target/linux/brcm2708/patches-4.19/950-0681-arm-dts-Add-coherent_pool-1M-to-Pi-4-bootargs.patch

   1 From 626e81656bc5a27656180d8faf6173e9bcd7e512 Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.org>
   3 Date: Tue, 2 Jul 2019 17:13:05 +0100
   4 Subject: [PATCH 681/725] arm: dts: Add coherent_pool=1M to Pi 4 bootargs
   5
   6 Downstream Raspberry Pi dts files add "coherent_pool=1M" to the kernel
   7 command line to aid the dwc_otg driver, but this excluded Pi 4 which
   8 uses a new XCHI interface instead. UAS also benefits from a larger
   9 coherent_pool value, so replicate the addition in bcm2711-rpi-4-b.dts.
  10
  11 See: https://github.com/raspberrypi/linux/pull/3040
  12
  13 Signed-off-by: Phil Elwell <phil@raspberrypi.org>
  14 ---
  15  arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 2 +-
  16  1 file changed, 1 insertion(+), 1 deletion(-)
  17
  18 --- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
  19 +++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
  20 @@ -14,7 +14,7 @@
  21         };
  22
  23         chosen {
  24 -               bootargs = "8250.nr_uarts=1 cma=64M";
  25 +               bootargs = "coherent_pool=1M 8250.nr_uarts=1 cma=64M";
  26         };
  27
  28         aliases {