git.openwrt.org Git - openwrt/staging/blocktrron.git/blob

   1 From b956c9de91757c9478e24fc9f6a57fd46f0a49f0 Mon Sep 17 00:00:00 2001
   2 From: Dmitry Osipenko <dmitry.osipenko@collabora.com>
   3 Date: Mon, 17 Feb 2025 01:16:34 +0300
   4 Subject: [PATCH] arm64: dts: rockchip: rk356x: Move PCIe MSI to use GIC
   5  ITS instead of MBI
   6
   7 Rockchip 356x device-tree now supports GIC ITS. Move PCIe controller's
   8 MSI to use ITS instead of MBI. This removes extra CPU overhead of handling
   9 PCIe MBIs by letting GIC's ITS to serve the PCIe MSIs.
  10
  11 Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
  12 Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
  13 Link: https://lore.kernel.org/all/20250216221634.364158-4-dmitry.osipenko@collabora.com
  14 ---
  15  arch/arm64/boot/dts/rockchip/rk356x-base.dtsi | 2 +-
  16  1 file changed, 1 insertion(+), 1 deletion(-)
  17
  18 --- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi
  19 +++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
  20 @@ -1043,7 +1043,7 @@
  21                 num-ib-windows = <6>;
  22                 num-ob-windows = <2>;
  23                 max-link-speed = <2>;
  24 -               msi-map = <0x0 &gic 0x0 0x1000>;
  25 +               msi-map = <0x0 &its 0x0 0x1000>;
  26                 num-lanes = <1>;
  27                 phys = <&combphy2 PHY_TYPE_PCIE>;
  28                 phy-names = "pcie-phy";