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charset="us-ascii" Content-ID: <8BBCC1A4AC4B4D4D94E5E819272DBA94@namprd04.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: wdc.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: PH0PR04MB7158.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: d7f6bc2f-d074-46fb-152d-08da0d7291be X-MS-Exchange-CrossTenant-originalarrivaltime: 24 Mar 2022 08:44:54.7839 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b61c8803-16f3-4c35-9b17-6f65f441df86 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 2JoF94C9tuyvuUPYVjQ5kpj/Jd9O1I0A1EtU4crSi+Cxn+WnBWVdGGfvxYnujJfnLQ657xUs7gIjNY7a10PgJw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN8PR04MB5651 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Tue, Mar 08, 2022 at 02:28:05PM +0100, Niklas Cassel wrote: > From: Niklas Cassel >=20 > According to the K210 Standalone SDK Programming guide: > https://canaan-creative.com/wp-content/uploads/2020/03/kendryte_standalon= e_programming_guide_20190311144158_en.pdf >=20 > Section 15.4.3.3: > SPI0 and SPI1 supports: standard, dual, quad and octal transfers. > SPI3 supports: standard, dual and quad transfers (octal is not supported)= . >=20 > In order to support quad transfers (Quad SPI), SPI3 must have four IO wir= es > connected to the SPI flash. >=20 > Update the device tree to specify the correct bus width. >=20 > Tested on maix bit, maix dock and maixduino, which all have the same > SPI flash (gd25lq128d) connected to SPI3. maix go is untested, but it > would not make sense for this k210 board to be designed differently. >=20 > Signed-off-by: Niklas Cassel > --- Hello Palmer, any chance of this getting picked up? Kind regards, Niklas=