[PATCH 2/6] ARM: dts: meson: group the Cortex-A5 / Cortex-A9 peripherals

From: Martin Blumenstingl
Date: Fri Nov 23 2018 - 14:53:34 EST


The public Meson8b (S805) datasheet describes a memory region called "A9
Periph base" which starts at 0xC4300000 and ends at 0xC430FFFF. Add a
simple-bus node and move all peripherals that are part of this memory
region.
This makes the .dts a bit easier to read. No functional changes.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
---
arch/arm/boot/dts/meson.dtsi | 24 ++++++++++++++++--------
arch/arm/boot/dts/meson8.dtsi | 12 +++++++-----
arch/arm/boot/dts/meson8b.dtsi | 12 +++++++-----
3 files changed, 30 insertions(+), 18 deletions(-)

diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi
index 0839da07a75c..e4645f612712 100644
--- a/arch/arm/boot/dts/meson.dtsi
+++ b/arch/arm/boot/dts/meson.dtsi
@@ -59,14 +59,6 @@
cache-level = <2>;
};

- gic: interrupt-controller@c4301000 {
- compatible = "arm,cortex-a9-gic";
- reg = <0xc4301000 0x1000>,
- <0xc4300100 0x0100>;
- interrupt-controller;
- #interrupt-cells = <3>;
- };
-
soc {
compatible = "simple-bus";
#address-cells = <1>;
@@ -207,6 +199,22 @@
};
};

+ periph: bus@c4300000 {
+ compatible = "simple-bus";
+ reg = <0xc4300000 0x10000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0xc4300000 0x10000>;
+
+ gic: interrupt-controller@1000 {
+ compatible = "arm,cortex-a9-gic";
+ reg = <0x1000 0x1000>,
+ <0x100 0x100>;
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ };
+ };
+
aobus: aobus@c8100000 {
compatible = "simple-bus";
reg = <0xc8100000 0x100000>;
diff --git a/arch/arm/boot/dts/meson8.dtsi b/arch/arm/boot/dts/meson8.dtsi
index 3be5fbd07997..28b9f6779993 100644
--- a/arch/arm/boot/dts/meson8.dtsi
+++ b/arch/arm/boot/dts/meson8.dtsi
@@ -129,11 +129,6 @@
no-map;
};
};
-
- scu@c4300000 {
- compatible = "arm,cortex-a9-scu";
- reg = <0xc4300000 0x100>;
- };
}; /* end of / */

&aobus {
@@ -362,6 +357,13 @@
arm,shared-override;
};

+&periph {
+ scu@0 {
+ compatible = "arm,cortex-a9-scu";
+ reg = <0x0 0x100>;
+ };
+};
+
&pwm_ab {
compatible = "amlogic,meson8-pwm", "amlogic,meson8b-pwm";
};
diff --git a/arch/arm/boot/dts/meson8b.dtsi b/arch/arm/boot/dts/meson8b.dtsi
index 587a855f872b..6b097ab8637f 100644
--- a/arch/arm/boot/dts/meson8b.dtsi
+++ b/arch/arm/boot/dts/meson8b.dtsi
@@ -112,11 +112,6 @@
no-map;
};
};
-
- scu@c4300000 {
- compatible = "arm,cortex-a5-scu";
- reg = <0xc4300000 0x100>;
- };
}; /* end of / */

&aobus {
@@ -349,6 +344,13 @@
arm,shared-override;
};

+&periph {
+ scu@0 {
+ compatible = "arm,cortex-a5-scu";
+ reg = <0x0 0x100>;
+ };
+};
+
&pwm_ab {
compatible = "amlogic,meson8b-pwm";
};
--
2.19.2