On Fri, 2026-07-03 at 09:03 +0000, [email protected] wrote:
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> 
> Hi,
> 
> > All currently supported ESMT/EON flashes supports 4KB sector and
> > dual read.
> > EN25Q80B also supports 1-1-4 quad read.
> > 
> > Link: 
> > https://urldefense.com/v3/__https://www.esmt.com.tw/upload/pdf/ESMT/datasheets/EN25Q80B.pdf__;!!CTRNKA9wMg0ARbw!j7E681Y4Vzt6S4aIsheiVdVOq9m8dv0YTHDU9h9Bd3fu83ASyITxt4cxou55heRBOS52p8pOfsmu5cjY5uK7MdQnA5YmOgE$
> > Link: 
> > https://urldefense.com/v3/__https://www.esmt.com.tw/upload/pdf/ESMT/datasheets/EN25QH128A*20(2TC).pdf__;JQ!!CTRNKA9wMg0ARbw!j7E681Y4Vzt6S4aIsheiVdVOq9m8dv0YTHDU9h9Bd3fu83ASyITxt4cxou55heRBOS52p8pOfsmu5cjY5uK7MdQn6Cw3FY0$
> > Link: 
> > https://urldefense.com/v3/__https://www.esmt.com.tw/upload/pdf/ESMT/datasheets/EN25S64A(2SC).pdf__;!!CTRNKA9wMg0ARbw!j7E681Y4Vzt6S4aIsheiVdVOq9m8dv0YTHDU9h9Bd3fu83ASyITxt4cxou55heRBOS52p8pOfsmu5cjY5uK7MdQnfRLy1jE$
> > Signed-off-by: Weijie Gao <[email protected]>
> > ---
> > v6: removed SPI_NOR_QUAD_READ from incompatible flashes
> > v5: not changed
> > v3-v4: updated commit message
> > v2: not changed
> > ---
> >  drivers/mtd/spi/spi-nor-ids.c | 12 ++++++------
> >  1 file changed, 6 insertions(+), 6 deletions(-)
> > 
> > diff --git a/drivers/mtd/spi/spi-nor-ids.c b/drivers/mtd/spi/spi-
> > nor-ids.c
> > index c0fa98424aa..0dacb4abdbc 100644
> > --- a/drivers/mtd/spi/spi-nor-ids.c
> > +++ b/drivers/mtd/spi/spi-nor-ids.c
> > @@ -90,12 +90,12 @@ const struct flash_info spi_nor_ids[] = {
> >  #endif
> >  #ifdef CONFIG_SPI_FLASH_EON            /* EON */
> >         /* EON -- en25xxx */
> > -       { INFO("en25q80b",   0x1c3014, 0, 64 * 1024,   16, SECT_4K)
> > },
> > -       { INFO("en25q32b",   0x1c3016, 0, 64 * 1024,   64, 0) },
> > -       { INFO("en25q64",    0x1c3017, 0, 64 * 1024,  128, SECT_4K)
> > },
> > -       { INFO("en25q128b",  0x1c3018, 0, 64 * 1024,  256, 0) },
> > -       { INFO("en25qh128",  0x1c7018, 0, 64 * 1024,  256, 0) },
> > -       { INFO("en25s64",    0x1c3817, 0, 64 * 1024,  128, SECT_4K)
> > },
> > +       { INFO("en25q80b",   0x1c3014, 0, 64 * 1024,   16, SECT_4K
> > | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
> > +       { INFO("en25q32b",   0x1c3016, 0, 64 * 1024,   64, SECT_4K
> > | SPI_NOR_DUAL_READ) },
> > +       { INFO("en25q64",    0x1c3017, 0, 64 * 1024,  128, SECT_4K
> > | SPI_NOR_DUAL_READ) },
> > +       { INFO("en25q128b",  0x1c3018, 0, 64 * 1024,  256, SECT_4K
> > | SPI_NOR_DUAL_READ) },
> > +       { INFO("en25qh128",  0x1c7018, 0, 64 * 1024,  256, SECT_4K
> > | SPI_NOR_DUAL_READ) },
> > +       { INFO("en25s64",    0x1c3817, 0, 64 * 1024,  128, SECT_4K
> > | SPI_NOR_DUAL_READ) },
> 
> In our discussion in previous revision [1], only en25qh128 supports
> 1-1-4
> read and program, but you set QUAD_READ flag in en25q80b instead.
> Please fix.

I reserved this flag because I found a newer datasheet that claims it
supports the 6B opcode for 1-1-4 read:

https://www.novitronic.com/Datenbl%C3%A4tter/Aktive%20Komponenten/EN25Q80B%282C%29.pdf

As the EN25Q80B is EOL, I can't buy one for testing. I'll remove this
flag in next patch series.

> 
> Thanks,
> Takahiro
> 
> [1]
> 
https://patchwork.ozlabs.org/project/uboot/patch/64ce1a920dc067717de2b39d2e7a5098e6853aab.1781164951.git.weijie....@mediatek.com/
> 

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