[PATCH] mtd: cfi: add fixups to support MT28FW02GBBA1HPC

[PATCH] mtd: cfi: add fixups to support MT28FW02GBBA1HPC

[Andreas Oetken]

Apply existing fixups to MT28FW02GBBA1HPC from:
Commit 0a8e98305f63deaf0a799d5cf5532cc83af035d1 ("mtd: cfi_cmdset_0002:
Use chip_ready() for write on S29GL064N")
Commit 0fe3ede7941dfcd6fd540fc2b086453d3ee8f236 ("mtd: cfi: Add early
fixup for S70GL02GS")

Signed-off-by: Andreas Oetken <ennoerlangen@gmail.com>
---
 drivers/mtd/chips/cfi_cmdset_0002.c |  4 +++-
 drivers/mtd/chips/cfi_probe.c       | 15 ++++++++++++++-
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index 9bd65f3f805c..4e0bc2a1abb5 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -441,8 +441,10 @@ static void fixup_quirks(struct mtd_info *mtd)
 	struct map_info *map = mtd->priv;
 	struct cfi_private *cfi = map->fldrv_priv;
 
-	if (cfi->mfr == CFI_MFR_AMD && cfi->id == 0x0c01)
+	if (cfi->mfr == CFI_MFR_AMD && cfi->id == 0x0c01 ||
+	    cfi->mfr == CFI_MFR_INTEL && cfi->id == 0x227e) /*MT28FW02GBBA1HPC*/
 		cfi->quirks |= CFI_QUIRK_DQ_TRUE_DATA;
+
 }
 
 /* Used to fix CFI-Tables of chips without Extended Query Tables */
diff --git a/drivers/mtd/chips/cfi_probe.c b/drivers/mtd/chips/cfi_probe.c
index cf426956454c..102c1ffb9aad 100644
--- a/drivers/mtd/chips/cfi_probe.c
+++ b/drivers/mtd/chips/cfi_probe.c
@@ -186,9 +186,22 @@ static void fixup_s70gl02gs_chips(struct cfi_private *cfi)
 	pr_warn("Bad S70GL02GS CFI data; adjust to detect 2 chips\n");
 }
 
+
+static void fixup_mt28fw02gbba1hpc_chips(struct cfi_private *cfi)
+{
+	/*
+	 * MT28FW02GBBA1HPC flash reports a single 256 MiB chip, but is really made up
+	 * of two 128 MiB chips with 1024 sectors each.
+	 */
+	cfi->cfiq->DevSize = 27;
+	cfi->cfiq->EraseRegionInfo[0] = 0x20003ff;
+	pr_warn("Bad MT28FW02GBBA1HPC CFI data; adjust to detect 2 chips\n");
+}
+
 static const struct cfi_early_fixup cfi_early_fixup_table[] = {
 	{ CFI_MFR_AMD, 0x4801, fixup_s70gl02gs_chips },
-	{ },
+	{ CFI_MFR_INTEL, 0x227e, fixup_mt28fw02gbba1hpc_chips},
+	{ }
 };
 
 static int __xipram cfi_chip_setup(struct map_info *map,
-- 
2.30.2


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Re: [PATCH] mtd: cfi: add fixups to support MT28FW02GBBA1HPC

[Greg Kroah-Hartman]

On Wed, Oct 19, 2022 at 05:49:24PM +0200, Andreas Oetken wrote:
> Apply existing fixups to MT28FW02GBBA1HPC from:
> Commit 0a8e98305f63deaf0a799d5cf5532cc83af035d1 ("mtd: cfi_cmdset_0002:
> Use chip_ready() for write on S29GL064N")
> Commit 0fe3ede7941dfcd6fd540fc2b086453d3ee8f236 ("mtd: cfi: Add early
> fixup for S70GL02GS")

That's not the proper way to reference commits in changelog texts.  No
need to use the full sha1.  See the documentation for more details.

Also, this text means nothing.  Please spell out what you are doing and
why you are doing it.  as-is it doesn't really make any sense.

thanks,

greg k-h

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Re: [PATCH] mtd: cfi: add fixups to support MT28FW02GBBA1HPC

[Miquel Raynal]

Hi Andreas,

gregkh@linuxfoundation.org wrote on Wed, 19 Oct 2022 17:58:35 +0200:

> On Wed, Oct 19, 2022 at 05:49:24PM +0200, Andreas Oetken wrote:
> > Apply existing fixups to MT28FW02GBBA1HPC from:
> > Commit 0a8e98305f63deaf0a799d5cf5532cc83af035d1 ("mtd: cfi_cmdset_0002:
> > Use chip_ready() for write on S29GL064N")
> > Commit 0fe3ede7941dfcd6fd540fc2b086453d3ee8f236 ("mtd: cfi: Add early
> > fixup for S70GL02GS")  
> 
> That's not the proper way to reference commits in changelog texts.  No
> need to use the full sha1.  See the documentation for more details.
> 
> Also, this text means nothing.  Please spell out what you are doing and
> why you are doing it.  as-is it doesn't really make any sense.

Indeed. And the title prefix is still wrong :)
git log --oneline -- drivers/mtd/chips/cfi_cmdset* should help.

Thanks,
Miquèl

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Re: [PATCH] mtd: cfi: add fixups to support MT28FW02GBBA1HPC

[Tokunori Ikegami]

Hi,

On 2022/10/20 0:49, Andreas Oetken wrote:
> Apply existing fixups to MT28FW02GBBA1HPC from:
> Commit 0a8e98305f63deaf0a799d5cf5532cc83af035d1 ("mtd: cfi_cmdset_0002:
> Use chip_ready() for write on S29GL064N")
> Commit 0fe3ede7941dfcd6fd540fc2b086453d3ee8f236 ("mtd: cfi: Add early
> fixup for S70GL02GS")
>
> Signed-off-by: Andreas Oetken <ennoerlangen@gmail.com>
> ---
>   drivers/mtd/chips/cfi_cmdset_0002.c |  4 +++-
>   drivers/mtd/chips/cfi_probe.c       | 15 ++++++++++++++-
>   2 files changed, 17 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
> index 9bd65f3f805c..4e0bc2a1abb5 100644
> --- a/drivers/mtd/chips/cfi_cmdset_0002.c
> +++ b/drivers/mtd/chips/cfi_cmdset_0002.c
> @@ -441,8 +441,10 @@ static void fixup_quirks(struct mtd_info *mtd)
>   	struct map_info *map = mtd->priv;
>   	struct cfi_private *cfi = map->fldrv_priv;
>   
> -	if (cfi->mfr == CFI_MFR_AMD && cfi->id == 0x0c01)
> +	if (cfi->mfr == CFI_MFR_AMD && cfi->id == 0x0c01 ||
> +	    cfi->mfr == CFI_MFR_INTEL && cfi->id == 0x227e) /*MT28FW02GBBA1HPC*/

This patch is not based on the mainline code since implemented as below 
on mainline.
 > #define S29GL064N_MN12        0x0c01
 > ...
 >     if (cfi->mfr == CFI_MFR_AMD && cfi->id == S29GL064N_MN12)

>   		cfi->quirks |= CFI_QUIRK_DQ_TRUE_DATA;
> +
The empty line added is not necessary to add I think.
>   }
>   
>   /* Used to fix CFI-Tables of chips without Extended Query Tables */
> diff --git a/drivers/mtd/chips/cfi_probe.c b/drivers/mtd/chips/cfi_probe.c
> index cf426956454c..102c1ffb9aad 100644
> --- a/drivers/mtd/chips/cfi_probe.c
> +++ b/drivers/mtd/chips/cfi_probe.c
> @@ -186,9 +186,22 @@ static void fixup_s70gl02gs_chips(struct cfi_private *cfi)
>   	pr_warn("Bad S70GL02GS CFI data; adjust to detect 2 chips\n");
>   }
>   
> +
> +static void fixup_mt28fw02gbba1hpc_chips(struct cfi_private *cfi)
> +{
> +	/*
> +	 * MT28FW02GBBA1HPC flash reports a single 256 MiB chip, but is really made up
> +	 * of two 128 MiB chips with 1024 sectors each.
> +	 */
> +	cfi->cfiq->DevSize = 27;
> +	cfi->cfiq->EraseRegionInfo[0] = 0x20003ff;
> +	pr_warn("Bad MT28FW02GBBA1HPC CFI data; adjust to detect 2 chips\n");
> +}
> +
>   static const struct cfi_early_fixup cfi_early_fixup_table[] = {
>   	{ CFI_MFR_AMD, 0x4801, fixup_s70gl02gs_chips },
> -	{ },
> +	{ CFI_MFR_INTEL, 0x227e, fixup_mt28fw02gbba1hpc_chips},
A space should be added between "fixup_mt28fw02gbba1hpc_chips" and "}".
> +	{ }
>   };
>   
>   static int __xipram cfi_chip_setup(struct map_info *map,

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