4gPiBZb3Ugc2hvdWxkIHNldCBuYW5kLT5lY2Muc2l6 ZSBpbiAtPmF0dGFjaF9jaGlwKCkgaW5zdGVhZC4gIAo+IAo+IFNvcnJ5LCBkaWRuJ3QgZ2V0IGl0 Li4uIGlmIEVDQyBzdGVwIHNpemUgaXMgc2V0IGluIERUUywgdGhlbiBoZXJlLCBpbiBjaGlwIGF0 dGFjaAo+IGNhbGxiYWNrIGl0IHdpbGwgYmUgYWxyZWFkeSBrbm93biAoRFQgcGFydCB3YXMgcHJv Y2Vzc2VkIGluICdyYXduYW5kX2R0X2luaXQoKScpLgo+IElmIEVDQyBzdGVwIHNpemUgaXMgdW5r bm93biAoZS5nLiAwIGhlcmUpLCAnbmFuZF9lY2NfY2hvb3NlX2NvbmYoKScgd2lsbCBzZXQgaXQK PiBhY2NvcmRpbmcgcHJvdmlkZWQgZWNjIGNhcHMuIFdoYXQgZG8gWW91IG1lYW4gZm9yICJZb3Ug c2hvdWxkIHNldCAuLi4iID8KClRoZSBjdXJyZW50IGFwcHJvYWNoIGlzIHdyb25nLCBpdCBkZWNp ZGVzIHRoZSBudW1iZXIgb2YgRUNDIGNodW5rcwooY2FsbGVkIG5zZWN0b3JzIGluIHRoZSBkcml2 ZXIpIGFuZCB0aGVuIGFza3MgdGhlIGNvcmUgdG8gZGVjaWRlIHRoZQpudW1iZXIgb2YgRUNDIGNo dW5rcyB0byB1c2UuCgpKdXN0IHByb3ZpZGUgbXRkLT5vb2JzaXplIC0gMiBhcyBsYXN0IHBhcmFt ZXRlciBhbmQgdGhlbiByZWx5IG9uIHRoZQpjb3JlJ3MgbG9naWMgdG8gZmluZCB0aGUgcmlnaHQg RUNDIHN0ZXAtc2l6ZS9zdHJlbmd0aD8KClRoZXJlIGlzIG5vIHBvaW50IGluIHJlcXVlc3Rpbmcg YSBwYXJ0aWN1bGFyIHN0ZXAgc2l6ZSB3aXRob3V0IGEKc3BlY2lmaWMgc3RyZW5ndGgsIG9yPyBT byBJIGJlbGlldmUgeW91IHNob3VsZCBwcm92aWRlIGJvdGggaW4gdGhlIERUUwppZiB5b3Ugd2Fu dCBwYXJ0aWN1bGFyIHBhcmFtZXRlcnMgdG8gYmUgYXBwbGllZCwgb3RoZXJ3aXNlIHlvdSBjYW4g bGV0CnRoZSBjb3JlIGRlY2lkZSB3aGF0IGlzIGJlc3QuCgpUaGFua3MsCk1pcXXDqGwKCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJu ZWwgbWFpbGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRw Oi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK