linux-kernel - Re: [PATCH] mtd: spi-nor: winbond: add support for W25Q512NW-IQ/IN

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Date:   Thu, 14 Jul 2022 07:30:21 -0700
From:   Jae Hyun Yoo <quic_jaehyoo@...cinc.com>
To:     Michael Walle <michael@...le.cc>
CC:     <clg@...d.org>, <linux-kernel@...r.kernel.org>,
        <linux-mtd@...ts.infradead.org>, <p.yadav@...com>,
        <quic_ggregory@...cinc.com>, <quic_jiles@...cinc.com>,
        <tudor.ambarus@...rochip.com>
Subject: Re: [PATCH] mtd: spi-nor: winbond: add support for W25Q512NW-IQ/IN

On 7/14/2022 7:21 AM, Michael Walle wrote:
> Am 2022-07-14 16:16, schrieb Michael Walle:
>> Am 2022-07-14 15:47, schrieb Jae Hyun Yoo:
>>> On 7/14/2022 12:41 AM, Michael Walle wrote:
>>>> What does "doesn't boot at all" mean? Are there any kernel startup
>>>> messages?
>>>
>>> I'm sharing the error messages below.
>>
>> Thanks.
>>
>>> [    0.748594] spi-nor spi0.0: w25q512nwq (65536 Kbytes)
>>> [    0.865216] spi-aspeed-smc 1e620000.spi: CE0 read buswidth:4 
>>> [0x406c0741]
>>> [    0.872833] ------------[ cut here ]------------
>>> [    0.877984] WARNING: CPU: 1 PID: 1 at drivers/mtd/mtdcore.c:583
>>> add_mtd_device+0x28c/0x53c
>>> [    0.887237] CPU: 1 PID: 1 Comm: swapper/0 Not tainted
>>> 5.15.43-AUTOINC-dirty-23801a6 #1
>>
>> Could you please try it on the latest (vanilla) linux-next?
> 
> or spi-nor/next [1] as there are quite a lot of changes. The
> patches shall be based on that.

Okay. Let me try that. I tested it using 5.15.43 with back-ported
spi-nor patches from the latest. I'll back-port more changes from
the spi-nor/next and will test the INFO(0xef6020, 0, 0, 0) setting
again.

-Jae

> -michael
> 
> [1] 
> git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git#spi-nor/next