From: Jaime Liao <jaimeliao.tw@gmail.com>
To: linux-mtd@lists.infradead.org, tudor.ambarus@linaro.org,
pratyush@kernel.org, michael@walle.cc, miquel.raynal@bootlin.com
Cc: leoyu@mxic.com.tw, jaimeliao@mxic.com.tw
Subject: [PATCH v6 5/7] spi: mxic: Add support for swapping byte
Date: Thu, 30 Nov 2023 16:38:52 +0800 [thread overview]
Message-ID: <20231130083854.55221-6-jaimeliao.tw@gmail.com> (raw)
In-Reply-To: <20231130083854.55221-1-jaimeliao.tw@gmail.com>
From: JaimeLiao <jaimeliao@mxic.com.tw>
Some SPI-NOR flash swap the bytes on a 16-bit boundary when
configured in Octal DTR mode. It means data format D0 D1 D2 D3
would be swapped to D1 D0 D3 D2. So that whether controller
support swapping bytes should be checked before enable Octal
DTR mode. Add swap byte support on a 16-bit boundary when
configured in Octal DTR mode for Macronix xSPI host controller
dirver.
Signed-off-by: JaimeLiao <jaimeliao@mxic.com.tw>
---
drivers/spi/spi-mxic.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/spi/spi-mxic.c b/drivers/spi/spi-mxic.c
index 60c9f3048ac9..085c9037d6f5 100644
--- a/drivers/spi/spi-mxic.c
+++ b/drivers/spi/spi-mxic.c
@@ -572,6 +572,7 @@ static const struct spi_controller_mem_ops mxic_spi_mem_ops = {
static const struct spi_controller_mem_caps mxic_spi_mem_caps = {
.dtr = true,
+ .dtr_swab16 = true,
.ecc = true,
};
--
2.25.1
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next prev parent reply other threads:[~2023-11-30 8:39 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-30 8:38 [PATCH v6 0/7] Add octal DTR support for Macronix flash Jaime Liao
2023-11-30 8:38 ` [PATCH v6 1/7] mtd: spi-nor: add Octal " Jaime Liao
2023-11-30 8:38 ` [PATCH v6 2/7] spi: spi-mem: Allow specifying the byte order in DTR mode Jaime Liao
2023-11-30 8:38 ` [PATCH v6 3/7] mtd: spi-nor: core: " Jaime Liao
2023-11-30 8:38 ` [PATCH v6 4/7] mtd: spi-nor: sfdp: Get the 8D-8D-8D byte order from BFPT Jaime Liao
2023-11-30 8:38 ` Jaime Liao [this message]
2023-11-30 9:11 ` [PATCH v6 5/7] spi: mxic: Add support for swapping byte Michael Walle
2023-12-01 1:42 ` liao jaime
2023-12-01 8:25 ` Michael Walle
2023-12-04 6:44 ` liao jaime
2023-12-04 7:35 ` Tudor Ambarus
2023-12-07 12:39 ` Michael Walle
2023-12-12 7:44 ` liao jaime
2023-11-30 8:38 ` [PATCH v6 6/7] mtd: spi-nor: add support for Macronix Octal flash with RWW feature Jaime Liao
2023-11-30 8:38 ` [PATCH v6 7/7] mtd: spi-nor: add support for Macronix Octal flash Jaime Liao
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