I also have the same issue with Macbook Pro early 2015:
$ lspci -vvnn | grep -A 9 Network [17:15:14]
03:00.0 Network controller [0280]: Broadcom Corporation Device [14e4:43ba] (rev
01)
Subsystem: Apple Inc. Device [106b:0133]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 256 bytes
Interrupt: pin A routed to IRQ 64
Region 0: Memory at c1400000 (64-bit, non-prefetchable) [size=32K]
Region 2: Memory at c1000000 (64-bit, non-prefetchable) [size=4M]
Capabilities: <access denied>
Kernel driver in use: brcmfmac
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https://bugs.launchpad.net/bugs/1448567
Title:
Ubuntu 15.04 - Macbook Pro Early 2015 (12,1) no 5 GHz wireless
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