riscv: dts: Add DT support for SiFive FU540 GPIO driver

Add the gpio DT node in SiFive FU540 soc-specific DT file.
Enable the gpio node in HiFive Unleashed board-specific DT file.

Signed-off-by: Yash Shah <yash.shah@sifive.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

diff --git a/arch/riscv/boot/dts/sifive/fu540-c000.dtsi b/arch/riscv/boot/dts/sifive/fu540-c000.dtsi
index a2e3d54..7db8610 100644 (file)
--- a/arch/riscv/boot/dts/sifive/fu540-c000.dtsi
+++ b/arch/riscv/boot/dts/sifive/fu540-c000.dtsi
@@ -268,6 +268,19 @@
                        interrupts = <1 2 3>;
                        reg = <0x0 0x2010000 0x0 0x1000>;
                };
-
+               gpio: gpio@10060000 {
+                       compatible = "sifive,fu540-c000-gpio", "sifive,gpio0";
+                       interrupt-parent = <&plic0>;
+                       interrupts = <7>, <8>, <9>, <10>, <11>, <12>, <13>,
+                                    <14>, <15>, <16>, <17>, <18>, <19>, <20>,
+                                    <21>, <22>;
+                       reg = <0x0 0x10060000 0x0 0x1000>;
+                       gpio-controller;
+                       #gpio-cells = <2>;
+                       interrupt-controller;
+                       #interrupt-cells = <2>;
+                       clocks = <&prci PRCI_CLK_TLCLK>;
+                       status = "disabled";
+               };
        };
 };

diff --git a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
index 88cfcb9..609198c 100644 (file)
--- a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
+++ b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
@@ -94,3 +94,7 @@
 &pwm1 {
        status = "okay";
 };
+
+&gpio {
+       status = "okay";
+};