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Date:   Wed, 23 Nov 2022 17:54:00 +0000
From:   Paul Cercueil <paul@crapouillou.net>
Subject: Re: Please bump brcm/bcm4330-sdio.bin firmware
To:     Arend van Spriel <arend.vanspriel@broadcom.com>
Cc:     linux-firmware@kernel.org, linux-wireless@vger.kernel.org,
        brcm80211-dev-list.pdl@broadcom.com,
        SHA-cyfmac-dev-list@infineon.com, linux-mips@vger.kernel.org,
        Arend van Spriel <aspriel@gmail.com>,
        Franky Lin <franky.lin@broadcom.com>,
        Hante Meuleman <hante.meuleman@broadcom.com>,
        Artur Rojek <contact@artur-rojek.eu>
Message-Id: <02BTLR.2900VTVOISJZ@crapouillou.net>
In-Reply-To: <fa5b46e2-f13e-547e-8df9-70c65f191957@broadcom.com>
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        <fa5b46e2-f13e-547e-8df9-70c65f191957@broadcom.com>
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Hi Arend,

Le mar. 22 nov. 2022 =E0 20:35:41 +0100, Arend van Spriel=20
<arend.vanspriel@broadcom.com> a =E9crit :
> On 11/22/2022 12:06 AM, Paul Cercueil wrote:
>> Hello,
>>=20
>> As a week-end project I got the BCM4330 chip to work with the=20
>> mainline =7FLinux kernel on the MIPS CI20 board. One of the problems I=20
>> was facing =7Fwas the firmware crashing, resulting in timeout errors=20
>> in the brcmfmac =7Fdriver.
>>=20
>> It turns out the bcm4330-sdio.bin firmware that's currently in=20
>> =7Flinux-firmware is not the latest one. Running "strings" on the blob=20
>> =7Fpoints out to a version 5.90.125.104 dated 2011-10-25. The firmware=20
>> that =7Foriginally came on the CI20 is version 5.90.195.26 dated=20
>> 2012-05-09, and =7Fthe version found in Android [1] is 5.90.195.114=20
>> dated 2013-01-23. Only =7Fthe last two will work on the CI20 board.
>>=20
>> My question then, could we bump the firmware available in=20
>> linux-firmware =7Fto the latest version? Or is there a valid reason=20
>> why an older firmware =7Fis kept in the tree?
>=20
> We "Broadcom" could. The linux-firmware repo provides all firmware=20
> that linux distro can freely redistribute. The license info is listed=20
> in the README in the repo as are the applicable firmware license=20
> documents. So releasing the firmware to linux-firmware under the=20
> given license can only be done by anyone owning it, not by people=20
> licensed to use it.

I actually did not know this.

> The bcm4330 chip was one of the first chips that brcmfmac supported=20
> and Broadcom has EOL-ed that chip a long time ago hence no newer=20
> firmware was considered for release to linux-firmware. In the past we=20
> often re-released what was available in Android so we probably can do=20
> that again for this and other chips.

This would be great.

Cheers,
-Paul