Commit ce5ca149 authored Feb 27, 2020 by Suman Anna Committed by Tony Lindgren Mar 04, 2020

ARM: dts: AM33xx-l4: Update PRUSS interconnect target-module node



The PRU-ICSS present on some AM33xx SoCs has a very unique SYSC
register. The IP also uses a hard-reset line, and requires this
PRCM reset to be deasserted to be able to access any registers.
Update the existing PRUSS interconnect target-module with all
the required properties.

The PRUSS device itself shall be added as a child node to this
interconnect node in the future. PRU-ICSS is not supported on
AM3351/AM3352/AM3354 SoCs though in the AM33xx family, so the
target module node should be disabled in derivative board files
that use any of these SoCs.

Signed-off-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

parent a3e2a6c8

arch/arm/boot/dts/am33xx-l4.dtsi

+18 −3

Original line number	Diff line number	Diff line
		@@ -759,12 +759,27 @@
		ranges = <0x0 0x200000 0x80000>;
		};

		target-module@300000 { /* 0x4a300000, ap 9 04.0 */
		compatible = "ti,sysc";
		status = "disabled";
		pruss_tm: target-module@300000 { /* 0x4a300000, ap 9 04.0 */
		compatible = "ti,sysc-pruss", "ti,sysc";
		reg = <0x326000 0x4>,
		<0x326004 0x4>;
		reg-names = "rev", "sysc";
		ti,sysc-mask = <(SYSC_PRUSS_STANDBY_INIT \|
		SYSC_PRUSS_SUB_MWAIT)>;
		ti,sysc-midle = <SYSC_IDLE_FORCE>,
		<SYSC_IDLE_NO>,
		<SYSC_IDLE_SMART>;
		ti,sysc-sidle = <SYSC_IDLE_FORCE>,
		<SYSC_IDLE_NO>,
		<SYSC_IDLE_SMART>;
		clocks = <&pruss_ocp_clkctrl AM3_PRUSS_OCP_PRUSS_CLKCTRL 0>;
		clock-names = "fck";
		resets = <&prm_per 1>;
		reset-names = "rstctrl";
		#address-cells = <1>;
		#size-cells = <1>;
		ranges = <0x0 0x300000 0x80000>;
		status = "disabled";
		};
		};
		};

Admin message