2022-02-09 07:50:12

by Shaik Sajida Bhanu

[permalink] [raw]
Subject: [PATCH V5] mtd: spi-nor: winbond: Add support for winbond chip

Add support for winbond W25Q512NW-IM chip.

Signed-off-by: Shaik Sajida Bhanu <[email protected]>
Reviewed-by: Doug Anderson <[email protected]>
---
Changes since V1:
- Added space before name of the flash part as suggested by Doug.

Changes since V2:
- Updated chip name as w25q512nwm as suggested by Doug.

Changes since V3:
- Updated flash_info flags passing according to below patch.

Changes since V4:
- Added OTP support for SPI card as suggested by Michael Walle.
- Updated SFDP flags passing as suggested by Pratyush Yadav.
---
drivers/mtd/spi-nor/winbond.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c
index 675f32c..315b9f6 100644
--- a/drivers/mtd/spi-nor/winbond.c
+++ b/drivers/mtd/spi-nor/winbond.c
@@ -124,6 +124,10 @@ static const struct flash_info winbond_parts[] = {
{ "w25m512jv", INFO(0xef7119, 0, 64 * 1024, 1024)
NO_SFDP_FLAGS(SECT_4K | SPI_NOR_QUAD_READ |
SPI_NOR_DUAL_READ) },
+ { "w25q512nwm", INFO(0xef8020, 0, 64 * 1024, 1024)
+ FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
+ PARSE_SFDP
+ OTP_INFO(256, 3, 0x1000, 0x1000) },
{ "w25q512jvq", INFO(0xef4020, 0, 64 * 1024, 1024)
NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
SPI_NOR_QUAD_READ) },
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation



2022-02-09 12:57:00

by Michael Walle

[permalink] [raw]
Subject: Re: [PATCH V5] mtd: spi-nor: winbond: Add support for winbond chip

Hi,

Am 2022-02-08 20:58, schrieb Shaik Sajida Bhanu:
> Add support for winbond W25Q512NW-IM chip.

Also please include that in the subject. Eg.

mtd: spi-nor: winbond: add support for W25Q512NW-IM

>
> Signed-off-by: Shaik Sajida Bhanu <[email protected]>
> Reviewed-by: Doug Anderson <[email protected]>
> ---
> Changes since V1:
> - Added space before name of the flash part as suggested by Doug.
>
> Changes since V2:
> - Updated chip name as w25q512nwm as suggested by Doug.
>
> Changes since V3:
> - Updated flash_info flags passing according to below patch.
>
> Changes since V4:
> - Added OTP support for SPI card as suggested by Michael Walle.
> - Updated SFDP flags passing as suggested by Pratyush Yadav.
> ---
> drivers/mtd/spi-nor/winbond.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/mtd/spi-nor/winbond.c
> b/drivers/mtd/spi-nor/winbond.c
> index 675f32c..315b9f6 100644
> --- a/drivers/mtd/spi-nor/winbond.c
> +++ b/drivers/mtd/spi-nor/winbond.c
> @@ -124,6 +124,10 @@ static const struct flash_info winbond_parts[] = {
> { "w25m512jv", INFO(0xef7119, 0, 64 * 1024, 1024)
> NO_SFDP_FLAGS(SECT_4K | SPI_NOR_QUAD_READ |
> SPI_NOR_DUAL_READ) },
> + { "w25q512nwm", INFO(0xef8020, 0, 64 * 1024, 1024)
> + FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
> + PARSE_SFDP

This usually goes first, eg.

PARSE_SFDP
FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
OTP_INFO(256, 3, 0x1000, 0x1000)

> + OTP_INFO(256, 3, 0x1000, 0x1000) },
> { "w25q512jvq", INFO(0xef4020, 0, 64 * 1024, 1024)
> NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
> SPI_NOR_QUAD_READ) },

Otherwise the SFDP dump is still missing as requested in my
comment in v4. Please make sure you put it in the comment
section of the patch, that is under the "---" line.

Then I think, this patch is good.

-michael

2022-02-09 14:00:09

by Shaik Sajida Bhanu

[permalink] [raw]
Subject: RE: [PATCH V5] mtd: spi-nor: winbond: Add support for winbond chip

Hi,

Thanks for the review.

Please find the inline comments.

Thanks,
Sajida

-----Original Message-----
From: Michael Walle <[email protected]>
Sent: Wednesday, February 9, 2022 2:01 PM
To: Sajida Bhanu (Temp) (QUIC) <[email protected]>
Cc: [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; Sahitya Tummala (QUIC) <[email protected]>; Veerabhadrarao Badiganti (QUIC) <[email protected]>; Ram Prakash Gupta (QUIC) <[email protected]>; Pradeep Pragallapati (QUIC) <[email protected]>; Sarthak Garg (QUIC) <[email protected]>
Subject: Re: [PATCH V5] mtd: spi-nor: winbond: Add support for winbond chip

Hi,

Am 2022-02-08 20:58, schrieb Shaik Sajida Bhanu:
> Add support for winbond W25Q512NW-IM chip.

Also please include that in the subject. Eg.

mtd: spi-nor: winbond: add support for W25Q512NW-IM

>
> Signed-off-by: Shaik Sajida Bhanu <[email protected]>
> Reviewed-by: Doug Anderson <[email protected]>
> ---
> Changes since V1:
> - Added space before name of the flash part as suggested by Doug.
>
> Changes since V2:
> - Updated chip name as w25q512nwm as suggested by Doug.
>
> Changes since V3:
> - Updated flash_info flags passing according to below patch.
>
> Changes since V4:
> - Added OTP support for SPI card as suggested by Michael Walle.
> - Updated SFDP flags passing as suggested by Pratyush Yadav.
> ---
> drivers/mtd/spi-nor/winbond.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/mtd/spi-nor/winbond.c
> b/drivers/mtd/spi-nor/winbond.c index 675f32c..315b9f6 100644
> --- a/drivers/mtd/spi-nor/winbond.c
> +++ b/drivers/mtd/spi-nor/winbond.c
> @@ -124,6 +124,10 @@ static const struct flash_info winbond_parts[] = {
> { "w25m512jv", INFO(0xef7119, 0, 64 * 1024, 1024)
> NO_SFDP_FLAGS(SECT_4K | SPI_NOR_QUAD_READ |
> SPI_NOR_DUAL_READ) },
> + { "w25q512nwm", INFO(0xef8020, 0, 64 * 1024, 1024)
> + FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
> + PARSE_SFDP

This usually goes first, eg.

PARSE_SFDP
FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) OTP_INFO(256, 3, 0x1000, 0x1000)


>>>> Sure will update.

> + OTP_INFO(256, 3, 0x1000, 0x1000) },
> { "w25q512jvq", INFO(0xef4020, 0, 64 * 1024, 1024)
> NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
> SPI_NOR_QUAD_READ) },

Otherwise the SFDP dump is still missing as requested in my comment in v4. Please make sure you put it in the comment section of the patch, that is under the "---" line.

Then I think, this patch is good.

>>>>> Sure will add SFDP dump.

-michael