[PATCH 2/4] arm64: dts: amd/seattle: Move and simplify fixed clocks

From: Rob Herring (Arm)
Date: Thu Mar 06 2025 - 20:08:28 EST


The fixed clocks are not part of "simple-bus", so move them out of the
bus to the top-level. In the process, use the preferred node names of
"clock-<freq>". There's also little reason to have multiple fixed
clocks at the same frequencies, so remove them keeping the labels
to minimize the change.

Signed-off-by: Rob Herring (Arm) <robh@xxxxxxxxxx>
---
arch/arm64/boot/dts/amd/amd-seattle-clks.dtsi | 24 ++++++---------------
arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi | 4 ++--
arch/arm64/boot/dts/amd/amd-seattle-xgbe-b.dtsi | 28 -------------------------
3 files changed, 8 insertions(+), 48 deletions(-)

diff --git a/arch/arm64/boot/dts/amd/amd-seattle-clks.dtsi b/arch/arm64/boot/dts/amd/amd-seattle-clks.dtsi
index 2dd2c28171ee..73f687773ce6 100644
--- a/arch/arm64/boot/dts/amd/amd-seattle-clks.dtsi
+++ b/arch/arm64/boot/dts/amd/amd-seattle-clks.dtsi
@@ -5,51 +5,39 @@
* Copyright (C) 2014 Advanced Micro Devices, Inc.
*/

- adl3clk_100mhz: clk100mhz_0 {
+ adl3clk_100mhz: uartspiclk_100mhz: clock-100000000 {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <100000000>;
clock-output-names = "adl3clk_100mhz";
};

- ccpclk_375mhz: clk375mhz {
+ ccpclk_375mhz: clock-375000000 {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <375000000>;
clock-output-names = "ccpclk_375mhz";
};

- sataclk_333mhz: clk333mhz {
+ sataclk_333mhz: clock-333000000 {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <333000000>;
clock-output-names = "sataclk_333mhz";
};

- pcieclk_500mhz: clk500mhz_0 {
+ dmaclk_500mhz: pcieclk_500mhz: clock-500000000 {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <500000000>;
clock-output-names = "pcieclk_500mhz";
};

- dmaclk_500mhz: clk500mhz_1 {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <500000000>;
- clock-output-names = "dmaclk_500mhz";
- };
-
- miscclk_250mhz: clk250mhz_4 {
+ xgmacclk0_dma_250mhz: xgmacclk0_ptp_250mhz: xgmacclk1_dma_250mhz: xgmacclk1_ptp_250mhz:
+ miscclk_250mhz: clock-250000000 {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <250000000>;
clock-output-names = "miscclk_250mhz";
};

- uartspiclk_100mhz: clk100mhz_1 {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <100000000>;
- clock-output-names = "uartspiclk_100mhz";
- };
diff --git a/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi b/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi
index d3d931eb7677..6a073d13478d 100644
--- a/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi
+++ b/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi
@@ -11,6 +11,8 @@ / {
#address-cells = <2>;
#size-cells = <2>;

+ /include/ "amd-seattle-clks.dtsi"
+
gic0: interrupt-controller@e1101000 {
compatible = "arm,gic-400", "arm,cortex-a15-gic";
interrupt-controller;
@@ -51,8 +53,6 @@ smb0: smb {
*/
dma-ranges = <0x0 0x0 0x0 0x0 0x100 0x0>;

- /include/ "amd-seattle-clks.dtsi"
-
sata0: sata@e0300000 {
compatible = "snps,dwc-ahci";
reg = <0 0xe0300000 0 0xf0000>;
diff --git a/arch/arm64/boot/dts/amd/amd-seattle-xgbe-b.dtsi b/arch/arm64/boot/dts/amd/amd-seattle-xgbe-b.dtsi
index 9259e547e2e8..056dd3e35042 100644
--- a/arch/arm64/boot/dts/amd/amd-seattle-xgbe-b.dtsi
+++ b/arch/arm64/boot/dts/amd/amd-seattle-xgbe-b.dtsi
@@ -5,34 +5,6 @@
* Copyright (C) 2015 Advanced Micro Devices, Inc.
*/

- xgmacclk0_dma_250mhz: clk250mhz_0 {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <250000000>;
- clock-output-names = "xgmacclk0_dma_250mhz";
- };
-
- xgmacclk0_ptp_250mhz: clk250mhz_1 {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <250000000>;
- clock-output-names = "xgmacclk0_ptp_250mhz";
- };
-
- xgmacclk1_dma_250mhz: clk250mhz_2 {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <250000000>;
- clock-output-names = "xgmacclk1_dma_250mhz";
- };
-
- xgmacclk1_ptp_250mhz: clk250mhz_3 {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <250000000>;
- clock-output-names = "xgmacclk1_ptp_250mhz";
- };
-
xgmac0: xgmac@e0700000 {
compatible = "amd,xgbe-seattle-v1a";
reg = <0 0xe0700000 0 0x80000>,

--
2.47.2