From 233e6e9dbe169d68d422e0f3eccb26539ff0c512 Mon Sep 17 00:00:00 2001 From: Harini Katakam Date: Thu, 8 Jun 2023 14:51:23 +0200 Subject: [PATCH] arm64: zynqmp: Assign TSU clock frequency for GEMs Allow changing TSU clock for all GEMs. Kria SOM is using this functionality that's why set TSU clock frequency as 250MHz (minimum when running at 1G) to allow PTP functionality. Signed-off-by: Harini Katakam Signed-off-by: Michal Simek Link: https://lore.kernel.org/r/3b9285b50a2a4abb136ecb0873343a4e84626581.1686228675.git.michal.simek@amd.com --- arch/arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi | 4 ++++ arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revA.dtso | 1 + arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dtso | 1 + 3 files changed, 6 insertions(+) diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi index f04716841a0c0..ccaca29200bb9 100644 --- a/arch/arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi +++ b/arch/arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi @@ -146,24 +146,28 @@ clocks = <&zynqmp_clk LPD_LSBUS>, <&zynqmp_clk GEM0_REF>, <&zynqmp_clk GEM0_TX>, <&zynqmp_clk GEM0_RX>, <&zynqmp_clk GEM_TSU>; + assigned-clocks = <&zynqmp_clk GEM_TSU>; }; &gem1 { clocks = <&zynqmp_clk LPD_LSBUS>, <&zynqmp_clk GEM1_REF>, <&zynqmp_clk GEM1_TX>, <&zynqmp_clk GEM1_RX>, <&zynqmp_clk GEM_TSU>; + assigned-clocks = <&zynqmp_clk GEM_TSU>; }; &gem2 { clocks = <&zynqmp_clk LPD_LSBUS>, <&zynqmp_clk GEM2_REF>, <&zynqmp_clk GEM2_TX>, <&zynqmp_clk GEM2_RX>, <&zynqmp_clk GEM_TSU>; + assigned-clocks = <&zynqmp_clk GEM_TSU>; }; &gem3 { clocks = <&zynqmp_clk LPD_LSBUS>, <&zynqmp_clk GEM3_REF>, <&zynqmp_clk GEM3_TX>, <&zynqmp_clk GEM3_RX>, <&zynqmp_clk GEM_TSU>; + assigned-clocks = <&zynqmp_clk GEM_TSU>; }; &gpio { diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revA.dtso b/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revA.dtso index e06c6824dea47..ae1b9b2bdbee2 100644 --- a/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revA.dtso +++ b/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revA.dtso @@ -145,6 +145,7 @@ pinctrl-0 = <&pinctrl_gem3_default>; phy-handle = <&phy0>; phy-mode = "rgmii-id"; + assigned-clock-rates = <250000000>; mdio: mdio { #address-cells = <1>; diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dtso b/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dtso index 030e2c93f0e6b..b59e48be6465a 100644 --- a/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dtso +++ b/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dtso @@ -128,6 +128,7 @@ pinctrl-0 = <&pinctrl_gem3_default>; phy-handle = <&phy0>; phy-mode = "rgmii-id"; + assigned-clock-rates = <250000000>; mdio: mdio { #address-cells = <1>; -- 2.30.2