The Amlogic Meson SoCs have most of the internal peripherals organized
in busses. Use them to make the dts easier to read and to avoid
duplicated register (bus) offset definitions.
The bus information is taken from the vendor kernel:
#define IO_CBUS_PHY_BASE 0xc1100000 ///2M
#define IO_AOBUS_PHY_BASE 0xc8100000 ///1M
There are more internal busses (such as the abp bus which seems to
contain audio, HDMI and Mali registers), but since we don't have
drivers for them yet these are not added (yet).
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
---
arch/arm/boot/dts/meson.dtsi | 180 ++++++++++++++++++++++--------------------
arch/arm/boot/dts/meson6.dtsi | 2 -
arch/arm/boot/dts/meson8.dtsi | 116 ++++++++++++++++++---------
3 files changed, 171 insertions(+), 127 deletions(-)
diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi
index 8c77c87660cd..9701bd1bc298 100644
--- a/arch/arm/boot/dts/meson.dtsi
+++ b/arch/arm/boot/dts/meson.dtsi
@@ -65,110 +65,116 @@
#interrupt-cells = <3>;
};
- timer@c1109940 {
- compatible = "amlogic,meson6-timer";
- reg = <0xc1109940 0x18>;
- interrupts = <0 10 1>;
- };
-
soc {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
ranges;
- wdt: watchdog@c1109900 {
- compatible = "amlogic,meson6-wdt";
- reg = <0xc1109900 0x8>;
- interrupts = <0 0 1>;
- };
-
- uart_AO: serial@c81004c0 {
- compatible = "amlogic,meson-uart";
- reg = <0xc81004c0 0x18>;
- interrupts = <0 90 1>;
- clocks = <&clk81>;
- status = "disabled";
- };
-
- uart_A: serial@c11084c0 {
- compatible = "amlogic,meson-uart";
- reg = <0xc11084c0 0x18>;
- interrupts = <0 26 1>;
- clocks = <&clk81>;
- status = "disabled";
- };
-
- uart_B: serial@c11084dc {
- compatible = "amlogic,meson-uart";
- reg = <0xc11084dc 0x18>;
- interrupts = <0 75 1>;
- clocks = <&clk81>;
- status = "disabled";
- };
-
- uart_C: serial@c1108700 {
- compatible = "amlogic,meson-uart";
- reg = <0xc1108700 0x18>;
- interrupts = <0 93 1>;
- clocks = <&clk81>;
- status = "disabled";
- };
-
- i2c_AO: i2c@c8100500 {
- compatible = "amlogic,meson6-i2c";
- reg = <0xc8100500 0x20>;
- interrupts = <0 92 1>;
- clocks = <&clk81>;
- #address-cells = <1>;
- #size-cells = <0>;
- status = "disabled";
- };
-
- i2c_A: i2c@c1108500 {
- compatible = "amlogic,meson6-i2c";
- reg = <0xc1108500 0x20>;
- interrupts = <0 21 1>;
- clocks = <&clk81>;
- #address-cells = <1>;
- #size-cells = <0>;
- status = "disabled";
- };
-
- i2c_B: i2c@c11087c0 {
- compatible = "amlogic,meson6-i2c";
- reg = <0xc11087c0 0x20>;
- interrupts = <0 128 1>;
- clocks = <&clk81>;
+ cbus: cbus@c1100000 {
+ compatible = "simple-bus";
+ reg = <0xc1100000 0x200000>;
#address-cells = <1>;
- #size-cells = <0>;
- status = "disabled";
+ #size-cells = <1>;
+ ranges = <0x0 0xc1100000 0x200000>;
+
+ uart_A: serial@84c0 {
+ compatible = "amlogic,meson-uart";
+ reg = <0x84c0 0x18>;
+ interrupts = <0 26 1>;
+ status = "disabled";
+ };
+
+ uart_B: serial@84dc {
+ compatible = "amlogic,meson-uart";
+ reg = <0x84dc 0x18>;
+ interrupts = <0 75 1>;
+ status = "disabled";
+ };
+
+ i2c_A: i2c@8500 {
+ compatible = "amlogic,meson6-i2c";
+ reg = <0x8500 0x20>;
+ interrupts = <0 21 1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ uart_C: serial@8700 {
+ compatible = "amlogic,meson-uart";
+ reg = <0x8700 0x18>;
+ interrupts = <0 93 1>;
+ status = "disabled";
+ };
+
+ i2c_B: i2c@87c0 {
+ compatible = "amlogic,meson6-i2c";
+ reg = <0x87c0 0x20>;
+ interrupts = <0 128 1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ spifc: spi@8c80 {
+ compatible = "amlogic,meson6-spifc";
+ reg = <0x8c80 0x80>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ wdt: watchdog@9900 {
+ compatible = "amlogic,meson6-wdt";
+ reg = <0x9900 0x8>;
+ interrupts = <0 0 1>;
+ };
+
+ timer@9940 {
+ compatible = "amlogic,meson6-timer";
+ reg = <0x9940 0x18>;
+ interrupts = <0 10 1>;
+ };
};
- ir_receiver: ir-receiver@c8100480 {
- compatible= "amlogic,meson6-ir";
- reg = <0xc8100480 0x20>;
- interrupts = <0 15 1>;
- status = "disabled";
- };
-
- spifc: spi@c1108c80 {
- compatible = "amlogic,meson6-spifc";
- reg = <0xc1108c80 0x80>;
+ aobus: aobus@c8100000 {
+ compatible = "simple-bus";
+ reg = <0xc8100000 0x100000>;
#address-cells = <1>;
- #size-cells = <0>;
- clocks = <&clk81>;
- status = "disabled";
+ #size-cells = <1>;
+ ranges = <0x0 0xc8100000 0x100000>;
+
+ ir_receiver: ir-receiver@480 {
+ compatible= "amlogic,meson6-ir";
+ reg = <0x480 0x20>;
+ interrupts = <0 15 1>;
+ status = "disabled";
+ };
+
+ uart_AO: serial@4c0 {
+ compatible = "amlogic,meson-uart";
+ reg = <0x4c0 0x18>;
+ interrupts = <0 90 1>;
+ status = "disabled";
+ };
+
+ i2c_AO: i2c@500 {
+ compatible = "amlogic,meson6-i2c";
+ reg = <0x500 0x20>;
+ interrupts = <0 92 1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
};
ethmac: ethernet@c9410000 {
compatible = "amlogic,meson6-dwmac", "snps,dwmac";
reg = <0xc9410000 0x10000
- 0xc1108108 0x4>;
+ 0xc1108108 0x4>;
interrupts = <0 8 1>;
interrupt-names = "macirq";
- clocks = <&clk81>;
- clock-names = "stmmaceth";
status = "disabled";
};
};
diff --git a/arch/arm/boot/dts/meson6.dtsi b/arch/arm/boot/dts/meson6.dtsi
index 8b33be15af94..b0fc91ffd6a1 100644
--- a/arch/arm/boot/dts/meson6.dtsi
+++ b/arch/arm/boot/dts/meson6.dtsi
@@ -51,8 +51,6 @@
model = "Amlogic Meson6 SoC";
compatible = "amlogic,meson6";
- interrupt-parent = <&gic>;
-
cpus {
#address-cells = <1>;
#size-cells = <0>;
diff --git a/arch/arm/boot/dts/meson8.dtsi b/arch/arm/boot/dts/meson8.dtsi
index ebc763eab195..5eaaf067c76a 100644
--- a/arch/arm/boot/dts/meson8.dtsi
+++ b/arch/arm/boot/dts/meson8.dtsi
@@ -50,8 +50,6 @@
model = "Amlogic Meson8 SoC";
compatible = "amlogic,meson8";
- interrupt-parent = <&gic>;
-
cpus {
#address-cells = <1>;
#size-cells = <0>;
@@ -91,18 +89,55 @@
clock-frequency = <141666666>;
};
- pinctrl_cbus: pinctrl@c1109880 {
+}; /* end of / */
+
+&aobus {
+ pinctrl_aobus: pinctrl@84 {
+ compatible = "amlogic,meson8-aobus-pinctrl";
+ reg = <0x84 0xc>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ gpio_ao: ao-bank@14 {
+ reg = <0x14 0x4>,
+ <0x2c 0x4>,
+ <0x24 0x8>;
+ reg-names = "mux", "pull", "gpio";
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl_aobus 0 120 16>;
+ };
+
+ uart_ao_a_pins: uart_ao_a {
+ mux {
+ groups = "uart_tx_ao_a", "uart_rx_ao_a";
+ function = "uart_ao";
+ };
+ };
+
+ i2c_ao_pins: i2c_mst_ao {
+ mux {
+ groups = "i2c_mst_sck_ao", "i2c_mst_sda_ao";
+ function = "i2c_mst_ao";
+ };
+ };
+ };
+};
+
+&cbus {
+ pinctrl_cbus: pinctrl@9880 {
compatible = "amlogic,meson8-cbus-pinctrl";
- reg = <0xc1109880 0x10>;
+ reg = <0x9880 0x10>;
#address-cells = <1>;
#size-cells = <1>;
ranges;
- gpio: banks@c11080b0 {
- reg = <0xc11080b0 0x28>,
- <0xc11080e8 0x18>,
- <0xc1108120 0x18>,
- <0xc1108030 0x30>;
+ gpio: banks@80b0 {
+ reg = <0x80b0 0x28>,
+ <0x80e8 0x18>,
+ <0x8120 0x18>,
+ <0x8030 0x30>;
reg-names = "mux", "pull", "pull-enable", "gpio";
gpio-controller;
#gpio-cells = <2>;
@@ -134,36 +169,41 @@
};
};
};
+};
- pinctrl_aobus: pinctrl@c8100084 {
- compatible = "amlogic,meson8-aobus-pinctrl";
- reg = <0xc8100084 0xc>;
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
+ðmac {
+ clocks = <&clk81>;
+ clock-names = "stmmaceth";
+};
- gpio_ao: ao-bank@c1108030 {
- reg = <0xc8100014 0x4>,
- <0xc810002c 0x4>,
- <0xc8100024 0x8>;
- reg-names = "mux", "pull", "gpio";
- gpio-controller;
- #gpio-cells = <2>;
- gpio-ranges = <&pinctrl_aobus 0 120 16>;
- };
+&i2c_AO {
+ clocks = <&clk81>;
+};
- uart_ao_a_pins: uart_ao_a {
- mux {
- groups = "uart_tx_ao_a", "uart_rx_ao_a";
- function = "uart_ao";
- };
- };
+&i2c_A {
+ clocks = <&clk81>;
+};
- i2c_ao_pins: i2c_mst_ao {
- mux {
- groups = "i2c_mst_sck_ao", "i2c_mst_sda_ao";
- function = "i2c_mst_ao";
- };
- };
- };
-}; /* end of / */
+&i2c_B {
+ clocks = <&clk81>;
+};
+
+&spifc {
+ clocks = <&clk81>;
+};
+
+&uart_AO {
+ clocks = <&clk81>;
+};
+
+&uart_A {
+ clocks = <&clk81>;
+};
+
+&uart_B {
+ clocks = <&clk81>;
+};
+
+&uart_C {
+ clocks = <&clk81>;
+};
--
2.12.2
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
