1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 $id: http://devicetree.org/schemas/timer/sifive,clint.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: SiFive Core Local Interruptor
10 - Palmer Dabbelt <palmer@dabbelt.com>
11 - Anup Patel <anup.patel@wdc.com>
14 SiFive (and other RISC-V) SOCs include an implementation of the SiFive
15 Core Local Interruptor (CLINT) for M-mode timer and M-mode inter-processor
16 interrupts. It directly connects to the timer and inter-processor interrupt
17 lines of various HARTs (or CPUs) so RISC-V per-HART (or per-CPU) local
18 interrupt controller is the parent interrupt controller for CLINT device.
19 The clock frequency of CLINT is specified via "timebase-frequency" DT
20 property of "/cpus" DT node. The "timebase-frequency" DT property is
21 described in Documentation/devicetree/bindings/riscv/cpus.yaml
26 - const: sifive,fu540-c000-clint
27 - const: sifive,clint0
30 Should be "sifive,<chip>-clint" and "sifive,clint<version>".
31 Supported compatible strings are -
32 "sifive,fu540-c000-clint" for the SiFive CLINT v0 as integrated
33 onto the SiFive FU540 chip, and "sifive,clint0" for the SiFive
34 CLINT v0 IP block with no chip integration tweaks.
35 Please refer to sifive-blocks-ip-versioning.txt for details
43 additionalProperties: false
53 compatible = "sifive,fu540-c000-clint", "sifive,clint0";
54 interrupts-extended = <&cpu1intc 3 &cpu1intc 7
55 &cpu2intc 3 &cpu2intc 7
56 &cpu3intc 3 &cpu3intc 7
57 &cpu4intc 3 &cpu4intc 7>;
58 reg = <0x2000000 0x10000>;