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c43b571801
Add the "canaan,k210-clint" compatible string to the Sifive clint bindings to indicate the use of the "sifive,clint0" IP block in the Canaan Kendryte K210 SoC. The description of the compatible string property is also updated to reflect this addition. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
65 lines
2.0 KiB
YAML
65 lines
2.0 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/timer/sifive,clint.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: SiFive Core Local Interruptor
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maintainers:
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- Palmer Dabbelt <palmer@dabbelt.com>
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- Anup Patel <anup.patel@wdc.com>
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description:
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SiFive (and other RISC-V) SOCs include an implementation of the SiFive
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Core Local Interruptor (CLINT) for M-mode timer and M-mode inter-processor
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interrupts. It directly connects to the timer and inter-processor interrupt
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lines of various HARTs (or CPUs) so RISC-V per-HART (or per-CPU) local
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interrupt controller is the parent interrupt controller for CLINT device.
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The clock frequency of CLINT is specified via "timebase-frequency" DT
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property of "/cpus" DT node. The "timebase-frequency" DT property is
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described in Documentation/devicetree/bindings/riscv/cpus.yaml
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properties:
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compatible:
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items:
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- enum:
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- sifive,fu540-c000-clint
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- canaan,k210-clint
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- const: sifive,clint0
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description:
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Should be "<vendor>,<chip>-clint" and "sifive,clint<version>".
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Supported compatible strings are -
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"sifive,fu540-c000-clint" for the SiFive CLINT v0 as integrated
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onto the SiFive FU540 chip, "canaan,k210-clint" for the SiFive
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CLINT v0 as integrated onto the Canaan Kendryte K210 chip, and
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"sifive,clint0" for the SiFive CLINT v0 IP block with no chip
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integration tweaks.
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Please refer to sifive-blocks-ip-versioning.txt for details
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reg:
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maxItems: 1
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interrupts-extended:
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minItems: 1
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additionalProperties: false
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required:
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- compatible
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- reg
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- interrupts-extended
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examples:
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- |
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timer@2000000 {
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compatible = "sifive,fu540-c000-clint", "sifive,clint0";
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interrupts-extended = <&cpu1intc 3 &cpu1intc 7
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&cpu2intc 3 &cpu2intc 7
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&cpu3intc 3 &cpu3intc 7
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&cpu4intc 3 &cpu4intc 7>;
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reg = <0x2000000 0x10000>;
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};
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...
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