[PATCH v3 4/5] arm64: dts: rockchip: Add clock generators for RK3528 SoC

Yao Zi
2025-02-17T06:13:26Z

Add dt node for RK3528 clock and reset unit. Clock "gmac0_clk" is
generated by internal Ethernet phy, a fixed clock node is added as a
placeholder to avoid orphans.

Signed-off-by: Yao Zi <ziyao@disroot.org>
---
arch/arm64/boot/dts/rockchip/rk3528.dtsi | 51 ++++++++++++++++++++++++
1 file changed, 51 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3528.dtsi b/arch/arm64/boot/dts/rockchip/rk3528.dtsi
index e58faa985aa4..37fd40377076 100644
--- a/arch/arm64/boot/dts/rockchip/rk3528.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3528.dtsi
@@ -6,6 +6,7 @@

#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/clock/rockchip,rk3528-cru.h>

/ {
compatible = "rockchip,rk3528";
@@ -95,6 +96,13 @@ xin24m: clock-xin24m {
#clock-cells = <0>;
};

+ gmac0_clk: clock-gmac50m {
+ compatible = "fixed-clock";
+ clock-frequency = <50000000>;
+ clock-output-names = "gmac0";
+ #clock-cells = <0>;
+ };
+
soc {
compatible = "simple-bus";
ranges = <0x0 0xfe000000 0x0 0xfe000000 0x0 0x2000000>;
@@ -114,6 +122,49 @@ gic: interrupt-controller@fed01000 {
#interrupt-cells = <3>;
};

+ cru: clock-controller@ff4a0000 {
+ compatible = "rockchip,rk3528-cru";
+ reg = <0x0 0xff4a0000 0x0 0x30000>;
+ assigned-clocks =
+ <&cru XIN_OSC0_DIV>, <&cru PLL_GPLL>,
+ <&cru PLL_PPLL>, <&cru PLL_CPLL>,
+ <&cru ARMCLK>, <&cru CLK_MATRIX_250M_SRC>,
+ <&cru CLK_MATRIX_500M_SRC>,
+ <&cru CLK_MATRIX_50M_SRC>,
+ <&cru CLK_MATRIX_100M_SRC>,
+ <&cru CLK_MATRIX_150M_SRC>,
+ <&cru CLK_MATRIX_200M_SRC>,
+ <&cru CLK_MATRIX_300M_SRC>,
+ <&cru CLK_MATRIX_339M_SRC>,
+ <&cru CLK_MATRIX_400M_SRC>,
+ <&cru CLK_MATRIX_600M_SRC>,
+ <&cru CLK_PPLL_50M_MATRIX>,
+ <&cru CLK_PPLL_100M_MATRIX>,
+ <&cru CLK_PPLL_125M_MATRIX>,
+ <&cru ACLK_BUS_VOPGL_ROOT>;
+ assigned-clock-rates =
+ <32768>, <1188000000>,
+ <1000000000>, <996000000>,
+ <408000000>, <250000000>,
+ <500000000>,
+ <50000000>,
+ <100000000>,
+ <150000000>,
+ <200000000>,
+ <300000000>,
+ <340000000>,
+ <400000000>,
+ <600000000>,
+ <50000000>,
+ <100000000>,
+ <125000000>,
+ <500000000>;
+ clocks = <&xin24m>, <&gmac0_clk>;
+ clock-names = "xin24m", "gmac0";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
uart0: serial@ff9f0000 {
compatible = "rockchip,rk3528-uart", "snps,dw-apb-uart";
reg = <0x0 0xff9f0000 0x0 0x100>;
--
2.48.1