From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Bean Huo (beanhuo)" Subject: RE: [PATCH 4/5] mtd: nand: add support for Micron on-die ECC Date: Wed, 22 Mar 2017 14:39:59 +0000 Message-ID: <0dccc0abcf234e98be6d340027cf1a30@SIWEX5A.sing.micron.com> References: <538805ebf8e64015a8b833de755652b3@SIWEX5A.sing.micron.com> <8a171dacd20c45bd8285ecc5dbe8854a@SIWEX5A.sing.micron.com> <20170322144507.4d80d2cc@bbrezillon> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20170322144507.4d80d2cc@bbrezillon> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-mtd" Errors-To: linux-mtd-bounces+gldm-linux-mtd-36=gmane.org@lists.infradead.org To: Boris Brezillon Cc: Thomas Petazzoni , "devicetree@vger.kernel.org" , "pawel.moll@arm.com" , Campbell , "richard@nod.at" , Mark Rutland , "marek.vasut@gmail.com" , Rob Herring , "linux-mtd@lists.infradead.org" , "galak@codeaurora.org" , Cyrille Pitchen , "computersforpeace@gmail.com" List-Id: devicetree@vger.kernel.org IEhpIEJvcmlzDQoNCj5IaSBCZWFuLA0KPg0KPk9uIFdlZCwgMjIgTWFyIDIwMTcgMTM6MjA6MDQg KzAwMDANCj4iQmVhbiBIdW8gKGJlYW5odW8pIiA8YmVhbmh1b0BtaWNyb24uY29tPiB3cm90ZToN Cj4NCj4+ID4rbWljcm9uX25hbmRfcmVhZF9wYWdlX29uX2RpZV9lY2Moc3RydWN0IG10ZF9pbmZv ICptdGQsIHN0cnVjdA0KPj4gPituYW5kX2NoaXANCj4+ID4qY2hpcCwNCj4+ID4rwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCB1aW50OF90DQo+ PiA+KypidWYsIGludCBvb2JfcmVxdWlyZWQsDQo+PiA+K8KgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgaW50IHBhZ2UpIHsNCj4+ID4rwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgIGludCBzdGF0dXM7DQo+PiA+K8KgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoCBpbnQgbWF4X2JpdGZsaXBzID0gMDsNCj4+ID4rDQo+PiA+K8KgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoCBtaWNyb25fbmFuZF9vbl9kaWVfZWNjX3NldHVwKGNoaXAsIHRydWUpOw0KPj4gPisN Cj4+ID4rwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIGNoaXAtPmNtZGZ1bmMobXRkLCBOQU5EX0NN RF9SRUFEMCwgMHgwMCwgcGFnZSk7DQo+PiA+K8KgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCBjaGlw LT5jbWRmdW5jKG10ZCwgTkFORF9DTURfU1RBVFVTLCAtMSwgLTEpOw0KPj4gPivCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqAgc3RhdHVzID0gY2hpcC0+cmVhZF9ieXRlKG10ZCk7DQo+PiA+K8KgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoCBpZiAoc3RhdHVzICYgTkFORF9TVEFUVVNfRkFJTCkNCj4+ID4r wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCBtdGQt PmVjY19zdGF0cy5mYWlsZWQrKzsNCj4+ID4rwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIC8qDQo+ PiA+K8KgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCAqIFRoZSBpbnRlcm5hbCBFQ0MgZG9lc24ndCB0 ZWxsIHVzIHRoZSBudW1iZXIgb2YNCj4+ID4rYml0ZmxpcHMNCj4+ID4rwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgICogdGhhdCBoYXZlIGJlZW4gY29ycmVjdGVkLCBidXQgdGVsbHMgdXMgaWYgaXQN Cj4+ID4rcmVjb21tZW5kcyB0bw0KPj4gPivCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgKiByZXdy aXRlIHRoZSBibG9jay4gSWYgaXQncyB0aGUgY2FzZSwgdGhlbiB3ZSBwcmV0ZW5kDQo+PiA+K3dl IGhhZA0KPj4gPivCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgKiBhIG51bWJlciBvZiBiaXRmbGlw cyBlcXVhbCB0byB0aGUgRUNDIHN0cmVuZ3RoLCB3aGljaA0KPj4gPit3aWxsDQo+PiA+K8KgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoCAqIGhpbnQgdGhlIE5BTkQgY29yZSB0byByZXdyaXRlIHRoZSBi bG9jay4NCj4+ID4rwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgICovDQo+PiA+K8KgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoCBlbHNlIGlmIChzdGF0dXMgJiBOQU5EX1NUQVRVU19XUklURV9SRUNPTU1F TkRFRCkNCj4+ID4rwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoCBtYXhfYml0ZmxpcHMgPSBjaGlwLT5lY2Muc3RyZW5ndGg7DQo+PiA+Kw0KPj4gPivC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgY2hpcC0+Y21kZnVuYyhtdGQsIE5BTkRfQ01EX1JFQUQw LCAtMSwgLTEpOw0KPj4gPisNCj4+ID4rwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIG5hbmRfcmVh ZF9wYWdlX3JhdyhtdGQsIGNoaXAsIGJ1Ziwgb29iX3JlcXVpcmVkLCBwYWdlKTsNCj4+ID4rDQo+ PiA+K8KgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCBtaWNyb25fbmFuZF9vbl9kaWVfZWNjX3NldHVw KGNoaXAsIGZhbHNlKTsNCj4+ID4rDQo+PiA+K8KgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCByZXR1 cm4gbWF4X2JpdGZsaXBzOw0KPj4gPit9DQo+Pg0KPj4NCj4+IEhpLA0KPj4gTGV0IG1lIGdpdmUg eW91IHNvbWUgaW5mb3JtYXRpb24sIGhvcGVmdWxseSB5b3UgY2FuIGRvIHNvbWUgbW9kaWZpY2F0 aW9uDQo+YmFzZWQgb24gYWJvdmUgY29kZXMuDQo+Pg0KPj4gSSBub3RpY2VkIHRoYXQgdGhpcyBw YXRjaGVzIGFyZSBiYXNlZCBvbiBNVDI5RjFHMDhBQkFEQVdQIFNMQyBOQU5ELCBpdCBpcw0KPm91 ciA2MHMgMzRubSBTTEMgTkFORC4NCj4+IFNvIGZhciwgd2UgaGF2ZSAyIHNlcmllcyBTTEMgTkFO RCB3aXRoIGltcGxlbWVudGF0aW9ucyBvZiBvbiBkaWUgRUNDLg0KPj4gMS4gTTc5QSBmb3IgYWxs IDI1bm0gKDcwc2VyaWVzKSBTTEMgTkFORCB3aXRoIG9uLWRpZSBFQ0MgKE03OEEsIE03OUEsDQo+ PiBhbmQgZnV0dXJlIGRlc2lnbiBNNzBBKSAyLiBNNjBBIGZvciBhbGwgMzRubSAoNjBzZXJpZXMp IFNMQyBOQU5EIHdpdGgNCj4+IG9uLWRpZSBFQ0MNCj4NCj5EbyB5b3UgaGF2ZSBhbiBlYXN5IHdh eSB0byBkaWZmZXJlbnRpYXRlIHRob3NlIDIgZ2VuZXJhdGlvbnMgb2YgY2hpcCwgb3Igc2hvdWxk DQo+d2UgYmFzZSBvdXIgZGV0ZWN0aW9uIG9uIHRoZSBtb2RlbCBuYW1lIHByb3ZpZGVkIGluIHRo ZSBPTkZJIHBhcmFtZXRlciBwYWdlPw0KPg0KT2YgY291cnNlLCB5b3UgY2FuIHVzZSBtb2RlbCBu YW1lLCBidXQgSSB0aGluayB3ZSB3aWxsIGtlZXAgYSBiaWcgdGFibGUgdG8gaW5jbHVkZSBldmVy eSBOQU5EIGluZm9ybWF0aW9uLg0KQWxzbywgaXQgZG9lc24ndCBsb29rIG5pY2UgYW5kIGFsd2F5 cyBjaGFuZ2VzLg0KDQpUaGUgYmV0dGVyIHNvbHV0aW9uIGlzOg0KDQpGb3IgdGhlIE1pY3JvbiBT TEMgTkFORCB3aXRoIG9uIERpZSBFQ0MsIHBsZWFzZSBub3RlIG9ubHkgZm9yIHRoZSAiU0xDIE5B TkQgd2l0aCBvbiBEaWUgRUNDIiwNCllvdSBjYW4gYWx3YXlzIGRpZmZlcmVudGlhdGUgdGhlc2Ug dHdvIGdlbmVyYXRpb24gTkFORCBieSBPTkZJIHRhYmxlIGJ5dGUgMTEyICJOdW1iZXIgb2YgYml0 cw0KRUNDIGNvcnJlY3RhYmlsaXR5ICIsIGlmIGl0cyB2YWx1ZSBpcyA0LCBpdCBpcyA2MHM7IGlm IGl0J3MgOCwgaXQgaXMgNzBzLiB0aGlzIGlzIGEgcGVybWFuZW50IG1ldGhvZCBmb3IgYm90aA0K NjBzIGFuZCA3MHMgIlNMQyBOQU5EIHdpdGggb24gRGllIEVDQyIuDQoNCj4+DQo+PiBOQU5EX1NU QVRVU19GQUlMOg0KPj4gRm9yIHRoZSBib3RoIG9mIHNlcmllcyBTTEMgTkFORCB3aXRoIG9uLWRp ZSBFQ0MsIFNSIGJpdCAwDQo+PiAoTkFORF9TVEFUVVNfRkFJTCkgaW5kaWNhdGVzIGFuIHVuY29y cmVjdGFibGUgcmVhZCBmYWlsLCBkYXRhIGlzIGxvc3QsDQo+PiBubyByZWNvdmVyeSBwb3NzaWJs ZSwgdW5sZXNzIHdlIGhhdmUgc29mdHdhcmUgYWRkaXRpb25hbCBwcm90ZWN0aW9uLCB0aGUgYmxv Y2sNCj5pcyBub3QgbmVjZXNzYXJpbHkgYmFkIGJ1dCB0aGUgZGF0YSBpcyBsb3N0Lg0KPj4NCj4+ IE5BTkRfU1RBVFVTX1dSSVRFX1JFQ09NTUVOREVEOg0KPj4NCj4+IEZvciB0aGUgTkFORF9TVEFU VVNfV1JJVEVfUkVDT01NRU5ERUQsIGl0IG9ubHkgd29ya3Mgb24gNjBzIE5BTkQsIGl0DQo+PiBp cyA0IGJpdCBFQ0MsIHRoZSBzdGF0dXMgcmVnaXN0ZXIgb25seSBpbmRpY2F0ZXMgaWYgdGhlcmUg aXMgMCBvciAxLTQgY29ycmVjdGFibGUNCj5lcnJvciBiaXRzLiBXZSBkb24ndCB3YW50IHRvIHRy aWdnZXIgcmVmcmVzaCBpZiBvbmx5IDEgb3IgMiBiaXRzIGZhaWwuDQo+PiB0aGUgYmFzZSByZWZy ZXNoIGlzIHRoYXQgaWYgdGhlcmUgMyBvciA0IGJpdGZsaXBzLiBCdXQgdW5mb3J0dW5hdGVseSB3 ZSBjYW4ndCBnZXQNCj5mYWlsZWQgYml0IGNvdW50IHRyb3VnaCByZWFkIHN0YXR1cyByZWdpc3Rl ci4NCj4+IFNXIHdvcmthcm91bmQgcHJvcG9zYWw6DQo+PiAxLiBJZiBTUiBiaXQgMyBpcyBzZXQg dG8gMSBpdCBtZWFucyAxfjQgYml0ZmxpcHMgYW5kIGNvcnJlY3RhYmxlLg0KPj4gMi4gUmVhZCBv dXQgdGhlIHBhZ2Ugd2l0aCBFQ0MgT04NCj4+IDMuIFJlYWQgb3V0IHRoZSBwYWdlIHdpdGggRUND IE9GRg0KPj4gNC4gQ29tcGFyZSB0aGUgZGF0YQ0KPj4gNS4gQ291bnQgdGhlIG51bWJlciBvZiBi aXRmbGlwcyBmb3IgdGhlIHNlY3RvcnMgKHRoZXJlIGFyZSA0IEVDQw0KPj4gc2VjdG9ycykgNi4g aWYgMyBvciBtb3JlIGZhaWwgYml0cywgdHJpZ2dlciBmcmVzaC4NCj4+IEkga25vdyB0aGlzIGlz IG5vdCBnb29kIHNvbHV0aW9uLCBidXQgaWYgYXMgbG9uZyBhcw0KPj4gTkFORF9TVEFUVVNfV1JJ VEVfUkVDT01NRU5ERUQgaXMgc2V0LCBhbmQgdHJpZ2dlciByZWZyZXNoLCB0aGlzIHdpbGwNCj5k ZWZpbml0ZWx5IGluY3JlYXNlIE5BTkQgUEUgY3ljbGUuDQo+DQo+V2UgZGlzY3Vzc2VkIHRoYXQg d2l0aCBUaG9tYXMgd2hlbiBkZXZlbG9waW5nIHRoZSBzb2x1dGlvbi4gSSBzdWdnZXN0ZWQgdG8g Zmlyc3QNCj5nbyBmb3IgYSBzaW1wbGUgc29sdXRpb24gZXZlbiBpZiBpdCBpbXBsaWVzIHVubmVl ZGVkIFBFIGN5Y2xlcyB3aGVuIGJpdGZsaXBzIGFyZQ0KPmRldGVjdGVkLCBidXQgbWF5YmUgSSB3 YXMgd3JvbmcuIEluIGFueSBjYXNlLCBpdCBzaG91bGRuJ3QgYmUgdG8gaGFyZCB0byBkbyB3aGF0 DQo+eW91IHN1Z2dlc3QuDQo+DQoNCk9rLCBidXQgSSByZWNvbW1lbmQgdGhhdCA3MHMgc2hvdWxk IGJlIHRoZSBmaXJzdCBjaG9pY2Ugb24gdGhpcyBzaW5nbGUgc29sdXRpb24sDQppdCBkb2Vzbid0 IG5lZWQgdG8gcmVhZCB0d2ljZSB0byBkZXRlY3QgaXRzIGJpdGZsaXBzIGNvdW50LiANCg0KPj4N Cj4+IEZvciB0aGUgNzBzLCBpdCBpcyA4IGJpdHMgb24tZGllIEVDQywgdGhlIHN0YXR1cyByZWdp c3RlciBjYW4gcmVwb3J0IDctOCBiaXRmbGlwcw0KPihyZWZyZXNoIHJlY29tbWVuZGVkKSwgNC02 IGJpdGZsaXBzIGFuZCAxLTMgYml0ZmxpcHMuDQo+PiBTbyB3ZSBjYW4gdHJpZ2dlciByZWZyZXNo IGFjY29yZGluZyB0byBpdHMgYml0ZmxpcHMgc3RhdHVzLg0KPg0KPlRoYXQncyBnb29kIG5ld3Mh DQo+DQo+VGhhbmtzIGZvciB5b3VyIGZlZWRiYWNrLg0KPg0KPkJvcmlzDQoNCg0KLy9CZWFuaHVv DQpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18K TGludXggTVREIGRpc2N1c3Npb24gbWFpbGluZyBsaXN0Cmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQu b3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtbXRkLwo=