[PATCH 3/8] ARM: dts: aspeed: Add I2C buses
Joel Stanley
joel at jms.id.au
Thu Sep 28 00:51:44 PDT 2017
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.
Signed-off-by: Joel Stanley <joel at jms.id.au>
---
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 a4579498fc25..f8611d5a6465 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 at 1e78a000 {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x1e78a000 0x1000>;
+ };
};
};
};
+&i2c {
+ i2c_ic: interrupt-controller at 0 {
+ #interrupt-cells = <1>;
+ compatible = "aspeed,ast2400-i2c-ic";
+ reg = <0x0 0x40>;
+ interrupts = <12>;
+ interrupt-controller;
+ };
+
+ i2c0: i2c-bus at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 f6430b313f90..de127370131d 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 at 1e78a000 {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x1e78a000 0x1000>;
+ };
};
};
};
+&i2c {
+ i2c_ic: interrupt-controller at 0 {
+ #interrupt-cells = <1>;
+ compatible = "aspeed,ast2500-i2c-ic";
+ reg = <0x0 0x40>;
+ interrupts = <12>;
+ interrupt-controller;
+ };
+
+ i2c0: i2c-bus at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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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