* Tony Lindgren [off-list ref] [210126 12:43]:

We can now probe devices with device tree only configuration using
ti-sysc interconnect target module driver. Let's configure the
module, but keep the legacy "ti,hwmods" peroperty to avoid new boot
time warnings. The legacy property will be removed in later patches
together with the legacy platform data.

...

+		target-module@48210000 {
+			compatible = "ti,sysc-omap4-simple", "ti,sysc";
+			ti,hwmods = "mpu";
+			power-domains = <&prm_mpu>;
+			clocks = <&mpu_clkctrl DRA7_MPU_CLKCTRL 0>;
+			clock-names = "fck";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0 0 0x1f0000>;
+
+			mpu {
+				compatible = "ti,omap5-mpu";
+			};
+		};

I noticed the ranges property above is wrong, it should not be 0.
That range is currently unused thoug. Updated patch below.

Regards,

Tony

8< ----------------------
From tony Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Mon, 8 Mar 2021 10:47:59 +0200
Subject: [PATCH] ARM: dts: Configure interconnect target module for dra7
 mpu

We can now probe devices with device tree only configuration using
ti-sysc interconnect target module driver.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/dra7.dtsi | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi

@@ -124,18 +124,6 @@ opp_high@1500000000 {
 		};
 	};
 
-	/*
-	 * The soc node represents the soc top level view. It is used for IPs
-	 * that are not memory mapped in the MPU view or for the MPU itself.
-	 */
-	soc {
-		compatible = "ti,omap-infra";
-		mpu {
-			compatible = "ti,omap5-mpu";
-			ti,hwmods = "mpu";
-		};
-	};
-
 	/*
 	 * XXX: Use a flat representation of the SOC interconnect.
 	 * The real OMAP interconnect network is quite complex.

@@ -165,6 +153,21 @@ l4_wkup: interconnect@4ae00000 {
 		};
 		l4_per1: interconnect@48000000 {
 		};
+
+		target-module@48210000 {
+			compatible = "ti,sysc-omap4-simple", "ti,sysc";
+			power-domains = <&prm_mpu>;
+			clocks = <&mpu_clkctrl DRA7_MPU_CLKCTRL 0>;
+			clock-names = "fck";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0 0x48210000 0x1f0000>;
+
+			mpu {
+				compatible = "ti,omap5-mpu";
+			};
+		};
+
 		l4_per2: interconnect@48400000 {
 		};
 		l4_per3: interconnect@48800000 {

-- 
2.30.1