[coreboot - Bug #548] Lenovo X201 Fails To Recognize Upgraded WiFi Card

Issue #548 has been updated by Walter Sonius.


Works for me on X201, not sure if its the same ac-7260 adapter, have you tried the other internal mini-PCIE?

```
sudo dmesg | grep LENOVO
[    0.000000] DMI: LENOVO 3680WVT/3680WVT, BIOS CBET4000 24.08-335-g920c0a604560 09/30/2024

lspci -vv
04:00.0 Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b1] (rev 73)
        Subsystem: Intel Corporation Dual Band Wireless-AC 7260 [Wilkins Peak 2] [8086:4070]

lspci -tvnn
-+-[0000:00]-+-00.0  Intel Corporation Core Processor DRAM Controller [8086:0044]
 |           +-02.0  Intel Corporation Core Processor Integrated Graphics Controller [8086:0046]
 |           +-16.0  Intel Corporation 5 Series/3400 Series Chipset HECI Controller [8086:3b64]
 |           +-19.0  Intel Corporation 82577LM Gigabit Network Connection [8086:10ea]
 |           +-1a.0  Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller [8086:3b3c]
 |           +-1b.0  Intel Corporation 5 Series/3400 Series Chipset High Definition Audio [8086:3b56]
 |           +-1c.0-[01]--
 |           +-1c.1-[02]--
 |           +-1c.3-[03]--
 |           +-1c.4-[04]----00.0  Intel Corporation Wireless 7260 [8086:08b1]
 |           +-1d.0  Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller [8086:3b34]
 |           +-1e.0-[05]--
 |           +-1f.0  Intel Corporation QM57 Chipset LPC Interface Controller [8086:3b07]
 |           +-1f.2  Intel Corporation 5 Series/3400 Series Chipset 6 port SATA AHCI Controller [8086:3b2f]
 |           +-1f.3  Intel Corporation 5 Series/3400 Series Chipset SMBus Controller [8086:3b30]
 |           \-1f.6  Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem [8086:3b32]
 \-[0000:ff]-+-00.0  Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers [8086:2c62]
             +-00.1  Intel Corporation Core Processor QuickPath Architecture System Address Decoder [8086:2d01]
             +-02.0  Intel Corporation Core Processor QPI Link 0 [8086:2d10]
             +-02.1  Intel Corporation 1st Generation Core i3/5/7 Processor QPI Physical 0 [8086:2d11]
             +-02.2  Intel Corporation 1st Generation Core i3/5/7 Processor Reserved [8086:2d12]
             \-02.3  Intel Corporation 1st Generation Core i3/5/7 Processor Reserved [8086:2d13]
```

----------------------------------------
Bug #548: Lenovo X201 Fails To Recognize Upgraded WiFi Card
https://ticket.coreboot.org/issues/548#change-1943

* Author: Jeremy Brown
* Status: New
* Priority: Normal
* Target version: none
* Start date: 2024-07-15
----------------------------------------
I am running coreboot 24.05 on my Lenovo X201.

I decided to upgrade my WiFi card from an Intel Centrino Advanced-N 6205 to an Intel Wireless-AC 7260; since I selected the option to support Intel PCIe cards in my build config I expected everything to work but my computer fails to recognize the new card. The old card is still recognized if I reinstall it so I know I didn't mess up the socket somehow; I've read reports of the 7260 [working with a modded factory BIOS](https://richbits.rbarnes.org/installing-the-intel-7260-in-the-thinkpad-x201.html) so I don't think there's an electrical issue. I've seen [somewhat related bugs](https://ticket.coreboot.org/issues/311) but it seems their issue isn't mine.

I've attached lspci data from both chips and my build config, lmk if additional information is needed.

---Files--------------------------------
6205_lspci_tree.txt (1.63 KB)
7260_lspci_tree.txt (1.57 KB)
6205_lspci.txt (12.8 KB)
7260_lspci.txt (12.2 KB)
coreboot.cfg (20.1 KB)
6205_root_inspection.txt (3.58 KB)
7260_root_inspection.txt (3.58 KB)
6205_cbmem_dump.txt (43.2 KB)
7260_cbmem_dump.txt (42.1 KB)


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