From d264dcb9418036935a991561d8735611d73bfddb Mon Sep 17 00:00:00 2001
From: Ayke van Laethem <aykevanlaethem@gmail.com>
Date: Mon, 21 Oct 2024 12:01:04 +0200
Subject: [PATCH] fe310: support GPIO PinInput

This is needed to support switching between input and output.
---
 src/machine/machine_fe310.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/machine/machine_fe310.go b/src/machine/machine_fe310.go
index 37f3ee07e8..4a15ad76e1 100644
--- a/src/machine/machine_fe310.go
+++ b/src/machine/machine_fe310.go
@@ -26,6 +26,8 @@ const (
 func (p Pin) Configure(config PinConfig) {
 	sifive.GPIO0.INPUT_EN.SetBits(1 << uint8(p))
 	switch config.Mode {
+	case PinInput:
+		sifive.GPIO0.OUTPUT_EN.ClearBits(1 << uint8(p))
 	case PinOutput:
 		sifive.GPIO0.OUTPUT_EN.SetBits(1 << uint8(p))
 	case PinPWM: