[RFC v3 15/18] riscv: dts: thead: Add mailbox node

Michal Wilczynski
2025-01-20T17:23:36Z

Add mailbox device tree node. This work is based on the vendor kernel [1].

Link: https://github.com/revyos/thead-kernel.git [1]

Reviewed-by: Drew Fustini <dfustini@tenstorrent.com>
Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com>
---
arch/riscv/boot/dts/thead/th1520.dtsi | 16 ++++++++++++++++
1 file changed, 16 insertions(+)

diff --git a/arch/riscv/boot/dts/thead/th1520.dtsi b/arch/riscv/boot/dts/thead/th1520.dtsi
index 5e515a9d69b2..d4cba0713cab 100644
--- a/arch/riscv/boot/dts/thead/th1520.dtsi
+++ b/arch/riscv/boot/dts/thead/th1520.dtsi
@@ -606,6 +606,22 @@ timer7: timer@ffffc3303c {
status = "disabled";
};

+ mbox_910t: mailbox@ffffc38000 {
+ compatible = "thead,th1520-mbox";
+ reg = <0xff 0xffc38000 0x0 0x6000>,
+ <0xff 0xffc40000 0x0 0x6000>,
+ <0xff 0xffc4c000 0x0 0x2000>,
+ <0xff 0xffc54000 0x0 0x2000>;
+ reg-names = "local", "remote-icu0", "remote-icu1", "remote-icu2";
+ clocks = <&clk CLK_MBOX0>, <&clk CLK_MBOX1>, <&clk CLK_MBOX2>,
+ <&clk CLK_MBOX3>;
+ clock-names = "clk-local", "clk-remote-icu0", "clk-remote-icu1",
+ "clk-remote-icu2";
+ interrupt-parent = <&plic>;
+ interrupts = <28 IRQ_TYPE_LEVEL_HIGH>;
+ #mbox-cells = <1>;
+ };
+
gpio@fffff41000 {
compatible = "snps,dw-apb-gpio";
reg = <0xff 0xfff41000 0x0 0x1000>;
--
2.34.1