From f9c0f8057ffee5c039fe20c3e2dcd7fea70222e9 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Thu, 2 May 2019 22:14:34 +0100
Subject: [PATCH] BCM270X_DT: Also set coherent_pool=1M for BT Pis

See: https://github.com/raspberrypi/linux/issues/2924

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
 arch/arm/boot/dts/bcm2708-rpi-0-w.dts      | 2 +-
 arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts | 2 +-
 arch/arm/boot/dts/bcm2710-rpi-3-b.dts      | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

--- a/arch/arm/boot/dts/bcm2708-rpi-0-w.dts
+++ b/arch/arm/boot/dts/bcm2708-rpi-0-w.dts
@@ -8,7 +8,7 @@
 	model = "Raspberry Pi Zero W";
 
 	chosen {
-		bootargs = "8250.nr_uarts=1";
+		bootargs = "coherent_pool=1M 8250.nr_uarts=1";
 	};
 
 	aliases {
--- a/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts
+++ b/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts
@@ -9,7 +9,7 @@
 	model = "Raspberry Pi 3 Model B+";
 
 	chosen {
-		bootargs = "8250.nr_uarts=1";
+		bootargs = "coherent_pool=1M 8250.nr_uarts=1";
 	};
 
 	aliases {
--- a/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
+++ b/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
@@ -9,7 +9,7 @@
 	model = "Raspberry Pi 3 Model B";
 
 	chosen {
-		bootargs = "8250.nr_uarts=1";
+		bootargs = "coherent_pool=1M 8250.nr_uarts=1";
 	};
 
 	aliases {
