[PATCH 1/2] devices: Add Atheros AR9381

[Hauke Mehrtens]

On 1/18/22 23:38, Sergey Ryazanov wrote:
> Hello Hauke,
> 
> On Mon, Jan 17, 2022 at 12:35 AM Hauke Mehrtens <hauke at hauke-m.de> wrote:
>> This adds the Atheros AR9381 to the devices list. This card was found in
>> the TP-LINK TD-W8970.
>>
>> Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
>> ---
>>   devices.txt | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/devices.txt b/devices.txt
>> index e6c18e6..3cec45a 100644
>> --- a/devices.txt
>> +++ b/devices.txt
>> @@ -172,6 +172,7 @@
>>   0x168c 0x0046 0x168c 0xcafe    0      0  "Qualcomm Atheros" "QCA9984"
>>   0x168c 0x0050 0x0000 0x0000    0      0  "Qualcomm Atheros" "QCA9887"
>>   0x168c 0x0056 0x0000 0x0000    0      0  "Qualcomm Atheros" "QCA9886"
>> +0x168c 0xabcd 0x0000 0x0000    0      0  "Atheros"  "AR9381"
> 
> I am just curious, is this a normal device ID for AR9381 chips or is
> this some kind of wrongly programmed EEPROM of TD-W8970?
> 
> ath9k driver knows nothing about the 0xABCD device. And according to
> wikidevi [1], the normal DevID for AR9381 based devices is 0x0030.
> 
> 1. https://wikidevi.wi-cat.ru/Alpha_Networks_WMC-N02
> 

Hi,

Thanks for pointing this out.
It could be that I broke something in the EEPROM on this device 
accidentally, I use it for testing since some time. It could also be 
that the PCIe controller driver is broken, it is not upstream and not 
looking nice.

Hauke


Here is the output:
-------------------
root at OpenWrt:/# lspci -v -n
00:00.0 0604: 1bef:0011 (rev 01) (prog-if 00 [Normal decode])
         Device tree node: 
/sys/firmware/devicetree/base/fpi at 10000000/pcie at d900000/pcie at 0
         Flags: bus master, fast devsel, latency 0, IRQ 144
         Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
         I/O behind bridge: [disabled]
         Memory behind bridge: 1c000000-1c0fffff [size=1M]
         Prefetchable memory behind bridge: 1c100000-1c1fffff [size=1M]
         Capabilities: [40] Power Management version 3
         Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit-
         Capabilities: [70] Express Root Port (Slot-), MSI 00
         Capabilities: [100] Advanced Error Reporting
         Capabilities: [140] Virtual Channel
         Capabilities: [160] Power Budgeting <?>
         Kernel driver in use: pcieport
lspci: Unable to load libkmod resources: error -12

01:00.0 0200: 168c:abcd (rev 01)
         Device tree node: 
/sys/firmware/devicetree/base/fpi at 10000000/pcie at d900000/pcie at 0/wifi at 168c,002e
         Flags: bus master, fast devsel, latency 0, IRQ 144
         Memory at 1c000000 (64-bit, non-prefetchable) [size=128K]
         Expansion ROM at 1c100000 [virtual] [disabled] [size=64K]
         Capabilities: [40] Power Management version 3
         Capabilities: [50] MSI: Enable- Count=1/4 Maskable+ 64bit+
         Capabilities: [70] Express Endpoint, MSI 00
         Capabilities: [100] Advanced Error Reporting
         Capabilities: [140] Virtual Channel
         Capabilities: [300] Device Serial Number 00-00-00-00-00-00-00-00
         Kernel driver in use: ath9k
-------------------

This is the kernel log:
--------
[   23.735405] ifx_pcie_bios_map_irq port 0 dev 0000:01:00.0 slot 0 pin 1
[   23.740723] ifx_pcie_bios_map_irq dev 0000:01:00.0 irq 144 assigned
[   23.746963] ath9k 0000:01:00.0: enabling device (0000 -> 0002)
[   23.753378] ath9k 0000:01:00.0: Direct firmware load for 
ath9k-eeprom-pci-0000:01:00.0.bin failed with error -2
[   23.762891] ath9k 0000:01:00.0: Falling back to sysfs fallback for: 
ath9k-eeprom-pci-0000:01:00.0.bin
[   24.599413] ieee80211 phy0: Atheros AR9300 Rev:3 mem=0xbc000000, irq=144
--------

Hauke