diff options
author | Arnd Bergmann <arnd@arndb.de> | 2024-09-11 08:36:32 +0000 |
---|---|---|
committer | Arnd Bergmann <arnd@arndb.de> | 2024-09-11 08:36:33 +0000 |
commit | ceb7d8adf640dbbb926e535ce9443b8c93fc1f5a (patch) | |
tree | b58ed89bc914d8bbaade4fcfc8b2be72dd09054d /Documentation | |
parent | 79800fa98d72332f4667f1979a9cd48bf5052db3 (diff) | |
parent | 2192ef5e4bd140db22c46cd35ca64731d2e4ba33 (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')
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>; + }; +... |