topic Re: p2020rdb-pca PCIe does not recognize devices in P-Series

p2020rdb-pca PCIe does not recognize devices

ymha07 — Tue, 24 Aug 2021 07:21:33 GMT

Hi,

I'm trying to construct a wireless communication network using the p2020rdb-pca.

After installing wlan cards using the PCIe interface on the p2020rdb-pca, I used a command 'lspci' and
got the following messages, which imply "the wlan cards are not recognized".

--- Messages ---
root@p2020rdb:~# lspci

0000:00:00.0 PCI bridge: Freescale Semiconductor Inc P2020E (rev 21)

0000:01:00.0 Mass storage controller: Silicon Image, Inc. SiI 3132 Serial ATA Raid II Controller (rev 01)

0001:02:00.0 PCI bridge: Freescale Semiconductor Inc P2020E (rev 21)

---------

I tried to configure the Linux kernel like the belows and got the same result.

Bus options --->
[*] PCI Express Port Bus support
[*] Root Port Advanced Error Reporting support
[*] PCI Express ASPM control

There was no result of recognizing the wlan cards.
How can I solve this problem?

Re: p2020rdb-pca PCIe does not recognize devices

ufedor — Tue, 24 Aug 2021 10:36:38 GMT

Please provide additional information:

1) U-Boot booting log text

2) photo of the RDB board with installed PCIe card

3) positions of all on-board switches

Re: p2020rdb-pca PCIe does not recognize devices

ymha07 — Wed, 25 Aug 2021 01:23:09 GMT

Hi, thanks for the fast reply.

The attached files include a booting log text, photos of the RDB board with PCIe cards and on-board switches.

If I didn't attach any files in need, please let me know.

Thank you in advance for your help.

Re: p2020rdb-pca PCIe does not recognize devices

ufedor — Wed, 25 Aug 2021 02:24:29 GMT

Please try SW2[7]=ON

Re: p2020rdb-pca PCIe does not recognize devices

ymha07 — Wed, 25 Aug 2021 08:43:26 GMT

It works ! The below is the message I got after it.

Thanks for your help!

root@p2020rdb:~# lspci

0000:00:00.0 PCI bridge: Freescale Semiconductor Inc P2020E (rev 21)

0000:01:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge (rev 03)

0000:02:00.0 Network controller: Cisco Aironet Wireless Communications 350 series 802.11b Wireless LAN Adapter (rev 01)

0001:03:00.0 PCI bridge: Freescale Semiconductor Inc P2020E (rev 21)

root@p2020rdb:~# iwconfig

eth3 IEEE 802.11-DS ESSID:""

Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated

Bit Rate:0 kb/s Tx-Power=20 dBm Sensitivity=0/65535

Retry limit:16 RTS thr:off Fragment thr:off

Encryption key:off

Power Management:off

Link Quality=0/100 Signal level=-110 dBm Noise level=0 dBm

Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0

Tx excessive retries:0 Invalid misc:0 Missed beacon:0

wifi0 IEEE 802.11-DS ESSID:""

Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated

Bit Rate:0 kb/s Tx-Power=20 dBm Sensitivity=0/65535

Retry limit:16 RTS thr:off Fragment thr:off

Encryption key:off

Power Management:off

Link Quality=0/100 Signal level=-110 dBm Noise level=0 dBm

Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0

Tx excessive retries:0 Invalid misc:0 Missed beacon:0

lo no wireless extensions.

eth2 no wireless extensions.

tunl0 no wireless extensions.

eth1 no wireless extensions.

sit0 no wireless extensions.

dummy0 no wireless extensions.

eth0 no wireless extensions.