diff mbox series

[v1,2/4] brcmfmac: pcie: Add IDs/properties for BCM4355

Message ID 20230104100116.729-3-marcan@marcan.st
State Superseded
Headers show
Series BCM4355/4364/4377 support & identification fixes | expand

Commit Message

Hector Martin Jan. 4, 2023, 10:01 a.m. UTC
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).

Signed-off-by: Hector Martin <marcan@marcan.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(-)

Comments

Arend van Spriel Jan. 4, 2023, 1:35 p.m. UTC | #1
On 1/4/2023 11:01 AM, 'Hector Martin' via BRCM80211-DEV-LIST,PDL 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@broadcom.com>
> Signed-off-by: Hector Martin <marcan@marcan.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 3264be485e20..bb4faea0f0b6 100644
> --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
> +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c

[...]

> @@ -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;

This bit is not described in the commit message. Can you remind me why 
the driver needs to read OTP?
diff mbox series

Patch

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
index 3264be485e20..bb4faea0f0b6 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;
@@ -2591,6 +2598,7 @@  static const struct pci_device_id brcmf_pcie_devid_table[] = {
 	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_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 cacc43db86eb..a722c37d7399 100644
--- a/drivers/net/wireless/broadcom/brcm80211/include/brcm_hw_ids.h
+++ b/drivers/net/wireless/broadcom/brcm80211/include/brcm_hw_ids.h
@@ -73,6 +73,7 @@ 
 #define BRCM_PCIE_4354_DEVICE_ID	0x43df
 #define BRCM_PCIE_4354_RAW_DEVICE_ID	0x4354
 #define BRCM_PCIE_4355_RAW_DEVICE_ID	0x4355
+#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