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authorArnd Bergmann <arnd@arndb.de>2024-09-11 08:36:32 +0000
committerArnd Bergmann <arnd@arndb.de>2024-09-11 08:36:33 +0000
commitceb7d8adf640dbbb926e535ce9443b8c93fc1f5a (patch)
treeb58ed89bc914d8bbaade4fcfc8b2be72dd09054d /Documentation
parent79800fa98d72332f4667f1979a9cd48bf5052db3 (diff)
parent2192ef5e4bd140db22c46cd35ca64731d2e4ba33 (diff)
Merge tag 'arm-soc/for-6.12/devicetree' of https://github.com/Broadcom/stblinux into soc/dt
This pull request contains Broadcom SoCs Device Tree changes for 6.12, please pull the following: - Krzysztof documents the AVS monitor binding present on 2711 (Raspberry Pi 4) - Rafal updates the Broadcom Northstar DTS files to use the recent NVMEM binding - Artur factors the nodes between the BCM21664 and BCM23550 SoCs since they are nearly identical - Stefan converts the bcm2835-system-timer and bcm2836-l1-intc to a YAML binding syntax * tag 'arm-soc/for-6.12/devicetree' of https://github.com/Broadcom/stblinux: dt-bindings: interrupt-controller: convert bcm2836-l1-intc to yaml dt-bindings: timer: convert bcm2835-system-timer bindings to YAML ARM: dts: bcm-mobile: Split out nodes used by both BCM21664 and BCM23550 ARM: dts: broadcom: bcm21664: Move chosen node into Garnet DTS ARM: dts: broadcom: convert NVMEM content to layout syntax dt-bindings: soc: bcm: document brcm,bcm2711-avs-monitor Link: https://lore.kernel.org/r/20240906180643.2275460-1-florian.fainelli@broadcom.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2836-l1-intc.txt37
-rw-r--r--Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2836-l1-intc.yaml51
-rw-r--r--Documentation/devicetree/bindings/soc/bcm/brcm,bcm2711-avs-monitor.yaml44
-rw-r--r--Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.txt22
-rw-r--r--Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.yaml50
5 files changed, 145 insertions, 59 deletions
diff --git a/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2836-l1-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2836-l1-intc.txt
deleted file mode 100644
index 8ced1696c325..000000000000
--- a/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2836-l1-intc.txt
+++ /dev/null
@@ -1,37 +0,0 @@
-BCM2836 per-CPU interrupt controller
-
-The BCM2836 has a per-cpu interrupt controller for the timer, PMU
-events, and SMP IPIs. One of the CPUs may receive interrupts for the
-peripheral (GPU) events, which chain to the BCM2835-style interrupt
-controller.
-
-Required properties:
-
-- compatible: Should be "brcm,bcm2836-l1-intc"
-- reg: Specifies base physical address and size of the
- registers
-- interrupt-controller: Identifies the node as an interrupt controller
-- #interrupt-cells: Specifies the number of cells needed to encode an
- interrupt source. The value shall be 2
-
-Please refer to interrupts.txt in this directory for details of the common
-Interrupt Controllers bindings used by client devices.
-
-The interrupt sources are as follows:
-
-0: CNTPSIRQ
-1: CNTPNSIRQ
-2: CNTHPIRQ
-3: CNTVIRQ
-8: GPU_FAST
-9: PMU_FAST
-
-Example:
-
-local_intc: local_intc {
- compatible = "brcm,bcm2836-l1-intc";
- reg = <0x40000000 0x100>;
- interrupt-controller;
- #interrupt-cells = <2>;
- interrupt-parent = <&local_intc>;
-};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2836-l1-intc.yaml b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2836-l1-intc.yaml
new file mode 100644
index 000000000000..5fda626c80ce
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2836-l1-intc.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/brcm,bcm2836-l1-intc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: BCM2836 per-CPU interrupt controller
+
+maintainers:
+ - Stefan Wahren <wahrenst@gmx.net>
+ - Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com>
+
+description:
+ The BCM2836 has a per-cpu interrupt controller for the timer, PMU
+ events, and SMP IPIs. One of the CPUs may receive interrupts for the
+ peripheral (GPU) events, which chain to the BCM2835-style interrupt
+ controller.
+
+allOf:
+ - $ref: /schemas/interrupt-controller.yaml#
+
+properties:
+ compatible:
+ const: brcm,bcm2836-l1-intc
+
+ reg:
+ maxItems: 1
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 2
+
+required:
+ - compatible
+ - reg
+ - interrupt-controller
+ - '#interrupt-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ local_intc: interrupt-controller@40000000 {
+ compatible = "brcm,bcm2836-l1-intc";
+ reg = <0x40000000 0x100>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&local_intc>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2711-avs-monitor.yaml b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2711-avs-monitor.yaml
new file mode 100644
index 000000000000..e02d9d7e7d9a
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2711-avs-monitor.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/bcm/brcm,bcm2711-avs-monitor.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom AVS Monitor
+
+maintainers:
+ - Stefan Wahren <wahrenst@gmx.net>
+
+properties:
+ compatible:
+ items:
+ - const: brcm,bcm2711-avs-monitor
+ - const: syscon
+ - const: simple-mfd
+
+ reg:
+ maxItems: 1
+
+ thermal:
+ $ref: /schemas/thermal/brcm,avs-ro-thermal.yaml
+ description: Broadcom AVS ring oscillator thermal
+
+required:
+ - compatible
+ - reg
+ - thermal
+
+additionalProperties: false
+
+examples:
+ - |
+ avs-monitor@7d5d2000 {
+ compatible = "brcm,bcm2711-avs-monitor", "syscon", "simple-mfd";
+ reg = <0x7d5d2000 0xf00>;
+
+ thermal: thermal {
+ compatible = "brcm,bcm2711-thermal";
+ #thermal-sensor-cells = <0>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.txt b/Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.txt
deleted file mode 100644
index 844bd5fbd04c..000000000000
--- a/Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-BCM2835 System Timer
-
-The System Timer peripheral provides four 32-bit timer channels and a
-single 64-bit free running counter. Each channel has an output compare
-register, which is compared against the 32 least significant bits of the
-free running counter values, and generates an interrupt.
-
-Required properties:
-
-- compatible : should be "brcm,bcm2835-system-timer"
-- reg : Specifies base physical address and size of the registers.
-- interrupts : A list of 4 interrupt sinks; one per timer channel.
-- clock-frequency : The frequency of the clock that drives the counter, in Hz.
-
-Example:
-
-timer {
- compatible = "brcm,bcm2835-system-timer";
- reg = <0x7e003000 0x1000>;
- interrupts = <1 0>, <1 1>, <1 2>, <1 3>;
- clock-frequency = <1000000>;
-};
diff --git a/Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.yaml b/Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.yaml
new file mode 100644
index 000000000000..f5804b5b0e63
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/timer/brcm,bcm2835-system-timer.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: BCM2835 System Timer
+
+maintainers:
+ - Stefan Wahren <wahrenst@gmx.net>
+ - Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com>
+
+description:
+ The System Timer peripheral provides four 32-bit timer channels and a
+ single 64-bit free running counter. Each channel has an output compare
+ register, which is compared against the 32 least significant bits of the
+ free running counter values, and generates an interrupt.
+
+properties:
+ compatible:
+ const: brcm,bcm2835-system-timer
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ items:
+ - description: System Timer Compare 0 match (used by VideoCore GPU)
+ - description: System Timer Compare 1 match (usable for ARM core)
+ - description: System Timer Compare 2 match (used by VideoCore GPU)
+ - description: System Timer Compare 3 match (usable for ARM core)
+
+ clock-frequency: true
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ timer@7e003000 {
+ compatible = "brcm,bcm2835-system-timer";
+ reg = <0x7e003000 0x1000>;
+ interrupts = <1 0>, <1 1>, <1 2>, <1 3>;
+ clock-frequency = <1000000>;
+ };
+...