f07e572f64
bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G bcm2710: boot tested on RPi 3B v1.2 bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
29 lines
991 B
Diff
29 lines
991 B
Diff
From 142ad0b8433d6beb87070bd39a6b2d23ca9cae30 Mon Sep 17 00:00:00 2001
|
|
From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
|
|
Date: Thu, 19 Mar 2020 20:00:13 +0100
|
|
Subject: [PATCH] ARM: dts: bcm283x: Fix vc4's firmware bus DMA
|
|
limitations
|
|
|
|
The bus is virtual and devices have to inherit their DMA constraints
|
|
from the underlying interconnect. So add an empty dma-ranges property to
|
|
the bus node, implying the firmware bus' DMA constraints are identical to
|
|
its parent's.
|
|
|
|
Fixes: 7dbe8c62ceeb ("ARM: dts: Add minimal Raspberry Pi 4 support")
|
|
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
|
|
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
|
|
---
|
|
arch/arm/boot/dts/bcm2835-rpi.dtsi | 1 +
|
|
1 file changed, 1 insertion(+)
|
|
|
|
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
|
|
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
|
|
@@ -15,6 +15,7 @@
|
|
firmware: firmware {
|
|
compatible = "raspberrypi,bcm2835-firmware", "simple-bus";
|
|
mboxes = <&mailbox>;
|
|
+ dma-ranges;
|
|
};
|
|
|
|
power: power {
|