| Message ID | 20241224-winbond-6-11-rc1-quad-support-v2-27-ad218dbc406f@bootlin.com |
|---|---|
| State | New |
| Headers | show
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From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Tue, 24 Dec 2024 18:06:12 +0100
Subject: [PATCH v2 27/27] mtd: spinand: winbond: Add support for DTR
operations
MIME-Version: 1.0
Message-Id:
<20241224-winbond-6-11-rc1-quad-support-v2-27-ad218dbc406f@bootlin.com>
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<20241224-winbond-6-11-rc1-quad-support-v2-0-ad218dbc406f@bootlin.com>
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<20241224-winbond-6-11-rc1-quad-support-v2-0-ad218dbc406f@bootlin.com>
To: Mark Brown <broonie@kernel.org>, Sanjay R Mehta <sanju.mehta@amd.com>,
Serge Semin <fancer.lancer@gmail.com>, Han Xu <han.xu@nxp.com>,
Conor Dooley <conor.dooley@microchip.com>,
Daire McNamara <daire.mcnamara@microchip.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>,
Haibo Chen <haibo.chen@nxp.com>, Yogesh Gaur <yogeshgaur.83@gmail.com>,
Heiko Stuebner <heiko@sntech.de>, Michal Simek <michal.simek@amd.com>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>, Vignesh Raghavendra <vigneshr@ti.com>,
Jacky Huang <ychuang3@nuvoton.com>, Shan-Chun Hung <schung@nuvoton.com>,
Chin-Ting Kuo <chin-ting_kuo@aspeedtech.com>, =?utf-8?q?C=C3=A9dric_Le_Goa?=
=?utf-8?q?ter?= <clg@kaod.org>, Joel Stanley <joel@jms.id.au>,
Andrew Jeffery <andrew@codeconstruct.com.au>,
Avi Fishman <avifishman70@gmail.com>, Tomer Maimon <tmaimon77@gmail.com>,
Tali Perry <tali.perry1@gmail.com>, Patrick Venture <venture@google.com>,
Nancy Yuen <yuenn@google.com>, Benjamin Fair <benjaminfair@google.com>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Raju Rangoju <Raju.Rangoju@amd.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
Steam Lin <stlin2@winbond.com>, linux-spi@vger.kernel.org,
linux-kernel@vger.kernel.org, imx@lists.linux.dev,
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Content preview: W25N01JW and W25N02JW support many DTR read modes in
single,
dual and quad configurations. DTR modes however cannot be used at 166MHz,
as the bus frequency in this case must be lowered to 80MHz. Signed-off-by:
Miquel Raynal <miquel.raynal@bootlin.com> ---
drivers/mtd/nand/spi/winbond.c
| 5 +++++ 1 file changed, 5 insertions(+)
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|
| Series |
spi-nand/spi-mem DTR support
|
expand
|
diff --git a/drivers/mtd/nand/spi/winbond.c b/drivers/mtd/nand/spi/winbond.c index 51972ba0f193c7b27ece0296c1590ddfed0ac813..8394a1b1fb0c125ddb614269069d107463e905a3 100644 --- a/drivers/mtd/nand/spi/winbond.c +++ b/drivers/mtd/nand/spi/winbond.c @@ -24,10 +24,15 @@ */ static SPINAND_OP_VARIANTS(read_cache_dtr_variants, + SPINAND_PAGE_READ_FROM_CACHE_QUADIO_DTR_OP(0, 8, NULL, 0, 80 * HZ_PER_MHZ), + SPINAND_PAGE_READ_FROM_CACHE_X4_DTR_OP(0, 2, NULL, 0, 80 * HZ_PER_MHZ), SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0), SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_DUALIO_DTR_OP(0, 4, NULL, 0, 80 * HZ_PER_MHZ), + SPINAND_PAGE_READ_FROM_CACHE_X2_DTR_OP(0, 2, NULL, 0, 80 * HZ_PER_MHZ), SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0), SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_DTR_OP(0, 2, NULL, 0, 80 * HZ_PER_MHZ), SPINAND_PAGE_READ_FROM_CACHE_FAST_OP(0, 1, NULL, 0), SPINAND_PAGE_READ_FROM_CACHE_OP(0, 1, NULL, 0, 54 * HZ_PER_MHZ));
W25N01JW and W25N02JW support many DTR read modes in single, dual and quad configurations. DTR modes however cannot be used at 166MHz, as the bus frequency in this case must be lowered to 80MHz. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> --- drivers/mtd/nand/spi/winbond.c | 5 +++++ 1 file changed, 5 insertions(+)