From: Anup Patel <anup.patel@wdc.com> To: Palmer Dabbelt <palmer@dabbelt.com>, Palmer Dabbelt <palmerdabbelt@google.com>, Paul Walmsley <paul.walmsley@sifive.com>, Thomas Gleixner <tglx@linutronix.de>, Marc Zyngier <maz@kernel.org>, Daniel Lezcano <daniel.lezcano@linaro.org>, Rob Herring <robh+dt@kernel.org> Cc: Atish Patra <atish.patra@wdc.com>, Alistair Francis <Alistair.Francis@wdc.com>, Anup Patel <anup@brainfault.org>, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Anup Patel <anup.patel@wdc.com>, Bin Meng <bmeng.cn@gmail.com> Subject: [RFC PATCH v2 09/11] dt-bindings: timer: Add ACLINT MTIMER bindings Date: Fri, 18 Jun 2021 18:08:49 +0530 [thread overview] Message-ID: <20210618123851.1344518-10-anup.patel@wdc.com> (raw) In-Reply-To: <20210618123851.1344518-1-anup.patel@wdc.com> We add DT bindings documentation for the ACLINT MTIMER device found on RISC-V SOCs. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> --- .../bindings/timer/riscv,aclint-mtimer.yaml | 55 +++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/riscv,aclint-mtimer.yaml diff --git a/Documentation/devicetree/bindings/timer/riscv,aclint-mtimer.yaml b/Documentation/devicetree/bindings/timer/riscv,aclint-mtimer.yaml new file mode 100644 index 000000000000..1f467c869d44 --- /dev/null +++ b/Documentation/devicetree/bindings/timer/riscv,aclint-mtimer.yaml @@ -0,0 +1,55 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/timer/riscv,aclint-mtimer.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: RISC-V ACLINT M-level Timer + +maintainers: + - Anup Patel <anup.patel@wdc.com> + +description: + RISC-V SOCs include an implementation of the M-level timer (MTIMER) defined + in the RISC-V Advanced Core Local Interruptor (ACLINT) specification. The + ACLINT MTIMER device is documented in the RISC-V ACLINT specification found + at https://github.com/riscv/riscv-aclint/blob/main/riscv-aclint.adoc. + + The ACLINT MTIMER device directly connects to the M-level timer interrupt + lines of various HARTs (or CPUs) so the RISC-V per-HART (or per-CPU) local + interrupt controller is the parent interrupt controller for the ACLINT + MTIMER device. + + The clock frequency of ACLINT is specified via "timebase-frequency" DT + property of "/cpus" DT node. The "timebase-frequency" DT property is + described in Documentation/devicetree/bindings/riscv/cpus.yaml + +properties: + compatible: + items: + - const: riscv,aclint-mtimer + + description: + Should be "<vendor>,<chip>-aclint-mtimer" and "riscv,aclint-mtimer". + + reg: + maxItems: 1 + + interrupts-extended: + minItems: 1 + +additionalProperties: false + +required: + - compatible + - reg + - interrupts-extended + +examples: + - | + timer@2004000 { + compatible = "riscv,aclint-mtimer"; + interrupts-extended = <&cpu1intc 7 &cpu2intc 7 &cpu3intc 7 &cpu4intc 7>; + reg = <0x2004000 0x8000>; + }; +... -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Anup Patel <anup.patel@wdc.com> To: Palmer Dabbelt <palmer@dabbelt.com>, Palmer Dabbelt <palmerdabbelt@google.com>, Paul Walmsley <paul.walmsley@sifive.com>, Thomas Gleixner <tglx@linutronix.de>, Marc Zyngier <maz@kernel.org>, Daniel Lezcano <daniel.lezcano@linaro.org>, Rob Herring <robh+dt@kernel.org> Cc: Atish Patra <atish.patra@wdc.com>, Alistair Francis <Alistair.Francis@wdc.com>, Anup Patel <anup@brainfault.org>, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Anup Patel <anup.patel@wdc.com>, Bin Meng <bmeng.cn@gmail.com> Subject: [RFC PATCH v2 09/11] dt-bindings: timer: Add ACLINT MTIMER bindings Date: Fri, 18 Jun 2021 18:08:49 +0530 [thread overview] Message-ID: <20210618123851.1344518-10-anup.patel@wdc.com> (raw) In-Reply-To: <20210618123851.1344518-1-anup.patel@wdc.com> We add DT bindings documentation for the ACLINT MTIMER device found on RISC-V SOCs. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> --- .../bindings/timer/riscv,aclint-mtimer.yaml | 55 +++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/riscv,aclint-mtimer.yaml diff --git a/Documentation/devicetree/bindings/timer/riscv,aclint-mtimer.yaml b/Documentation/devicetree/bindings/timer/riscv,aclint-mtimer.yaml new file mode 100644 index 000000000000..1f467c869d44 --- /dev/null +++ b/Documentation/devicetree/bindings/timer/riscv,aclint-mtimer.yaml @@ -0,0 +1,55 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/timer/riscv,aclint-mtimer.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: RISC-V ACLINT M-level Timer + +maintainers: + - Anup Patel <anup.patel@wdc.com> + +description: + RISC-V SOCs include an implementation of the M-level timer (MTIMER) defined + in the RISC-V Advanced Core Local Interruptor (ACLINT) specification. The + ACLINT MTIMER device is documented in the RISC-V ACLINT specification found + at https://github.com/riscv/riscv-aclint/blob/main/riscv-aclint.adoc. + + The ACLINT MTIMER device directly connects to the M-level timer interrupt + lines of various HARTs (or CPUs) so the RISC-V per-HART (or per-CPU) local + interrupt controller is the parent interrupt controller for the ACLINT + MTIMER device. + + The clock frequency of ACLINT is specified via "timebase-frequency" DT + property of "/cpus" DT node. The "timebase-frequency" DT property is + described in Documentation/devicetree/bindings/riscv/cpus.yaml + +properties: + compatible: + items: + - const: riscv,aclint-mtimer + + description: + Should be "<vendor>,<chip>-aclint-mtimer" and "riscv,aclint-mtimer". + + reg: + maxItems: 1 + + interrupts-extended: + minItems: 1 + +additionalProperties: false + +required: + - compatible + - reg + - interrupts-extended + +examples: + - | + timer@2004000 { + compatible = "riscv,aclint-mtimer"; + interrupts-extended = <&cpu1intc 7 &cpu2intc 7 &cpu3intc 7 &cpu4intc 7>; + reg = <0x2004000 0x8000>; + }; +... -- 2.25.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv
next prev parent reply other threads:[~2021-06-18 12:40 UTC|newest] Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-06-18 12:38 [RFC PATCH v2 00/11] Linux RISC-V ACLINT Support Anup Patel 2021-06-18 12:38 ` Anup Patel 2021-06-18 12:38 ` [RFC PATCH v2 01/11] RISC-V: Clear SIP bit only when using SBI IPI operations Anup Patel 2021-06-18 12:38 ` Anup Patel 2021-06-18 12:38 ` [RFC PATCH v2 02/11] RISC-V: Use common print prefix in smp.c Anup Patel 2021-06-18 12:38 ` Anup Patel 2021-07-26 13:44 ` Marc Zyngier 2021-07-26 13:44 ` Marc Zyngier 2021-07-26 15:22 ` Anup Patel 2021-07-26 15:22 ` Anup Patel 2021-06-18 12:38 ` [RFC PATCH v2 03/11] RISC-V: Treat IPIs as normal Linux IRQs Anup Patel 2021-06-18 12:38 ` Anup Patel 2021-06-18 12:38 ` [RFC PATCH v2 04/11] RISC-V: Allow marking IPIs as suitable for remote FENCEs Anup Patel 2021-06-18 12:38 ` Anup Patel 2021-06-18 12:38 ` [RFC PATCH v2 05/11] RISC-V: Use IPIs for remote TLB flush when possible Anup Patel 2021-06-18 12:38 ` Anup Patel 2021-06-18 12:38 ` [RFC PATCH v2 06/11] dt-bindings: interrupt-controller: Add ACLINT MSWI and SSWI bindings Anup Patel 2021-06-18 12:38 ` Anup Patel 2021-07-12 19:22 ` Rob Herring 2021-07-12 19:22 ` Rob Herring 2021-07-13 15:27 ` Anup Patel 2021-07-13 15:27 ` Anup Patel 2021-07-27 6:32 ` Sean Anderson 2021-07-27 6:32 ` Sean Anderson 2021-06-18 12:38 ` [RFC PATCH v2 07/11] irqchip: Add ACLINT software interrupt driver Anup Patel 2021-06-18 12:38 ` Anup Patel 2021-07-26 14:25 ` Marc Zyngier 2021-07-26 14:25 ` Marc Zyngier 2021-07-26 16:05 ` Anup Patel 2021-07-26 16:05 ` Anup Patel 2021-06-18 12:38 ` [RFC PATCH v2 08/11] RISC-V: Select ACLINT SWI driver for virt machine Anup Patel 2021-06-18 12:38 ` Anup Patel 2021-06-18 12:38 ` Anup Patel [this message] 2021-06-18 12:38 ` [RFC PATCH v2 09/11] dt-bindings: timer: Add ACLINT MTIMER bindings Anup Patel 2021-06-18 12:38 ` [RFC PATCH v2 10/11] clocksource: clint: Add support for ACLINT MTIMER device Anup Patel 2021-06-18 12:38 ` Anup Patel 2021-06-18 12:38 ` [RFC PATCH v2 11/11] MAINTAINERS: Add entry for RISC-V ACLINT drivers Anup Patel 2021-06-18 12:38 ` Anup Patel 2021-07-26 12:45 ` [RFC PATCH v2 00/11] Linux RISC-V ACLINT Support Anup Patel 2021-07-26 12:45 ` Anup Patel 2021-07-26 14:32 ` Marc Zyngier 2021-07-26 14:32 ` Marc Zyngier 2021-07-26 13:01 ` Anup Patel 2021-07-26 13:01 ` Anup Patel 2021-07-29 4:30 ` Palmer Dabbelt 2021-07-29 4:30 ` Palmer Dabbelt 2021-07-29 4:56 ` Anup Patel 2021-07-29 4:56 ` Anup Patel 2021-07-29 5:36 ` Anup Patel 2021-07-29 5:36 ` Anup Patel
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20210618123851.1344518-10-anup.patel@wdc.com \ --to=anup.patel@wdc.com \ --cc=Alistair.Francis@wdc.com \ --cc=anup@brainfault.org \ --cc=atish.patra@wdc.com \ --cc=bmeng.cn@gmail.com \ --cc=daniel.lezcano@linaro.org \ --cc=devicetree@vger.kernel.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-riscv@lists.infradead.org \ --cc=maz@kernel.org \ --cc=palmer@dabbelt.com \ --cc=palmerdabbelt@google.com \ --cc=paul.walmsley@sifive.com \ --cc=robh+dt@kernel.org \ --cc=tglx@linutronix.de \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.