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Subject: Re: [PATCH RFC 1/4] brcmfmac: use separate firmware for 43430
 revision 4
To:     Rob Herring <robh+dt@kernel.org>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Nicolas Saenz Julienne <nsaenz@kernel.org>,
        Arend van Spriel <aspriel@gmail.com>,
        Franky Lin <franky.lin@broadcom.com>,
        Hante Meuleman <hante.meuleman@broadcom.com>,
        Chi-hsien Lin <chi-hsien.lin@infineon.com>,
        Wright Feng <wright.feng@infineon.com>,
        Chung-hsien Hsu <chung-hsien.hsu@infineon.com>,
        Kalle Valo <kvalo@kernel.org>
Cc:     Ray Jui <rjui@broadcom.com>, Scott Branden <sbranden@broadcom.com>,
        bcm-kernel-feedback-list@broadcom.com,
        Arnd Bergmann <arnd@arndb.de>, Olof Johansson <olof@lixom.net>,
        Phil Elwell <phil@raspberrypi.com>, devicetree@vger.kernel.org,
        soc@kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-wireless@vger.kernel.org,
        brcm80211-dev-list.pdl@broadcom.com,
        linux-rpi-kernel@lists.infradead.org
References: <1641068812-5851-1-git-send-email-stefan.wahren@i2se.com>
 <1641068812-5851-2-git-send-email-stefan.wahren@i2se.com>
From:   Stefan Wahren <stefan.wahren@i2se.com>
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Message-ID: <8ed4450d-85d9-c69b-761a-7695b3f1bbb3@i2se.com>
Date:   Sat, 22 Jan 2022 13:35:47 +0100
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In-Reply-To: <1641068812-5851-2-git-send-email-stefan.wahren@i2se.com>
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Am 01.01.22 um 21:26 schrieb Stefan Wahren:
> A separate firmware is needed, for Broadcom 43430 revision 4. This
> chip can be found on e.g. certain revisions of Raspberry Pi Zero 2 W.
> Original firmware file from IC vendor is named 'brcmfmac43436-sdio.bin',
> but brcmfmac and also btbcm drivers report chip id 43430, so requested
> firmware file name is 'brcmfmac43430c0-sdio.bin' in line with other
> 43430 revisions.
>
> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
> ---
>
> Hi,
> i'm not sure about all these mappings. All i can say is that the wifi
> interface of the RPi Zero 2 cames up with this patch.
gentle ping (yes, i'm aware of the merge window)
>
>  drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
> index 8effeb7..c79bd47 100644
> --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
> +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
> @@ -618,6 +618,7 @@ BRCMF_FW_DEF(43430A0, "brcmfmac43430a0-sdio");
>  /* Note the names are not postfixed with a1 for backward compatibility */
>  BRCMF_FW_CLM_DEF(43430A1, "brcmfmac43430-sdio");
>  BRCMF_FW_DEF(43430B0, "brcmfmac43430b0-sdio");
> +BRCMF_FW_CLM_DEF(43430C0, "brcmfmac43430c0-sdio");
>  BRCMF_FW_CLM_DEF(43455, "brcmfmac43455-sdio");
>  BRCMF_FW_DEF(43456, "brcmfmac43456-sdio");
>  BRCMF_FW_CLM_DEF(4354, "brcmfmac4354-sdio");
> @@ -649,7 +650,8 @@ static const struct brcmf_firmware_mapping brcmf_sdio_fwnames[] = {
>  	BRCMF_FW_ENTRY(BRCM_CC_4339_CHIP_ID, 0xFFFFFFFF, 4339),
>  	BRCMF_FW_ENTRY(BRCM_CC_43430_CHIP_ID, 0x00000001, 43430A0),
>  	BRCMF_FW_ENTRY(BRCM_CC_43430_CHIP_ID, 0x00000002, 43430A1),
> -	BRCMF_FW_ENTRY(BRCM_CC_43430_CHIP_ID, 0xFFFFFFFC, 43430B0),
> +	BRCMF_FW_ENTRY(BRCM_CC_43430_CHIP_ID, 0x00000004, 43430C0),
> +	BRCMF_FW_ENTRY(BRCM_CC_43430_CHIP_ID, 0xFFFFFFF8, 43430B0),
>  	BRCMF_FW_ENTRY(BRCM_CC_4345_CHIP_ID, 0x00000200, 43456),
>  	BRCMF_FW_ENTRY(BRCM_CC_4345_CHIP_ID, 0xFFFFFDC0, 43455),
>  	BRCMF_FW_ENTRY(BRCM_CC_4354_CHIP_ID, 0xFFFFFFFF, 4354),