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Message-Id: <20200227192946.17328-1-f.fainelli@gmail.com>
Date: Thu, 27 Feb 2020 11:29:46 -0800
From: Florian Fainelli <f.fainelli@...il.com>
To: bcm-kernel-feedback-list@...adcom.com,
Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
Rob Herring <robh+dt@...nel.org>
Cc: phil@...pberrypi.org, devicetree@...r.kernel.org,
linux-rpi-kernel@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: dts: bcm2711: Add pcie0 alias
On Wed, 26 Feb 2020 17:46:00 +0100, Nicolas Saenz Julienne <nsaenzjulienne@...e.de> wrote:
> Some bcm2711 revisions have different DMA constraints on the their PCIE
> bus. The lower common denominator, being able to access the lower 3GB of
> memory, is the default setting for now. Newer SoC revisions are able to
> access the whole memory space.
>
> Raspberry Pi 4's firmware is aware of this limitation and will correct
> the PCIE's dma-ranges property if a pcie0 alias is available. So add
> it.
>
> Fixes: d5c8dc0d4c88 ("ARM: dts: bcm2711: Enable PCIe controller")
> Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
> ---
Applied to devicetree/fixes, thanks!
--
Florian
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