linux-kernel - Re: [PATCH] mtd: spi-nor: winbond: add support for w25q01jv-im

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Message-ID: <Yz89UJsFJBMaTxuy@heinlein>
Date:   Thu, 6 Oct 2022 15:40:48 -0500
From:   Patrick Williams <patrick@...cx.xyz>
To:     Michael Walle <michael@...le.cc>
Cc:     Delphine CC Chiu <Delphine_CC_Chiu@...ynn.com>,
        ~sircmpwn/email-test-drive@...ts.sr.ht, garnermic@...com,
        Tudor Ambarus <tudor.ambarus@...rochip.com>,
        Pratyush Yadav <pratyush@...nel.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Potin Lai <potin.lai@...ntatw.com>
Subject: Re: [PATCH] mtd: spi-nor: winbond: add support for w25q01jv-im

On Thu, Oct 06, 2022 at 01:52:33PM +0200, Michael Walle wrote:
> Hi,
> 
> Am 2022-10-06 09:08, schrieb Delphine CC Chiu:
> > Add support for winbond w25q01jv-im chip.
> > 
> > Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@...ynn.com>
> > ---
> >  drivers/mtd/spi-nor/winbond.c | 3 +++
> >  1 file changed, 3 insertions(+)
> > 
> > diff --git a/drivers/mtd/spi-nor/winbond.c 
> > b/drivers/mtd/spi-nor/winbond.c
> > index ffaa24055259..2b02b05ceb0a 100644
> > --- a/drivers/mtd/spi-nor/winbond.c
> > +++ b/drivers/mtd/spi-nor/winbond.c
> > @@ -139,6 +139,9 @@ static const struct flash_info winbond_nor_parts[] 
> > = {
> >  	{ "w25q512jvq", INFO(0xef4020, 0, 64 * 1024, 1024)
> >  		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
> >  			      SPI_NOR_QUAD_READ) },
> > +	{ "w25q01jv-im", INFO(0xef7021, 0, 64 * 1024, 2048)
> 
> The name should be w25q01jvm.
> 
> > +		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
> > +			      SPI_NOR_QUAD_READ) },
> 
> That flash should support SFDP, so please try the following:
> +	{ "w25q01jvm", INFO(0xef7021, 0, 0, 0) PARSE_SFDP },

It seems like QEMU doesn't support SFDP yet.  Is using PARSE_SFDP a hard
requirement or can we delay until the QEMU support can be written?

-- 
Patrick Williams

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