linux-kernel - Re: [PATCH v4 2/4] brcmfmac: pcie: Add IDs/properties for BCM4355

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Date:   Mon, 13 Feb 2023 16:44:09 +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,
        Arend van Spriel <arend.vanspriel@...adcom.com>
Subject: Re: [PATCH v4 2/4] brcmfmac: pcie: Add IDs/properties for BCM4355

On Sun, 12 Feb 2023 at 06:45, Hector Martin <marcan@...can.st> wrote:
>
> This chip is present on at least these Apple T2 Macs:
>
> * hawaii: MacBook Air 13" (Late 2018)
> * hawaii: MacBook Air 13" (True Tone, 2019)
>
> Users report seeing PCI revision ID 12 for this chip, which Arend
> reports should be revision C2, but Apple has the firmware tagged as
> revision C1. Assume the right cutoff point for firmware versions is
> revision ID 11 then, and leave older revisions using the non-versioned
> firmware filename (Apple only uses C1 firmware builds).
>
> 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    | 10 +++++++++-
>  .../wireless/broadcom/brcm80211/include/brcm_hw_ids.h  |  1 +
>  2 files changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
> index 96608174a123..7135f889907a 100644
> --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
> +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
> @@ -52,6 +52,7 @@ BRCMF_FW_DEF(43602, "brcmfmac43602-pcie");
>  BRCMF_FW_DEF(4350, "brcmfmac4350-pcie");
>  BRCMF_FW_DEF(4350C, "brcmfmac4350c2-pcie");
>  BRCMF_FW_CLM_DEF(4355, "brcmfmac4355-pcie");
> +BRCMF_FW_CLM_DEF(4355C1, "brcmfmac4355c1-pcie");
>  BRCMF_FW_CLM_DEF(4356, "brcmfmac4356-pcie");
>  BRCMF_FW_CLM_DEF(43570, "brcmfmac43570-pcie");
>  BRCMF_FW_DEF(4358, "brcmfmac4358-pcie");
> @@ -78,7 +79,8 @@ static const struct brcmf_firmware_mapping brcmf_pcie_fwnames[] = {
>         BRCMF_FW_ENTRY(BRCM_CC_4350_CHIP_ID, 0x000000FF, 4350C),
>         BRCMF_FW_ENTRY(BRCM_CC_4350_CHIP_ID, 0xFFFFFF00, 4350),
>         BRCMF_FW_ENTRY(BRCM_CC_43525_CHIP_ID, 0xFFFFFFF0, 4365C),
> -       BRCMF_FW_ENTRY(BRCM_CC_4355_CHIP_ID, 0xFFFFFFFF, 4355),
> +       BRCMF_FW_ENTRY(BRCM_CC_4355_CHIP_ID, 0x000007FF, 4355),
> +       BRCMF_FW_ENTRY(BRCM_CC_4355_CHIP_ID, 0xFFFFF800, 4355C1), /* rev ID 12/C2 seen */
>         BRCMF_FW_ENTRY(BRCM_CC_4356_CHIP_ID, 0xFFFFFFFF, 4356),
>         BRCMF_FW_ENTRY(BRCM_CC_43567_CHIP_ID, 0xFFFFFFFF, 43570),
>         BRCMF_FW_ENTRY(BRCM_CC_43569_CHIP_ID, 0xFFFFFFFF, 43570),
> @@ -1994,6 +1996,11 @@ static int brcmf_pcie_read_otp(struct brcmf_pciedev_info *devinfo)
>         int ret;
>
>         switch (devinfo->ci->chip) {
> +       case BRCM_CC_4355_CHIP_ID:
> +               coreid = BCMA_CORE_CHIPCOMMON;
> +               base = 0x8c0;
> +               words = 0xb2;
> +               break;
>         case BRCM_CC_4378_CHIP_ID:
>                 coreid = BCMA_CORE_GCI;
>                 base = 0x1120;
> @@ -2590,6 +2597,7 @@ static const struct pci_device_id brcmf_pcie_devid_table[] = {
>         BRCMF_PCIE_DEVICE(BRCM_PCIE_4350_DEVICE_ID, WCC),
>         BRCMF_PCIE_DEVICE_SUB(0x4355, BRCM_PCIE_VENDOR_ID_BROADCOM, 0x4355, WCC),
>         BRCMF_PCIE_DEVICE(BRCM_PCIE_4354_RAW_DEVICE_ID, WCC),
> +       BRCMF_PCIE_DEVICE(BRCM_PCIE_4355_DEVICE_ID, WCC),
>         BRCMF_PCIE_DEVICE(BRCM_PCIE_4356_DEVICE_ID, WCC),
>         BRCMF_PCIE_DEVICE(BRCM_PCIE_43567_DEVICE_ID, WCC),
>         BRCMF_PCIE_DEVICE(BRCM_PCIE_43570_DEVICE_ID, WCC),
> diff --git a/drivers/net/wireless/broadcom/brcm80211/include/brcm_hw_ids.h b/drivers/net/wireless/broadcom/brcm80211/include/brcm_hw_ids.h
> index 28b6cf8ff286..6e27e3966655 100644
> --- a/drivers/net/wireless/broadcom/brcm80211/include/brcm_hw_ids.h
> +++ b/drivers/net/wireless/broadcom/brcm80211/include/brcm_hw_ids.h
> @@ -72,6 +72,7 @@
>  #define BRCM_PCIE_4350_DEVICE_ID       0x43a3
>  #define BRCM_PCIE_4354_DEVICE_ID       0x43df
>  #define BRCM_PCIE_4354_RAW_DEVICE_ID   0x4354
> +#define BRCM_PCIE_4355_DEVICE_ID       0x43dc
>  #define BRCM_PCIE_4356_DEVICE_ID       0x43ec
>  #define BRCM_PCIE_43567_DEVICE_ID      0x43d3
>  #define BRCM_PCIE_43570_DEVICE_ID      0x43d9
> --
> 2.35.1
>
>