Bug#960129: linux-image-5.6.0-1-arm64: please enable CONFIG_PCIE_BRCMSTB in the arm64 kernel for Raspberry Pi 4
Lucas Nussbaum <lucas@debian.org> writes:
> On 09/05/20 at 20:44 +0200, Bjørn Mork wrote:
>> Please enable CONFIG_PCIE_BRCMSTB on arm64.
>>
>> The Raspberry Pi 4 has a VL805 xhci controller connected to the
>> PCIe bus on the SoC. All USB ports are connected to this controller.
>> CONFIG_PCIE_BRCMSTB is therefore necessary for USB support.
>
> I am trying to boot a RPI4 with the 5.6 kernel from unstable, but it
> fails to boot (while it worked with 5.5 from unstable).
>
> What I'm seeing with 5.5, but not with 5.6, is:
> [ 4.500333] mmc1: SDHCI controller on fe340000.emmc2 [fe340000.emmc2] using ADMA
> [ 4.500585] mmc0: queuing unknown CIS tuple 0x80 (3 bytes)
> [ 4.577842] mmc0: new high speed SDIO card at address 0001
> [ 4.610694] mmc1: new ultra high speed DDR50 SDHC card at address aaaa
> [ 4.618812] mmcblk1: mmc1:aaaa SC16G 14.8 GiB
> [ 4.629268] mmcblk1: p1 p2
>
> Did you also see that issue?
No, I didn't. I am netbooting, so I wouldn't have noticed...
Don't think I've tried booting any Debian kernels from an SD card yet.
Will try to find some time to test it. But I find using SD cards more
quite a hassle :-)
> Was it fixed by enabling
> CONFIG_PCIE_BRCMSTB, or is that a different issue?
Probably different. I believe this driver just enables the PCIe
controller, which should be independent of anything else except the PCIe
connected xhci controller.
Bjørn
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