linux-kernel - Re: [PATCH v4 4/4] brcmfmac: pcie: Perform correct BCM4364 firmware selection

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Date:   Mon, 13 Feb 2023 16:44:55 +0000
From:   Eric Curtin <ecurtin@...hat.com>
To:     Hector Martin <marcan@...can.st>
Cc:     Arend van Spriel <aspriel@...il.com>,
        Franky Lin <franky.lin@...adcom.com>,
        Hante Meuleman <hante.meuleman@...adcom.com>,
        Kalle Valo <kvalo@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Alexander Prutskov <alep@...ress.com>,
        Ian Lin <ian.lin@...ineon.com>,
        Joseph chuang <jiac@...ress.com>,
        Sven Peter <sven@...npeter.dev>,
        Alyssa Rosenzweig <alyssa@...enzweig.io>,
        Aditya Garg <gargaditya08@...e.com>,
        Jonas Gorski <jonas.gorski@...il.com>, asahi@...ts.linux.dev,
        linux-wireless@...r.kernel.org,
        brcm80211-dev-list.pdl@...adcom.com,
        SHA-cyfmac-dev-list@...ineon.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Linus Walleij <linus.walleij@...aro.org>,
        Arend van Spriel <arend.vanspriel@...adcom.com>
Subject: Re: [PATCH v4 4/4] brcmfmac: pcie: Perform correct BCM4364 firmware selection

On Sun, 12 Feb 2023 at 06:46, Hector Martin <marcan@...can.st> wrote:
>
> This chip exists in two revisions (B2=r3 and B3=r4) on different
> platforms, and was added without regard to doing proper firmware
> selection or differentiating between them. Fix this to have proper
> per-revision firmwares and support Apple NVRAM selection.
>
> Revision B2 is present on at least these Apple T2 Macs:
>
> kauai:    MacBook Pro 15" (Touch/2018-2019)
> maui:     MacBook Pro 13" (Touch/2018-2019)
> lanai:    Mac mini (Late 2018)
> ekans:    iMac Pro 27" (5K, Late 2017)
>
> And these non-T2 Macs:
>
> nihau:    iMac 27" (5K, 2019)
>
> Revision B3 is present on at least these Apple T2 Macs:
>
> bali:     MacBook Pro 16" (2019)
> trinidad: MacBook Pro 13" (2020, 4 TB3)
> borneo:   MacBook Pro 16" (2019, 5600M)
> kahana:   Mac Pro (2019)
> kahana:   Mac Pro (2019, Rack)
> hanauma:  iMac 27" (5K, 2020)
> kure:     iMac 27" (5K, 2020, 5700/XT)
>
> Also fix the firmware interface for 4364, from BCA to WCC.
>
> Fixes: 24f0bd136264 ("brcmfmac: add the BRCM 4364 found in MacBook Pro 15,2")
> Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
> Reviewed-by: Arend van Spriel <arend.vanspriel@...adcom.com>
> Signed-off-by: Hector Martin <marcan@...can.st>

Reviewed-by: Eric Curtin <ecurtin@...hat.com>

Is mise le meas/Regards,

Eric Curtin

> ---
>  .../net/wireless/broadcom/brcm80211/brcmfmac/pcie.c | 13 ++++++++++---
>  1 file changed, 10 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
> index d54394885af7..f320b6ce8bff 100644
> --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
> +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
> @@ -57,7 +57,8 @@ BRCMF_FW_CLM_DEF(4356, "brcmfmac4356-pcie");
>  BRCMF_FW_CLM_DEF(43570, "brcmfmac43570-pcie");
>  BRCMF_FW_DEF(4358, "brcmfmac4358-pcie");
>  BRCMF_FW_DEF(4359, "brcmfmac4359-pcie");
> -BRCMF_FW_DEF(4364, "brcmfmac4364-pcie");
> +BRCMF_FW_CLM_DEF(4364B2, "brcmfmac4364b2-pcie");
> +BRCMF_FW_CLM_DEF(4364B3, "brcmfmac4364b3-pcie");
>  BRCMF_FW_DEF(4365B, "brcmfmac4365b-pcie");
>  BRCMF_FW_DEF(4365C, "brcmfmac4365c-pcie");
>  BRCMF_FW_DEF(4366B, "brcmfmac4366b-pcie");
> @@ -88,7 +89,8 @@ static const struct brcmf_firmware_mapping brcmf_pcie_fwnames[] = {
>         BRCMF_FW_ENTRY(BRCM_CC_43570_CHIP_ID, 0xFFFFFFFF, 43570),
>         BRCMF_FW_ENTRY(BRCM_CC_4358_CHIP_ID, 0xFFFFFFFF, 4358),
>         BRCMF_FW_ENTRY(BRCM_CC_4359_CHIP_ID, 0xFFFFFFFF, 4359),
> -       BRCMF_FW_ENTRY(BRCM_CC_4364_CHIP_ID, 0xFFFFFFFF, 4364),
> +       BRCMF_FW_ENTRY(BRCM_CC_4364_CHIP_ID, 0x0000000F, 4364B2), /* 3 */
> +       BRCMF_FW_ENTRY(BRCM_CC_4364_CHIP_ID, 0xFFFFFFF0, 4364B3), /* 4 */
>         BRCMF_FW_ENTRY(BRCM_CC_4365_CHIP_ID, 0x0000000F, 4365B),
>         BRCMF_FW_ENTRY(BRCM_CC_4365_CHIP_ID, 0xFFFFFFF0, 4365C),
>         BRCMF_FW_ENTRY(BRCM_CC_4366_CHIP_ID, 0x0000000F, 4366B),
> @@ -2003,6 +2005,11 @@ static int brcmf_pcie_read_otp(struct brcmf_pciedev_info *devinfo)
>                 base = 0x8c0;
>                 words = 0xb2;
>                 break;
> +       case BRCM_CC_4364_CHIP_ID:
> +               coreid = BCMA_CORE_CHIPCOMMON;
> +               base = 0x8c0;
> +               words = 0x1a0;
> +               break;
>         case BRCM_CC_4377_CHIP_ID:
>         case BRCM_CC_4378_CHIP_ID:
>                 coreid = BCMA_CORE_GCI;
> @@ -2611,7 +2618,7 @@ static const struct pci_device_id brcmf_pcie_devid_table[] = {
>         BRCMF_PCIE_DEVICE(BRCM_PCIE_43602_2G_DEVICE_ID, WCC),
>         BRCMF_PCIE_DEVICE(BRCM_PCIE_43602_5G_DEVICE_ID, WCC),
>         BRCMF_PCIE_DEVICE(BRCM_PCIE_43602_RAW_DEVICE_ID, WCC),
> -       BRCMF_PCIE_DEVICE(BRCM_PCIE_4364_DEVICE_ID, BCA),
> +       BRCMF_PCIE_DEVICE(BRCM_PCIE_4364_DEVICE_ID, WCC),
>         BRCMF_PCIE_DEVICE(BRCM_PCIE_4365_DEVICE_ID, BCA),
>         BRCMF_PCIE_DEVICE(BRCM_PCIE_4365_2G_DEVICE_ID, BCA),
>         BRCMF_PCIE_DEVICE(BRCM_PCIE_4365_5G_DEVICE_ID, BCA),
> --
> 2.35.1
>
>