linux-kernel - Re: [PATCH 2/2] mtd: spi-nor: macronix: Add support for Macronix NOR Flash

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Message-ID: <811f5b9d7b2842a3e1293ac6a0bb3b70@kernel.org>
Date: Fri, 07 Feb 2025 09:39:34 +0100
From: Michael Walle <mwalle@...nel.org>
To: Cheng Ming Lin <linchengming884@...il.com>
Cc: tudor.ambarus@...aro.org, pratyush@...nel.org,
 miquel.raynal@...tlin.com, richard@....at, vigneshr@...com,
 linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
 alvinzhou@...c.com.tw, leoyu@...c.com.tw, Cheng Ming Lin
 <chengminglin@...c.com.tw>
Subject: Re: [PATCH 2/2] mtd: spi-nor: macronix: Add support for Macronix NOR
 Flash

Hi Cheng,

> From: Cheng Ming Lin <chengminglin@...c.com.tw>
> 
> Due to incorrect values in the 4-BAIT table for these two flash IDs,
> it is necessary to add these two flash IDs with fixups.

What's the part number of these flashes?

> --- a/drivers/mtd/spi-nor/macronix.c
> +++ b/drivers/mtd/spi-nor/macronix.c
> @@ -127,6 +127,9 @@ static const struct flash_info macronix_nor_parts[] 
> = {
>  		.size = SZ_128M,
>  		.no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
>  		.fixups = &macronix_qpp4b_fixups,
> +	}, {

Although we don't have .name anymore, a comment like

/* <partname> */

is recommended.

> +		.id = SNOR_ID(0xc2, 0x20, 0x1c),
> +		.fixups = &macronix_qpp4b_fixups,
>  	}, {
>  		.id = SNOR_ID(0xc2, 0x23, 0x14),
>  		.name = "mx25v8035f",
> @@ -182,6 +185,9 @@ static const struct flash_info macronix_nor_parts[] 
> = {
>  		.no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
>  		.fixup_flags = SPI_NOR_4B_OPCODES,
>  		.fixups = &macronix_qpp4b_fixups,
> +	}, {

same same

> +		.id = SNOR_ID(0xc2, 0x25, 0x3b),
> +		.fixups = &macronix_qpp4b_fixups,
>  	}, {
>  		.id = SNOR_ID(0xc2, 0x25, 0x3c),
>  		.name = "mx66u2g45g",

Thanks,
-michael