Now with an upstream i2c bus driver, we can add the 14 i2c buses that
exist in ASPEED G4 and G5 generation SoCs.
It also adds aliases for the 14 built-in I2C busses to ensure userspace
sees the numbering staring from zero and counting up.
Acked-by: Andrew Jeffery <andrew@xxxxxxxx>
Reviewed-by: Brendan Higgins <brendanhiggins@xxxxxxxxxx>
Signed-off-by: Joel Stanley <joel@xxxxxxxxx>
---
arch/arm/boot/dts/aspeed-g4.dtsi | 256 +++++++++++++++++++++++++++++++++++++++
arch/arm/boot/dts/aspeed-g5.dtsi | 256 +++++++++++++++++++++++++++++++++++++++
2 files changed, 512 insertions(+)
diff --git a/arch/arm/boot/dts/aspeed-g4.dtsi b/arch/arm/boot/dts/aspeed-g4.dtsi
index c2d96b8a5065..b6ae7b62fd03 100644
--- a/arch/arm/boot/dts/aspeed-g4.dtsi
+++ b/arch/arm/boot/dts/aspeed-g4.dtsi
@@ -7,6 +7,23 @@
#size-cells = <1>;
interrupt-parent = <&vic>;
+ aliases {
+ i2c0 = &i2c0;
+ i2c1 = &i2c1;
+ i2c2 = &i2c2;
+ i2c3 = &i2c3;
+ i2c4 = &i2c4;
+ i2c5 = &i2c5;
+ i2c6 = &i2c6;
+ i2c7 = &i2c7;
+ i2c8 = &i2c8;
+ i2c9 = &i2c9;
+ i2c10 = &i2c10;
+ i2c11 = &i2c11;
+ i2c12 = &i2c12;
+ i2c13 = &i2c13;
+ };
+
cpus {
#address-cells = <1>;
#size-cells = <0>;
@@ -235,10 +252,249 @@
no-loopback-test;
status = "disabled";
};
+
+ i2c: i2c@1e78a000 {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x1e78a000 0x1000>;
+ };
};
};
};
+&i2c {
+ i2c_ic: interrupt-controller@0 {
+ #interrupt-cells = <1>;
+ compatible = "aspeed,ast2400-i2c-ic";
+ reg = <0x0 0x40>;
+ interrupts = <12>;
+ interrupt-controller;
+ };
+
+ i2c0: i2c-bus@40 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x40 0x40>;
+ compatible = "aspeed,ast2400-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <0>;
+ interrupt-parent = <&i2c_ic>;
+ status = "disabled";
+ /* Does not need pinctrl properties */
+ };
+
+ i2c1: i2c-bus@80 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x80 0x40>;
+ compatible = "aspeed,ast2400-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <1>;
+ interrupt-parent = <&i2c_ic>;
+ status = "disabled";
+ /* Does not need pinctrl properties */
+ };
+
+ i2c2: i2c-bus@c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0xc0 0x40>;
+ compatible = "aspeed,ast2400-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <2>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c3_default>;
+ status = "disabled";
+ };
+
+ i2c3: i2c-bus@100 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x100 0x40>;
+ compatible = "aspeed,ast2400-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <3>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c4_default>;
+ status = "disabled";
+ };
+
+ i2c4: i2c-bus@140 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x140 0x40>;
+ compatible = "aspeed,ast2400-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <4>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c5_default>;
+ status = "disabled";
+ };
+
+ i2c5: i2c-bus@180 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x180 0x40>;
+ compatible = "aspeed,ast2400-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <5>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c6_default>;
+ status = "disabled";
+ };
+
+ i2c6: i2c-bus@1c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x1c0 0x40>;
+ compatible = "aspeed,ast2400-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <6>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c7_default>;
+ status = "disabled";
+ };
+
+ i2c7: i2c-bus@300 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x300 0x40>;
+ compatible = "aspeed,ast2400-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <7>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c8_default>;
+ status = "disabled";
+ };
+
+ i2c8: i2c-bus@340 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x340 0x40>;
+ compatible = "aspeed,ast2400-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <8>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c9_default>;
+ status = "disabled";
+ };
+
+ i2c9: i2c-bus@380 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x380 0x40>;
+ compatible = "aspeed,ast2400-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <9>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c10_default>;
+ status = "disabled";
+ };
+
+ i2c10: i2c-bus@3c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x3c0 0x40>;
+ compatible = "aspeed,ast2400-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <10>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c11_default>;
+ status = "disabled";
+ };
+
+ i2c11: i2c-bus@400 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x400 0x40>;
+ compatible = "aspeed,ast2400-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <11>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c12_default>;
+ status = "disabled";
+ };
+
+ i2c12: i2c-bus@440 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x440 0x40>;
+ compatible = "aspeed,ast2400-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <12>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c13_default>;
+ status = "disabled";
+ };
+
+ i2c13: i2c-bus@480 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x480 0x40>;
+ compatible = "aspeed,ast2400-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <13>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c14_default>;
+ status = "disabled";
+ };
+};
+
&pinctrl {
pinctrl_acpi_default: acpi_default {
function = "ACPI";
diff --git a/arch/arm/boot/dts/aspeed-g5.dtsi b/arch/arm/boot/dts/aspeed-g5.dtsi
index 9e71c2dac0ba..4c829e915c3e 100644
--- a/arch/arm/boot/dts/aspeed-g5.dtsi
+++ b/arch/arm/boot/dts/aspeed-g5.dtsi
@@ -7,6 +7,23 @@
#size-cells = <1>;
interrupt-parent = <&vic>;
+ aliases {
+ i2c0 = &i2c0;
+ i2c1 = &i2c1;
+ i2c2 = &i2c2;
+ i2c3 = &i2c3;
+ i2c4 = &i2c4;
+ i2c5 = &i2c5;
+ i2c6 = &i2c6;
+ i2c7 = &i2c7;
+ i2c8 = &i2c8;
+ i2c9 = &i2c9;
+ i2c10 = &i2c10;
+ i2c11 = &i2c11;
+ i2c12 = &i2c12;
+ i2c13 = &i2c13;
+ };
+
cpus {
#address-cells = <1>;
#size-cells = <0>;
@@ -315,10 +332,249 @@
no-loopback-test;
status = "disabled";
};
+
+ i2c: i2c@1e78a000 {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x1e78a000 0x1000>;
+ };
};
};
};
+&i2c {
+ i2c_ic: interrupt-controller@0 {
+ #interrupt-cells = <1>;
+ compatible = "aspeed,ast2500-i2c-ic";
+ reg = <0x0 0x40>;
+ interrupts = <12>;
+ interrupt-controller;
+ };
+
+ i2c0: i2c-bus@40 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x40 0x40>;
+ compatible = "aspeed,ast2500-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <0>;
+ interrupt-parent = <&i2c_ic>;
+ status = "disabled";
+ /* Does not need pinctrl properties */
+ };
+
+ i2c1: i2c-bus@80 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x80 0x40>;
+ compatible = "aspeed,ast2500-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <1>;
+ interrupt-parent = <&i2c_ic>;
+ status = "disabled";
+ /* Does not need pinctrl properties */
+ };
+
+ i2c2: i2c-bus@c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0xc0 0x40>;
+ compatible = "aspeed,ast2500-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <2>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c3_default>;
+ status = "disabled";
+ };
+
+ i2c3: i2c-bus@100 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x100 0x40>;
+ compatible = "aspeed,ast2500-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <3>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c4_default>;
+ status = "disabled";
+ };
+
+ i2c4: i2c-bus@140 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x140 0x40>;
+ compatible = "aspeed,ast2500-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <4>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c5_default>;
+ status = "disabled";
+ };
+
+ i2c5: i2c-bus@180 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x180 0x40>;
+ compatible = "aspeed,ast2500-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <5>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c6_default>;
+ status = "disabled";
+ };
+
+ i2c6: i2c-bus@1c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x1c0 0x40>;
+ compatible = "aspeed,ast2500-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <6>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c7_default>;
+ status = "disabled";
+ };
+
+ i2c7: i2c-bus@300 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x300 0x40>;
+ compatible = "aspeed,ast2500-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <7>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c8_default>;
+ status = "disabled";
+ };
+
+ i2c8: i2c-bus@340 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x340 0x40>;
+ compatible = "aspeed,ast2500-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <8>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c9_default>;
+ status = "disabled";
+ };
+
+ i2c9: i2c-bus@380 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x380 0x40>;
+ compatible = "aspeed,ast2500-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <9>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c10_default>;
+ status = "disabled";
+ };
+
+ i2c10: i2c-bus@3c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x3c0 0x40>;
+ compatible = "aspeed,ast2500-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <10>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c11_default>;
+ status = "disabled";
+ };
+
+ i2c11: i2c-bus@400 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x400 0x40>;
+ compatible = "aspeed,ast2500-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <11>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c12_default>;
+ status = "disabled";
+ };
+
+ i2c12: i2c-bus@440 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x440 0x40>;
+ compatible = "aspeed,ast2500-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <12>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c13_default>;
+ status = "disabled";
+ };
+
+ i2c13: i2c-bus@480 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ reg = <0x480 0x40>;
+ compatible = "aspeed,ast2500-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <13>;
+ interrupt-parent = <&i2c_ic>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c14_default>;
+ status = "disabled";
+ };
+};
+
&pinctrl {
pinctrl_acpi_default: acpi_default {
function = "ACPI";
--
2.14.1
--
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