linux-kernel - Re: [PATCH v2 1/1] mtd: spi-nor: winbond: Add support for w25q01jv-iq

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Date:   Tue, 22 Feb 2022 07:37:28 +0000
From:   Potin Lai (賴柏廷) <Potin.Lai@...ntatw.com>
To:     Michael Walle <michael@...le.cc>
CC:     Tudor Ambarus <tudor.ambarus@...rochip.com>,
        Pratyush Yadav <p.yadav@...com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Patrick Williams <patrick@...cx.xyz>,
        "linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/1] mtd: spi-nor: winbond: Add support for w25q01jv-iq

Michael Walle 於 2022/2/22 下午 03:24 寫道:
> Hi,
>
> Am 2022-02-22 07:42, schrieb Potin Lai:
>> Add support for winbond w25q01jv-iq chip
>>
>> root@...tchley:~# cat
>> /sys/devices/platform/ahb/1e620000.spi/spi_master/spi0/spi0.0/spi-nor/jedec_id
>> ef4021
>> root@...tchley:~# cat
>> /sys/devices/platform/ahb/1e620000.spi/spi_master/spi0/spi0.0/spi-nor/manufacturer
>> winbond
>> root@...tchley:~# cat
>> /sys/devices/platform/ahb/1e620000.spi/spi_master/spi0/spi0.0/spi-nor/partname
>> w25q01jv-iq
>> root@...tchley:~# hexdump -C
>> /sys/devices/platform/ahb/1e620000.spi/spi_master/spi0/spi0.0/spi-nor/sfdp
>> 00000000 53 46 44 50 06 01 01 ff 00 06 01 10 80 00 00 ff |SFDP............|
>> 00000010 84 00 01 02 d0 00 00 ff 03 00 01 02 f0 00 00 ff |................|
>> 00000020 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
>> *
>> 00000080 e5 20 fb ff ff ff ff 3f 44 eb 08 6b 08 3b 42 bb |. .....?D..k.;B.|
>> 00000090 fe ff ff ff ff ff 00 00 ff ff 40 eb 0c 20 0f 52 |..........@.. .R|
>> 000000a0 10 d8 00 00 36 02 a6 00 82 ea 14 e2 e9 63 76 33 |....6........cv3|
>> 000000b0 7a 75 7a 75 f7 a2 d5 5c 19 f7 4d ff e9 70 f9 a5 |zuzu...\..M..p..|
>> 000000c0 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
>> 000000d0 ff 0a f0 ff 21 ff dc ff |....!...|
>> 000000d8
>
> Can you please provide an md5sum or sha256sum of this file?

root@...tchley:~# md5sum /sys/devices/platform/ahb/1e620000.spi/spi_master/spi0/spi0.0/spi-nor/sfdp
a7b9dbf76e99a33db99e557b6676588a  /sys/devices/platform/ahb/1e620000.spi/spi_master/spi0/spi0.0/spi-nor/sfdp

Is it required in commit message, if yes, I will update it.


Thanks,
Potin
>
>>
>> Signed-off-by: Potin Lai <potin.lai@...ntatw.com>
>>
>> ---
>>
>> Changes v1 --> v2:
>> - rework patch to work with new flags
>>
>> ---
>>  drivers/mtd/spi-nor/winbond.c | 2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c
>> index 59d53b4c39c8..4c088250fe96 100644
>> --- a/drivers/mtd/spi-nor/winbond.c
>> +++ b/drivers/mtd/spi-nor/winbond.c
>> @@ -131,6 +131,8 @@ static const struct flash_info winbond_parts[] = {
>>      { "w25q512jvq", INFO(0xef4020, 0, 64 * 1024, 1024)
>>          NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
>>                    SPI_NOR_QUAD_READ) },
>> +    { "w25q01jv-iq", INFO(0xef4021, 0, 64 * 1024, 2048)
>
> name should be "w25q01jvq", see the flash name right before.
>
> With that fixed, and the md5sum above:
>
> Reviewed-by: Michael Walle <michael@...le.cc>
>
>> +        PARSE_SFDP },
>>  };
>>
>
> -michael