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Re: SparkLAN WNFB-265AXI (AP6275P) / bcm43752 pcie on mainline brcmfmac

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On January 12, 2024 11:46:41 AM Marcel Ziswiler <marcel.ziswiler@xxxxxxxxxxx> wrote:

Hi guys

I stumbled over this thread from a little over a year ago [1].

I lately tried my take at this, however, initially even on latest linux-next it did not even recognise my card.

0000:01:00.0 Network controller: Broadcom Inc. and subsidiaries Device 449d (rev 02)

Once I added that PCI device ID to drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c the driver at least
picked it up:

[   27.712436] brcmfmac 0000:01:00.0: enabling device (0000 -> 0002)
[   27.826371] brcmfmac 0000:01:00.0: brcmf_pcie_probe: failed to parse OTP
[   27.833126] brcmfmac: brcmf_pcie_probe: failed 14e4:449d
[   27.838498] brcmfmac: probe of 0000:01:00.0 failed with error -22

Looks like it needs more information but I am unsure to what exactly to add where. Last I got the following
(git diff at the very end):

[  412.947747] brcmfmac 0000:01:00.0: enabling device (0000 -> 0002)
[ 413.059831] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43752-pcie for chip BCM43752/2 [ 413.096587] brcmfmac 0000:01:00.0: Direct firmware load for brcm/brcmfmac43752-pcie.txcap_blob failed with
error -2
[ 419.211343] brcmfmac 0000:01:00.0: brcmf_pcie_download_fw_nvram: FW failed to initialize
[  419.219481] brcmfmac 0000:01:00.0: brcmf_pcie_setup: Dongle setup failed
[  419.226214] ieee80211 phy0: brcmf_fw_crashed: Firmware has halted or crashed

Not sure what exact firmware I would need to use. From SparkLAN I got the following:

Archive:  FW_AP6275P_101_v2.zip
 Length      Date    Time    Name
---------  ---------- -----   ----
   80602  07-01-2021 15:01   FW_AP6275P_101_v2/BCM4362A2_001.003.006.1012.1017.hcd
   30993  11-12-2021 20:16   FW_AP6275P_101_v2/clm_bcm43752a2_pcie_ag.blob
  936074  07-13-2022 14:28   FW_AP6275P_101_v2/fw_bcm43752a2_pcie_ag.bin
    7458  01-10-2022 12:11   FW_AP6275P_101_v2/nvram_ap6275p.txt
    7808  08-30-2022 15:53   FW_AP6275P_101_v2/nvram_ap6275p_m2.txt
    8576  02-25-2021 14:51   FW_AP6275P_101_v2/nvram_ap6275p_mp.txt
     673  04-21-2023 16:32   FW_AP6275P_101_v2/ReadMe.txt
---------                     -------
 1072184                     7 files

Did anybody ever progress on getting this to work?

Any help would be much appreciated.

I assume you use the .bin and .blob already. Which n ram you need I don't know. Does the ReadMe have any clues on that?

Cypress/Infineon added 43752 SDIO support so I am not sure if your patch is correct in marking it as WCC chip. Can you run strings command on firmware file, ie.:

# strings fw.bin | tail -5

Also let's try to enable some debug levels. Can you enable CONFIG_BRCMDBG and rebuild the driver?

Then load the driver module with debug parameter set to 0x1c1416.

Regards,
Arend

Thanks!

[1] https://lore.kernel.org/all/2db80338-c92d-b006-c281-dab943029168@xxxxxxxxxxx/T

Cheers

Marcel

---

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
index 80220685f5e4..b596762a1cd2 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
@@ -66,6 +66,7 @@ BRCMF_FW_DEF(4365C, "brcmfmac4365c-pcie");
BRCMF_FW_DEF(4366B, "brcmfmac4366b-pcie");
BRCMF_FW_DEF(4366C, "brcmfmac4366c-pcie");
BRCMF_FW_DEF(4371, "brcmfmac4371-pcie");
+BRCMF_FW_CLM_DEF(43752, "brcmfmac43752-pcie");
BRCMF_FW_CLM_DEF(4377B3, "brcmfmac4377b3-pcie");
BRCMF_FW_CLM_DEF(4378B1, "brcmfmac4378b1-pcie");
BRCMF_FW_CLM_DEF(4378B3, "brcmfmac4378b3-pcie");
@@ -104,6 +105,7 @@ static const struct brcmf_firmware_mapping brcmf_pcie_fwnames[] = {
 BRCMF_FW_ENTRY(BRCM_CC_43664_CHIP_ID, 0xFFFFFFF0, 4366C),
 BRCMF_FW_ENTRY(BRCM_CC_43666_CHIP_ID, 0xFFFFFFF0, 4366C),
 BRCMF_FW_ENTRY(BRCM_CC_4371_CHIP_ID, 0xFFFFFFFF, 4371),
+ BRCMF_FW_ENTRY(BRCM_CC_43752_CHIP_ID, 0xFFFFFFFF, 43752),
 BRCMF_FW_ENTRY(BRCM_CC_4377_CHIP_ID, 0xFFFFFFFF, 4377B3), /* revision ID 4 */
 BRCMF_FW_ENTRY(BRCM_CC_4378_CHIP_ID, 0x0000000F, 4378B1), /* revision ID 3 */
 BRCMF_FW_ENTRY(BRCM_CC_4378_CHIP_ID, 0xFFFFFFE0, 4378B3), /* revision ID 5 */
@@ -2062,6 +2064,8 @@ static int brcmf_pcie_read_otp(struct brcmf_pciedev_info *devinfo)
 words = 0x170;
 break;
 case BRCM_CC_4387_CHIP_ID:
+//brcmf_pcie_probe: failed to parse OTP
+// case BRCM_CC_43752_CHIP_ID:
 coreid = BCMA_CORE_GCI;
 base = 0x113c;
 words = 0x170;
@@ -2694,6 +2698,7 @@ static const struct pci_device_id brcmf_pcie_devid_table[] = {
 BRCMF_PCIE_DEVICE(BRCM_PCIE_4366_2G_DEVICE_ID, BCA),
 BRCMF_PCIE_DEVICE(BRCM_PCIE_4366_5G_DEVICE_ID, BCA),
 BRCMF_PCIE_DEVICE(BRCM_PCIE_4371_DEVICE_ID, WCC),
+ BRCMF_PCIE_DEVICE(BRCM_PCIE_43752_DEVICE_ID, WCC),
 BRCMF_PCIE_DEVICE(BRCM_PCIE_43596_DEVICE_ID, CYW),
 BRCMF_PCIE_DEVICE(BRCM_PCIE_4377_DEVICE_ID, WCC),
 BRCMF_PCIE_DEVICE(BRCM_PCIE_4378_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 44684bf1b9ac..b97b4c640d1b 100644
--- a/drivers/net/wireless/broadcom/brcm80211/include/brcm_hw_ids.h
+++ b/drivers/net/wireless/broadcom/brcm80211/include/brcm_hw_ids.h
@@ -59,6 +59,7 @@
#define CY_CC_43012_CHIP_ID 43012
#define CY_CC_43439_CHIP_ID 43439
#define CY_CC_43752_CHIP_ID 43752
+#define BRCM_CC_43752_CHIP_ID 43752

/* USB Device IDs */
#define BRCM_USB_43143_DEVICE_ID 0xbd1e
@@ -93,6 +94,7 @@
#define BRCM_PCIE_4366_2G_DEVICE_ID 0x43c4
#define BRCM_PCIE_4366_5G_DEVICE_ID 0x43c5
#define BRCM_PCIE_4371_DEVICE_ID 0x440d
+#define BRCM_PCIE_43752_DEVICE_ID 0x449d
#define BRCM_PCIE_43596_DEVICE_ID 0x4415
#define BRCM_PCIE_4377_DEVICE_ID 0x4488
#define BRCM_PCIE_4378_DEVICE_ID 0x4425



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