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From: David Clear <dac2@pensando.io>
To: tudor.ambarus@microchip.com, linux-mtd@lists.infradead.org
Cc: snelson@pensando.io, David Clear <dac2@pensando.io>
Subject: [PATCH v2 2/2] mtd: spi-nor: Support SPI_NOR_DUAL_READ on Micron mt25qu02g.
Date: Mon, 20 Jul 2020 09:36:56 -0700	[thread overview]
Message-ID: <20200720163656.38006-3-dac2@pensando.io> (raw)
In-Reply-To: <20200720163656.38006-1-dac2@pensando.io>

The Micron mt25qu02g supports both x2 and x4 transactions.  Add the
SPI_NOR_DUAL_READ to its spi_nor_ids[] table entry.

Tested on Pensando SoC hardware with a cadence quadspi controller
via drivers/spi/spi-cadence-quadspi.c, in x2 mode at 50MHz.
  - random data write, erase, read   - verified erase operations
  - random data write, read/compare  - verified write/read operations

Signed-off-by: David Clear <dac2@pensando.io>
Acked-by: Shannon Nelson <snelson@pensando.io>
---
 drivers/mtd/spi-nor/micron-st.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-st.c
index 3dca5b9af3b6..ef3695080710 100644
--- a/drivers/mtd/spi-nor/micron-st.c
+++ b/drivers/mtd/spi-nor/micron-st.c
@@ -71,8 +71,8 @@ static const struct flash_info st_parts[] = {
 			      SECT_4K | USE_FSR | SPI_NOR_QUAD_READ |
 			      NO_CHIP_ERASE) },
 	{ "mt25qu02g",   INFO(0x20bb22, 0, 64 * 1024, 4096,
-			      SECT_4K | USE_FSR | SPI_NOR_QUAD_READ |
-			      NO_CHIP_ERASE) },
+			      SECT_4K | USE_FSR | SPI_NOR_DUAL_READ |
+			      SPI_NOR_QUAD_READ | NO_CHIP_ERASE) },
 
 	{ "m25p05",  INFO(0x202010,  0,  32 * 1024,   2, 0) },
 	{ "m25p10",  INFO(0x202011,  0,  32 * 1024,   4, 0) },
-- 
2.17.1


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  parent reply	other threads:[~2020-07-20 16:38 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-20 16:36 [PATCH v2 0/2] Support flash devices used on Pensando boards David Clear
2020-07-20 16:36 ` [PATCH v2 1/2] mtd: spi-nor: Add support for Macronix mx66u2g45g David Clear
2020-07-20 16:36 ` David Clear [this message]
2020-07-27 12:33 ` [PATCH v2 0/2] Support flash devices used on Pensando boards Tudor Ambarus

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