Document the Aspeed SCU interrupt controller and add an include file
for the interrupts it provides.
Signed-off-by: Eddie James <eajames@xxxxxxxxxxxxx>
---
.../interrupt-controller/aspeed,ast2xxx-scu-ic.txt | 26 ++++++++++++++++++++++
MAINTAINERS | 7 ++++++
.../interrupt-controller/aspeed-scu-ic.h | 23 +++++++++++++++++++
3 files changed, 56 insertions(+)
create mode 100644 Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt
create mode 100644 include/dt-bindings/interrupt-controller/aspeed-scu-ic.h
diff --git a/Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt b/Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt
new file mode 100644
index 0000000..baa3780
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt
@@ -0,0 +1,26 @@
+Aspeed AST25XX and AST26XX SCU Interrupt Controller
+
+Required Properties:
+ - #interrupt-cells : must be 1
+ - compatible : must be "aspeed,ast2500-scu-ic",
+ "aspeed,ast2600-scu-ic0" or
+ "aspeed,ast2600-scu-ic1"
+ - reg : address and size of the SCU register
+ associated with the controller
+ - interrupts : interrupt from the parent controller
+ - interrupt-controller : indicates that the controlle receives and
+ fires new interrupts for child busses
+
+Example:
+
+ syscon@1e6e2000 {
+ ranges = <0 0x1e6e2000 0x1a8>;
+
+ scu_ic: interrupt-controller@18 {
+ #interrupt-cells = <1>;
+ compatible = "aspeed,ast2500-scu-ic";
+ reg = <0x18 0x04>;
+ interrupts = <21>;
+ interrupt-controller;
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index cda6013..4a1687b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2650,6 +2650,13 @@ S: Maintained
F: drivers/pinctrl/aspeed/
F: Documentation/devicetree/bindings/pinctrl/aspeed,*
+ASPEED SCU INTERRUPT CONTROLLER DRIVER
+M: Eddie James <eajames@xxxxxxxxxxxxx>
+L: linux-aspeed@xxxxxxxxxxxxxxxx (moderated for non-subscribers)
+S: Maintained
+F: Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt
+F: include/dt-bindings/interrupt-controller/aspeed-scu-ic.h
+
ASPEED VIDEO ENGINE DRIVER
M: Eddie James <eajames@xxxxxxxxxxxxx>
L: linux-media@xxxxxxxxxxxxxxx
diff --git a/include/dt-bindings/interrupt-controller/aspeed-scu-ic.h b/include/dt-bindings/interrupt-controller/aspeed-scu-ic.h
new file mode 100644
index 0000000..f315d5a
--- /dev/null
+++ b/include/dt-bindings/interrupt-controller/aspeed-scu-ic.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#ifndef _DT_BINDINGS_INTERRUPT_CONTROLLER_ASPEED_SCU_IC_H_
+#define _DT_BINDINGS_INTERRUPT_CONTROLLER_ASPEED_SCU_IC_H_
+
+#define ASPEED_SCU_IC_VGA_CURSOR_CHANGE 0
+#define ASPEED_SCU_IC_VGA_SCRATCH_REG_CHANGE 1
+
+#define ASPEED_AST2500_SCU_IC_PCIE_RESET_LO_TO_HI 2
+#define ASPEED_AST2500_SCU_IC_PCIE_RESET_HI_TO_LO 3
+#define ASPEED_AST2500_SCU_IC_LPC_RESET_LO_TO_HI 4
+#define ASPEED_AST2500_SCU_IC_LPC_RESET_HI_TO_LO 5
+#define ASPEED_AST2500_SCU_IC_ISSUE_MSI 6
+
+#define ASPEED_AST2600_SCU_IC0_PCIE_PERST_LO_TO_HI 2
+#define ASPEED_AST2600_SCU_IC0_PCIE_PERST_HI_TO_LO 3
+#define ASPEED_AST2600_SCU_IC0_PCIE_RCRST_LO_TO_HI 4
+#define ASPEED_AST2600_SCU_IC0_PCIE_RCRST_HI_TO_LO 5
+
+#define ASPEED_AST2600_SCU_IC1_LPC_RESET_LO_TO_HI 0
+#define ASPEED_AST2600_SCU_IC1_LPC_RESET_HI_TO_LO 1
+
+#endif /* _DT_BINDINGS_INTERRUPT_CONTROLLER_ASPEED_SCU_IC_H_ */
--
1.8.3.1
