From: Hector Martin <marcan@marcan.st>
To: Hector Martin <marcan@marcan.st>, soc@kernel.org
Cc: devicetree@vger.kernel.org, Arnd Bergmann <arnd@kernel.org>,
Marc Zyngier <maz@kernel.org>,
linux-kernel@vger.kernel.org, robh+dt@kernel.org,
Olof Johansson <olof@lixom.net>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 14/18] dt-bindings: interrupt-controller: Add DT bindings for apple-aic
Date: Fri, 5 Feb 2021 05:39:47 +0900 [thread overview]
Message-ID: <20210204203951.52105-15-marcan@marcan.st> (raw)
In-Reply-To: <20210204203951.52105-1-marcan@marcan.st>
AIC is the Apple Interrupt Controller found on Apple ARM SoCs, such as
the M1.
Signed-off-by: Hector Martin <marcan@marcan.st>
---
.../interrupt-controller/AAPL,aic.yaml | 88 +++++++++++++++++++
MAINTAINERS | 2 +
.../interrupt-controller/apple-aic.h | 14 +++
3 files changed, 104 insertions(+)
create mode 100644 Documentation/devicetree/bindings/interrupt-controller/AAPL,aic.yaml
create mode 100644 include/dt-bindings/interrupt-controller/apple-aic.h
diff --git a/Documentation/devicetree/bindings/interrupt-controller/AAPL,aic.yaml b/Documentation/devicetree/bindings/interrupt-controller/AAPL,aic.yaml
new file mode 100644
index 000000000000..7e119614275a
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/AAPL,aic.yaml
@@ -0,0 +1,88 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/AAPL,aic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple Interrupt Controller
+
+maintainers:
+ - Hector Martin <marcan@marcan.st>
+
+description: |
+ The Apple Interrupt Controller is a simple interrupt controller present on
+ Apple ARM SoC platforms, including various iPhone and iPad devices and the
+ "Apple Silicon" M1 Macs.
+
+ It provides the following features:
+
+ - Level-triggered hardware IRQs wired to SoC blocks
+ - Single mask bit per IRQ
+ - Per-IRQ affinity setting
+ - Automatic masking on event delivery (auto-ack)
+ - Software triggering (ORed with hw line)
+ - 2 per-CPU IPIs (meant as "self" and "other", but they are interchangeable
+ if not symmetric)
+ - Automatic prioritization (single event/ack register per CPU, lower IRQs =
+ higher priority)
+ - Automatic masking on ack
+ - Default "this CPU" register view and explicit per-CPU views
+
+allOf:
+ - $ref: /schemas/interrupt-controller.yaml#
+
+properties:
+ compatible:
+ contains:
+ enum:
+ - AAPL,aic
+ - AAPL,m1-aic
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 3
+ description: |
+ The 1st cell contains the interrupt type:
+ - 0: Hardware IRQ
+ - 1: FIQ
+ - 2: IPI
+
+ The 2nd cell contains the interrupt number.
+ - HW IRQs: interrupt number
+ - FIQs:
+ - 0: physical timer
+ - 1: virtual timer
+ - IPIs:
+ - 0: normal/"other" IPI (used interanlly for virtual IPIs)
+ - 1: self IPI (normally unused)
+
+ The 3rd cell contains the interrupt flags. This is normally
+ IRQ_TYPE_LEVEL_HIGH (4).
+
+ reg:
+ description: |
+ Specifies base physical address and size of the AIC registers.
+ maxItems: 1
+
+required:
+ - compatible
+ - '#interrupt-cells'
+ - interrupt-controller
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ aic: interrupt-controller@23b100000 {
+ compatible = "AAPL,m1-aic", "AAPL,aic";
+ #interrupt-cells = <3>;
+ interrupt-controller;
+ reg = <0x2 0x3b100000 0x0 0x8000>;
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 91a7b33834ac..f3d4661731c8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1634,6 +1634,8 @@ B: https://github.com/AsahiLinux/linux/issues
C: irc://chat.freenode.net/asahi-dev
T: git https://github.com/AsahiLinux/linux.git
F: Documentation/devicetree/bindings/arm/AAPL.yaml
+F: Documentation/devicetree/bindings/interrupt-controller/AAPL,aic.yaml
+F: include/dt-bindings/interrupt-controller/apple-aic.h
ARM/ARTPEC MACHINE SUPPORT
M: Jesper Nilsson <jesper.nilsson@axis.com>
diff --git a/include/dt-bindings/interrupt-controller/apple-aic.h b/include/dt-bindings/interrupt-controller/apple-aic.h
new file mode 100644
index 000000000000..f54dc0cd6e9a
--- /dev/null
+++ b/include/dt-bindings/interrupt-controller/apple-aic.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
+#ifndef _DT_BINDINGS_INTERRUPT_CONTROLLER_APPLE_AIC_H
+#define _DT_BINDINGS_INTERRUPT_CONTROLLER_APPLE_AIC_H
+
+#include <dt-bindings/interrupt-controller/irq.h>
+
+#define AIC_IRQ 0
+#define AIC_FIQ 1
+#define AIC_IPI 2
+
+#define AIC_TMR_PHYS 0
+#define AIC_TMR_VIRT 1
+
+#endif
--
2.30.0
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next prev parent reply other threads:[~2021-02-04 20:43 UTC|newest]
Thread overview: 118+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-04 20:39 [PATCH 00/18] Apple M1 SoC platform bring-up Hector Martin
2021-02-04 20:39 ` [PATCH 01/18] dt-bindings: vendor-prefixes: add AAPL prefix Hector Martin
2021-02-08 10:27 ` Krzysztof Kozlowski
2021-02-08 17:32 ` Rob Herring
2021-02-08 18:12 ` Krzysztof Kozlowski
2021-02-08 19:59 ` Arnd Bergmann
2021-02-08 23:17 ` Hector Martin
2021-02-04 20:39 ` [PATCH 02/18] dt-bindings: arm: cpus: Add AAPL, firestorm & icestorm compatibles Hector Martin
2021-02-04 20:39 ` [PATCH 03/18] dt-bindings: arm: AAPL: Add bindings for Apple ARM platforms Hector Martin
2021-02-04 20:39 ` [PATCH 04/18] arm64: Kconfig: Introduce CONFIG_ARCH_APPLE Hector Martin
2021-02-06 13:17 ` Marc Zyngier
2021-02-07 8:05 ` Hector Martin 'marcan'
2021-02-04 20:39 ` [PATCH 05/18] tty: serial: samsung_tty: add support for Apple UARTs Hector Martin
2021-02-04 23:55 ` kernel test robot
2021-02-05 9:44 ` Hector Martin 'marcan'
2021-02-05 2:19 ` kernel test robot
2021-02-06 13:15 ` Marc Zyngier
2021-02-07 9:12 ` Hector Martin 'marcan'
2021-02-07 9:26 ` Hector Martin 'marcan'
2021-02-08 9:36 ` Krzysztof Kozlowski
2021-02-08 16:14 ` Hector Martin
2021-02-08 10:34 ` Marc Zyngier
2021-02-08 16:18 ` Hector Martin
2021-02-08 16:46 ` Greg Kroah-Hartman
2021-02-08 23:22 ` Hector Martin
2021-02-08 10:54 ` Krzysztof Kozlowski
2021-02-08 16:10 ` Hector Martin
2021-02-08 18:37 ` Krzysztof Kozlowski
2021-02-08 23:23 ` Hector Martin
2021-02-04 20:39 ` [PATCH 06/18] dt-bindings: serial: samsung: Add AAPL, s5l-uart compatible Hector Martin
2021-02-04 20:39 ` [PATCH 07/18] tty: serial: samsung_tty: enable for ARCH_APPLE Hector Martin
2021-02-04 21:16 ` Arnd Bergmann
2021-02-04 21:27 ` Hector Martin 'marcan'
2021-02-04 20:39 ` [PATCH 08/18] arm64: cpufeature: Add a feature for FIQ support Hector Martin
2021-02-06 13:58 ` Marc Zyngier
2021-02-07 8:28 ` Hector Martin 'marcan'
2021-02-08 11:29 ` Marc Zyngier
2021-02-08 15:51 ` Hector Martin
2021-02-04 20:39 ` [PATCH 09/18] arm64: cputype: Add CPU types for the Apple M1 big/little cores Hector Martin
2021-02-04 20:39 ` [PATCH 10/18] arm64: Introduce FIQ support Hector Martin
2021-02-06 15:37 ` Marc Zyngier
2021-02-06 16:22 ` Arnd Bergmann
2021-02-07 8:36 ` Hector Martin 'marcan'
2021-02-07 12:25 ` Arnd Bergmann
2021-02-07 15:38 ` Hector Martin 'marcan'
2021-02-07 18:49 ` Arnd Bergmann
2021-02-08 23:34 ` Hector Martin
2021-02-07 8:47 ` Hector Martin 'marcan'
2021-02-08 11:30 ` Marc Zyngier
2021-02-04 20:39 ` [PATCH 11/18] arm64: Kconfig: Require FIQ support for ARCH_APPLE Hector Martin
2021-02-06 15:46 ` Marc Zyngier
2021-02-07 9:23 ` Hector Martin 'marcan'
2021-02-08 12:05 ` Marc Zyngier
2021-02-08 15:48 ` Hector Martin
2021-02-04 20:39 ` [PATCH 12/18] arm64: setup: Use nGnRnE IO mappings for fixmap on Apple platforms Hector Martin
2021-02-04 22:25 ` Arnd Bergmann
2021-02-04 20:39 ` [PATCH 13/18] arm64: ioremap: use nGnRnE mappings on platforms that require it Hector Martin
2021-02-04 22:21 ` Arnd Bergmann
2021-02-08 22:57 ` Arnd Bergmann
2021-02-08 23:20 ` Mark Kettenis
2021-02-09 0:25 ` Hector Martin
2021-02-09 9:15 ` Arnd Bergmann
2021-02-09 9:58 ` Mark Kettenis
2021-02-09 11:22 ` Hector Martin
2021-02-09 9:35 ` Arnd Bergmann
2021-02-10 12:24 ` Hector Martin
2021-02-10 13:40 ` Mark Kettenis
2021-02-04 20:39 ` Hector Martin [this message]
2021-02-09 23:07 ` [PATCH 14/18] dt-bindings: interrupt-controller: Add DT bindings for apple-aic Rob Herring
2021-02-04 20:39 ` [PATCH 15/18] irqchip/apple-aic: Add support for the Apple Interrupt Controller Hector Martin
2021-02-04 21:37 ` Arnd Bergmann
2021-02-04 22:04 ` Hector Martin 'marcan'
2021-02-04 23:04 ` Arnd Bergmann
2021-02-05 7:41 ` Hector Martin 'marcan'
2021-02-05 10:33 ` Arnd Bergmann
2021-02-05 2:27 ` kernel test robot
2021-02-05 9:45 ` Hector Martin 'marcan'
2021-02-08 9:25 ` Marc Zyngier
2021-02-08 10:29 ` Arnd Bergmann
2021-02-08 11:13 ` Hector Martin 'marcan'
2021-02-08 11:21 ` Arnd Bergmann
2021-02-08 11:36 ` Marc Zyngier
2021-02-08 12:17 ` Arnd Bergmann
2021-02-08 15:31 ` Hector Martin
2021-02-09 6:20 ` Hector Martin
2021-02-04 20:39 ` [PATCH 16/18] irqchip/apple-aic: Add SMP / IPI support Hector Martin
2021-02-04 20:39 ` [PATCH 17/18] dt-bindings: display: add AAPL,simple-framebuffer Hector Martin
2021-02-04 20:39 ` [PATCH 18/18] arm64: apple: Add initial Mac Mini 2020 (M1) devicetree Hector Martin
2021-02-04 21:29 ` Arnd Bergmann
2021-02-04 21:44 ` Hector Martin 'marcan'
2021-02-04 23:08 ` Arnd Bergmann
2021-02-05 7:11 ` Hector Martin 'marcan'
2021-02-05 12:43 ` Arnd Bergmann
2021-02-08 11:04 ` Krzysztof Kozlowski
2021-02-08 11:56 ` Hector Martin 'marcan'
2021-02-08 12:13 ` Krzysztof Kozlowski
2021-02-08 12:40 ` Arnd Bergmann
2021-02-08 14:12 ` Hector Martin
2021-02-08 17:58 ` Rob Herring
2021-02-09 0:32 ` Hector Martin
2021-02-08 19:14 ` Rob Herring
2021-02-09 0:49 ` Hector Martin
2021-02-09 2:05 ` Rob Herring
2021-02-10 10:19 ` Tony Lindgren
2021-02-10 11:07 ` Hector Martin
2021-02-10 11:34 ` Tony Lindgren
2021-02-10 11:43 ` Hector Martin
2021-02-10 12:24 ` Daniel Palmer
2021-02-10 12:54 ` Tony Lindgren
2021-02-10 12:56 ` Hector Martin
2021-02-10 12:55 ` Krzysztof Kozlowski
2021-02-10 13:19 ` Tony Lindgren
2021-02-10 13:25 ` Krzysztof Kozlowski
2021-02-08 12:27 ` Marc Zyngier
2021-02-08 14:53 ` Hector Martin
2021-02-08 15:36 ` Marc Zyngier
2021-02-04 22:43 ` [PATCH 00/18] Apple M1 SoC platform bring-up Arnd Bergmann
2021-02-05 11:35 ` Hector Martin 'marcan'
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