[PATCH v8 3/3] arm64: dts: st: add rcc support in stm32mp251

gabriel.fernandez at foss.st.com gabriel.fernandez at foss.st.com
Wed Jan 10 23:15:36 PST 2024


From: Gabriel Fernandez <gabriel.fernandez at foss.st.com>

Add RCC support to manage clocks and resets on the STM32MP251.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez at foss.st.com>
---
 arch/arm64/boot/dts/st/stm32mp251.dtsi | 132 ++++++++++++++++++++-----
 1 file changed, 108 insertions(+), 24 deletions(-)

diff --git a/arch/arm64/boot/dts/st/stm32mp251.dtsi b/arch/arm64/boot/dts/st/stm32mp251.dtsi
index 96859d098ef8..38ff2c819d17 100644
--- a/arch/arm64/boot/dts/st/stm32mp251.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp251.dtsi
@@ -3,7 +3,9 @@
  * Copyright (C) STMicroelectronics 2023 - All Rights Reserved
  * Author: Alexandre Torgue <alexandre.torgue at foss.st.com> for STMicroelectronics.
  */
+#include <dt-bindings/clock/st,stm32mp25-rcc.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/reset/st,stm32mp25-rcc.h>
 
 / {
 	#address-cells = <2>;
@@ -35,22 +37,16 @@ arm_wdt: watchdog {
 	};
 
 	clocks {
-		ck_flexgen_08: ck-flexgen-08 {
+		clk_rcbsec: clk-rcbsec {
 			#clock-cells = <0>;
 			compatible = "fixed-clock";
-			clock-frequency = <100000000>;
+			clock-frequency = <64000000>;
 		};
 
-		ck_flexgen_51: ck-flexgen-51 {
+		clk_dsi_txbyte: txbyteclk {
 			#clock-cells = <0>;
 			compatible = "fixed-clock";
-			clock-frequency = <200000000>;
-		};
-
-		ck_icn_ls_mcu: ck-icn-ls-mcu {
-			#clock-cells = <0>;
-			compatible = "fixed-clock";
-			clock-frequency = <200000000>;
+			clock-frequency = <0>;
 		};
 	};
 
@@ -122,7 +118,7 @@ usart2: serial at 400e0000 {
 				compatible = "st,stm32h7-uart";
 				reg = <0x400e0000 0x400>;
 				interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
-				clocks = <&ck_flexgen_08>;
+				clocks = <&rcc CK_KER_USART2>;
 				status = "disabled";
 			};
 
@@ -131,7 +127,7 @@ sdmmc1: mmc at 48220000 {
 				arm,primecell-periphid = <0x00353180>;
 				reg = <0x48220000 0x400>, <0x44230400 0x8>;
 				interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
-				clocks = <&ck_flexgen_51>;
+				clocks = <&rcc CK_KER_SDMMC1 >;
 				clock-names = "apb_pclk";
 				cap-sd-highspeed;
 				cap-mmc-highspeed;
@@ -156,6 +152,94 @@ package_otp at 1e8 {
 			};
 		};
 
+		rcc: clock-controller at 44200000 {
+			compatible = "st,stm32mp25-rcc";
+			reg = <0x44200000 0x10000>;
+			#clock-cells = <1>;
+			#reset-cells = <1>;
+			clocks =
+				<&scmi_clk CK_SCMI_HSE>,
+				<&scmi_clk CK_SCMI_HSI>,
+				<&scmi_clk CK_SCMI_MSI>,
+				<&scmi_clk CK_SCMI_LSE>,
+				<&scmi_clk CK_SCMI_LSI>,
+				<&scmi_clk CK_SCMI_HSE_DIV2>,
+				<&scmi_clk CK_SCMI_ICN_HS_MCU>,
+				<&scmi_clk CK_SCMI_ICN_LS_MCU>,
+				<&scmi_clk CK_SCMI_ICN_SDMMC>,
+				<&scmi_clk CK_SCMI_ICN_DDR>,
+				<&scmi_clk CK_SCMI_ICN_DISPLAY>,
+				<&scmi_clk CK_SCMI_ICN_HSL>,
+				<&scmi_clk CK_SCMI_ICN_NIC>,
+				<&scmi_clk CK_SCMI_ICN_VID>,
+				<&scmi_clk CK_SCMI_FLEXGEN_07>,
+				<&scmi_clk CK_SCMI_FLEXGEN_08>,
+				<&scmi_clk CK_SCMI_FLEXGEN_09>,
+				<&scmi_clk CK_SCMI_FLEXGEN_10>,
+				<&scmi_clk CK_SCMI_FLEXGEN_11>,
+				<&scmi_clk CK_SCMI_FLEXGEN_12>,
+				<&scmi_clk CK_SCMI_FLEXGEN_13>,
+				<&scmi_clk CK_SCMI_FLEXGEN_14>,
+				<&scmi_clk CK_SCMI_FLEXGEN_15>,
+				<&scmi_clk CK_SCMI_FLEXGEN_16>,
+				<&scmi_clk CK_SCMI_FLEXGEN_17>,
+				<&scmi_clk CK_SCMI_FLEXGEN_18>,
+				<&scmi_clk CK_SCMI_FLEXGEN_19>,
+				<&scmi_clk CK_SCMI_FLEXGEN_20>,
+				<&scmi_clk CK_SCMI_FLEXGEN_21>,
+				<&scmi_clk CK_SCMI_FLEXGEN_22>,
+				<&scmi_clk CK_SCMI_FLEXGEN_23>,
+				<&scmi_clk CK_SCMI_FLEXGEN_24>,
+				<&scmi_clk CK_SCMI_FLEXGEN_25>,
+				<&scmi_clk CK_SCMI_FLEXGEN_26>,
+				<&scmi_clk CK_SCMI_FLEXGEN_27>,
+				<&scmi_clk CK_SCMI_FLEXGEN_28>,
+				<&scmi_clk CK_SCMI_FLEXGEN_29>,
+				<&scmi_clk CK_SCMI_FLEXGEN_30>,
+				<&scmi_clk CK_SCMI_FLEXGEN_31>,
+				<&scmi_clk CK_SCMI_FLEXGEN_32>,
+				<&scmi_clk CK_SCMI_FLEXGEN_33>,
+				<&scmi_clk CK_SCMI_FLEXGEN_34>,
+				<&scmi_clk CK_SCMI_FLEXGEN_35>,
+				<&scmi_clk CK_SCMI_FLEXGEN_36>,
+				<&scmi_clk CK_SCMI_FLEXGEN_37>,
+				<&scmi_clk CK_SCMI_FLEXGEN_38>,
+				<&scmi_clk CK_SCMI_FLEXGEN_39>,
+				<&scmi_clk CK_SCMI_FLEXGEN_40>,
+				<&scmi_clk CK_SCMI_FLEXGEN_41>,
+				<&scmi_clk CK_SCMI_FLEXGEN_42>,
+				<&scmi_clk CK_SCMI_FLEXGEN_43>,
+				<&scmi_clk CK_SCMI_FLEXGEN_44>,
+				<&scmi_clk CK_SCMI_FLEXGEN_45>,
+				<&scmi_clk CK_SCMI_FLEXGEN_46>,
+				<&scmi_clk CK_SCMI_FLEXGEN_47>,
+				<&scmi_clk CK_SCMI_FLEXGEN_48>,
+				<&scmi_clk CK_SCMI_FLEXGEN_49>,
+				<&scmi_clk CK_SCMI_FLEXGEN_50>,
+				<&scmi_clk CK_SCMI_FLEXGEN_51>,
+				<&scmi_clk CK_SCMI_FLEXGEN_52>,
+				<&scmi_clk CK_SCMI_FLEXGEN_53>,
+				<&scmi_clk CK_SCMI_FLEXGEN_54>,
+				<&scmi_clk CK_SCMI_FLEXGEN_55>,
+				<&scmi_clk CK_SCMI_FLEXGEN_56>,
+				<&scmi_clk CK_SCMI_FLEXGEN_57>,
+				<&scmi_clk CK_SCMI_FLEXGEN_58>,
+				<&scmi_clk CK_SCMI_FLEXGEN_59>,
+				<&scmi_clk CK_SCMI_FLEXGEN_60>,
+				<&scmi_clk CK_SCMI_FLEXGEN_61>,
+				<&scmi_clk CK_SCMI_FLEXGEN_62>,
+				<&scmi_clk CK_SCMI_FLEXGEN_63>,
+				<&scmi_clk CK_SCMI_ICN_APB1>,
+				<&scmi_clk CK_SCMI_ICN_APB2>,
+				<&scmi_clk CK_SCMI_ICN_APB3>,
+				<&scmi_clk CK_SCMI_ICN_APB4>,
+				<&scmi_clk CK_SCMI_ICN_APBDBG>,
+				<&scmi_clk CK_SCMI_TIMG1>,
+				<&scmi_clk CK_SCMI_TIMG2>,
+				<&scmi_clk CK_SCMI_PLL3>,
+				<&clk_dsi_txbyte>;
+		};
+
 		syscfg: syscon at 44230000 {
 			compatible = "st,stm32mp25-syscfg", "syscon";
 			reg = <0x44230000 0x10000>;
@@ -174,7 +258,7 @@ gpioa: gpio at 44240000 {
 				interrupt-controller;
 				#interrupt-cells = <2>;
 				reg = <0x0 0x400>;
-				clocks = <&ck_icn_ls_mcu>;
+				clocks = <&scmi_clk CK_SCMI_GPIOA>;
 				st,bank-name = "GPIOA";
 				status = "disabled";
 			};
@@ -185,7 +269,7 @@ gpiob: gpio at 44250000 {
 				interrupt-controller;
 				#interrupt-cells = <2>;
 				reg = <0x10000 0x400>;
-				clocks = <&ck_icn_ls_mcu>;
+				clocks = <&scmi_clk CK_SCMI_GPIOB>;
 				st,bank-name = "GPIOB";
 				status = "disabled";
 			};
@@ -196,7 +280,7 @@ gpioc: gpio at 44260000 {
 				interrupt-controller;
 				#interrupt-cells = <2>;
 				reg = <0x20000 0x400>;
-				clocks = <&ck_icn_ls_mcu>;
+				clocks = <&scmi_clk CK_SCMI_GPIOC>;
 				st,bank-name = "GPIOC";
 				status = "disabled";
 			};
@@ -207,7 +291,7 @@ gpiod: gpio at 44270000 {
 				interrupt-controller;
 				#interrupt-cells = <2>;
 				reg = <0x30000 0x400>;
-				clocks = <&ck_icn_ls_mcu>;
+				clocks = <&scmi_clk CK_SCMI_GPIOD>;
 				st,bank-name = "GPIOD";
 				status = "disabled";
 			};
@@ -218,7 +302,7 @@ gpioe: gpio at 44280000 {
 				interrupt-controller;
 				#interrupt-cells = <2>;
 				reg = <0x40000 0x400>;
-				clocks = <&ck_icn_ls_mcu>;
+				clocks = <&scmi_clk CK_SCMI_GPIOE>;
 				st,bank-name = "GPIOE";
 				status = "disabled";
 			};
@@ -229,7 +313,7 @@ gpiof: gpio at 44290000 {
 				interrupt-controller;
 				#interrupt-cells = <2>;
 				reg = <0x50000 0x400>;
-				clocks = <&ck_icn_ls_mcu>;
+				clocks = <&scmi_clk CK_SCMI_GPIOF>;
 				st,bank-name = "GPIOF";
 				status = "disabled";
 			};
@@ -240,7 +324,7 @@ gpiog: gpio at 442a0000 {
 				interrupt-controller;
 				#interrupt-cells = <2>;
 				reg = <0x60000 0x400>;
-				clocks = <&ck_icn_ls_mcu>;
+				clocks = <&scmi_clk CK_SCMI_GPIOG>;
 				st,bank-name = "GPIOG";
 				status = "disabled";
 			};
@@ -251,7 +335,7 @@ gpioh: gpio at 442b0000 {
 				interrupt-controller;
 				#interrupt-cells = <2>;
 				reg = <0x70000 0x400>;
-				clocks = <&ck_icn_ls_mcu>;
+				clocks = <&scmi_clk CK_SCMI_GPIOH>;
 				st,bank-name = "GPIOH";
 				status = "disabled";
 			};
@@ -262,7 +346,7 @@ gpioi: gpio at 442c0000 {
 				interrupt-controller;
 				#interrupt-cells = <2>;
 				reg = <0x80000 0x400>;
-				clocks = <&ck_icn_ls_mcu>;
+				clocks = <&scmi_clk CK_SCMI_GPIOI>;
 				st,bank-name = "GPIOI";
 				status = "disabled";
 			};
@@ -273,7 +357,7 @@ gpioj: gpio at 442d0000 {
 				interrupt-controller;
 				#interrupt-cells = <2>;
 				reg = <0x90000 0x400>;
-				clocks = <&ck_icn_ls_mcu>;
+				clocks = <&scmi_clk CK_SCMI_GPIOJ>;
 				st,bank-name = "GPIOJ";
 				status = "disabled";
 			};
@@ -284,7 +368,7 @@ gpiok: gpio at 442e0000 {
 				interrupt-controller;
 				#interrupt-cells = <2>;
 				reg = <0xa0000 0x400>;
-				clocks = <&ck_icn_ls_mcu>;
+				clocks = <&scmi_clk CK_SCMI_GPIOK>;
 				st,bank-name = "GPIOK";
 				status = "disabled";
 			};
@@ -303,7 +387,7 @@ gpioz: gpio at 46200000 {
 				interrupt-controller;
 				#interrupt-cells = <2>;
 				reg = <0 0x400>;
-				clocks = <&ck_icn_ls_mcu>;
+				clocks = <&scmi_clk CK_SCMI_GPIOZ>;
 				st,bank-name = "GPIOZ";
 				st,bank-ioport = <11>;
 				status = "disabled";
-- 
2.25.1




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