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[v1,11/11] riscv: dts: microchip: convert clock and reset to use syscon

Message ID 20241002-porous-mangy-4634b6556202@spud (mailing list archive)
State Handled Elsewhere
Headers show
Series Redo PolarFire SoC's mailbox/clock devicestrees and related code | expand

Commit Message

Conor Dooley Oct. 2, 2024, 10:48 a.m. UTC 
From: Conor Dooley <conor.dooley@microchip.com>

The "subblock" clocks and reset registers on PolarFire SoC are located
in the mss-top-sysreg region, alongside pinctrl and interrupt control
functionality. Re-write the devicetree to describe the sys explicitly,
as its own node, rather than as a region of the clock node.
Correspondingly, the phandles to the reset controller must be updated to
the new provider. The drivers will continue to support the old way of
doing things.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
 arch/riscv/boot/dts/microchip/mpfs.dtsi | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)
diff mbox series

Patch

diff --git a/arch/riscv/boot/dts/microchip/mpfs.dtsi b/arch/riscv/boot/dts/microchip/mpfs.dtsi
index f8a45e4f00a0d..08aa4fe03fd30 100644
--- a/arch/riscv/boot/dts/microchip/mpfs.dtsi
+++ b/arch/riscv/boot/dts/microchip/mpfs.dtsi
@@ -251,11 +251,9 @@  pdma: dma-controller@3000000 {
 			#dma-cells = <1>;
 		};
 
-		clkcfg: clkcfg@20002000 {
-			compatible = "microchip,mpfs-clkcfg";
-			reg = <0x0 0x20002000 0x0 0x1000>, <0x0 0x3E001000 0x0 0x1000>;
-			clocks = <&refclk>;
-			#clock-cells = <1>;
+		mss_top_sysreg: syscon@20002000 {
+			compatible = "microchip,mpfs-mss-top-sysreg", "syscon", "simple-mfd";
+			reg = <0x0 0x20002000 0x0 0x1000>;
 			#reset-cells = <1>;
 		};
 
@@ -452,7 +450,7 @@  mac0: ethernet@20110000 {
 			local-mac-address = [00 00 00 00 00 00];
 			clocks = <&clkcfg CLK_MAC0>, <&clkcfg CLK_AHB>;
 			clock-names = "pclk", "hclk";
-			resets = <&clkcfg CLK_MAC0>;
+			resets = <&mss_top_sysreg CLK_MAC0>;
 			status = "disabled";
 		};
 
@@ -466,7 +464,7 @@  mac1: ethernet@20112000 {
 			local-mac-address = [00 00 00 00 00 00];
 			clocks = <&clkcfg CLK_MAC1>, <&clkcfg CLK_AHB>;
 			clock-names = "pclk", "hclk";
-			resets = <&clkcfg CLK_MAC1>;
+			resets = <&mss_top_sysreg CLK_MAC1>;
 			status = "disabled";
 		};
 
@@ -550,5 +548,12 @@  syscontroller_qspi: spi@37020100 {
 			clocks = <&scbclk>;
 			status = "disabled";
 		};
+
+		clkcfg: clkcfg@3e001000 {
+			compatible = "microchip,mpfs-clkcfg";
+			reg = <0x0 0x3e001000 0x0 0x1000>;
+			clocks = <&refclk>;
+			#clock-cells = <1>;
+		};
 	};
 };