From: Tony Lindgren <tony@atomide.com>
To: Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@codeaurora.org>,
Tero Kristo <t-kristo@ti.com>
Cc: devicetree@vger.kernel.org, linux-clk@vger.kernel.org,
linux-omap@vger.kernel.org, Rob Herring <robh+dt@kernel.org>
Subject: [PATCH 4/5] ARM: dts: Configure omap4 rng to probe with ti-sysc
Date: Tue, 10 Dec 2019 09:21:07 -0800 [thread overview]
Message-ID: <20191210172108.38868-5-tony@atomide.com> (raw)
In-Reply-To: <20191210172108.38868-1-tony@atomide.com>
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>
---
.../boot/dts/motorola-mapphone-common.dtsi | 5 +++++
arch/arm/boot/dts/omap4-l4.dtsi | 20 ++++++++++++++++---
2 files changed, 22 insertions(+), 3 deletions(-)
diff --git a/arch/arm/boot/dts/motorola-mapphone-common.dtsi b/arch/arm/boot/dts/motorola-mapphone-common.dtsi
--- a/arch/arm/boot/dts/motorola-mapphone-common.dtsi
+++ b/arch/arm/boot/dts/motorola-mapphone-common.dtsi
@@ -650,6 +650,11 @@ OMAP4_IOPAD(0x040, PIN_OUTPUT_PULLDOWN | MUX_MODE3)
};
};
+/* 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>;
diff --git a/arch/arm/boot/dts/omap4-l4.dtsi b/arch/arm/boot/dts/omap4-l4.dtsi
--- a/arch/arm/boot/dts/omap4-l4.dtsi
+++ b/arch/arm/boot/dts/omap4-l4.dtsi
@@ -2002,12 +2002,26 @@ timer11: timer@0 {
};
};
- 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 */
--
2.24.0
next prev parent reply other threads:[~2019-12-10 17:21 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-10 17:21 [PATCH 0/5] Clock changes needed to probe rng on omap4 and 5 Tony Lindgren
2019-12-10 17:21 ` [PATCH 1/5] clk: ti: clkctrl: Fix hidden dependency to node name Tony Lindgren
2019-12-19 20:18 ` Rob Herring
2019-12-30 20:00 ` Stephen Boyd
2019-12-10 17:21 ` [PATCH 2/5] ARM: dts: Add missing omap4 secure clocks Tony Lindgren
2019-12-30 20:00 ` Stephen Boyd
2019-12-10 17:21 ` [PATCH 3/5] ARM: dts: Add missing omap5 " Tony Lindgren
2019-12-30 20:00 ` Stephen Boyd
2019-12-10 17:21 ` Tony Lindgren [this message]
2019-12-10 17:21 ` [PATCH 5/5] ARM: dts: Configure omap5 rng to probe with ti-sysc Tony Lindgren
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