From: <Tudor.Ambarus@microchip.com>
To: <mail@david-bauer.net>, <linux-mtd@lists.infradead.org>,
<shuhao.mai.1990@gmail.com>
Cc: <miquel.raynal@bootlin.com>, <richard@nod.at>, <vigneshr@ti.com>
Subject: Re: [PATCH] mtd: spi-nor: add support for Winbond W25Q512JV
Date: Tue, 9 Mar 2021 07:53:59 +0000 [thread overview]
Message-ID: <8833cce1-a843-9b56-53ed-e9a2fd42d990@microchip.com> (raw)
In-Reply-To: <e9626369-dc44-8f64-606b-88098157bc7a@david-bauer.net>
On 3/8/21 8:03 PM, David Bauer wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> Hi Tudor,
>
> On 3/8/21 6:50 AM, Tudor.Ambarus@microchip.com wrote:
>> On 2/13/21 5:10 PM, David Bauer wrote:
>>> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>>>
>>> The Winbond W25Q512JV is a 512mb SPI-NOR chip. It supports 4K
>>> sectors as well as block protection and Dual-/Quad-read.
>>>
>>> Tested on: Ubiquiti UniFi 6 LR
>>>
>>> Signed-off-by: David Bauer <mail@david-bauer.net>
>>
>> David, I'll take Shuhao's patch because he sent it first:
>> https://patchwork.ozlabs.org/project/linux-mtd/patch/20210208075303.4200-1-shuhao.mai.1990@gmail.com/
>
> Fine with me, I have not found this patch :)
>
>>
>> Would you make an incremental patch on top op Shuhao's, to add the
>> locking support?
>
> Sure, It's necessary for the board (UniFi 6 LR), as the bootloader locks the flash on boot.
Is it necessary to unlock the flash at boot time?
You can unlock the flash from user-space, using mtd-utils.
Have you tried to lock/unlock portions of the flash using mtd-utils,
and check if what was locked corresponds to what the datasheet indicates?
>
> I'll send a new patch for the lock support.
>
Great, thanks!
ta
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next prev parent reply other threads:[~2021-03-09 7:55 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-13 15:10 [PATCH] mtd: spi-nor: add support for Winbond W25Q512JV David Bauer
2021-03-08 5:50 ` Tudor.Ambarus
2021-03-08 18:03 ` David Bauer
2021-03-09 7:53 ` Tudor.Ambarus [this message]
2021-03-10 7:41 ` Shuhao Mai
2021-04-16 19:24 ` David Bauer
2021-05-05 2:25 ` Shuhao Mai
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