2021-02-09 11:20:40

by Md Sadre Alam

[permalink] [raw]
Subject: [PATCH] mtd: spi-nor: gigadevice: Add support for gd25lb256e

Add support for gd25lb256e. This device tested on IPQ5018
platform with dd from/to the flash for read/write respectly,
and mtd erase for erasing the flash.

Signed-off-by: Md Sadre Alam <[email protected]>
---
drivers/mtd/spi-nor/gigadevice.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/mtd/spi-nor/gigadevice.c b/drivers/mtd/spi-nor/gigadevice.c
index 447d84b..8f1e7ec 100644
--- a/drivers/mtd/spi-nor/gigadevice.c
+++ b/drivers/mtd/spi-nor/gigadevice.c
@@ -50,6 +50,9 @@ static const struct flash_info gigadevice_parts[] = {
SPI_NOR_4B_OPCODES | SPI_NOR_HAS_LOCK |
SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6)
.fixups = &gd25q256_fixups },
+ { "gd25lb256e", INFO(0xc86719, 0, 64 * 1024, 512,
+ SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
+ SPI_NOR_4B_OPCODES) },
};

const struct spi_nor_manufacturer spi_nor_gigadevice = {
--
2.7.4


2021-02-16 15:12:28

by Md Sadre Alam

[permalink] [raw]
Subject: Re: [PATCH] mtd: spi-nor: gigadevice: Add support for gd25lb256e

On 2021-02-09 16:41, Md Sadre Alam wrote:
> Add support for gd25lb256e. This device tested on IPQ5018
> platform with dd from/to the flash for read/write respectly,
> and mtd erase for erasing the flash.
>
> Signed-off-by: Md Sadre Alam <[email protected]>
> ---
> drivers/mtd/spi-nor/gigadevice.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/mtd/spi-nor/gigadevice.c
> b/drivers/mtd/spi-nor/gigadevice.c
> index 447d84b..8f1e7ec 100644
> --- a/drivers/mtd/spi-nor/gigadevice.c
> +++ b/drivers/mtd/spi-nor/gigadevice.c
> @@ -50,6 +50,9 @@ static const struct flash_info gigadevice_parts[] = {
> SPI_NOR_4B_OPCODES | SPI_NOR_HAS_LOCK |
> SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6)
> .fixups = &gd25q256_fixups },
> + { "gd25lb256e", INFO(0xc86719, 0, 64 * 1024, 512,
> + SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
> + SPI_NOR_4B_OPCODES) },
> };
>
> const struct spi_nor_manufacturer spi_nor_gigadevice = {

ping! Is there any additional info needed for this ?

2021-02-16 16:09:36

by Tudor Ambarus

[permalink] [raw]
Subject: Re: [PATCH] mtd: spi-nor: gigadevice: Add support for gd25lb256e

Hi,

On 2/16/21 5:10 PM, [email protected] wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> On 2021-02-09 16:41, Md Sadre Alam wrote:
>> Add support for gd25lb256e. This device tested on IPQ5018
>> platform with dd from/to the flash for read/write respectly,
>> and mtd erase for erasing the flash.
>>
>> Signed-off-by: Md Sadre Alam <[email protected]>
>> ---
>>  drivers/mtd/spi-nor/gigadevice.c | 3 +++
>>  1 file changed, 3 insertions(+)
>>
>> diff --git a/drivers/mtd/spi-nor/gigadevice.c
>> b/drivers/mtd/spi-nor/gigadevice.c
>> index 447d84b..8f1e7ec 100644
>> --- a/drivers/mtd/spi-nor/gigadevice.c
>> +++ b/drivers/mtd/spi-nor/gigadevice.c
>> @@ -50,6 +50,9 @@ static const struct flash_info gigadevice_parts[] = {
>>                          SPI_NOR_4B_OPCODES | SPI_NOR_HAS_LOCK |
>>                          SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6)
>>               .fixups = &gd25q256_fixups },
>> +     { "gd25lb256e", INFO(0xc86719, 0, 64 * 1024, 512,
>> +                       SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
>> +                       SPI_NOR_4B_OPCODES) },
>>  };
>>
>>  const struct spi_nor_manufacturer spi_nor_gigadevice = {
>
> ping! Is there any additional info needed for this ?

No other info needed, just time to review it. Please stop sending
free pings, every patch will be reviewed.

Cheers,
ta

2021-03-08 08:45:53

by Tudor Ambarus

[permalink] [raw]
Subject: Re: [PATCH] mtd: spi-nor: gigadevice: Add support for gd25lb256e

On 2/9/21 1:11 PM, Md Sadre Alam wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> Add support for gd25lb256e. This device tested on IPQ5018
> platform with dd from/to the flash for read/write respectly,

typo: respectly
> and mtd erase for erasing the flash.
>
> Signed-off-by: Md Sadre Alam <[email protected]>
> ---
> drivers/mtd/spi-nor/gigadevice.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/mtd/spi-nor/gigadevice.c b/drivers/mtd/spi-nor/gigadevice.c
> index 447d84b..8f1e7ec 100644
> --- a/drivers/mtd/spi-nor/gigadevice.c
> +++ b/drivers/mtd/spi-nor/gigadevice.c
> @@ -50,6 +50,9 @@ static const struct flash_info gigadevice_parts[] = {
> SPI_NOR_4B_OPCODES | SPI_NOR_HAS_LOCK |
> SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6)
> .fixups = &gd25q256_fixups },
> + { "gd25lb256e", INFO(0xc86719, 0, 64 * 1024, 512,
> + SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
> + SPI_NOR_4B_OPCODES) },

The flash doesn't have support for 0x3b command, you can't add the
SPI_NOR_DUAL_READ flag.

I see that the flash name contains info about the generation of the flash.
Is the generation differentiated by a different device ID? If not, we can
strip the "e" from the flash name.

Looks like the flash has support for BP0-3 protection. You can try
to add the flash locking flags and test the support with mtd-utils,
if you're interested in this kind of support.

Cheers,
ta

> };
>
> const struct spi_nor_manufacturer spi_nor_gigadevice = {
> --
> 2.7.4
>

2023-06-13 05:53:11

by Hao Yao

[permalink] [raw]
Subject: [PATCH v2] mtd: spi-nor: gigadevice: Add support for gd25lb256

Signed-off-by: Md Sadre Alam <[email protected]>
Signed-off-by: Hao Yao <[email protected]>
---
drivers/mtd/spi-nor/gigadevice.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/mtd/spi-nor/gigadevice.c b/drivers/mtd/spi-nor/gigadevice.c
index d57ddaf1525b..d56c1876549f 100644
--- a/drivers/mtd/spi-nor/gigadevice.c
+++ b/drivers/mtd/spi-nor/gigadevice.c
@@ -62,6 +62,10 @@ static const struct flash_info gigadevice_nor_parts[] = {
FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
SPI_NOR_QUAD_READ) },
+ { "gd25lb256", INFO(0xc86719, 0, 64 * 1024, 512)
+ PARSE_SFDP
+ FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6)
+ FIXUP_FLAGS(SPI_NOR_4B_OPCODES) },
{ "gd25q256", INFO(0xc84019, 0, 64 * 1024, 512)
PARSE_SFDP
FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6)
--
2.34.1


2023-07-18 18:10:24

by Tudor Ambarus

[permalink] [raw]
Subject: Re: [PATCH v2] mtd: spi-nor: gigadevice: Add support for gd25lb256

Hi!

On 13.06.2023 07:53, Hao Yao wrote:

You need some commit message here describing your changes. Please read
https://www.kernel.org/doc/html/latest/process/submitting-patches.html
before submitting v3.

We require contributors that submit flash additions or updates to dump
the SFDP tables and do some sanity checks. Here's an example on how to
do it:
https://lore.kernel.org/linux-mtd/[email protected]/

> Signed-off-by: Hao Yao <[email protected]>
> ---
> drivers/mtd/spi-nor/gigadevice.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/mtd/spi-nor/gigadevice.c b/drivers/mtd/spi-nor/gigadevice.c
> index d57ddaf1525b..d56c1876549f 100644
> --- a/drivers/mtd/spi-nor/gigadevice.c
> +++ b/drivers/mtd/spi-nor/gigadevice.c
> @@ -62,6 +62,10 @@ static const struct flash_info gigadevice_nor_parts[] = {
> FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
> NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
> SPI_NOR_QUAD_READ) },
> + { "gd25lb256", INFO(0xc86719, 0, 64 * 1024, 512)

INFO(0xc86719, 0, 0, 0) please, those params can be retrieved at SFDP
parsing time.


> + PARSE_SFDP
> + FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6)
> + FIXUP_FLAGS(SPI_NOR_4B_OPCODES) },

Is the SPI_NOR_4B_OPCODES really needed, isn't the support determined at
SFDP parsing time?

> { "gd25q256", INFO(0xc84019, 0, 64 * 1024, 512)
> PARSE_SFDP
> FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6)