ARM: dts: Configure omap4 rng to probe with ti-sysc (fbb8bb83) · Commits · 戴 / test

Add RNG interconnect data for omap4 similar to what dra7 has. The clock is OMAP4_CM_L4SEC_RNG_CLKCTRL_OFFSET at offset address 0x01c0, which matches what dra7 also has with DRA7_L4SEC_CLKCTRL_INDEX(0x1c0). Note that we need to also add the related l4_secure clock entries. I've only added RNG, the others can be added as they get tested. They are probably very similar to what we already have for dra7 in dra7_l4sec_clkctrl_regs[]. With the clock tagged CLKF_SOC_NONSEC, clock is set disabled for secure devices and clk_get() will fail. Additionally we disable the RNG target module on droid4 to avoid introducing new boot time warnings. Cc: devicetree@vger.kernel.org Cc: Rob Herring <robh+dt@kernel.org> Signed-off-by:

Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/motorola-mapphone-common.dtsi

+5 −0

Original line number	Diff line number	Diff line
		@@ -650,6 +650,11 @@
		};
		};

		/* RNG is used by secure mode and not accessible */
		&rng_target {
		status = "disabled";
		};

		/* Configure pwm clock source for timers 8 & 9 */
		&timer8 {
		assigned-clocks = <&abe_clkctrl OMAP4_TIMER8_CLKCTRL 24>;

arch/arm/boot/dts/omap4-l4.dtsi

+17 −3

Original line number	Diff line number	Diff line
		@@ -2002,12 +2002,26 @@
		};
		};

		target-module@90000 { /* 0x48090000, ap 57 2a.0 */
		compatible = "ti,sysc";
		status = "disabled";
		rng_target: target-module@90000 { /* 0x48090000, ap 57 2a.0 */
		compatible = "ti,sysc-omap2", "ti,sysc";
		reg = <0x91fe0 0x4>,
		<0x91fe4 0x4>;
		reg-names = "rev", "sysc";
		ti,sysc-mask = <(SYSC_OMAP2_AUTOIDLE)>;
		ti,sysc-sidle = <SYSC_IDLE_FORCE>,
		<SYSC_IDLE_NO>;
		/* Domains (P, C): l4per_pwrdm, l4_secure_clkdm */
		clocks = <&l4_secure_clkctrl OMAP4_RNG_CLKCTRL 0>;
		clock-names = "fck";
		#address-cells = <1>;
		#size-cells = <1>;
		ranges = <0x0 0x90000 0x2000>;

		rng: rng@0 {
		compatible = "ti,omap4-rng";
		reg = <0x0 0x2000>;
		interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;
		};
		};

		target-module@96000 { /* 0x48096000, ap 37 26.0 */

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