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Fri, 2 Oct 2026 10:04:49 +0200 Received: from MUCSE815.infineon.com (172.23.29.41) by MUCSE813.infineon.com (172.23.29.39) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.49; Fri, 2 Oct 2026 10:04:48 +0200 Received: from MUCSE815.infineon.com ([fe80::ed10:a720:3031:ca14]) by MUCSE815.infineon.com ([fe80::ed10:a720:3031:ca14%12]) with mapi id 15.02.2562.049; Fri, 2 Oct 2026 10:04:48 +0200 From: To: , CC: , Subject: RE: [PATCH v2] mtd: spi-nor-ids: gd55lb02gf: add SPI_NOR_DUAL_READ Thread-Topic: [PATCH v2] mtd: spi-nor-ids: gd55lb02gf: add SPI_NOR_DUAL_READ Thread-Index: AQHdUkPlKj63W9gYhkWJIvtlWYM1CLbp5Gcg Date: Fri, 2 Oct 2026 08:04:48 +0000 Message-ID: <37e9f670f37a48cc8c50fcafc6a9dd24@infineon.com> References: <20261002075854.1828080-1-vjardin@free.fr> In-Reply-To: <20261002075854.1828080-1-vjardin@free.fr> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.161.6.196] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailman-Approved-At: Fri, 02 Oct 2026 12:26:15 +0000 X-BeenThere: u-boot@lists.u-boot-project.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.u-boot-project.org > The GD55LB02GF supports Dual Output Fast Read and Dual IO Fast Read > according to its datasheet, but its entry only declares the single > and quad reads. >=20 > From the datasheet below, see: > - section 4.1 "SPI Mode": Dual SPI cmd are 3Bh, 3Ch, BBh and BCh > - section 8.16 "Dual Output Fast Read (3Bh/3Ch)" > - section 8.18 "Dual I/O Fast Read (BBh/BCh)" >=20 > Link: https://download.gigadevice.com/Datasheet/DS-01015-GD55LB02GF-Rev1.= 3.pdf > Signed-off-by: Vincent Jardin >=20 Reviewed-by: Takahiro Kuwano Thanks!