From: Marek Vasut <marex@denx.de>
To: Pratyush Yadav <p.yadav@ti.com>
Cc: u-boot@lists.denx.de, Jagan Teki <jagan@amarulasolutions.com>,
Vignesh R <vigneshr@ti.com>
Subject: Re: [PATCH] mtd: sf: Set SF parameters as env variables
Date: Sun, 28 Nov 2021 22:56:24 +0100 [thread overview]
Message-ID: <c4fa546a-34fd-0032-73c7-695b94eaf255@denx.de> (raw)
In-Reply-To: <2c3df1fb-31ca-f996-9a7d-41befa9bd6fa@denx.de>
On 10/7/21 2:46 PM, Marek Vasut wrote:
> On 10/7/21 2:40 PM, Pratyush Yadav wrote:
>> On 23/09/21 10:00PM, Marek Vasut wrote:
>>> On 9/23/21 8:53 PM, Pratyush Yadav wrote:
>>>> On 14/09/21 05:28AM, Marek Vasut wrote:
>>>>> Set the SF page size, erase block size and total size as an
>>>>> environment
>>>>> variable after "sf probe". This lets us discern boards with multiple
>>>>> distinct SPI flash options and also e.g. set mtdparts accordingly.
>>>>
>>>> I don't quite follow the rationale for making these environment
>>>> variables. Wouldn't you be better off finding this info out via mtd or
>>>> sf command?
>>>
>>> I need to use that info in a script, that's why these env vars.
>>
>> Ok. Honestly, it doesn't feel quite right to me.
>>
>> I haven't played with U-Boot's shell too much but is there no way to
>> assign variables from command outputs?
>
> Not that I know of.
>
>> For example, can we do something
>> like `foo=$(cat a.txt)`? If that is possible, maybe add some new
>> subcommands to "sf" that return this information?
>
> What you would want to have is per-device runtime properties, kind-of
> like reduced sysfs, which would need VFS in U-Boot, and we do not have
> that yet.
Are there any news on this patch ?
next prev parent reply other threads:[~2021-11-28 21:56 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-14 3:28 [PATCH] mtd: sf: Set SF parameters as env variables Marek Vasut
2021-09-23 18:53 ` Pratyush Yadav
2021-09-23 20:00 ` Marek Vasut
2021-10-07 12:40 ` Pratyush Yadav
2021-10-07 12:46 ` Marek Vasut
2021-11-28 21:56 ` Marek Vasut [this message]
2021-12-02 9:14 ` Pratyush Yadav
2021-12-02 16:41 ` Sean Anderson
2021-12-02 5:47 ` Jagan Teki
2021-12-02 5:49 ` Marek Vasut
2021-12-02 5:57 ` Jagan Teki
2021-12-02 6:03 ` Marek Vasut
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