diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.15/950-0656-ARM-dts-Remove-VL805-USB-node-from-CM4-dts.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.15/950-0656-ARM-dts-Remove-VL805-USB-node-from-CM4-dts.patch | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.15/950-0656-ARM-dts-Remove-VL805-USB-node-from-CM4-dts.patch b/target/linux/bcm27xx/patches-5.15/950-0656-ARM-dts-Remove-VL805-USB-node-from-CM4-dts.patch new file mode 100644 index 0000000000..e7fe76911e --- /dev/null +++ b/target/linux/bcm27xx/patches-5.15/950-0656-ARM-dts-Remove-VL805-USB-node-from-CM4-dts.patch @@ -0,0 +1,32 @@ +From 98695baaffb88f7de0486fa1e039f8b3e47661d2 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.com> +Date: Wed, 12 Jan 2022 14:39:46 +0000 +Subject: [PATCH] ARM: dts: Remove VL805 USB node from CM4 dts + +Neither the CM4 module nor the CM4IO board have a VL805 USB3 +controller. The existing "usb@0,0" node is a hangover from the +Pi 4 dts; delete it. An up-to-date firmware will automatically load +the vl805 overlay on CM4s with VL805=1 in the EEPROM config, ensuring +that the firmware is notified of any PCIe reset. + +See: https://forums.raspberrypi.com/viewtopic.php?t=326088 + +Signed-off-by: Phil Elwell <phil@raspberrypi.com> +--- + arch/arm/boot/dts/bcm2711-rpi-cm4.dts | 5 ----- + 1 file changed, 5 deletions(-) + +--- a/arch/arm/boot/dts/bcm2711-rpi-cm4.dts ++++ b/arch/arm/boot/dts/bcm2711-rpi-cm4.dts +@@ -237,11 +237,6 @@ + ranges; + + reg = <0 0 0 0 0>; +- +- usb@0,0 { +- reg = <0 0 0 0 0>; +- resets = <&reset RASPBERRYPI_FIRMWARE_RESET_ID_USB>; +- }; + }; + }; + |