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openmptcprouter/root/target/linux/brcm2708/patches-4.19/0689-arm-dts-Add-coherent_pool-1M-to-Pi-4-bootargs.patch
Ycarus (Yannick Chabanois) fb31f0fe9a Try to support RPI4
2019-07-04 20:51:23 +02:00

33 lines
1.1 KiB
Diff

From dbb5d678f6a7c50d4026facf98b46c36555da084 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Tue, 2 Jul 2019 17:13:05 +0100
Subject: [PATCH 689/692] arm: dts: Add coherent_pool=1M to Pi 4 bootargs
Downstream Raspberry Pi dts files add "coherent_pool=1M" to the kernel
command line to aid the dwc_otg driver, but this excluded Pi 4 which
uses a new XCHI interface instead. UAS also benefits from a larger
coherent_pool value, so replicate the addition in bcm2711-rpi-4-b.dts.
See: https://github.com/raspberrypi/linux/pull/3040
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
index 5addb6130fa7..9b5c4f8a4d17 100644
--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
@@ -14,7 +14,7 @@
};
chosen {
- bootargs = "8250.nr_uarts=1 cma=64M";
+ bootargs = "coherent_pool=1M 8250.nr_uarts=1 cma=64M";
};
aliases {
--
2.19.1