brcm2708: organize kernel patches

[openwrt/staging/chunkeey.git] / target / linux / brcm2708 / patches-4.19 / 950-0624-arm-dts-Add-coherent_pool-1M-to-Pi-4-bootargs.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0624-arm-dts-Add-coherent_pool-1M-to-Pi-4-bootargs.patch b/target/linux/brcm2708/patches-4.19/950-0624-arm-dts-Add-coherent_pool-1M-to-Pi-4-bootargs.patch
new file mode 100644 (file)
index 0000000..222de5b
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0624-arm-dts-Add-coherent_pool-1M-to-Pi-4-bootargs.patch
@@ -0,0 +1,28 @@
+From f9dfd577dcc8e3173ddce79bca535eeee0fad1a4 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 2 Jul 2019 17:13:05 +0100
+Subject: [PATCH] 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(-)
+
+--- 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 {