target/linux/bcm27xx/patches-5.15/950-0656-ARM-dts-Remove-VL805-USB-node-from-CM4-dts.patch

   1 From 98695baaffb88f7de0486fa1e039f8b3e47661d2 Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.com>
   3 Date: Wed, 12 Jan 2022 14:39:46 +0000
   4 Subject: [PATCH] ARM: dts: Remove VL805 USB node from CM4 dts
   5
   6 Neither the CM4 module nor the CM4IO board have a VL805 USB3
   7 controller. The existing "usb@0,0" node is a hangover from the
   8 Pi 4 dts; delete it. An up-to-date firmware will automatically load
   9 the vl805 overlay on CM4s with VL805=1 in the EEPROM config, ensuring
  10 that the firmware is notified of any PCIe reset.
  11
  12 See: https://forums.raspberrypi.com/viewtopic.php?t=326088
  13
  14 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
  15 ---
  16  arch/arm/boot/dts/bcm2711-rpi-cm4.dts | 5 -----
  17  1 file changed, 5 deletions(-)
  18
  19 --- a/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
  20 +++ b/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
  21 @@ -237,11 +237,6 @@
  22                 ranges;
  23
  24                 reg = <0 0 0 0 0>;
  25 -
  26 -               usb@0,0 {
  27 -                       reg = <0 0 0 0 0>;
  28 -                       resets = <&reset RASPBERRYPI_FIRMWARE_RESET_ID_USB>;
  29 -               };
  30         };
  31  };
  32