On 11/2/26 10:12 AM, [email protected] wrote:
Hello Kuwano-san,
From: Kenichi Nagai <[email protected]>
Add IDs for Winbond W77T51NW, 512M-bit Secure Serial Flash Memory
with Post-Quantum Cryptography, SPI, Quad, Octal and DTR . For
details please see vendor page:
https://www.winbond.com/hq/product/code-storage-flash/trustme-secure/w77t-nw/
Please use Link: tag.
Does Link tag apply to arbitrary links in the commit message ?
I believe Link tag only applies to lore links, hence I did not use it.
Unfortunately, datasheet isn't publicly available...
Yes, I know.
Is it possible to add board information you tested?
Retronix Sparrow Hawk , Renesas R-Car V4H SoC .
Signed-off-by: Kenichi Nagai <[email protected]>
Signed-off-by: Marek Vasut <[email protected]>
---
Cc: Kenichi Nagai <[email protected]>
Cc: Takahiro Kuwano <[email protected]>
Cc: Tom Rini <[email protected]>
Cc: Vignesh R <[email protected]>
Cc: Vincent Jardin <[email protected]>
Cc: Yuya Hamamachi <[email protected]>
Cc: [email protected]
---
drivers/mtd/spi/spi-nor-ids.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/mtd/spi/spi-nor-ids.c b/drivers/mtd/spi/spi-nor-ids.c
index 67486d7a945..fce22300b61 100644
--- a/drivers/mtd/spi/spi-nor-ids.c
+++ b/drivers/mtd/spi/spi-nor-ids.c
@@ -670,6 +670,7 @@ const struct flash_info spi_nor_ids[] = {
{ INFO("w25q01nw-im", 0xef8021, 0, 64 * 1024, 2048, SECT_4K |
SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
{ INFO("w25q02nw-im", 0xef8022, 0, 64 * 1024, 4096, SECT_4K |
SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
{ INFO("w77q51nw", 0xef8a1a, 0, 64 * 1024, 1024, SECT_4K |
SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
+ { INFO("w77t51nw", 0xef8e1a, 0, 64 * 1024, 1024, SECT_4K |
SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
It would be helpful to see how it differs from the existing w77q51nw.
From what I can find in [1] and [2], W77T is faster and wider than W77Q:
- W77T is up to Octal-IO/200MHz
- W77Q is up to Quad-IO /166MHz
The security extras are unsupported by either U-Boot or Linux, and I do
not know the details of the security extras of the W77T part, so I can
not comment on that.
And of course, the ID differs too.
Do you have any particular detail in mind that you would like me to find
out ?
Thank you for your help !
[1]
https://www.winbond.com/hq/product/code-storage-flash/trustme-secure/w77t-nw/
[2]
https://www.winbond.com/hq/product/code-storage-flash/trustme-secure/w77q-nw/
--
Best regards,
Marek Vasut
