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

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Date:   Sun, 12 Feb 2023 15:38:11 +0900
From:   Hector Martin <marcan@...can.st>
To:     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>
Cc:     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, Hector Martin <marcan@...can.st>,
        Arend van Spriel <arend.vanspriel@...adcom.com>
Subject: [PATCH v4 2/4] brcmfmac: pcie: Add IDs/properties for BCM4355

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>
---
 .../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