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Message-Id: <20241029-spi-nor-v2-1-e166c3900e19@gmail.com>
Date: Tue, 29 Oct 2024 12:23:30 +0100
From: Marcus Folkesson <marcus.folkesson@...il.com>
To: Tudor Ambarus <tudor.ambarus@...aro.org>,
Pratyush Yadav <pratyush@...nel.org>, Michael Walle <mwalle@...nel.org>,
Miquel Raynal <miquel.raynal@...tlin.com>,
Richard Weinberger <richard@....at>, Vignesh Raghavendra <vigneshr@...com>,
Nicolas Ferre <nicolas.ferre@...rochip.com>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Claudiu Beznea <claudiu.beznea@...on.dev>
Cc: linux-mtd@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org, Marcus Folkesson <marcus.folkesson@...il.com>
Subject: [PATCH v2] mtd: spi-nor: atmel: add at25sf321 entry
Add entry for the at25sf321 32Mbit SPI flash.
This flash is populated on a custom board and was tested at
10MHz frequency using the "ti,da830-spi" SPI controller.
Link:
https://www.renesas.com/en/document/dst/at25sf321-datasheet?r=1608801
Signed-off-by: Marcus Folkesson <marcus.folkesson@...il.com>
---
root# cat /sys/class/spi_master/spi1/spi1.1/spi-nor/partname
at25sf321
root# cat /sys/class/spi_master/spi1/spi1.1/spi-nor/jedec_id
1f8701
root# cat /sys/class/spi_master/spi1/spi1.1/spi-nor/manufacturer
atmel
root# cat /sys/kernel/debug/spi-nor/spi1.1/capabilities
Supported read modes by the flash
1S-1S-1S
opcode 0x03
mode cycles 0
dummy cycles 0
1S-1S-1S (fast read)
opcode 0x0b
mode cycles 0
dummy cycles 8
Supported page program modes by the flash
1S-1S-1S
opcode 0x0
root# cat /sys/kernel/debug/spi-nor/spi1.1/params
name at25sf321
id 1f 87 01
size 4.00 MiB
write size 1
page size 256
address nbytes 3
flags HAS_16BIT_SR
opcodes
read 0x0b
dummy cycles 8
erase 0x20
program 0x02
8D extension none
protocols
read 1S-1S-1S
write 1S-1S-1S
register 1S-1S-1S
erase commands
20 (4.00 KiB) [0]
d8 (64.0 KiB) [1]
c7 (4.00 MiB)
sector map
region (in hex) | erase mask | flags
------------------+------------+----------
00000000-003fffff | [01 ] |
---
Changes in v2:
- Change from at25sf321b to at25sf321
- Link to v1: https://lore.kernel.org/r/20241018-spi-nor-v1-1-d725bfb701ec@gmail.com
---
drivers/mtd/spi-nor/atmel.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/mtd/spi-nor/atmel.c b/drivers/mtd/spi-nor/atmel.c
index 45d1153a04a07b7c61f46b117311b24ab695038f..8285a16b253d54ae8c4a5302850244d2248aa755 100644
--- a/drivers/mtd/spi-nor/atmel.c
+++ b/drivers/mtd/spi-nor/atmel.c
@@ -238,6 +238,11 @@ static const struct flash_info atmel_nor_parts[] = {
.flags = SPI_NOR_HAS_LOCK,
.no_sfdp_flags = SECT_4K,
.fixups = &at25fs_nor_fixups
+ }, {
+ .id = SNOR_ID(0x1f, 0x87, 0x01),
+ .name = "at25sf321",
+ .size = SZ_4M,
+ .no_sfdp_flags = SECT_4K,
},
};
---
base-commit: 200289db261f0c8131a5756133e9d30966289c3b
change-id: 20241018-spi-nor-dc29698dea0f
Best regards,
--
Marcus Folkesson <marcus.folkesson@...il.com>
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