[PATCH] arm64: dts: lx2160a-rev2: avoid 32-bit pcie window system ram overlap

[Arnd Bergmann]

On Wed, Jun 10, 2026, at 13:45, Josua Mayer wrote:
> A 3GB non-prefetchable PCIe bus window can overlap with inbound DMA
> addresses for low system RAM, so DMA transactions may be routed to a BAR
> on the same host bridge instead of memory.
>
> Change the 32-bit non-prefetchable PCIe window back from 3GB to 1GB on all
> controllers, avoiding that overlap while keeping the added 64-bit
> prefetchable region.
>
> This partially reverts commit 9ed301397090 ("arm64: dts: lx2160a-rev2:
> extend 32-bit and add 64-bit pci regions").
>
> Fixes: 9ed301397090 ("arm64: dts: lx2160a-rev2: extend 32-bit and add 
> 64-bit pci regions")
> Reported-by: Arnd Bergmann <arnd at arndb.de>
> Closes: 
> https://lore.kernel.org/r/9e6326f6-dad1-4169-a63c-e62ee5b341f2@app.fastmail.com
> Signed-off-by: Josua Mayer <josua at solid-run.com>

Looks good to me, thanks for the fix!

Acked-by: Arnd Bergmann <arnd at arndb.de>