From: Nathan Barrett-Morrison <nathan.morrison@timesys.com>
Cc: nathan.morrison@timesys.com, greg.malysa@timesys.com,
Tudor Ambarus <tudor.ambarus@microchip.com>,
Pratyush Yadav <pratyush@kernel.org>,
Michael Walle <michael@walle.cc>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
linux-mtd@lists.infradead.org (open list:SPI NOR SUBSYSTEM),
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v3 1/3] mtd: spi-nor: Extend SFDP 4byte address instruction lookup table with new octal modes as per JEDEC JESD216F
Date: Thu, 1 Dec 2022 16:27:48 -0500 [thread overview]
Message-ID: <20221201212750.267721-2-nathan.morrison@timesys.com> (raw)
In-Reply-To: <20221201212750.267721-1-nathan.morrison@timesys.com>
This adds the new bit fields for
reading: 1S-1S-8S, 1S-8S-8S, 1D-8D-8D
programming: 1S-1S-8S, 1S-8S-8S
Signed-off-by: Nathan Barrett-Morrison <nathan.morrison@timesys.com>
---
drivers/mtd/spi-nor/sfdp.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/mtd/spi-nor/sfdp.c b/drivers/mtd/spi-nor/sfdp.c
index 2257f1b4c2e2..e4e87815ba94 100644
--- a/drivers/mtd/spi-nor/sfdp.c
+++ b/drivers/mtd/spi-nor/sfdp.c
@@ -953,11 +953,16 @@ static int spi_nor_parse_4bait(struct spi_nor *nor,
{ SNOR_HWCAPS_READ_1_1_1_DTR, BIT(13) },
{ SNOR_HWCAPS_READ_1_2_2_DTR, BIT(14) },
{ SNOR_HWCAPS_READ_1_4_4_DTR, BIT(15) },
+ { SNOR_HWCAPS_READ_1_1_8, BIT(20) },
+ { SNOR_HWCAPS_READ_1_8_8, BIT(21) },
+ { SNOR_HWCAPS_READ_1_8_8_DTR, BIT(22) },
};
static const struct sfdp_4bait programs[] = {
{ SNOR_HWCAPS_PP, BIT(6) },
{ SNOR_HWCAPS_PP_1_1_4, BIT(7) },
{ SNOR_HWCAPS_PP_1_4_4, BIT(8) },
+ { SNOR_HWCAPS_PP_1_1_8, BIT(23) },
+ { SNOR_HWCAPS_PP_1_8_8, BIT(24) },
};
static const struct sfdp_4bait erases[SNOR_ERASE_TYPE_MAX] = {
{ 0u /* not used */, BIT(9) },
--
2.30.2
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next prev parent reply other threads:[~2022-12-01 21:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-01 21:27 [PATCH v3 0/3] mtd: spi-nor: Extend SFDP to support additional octal modes as per latest JEDEC standard Nathan Barrett-Morrison
2022-12-01 21:27 ` Nathan Barrett-Morrison [this message]
2022-12-01 21:27 ` [PATCH v3 2/3] mtd: spi-nor: Add additional octal-mode flags to be checked during SFDP Nathan Barrett-Morrison
2022-12-01 22:08 ` Michael Walle
2022-12-01 21:27 ` [PATCH v3 3/3] mtd: spi-nor: Add support for IS25LX256 operating in 1S-8S-8S octal read mode Nathan Barrett-Morrison
2022-12-01 22:12 ` Michael Walle
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