1 files changed, 46 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/altera/common/epled.c b/qemu/roms/u-boot/board/altera/common/epled.c
new file mode 100644
index 000000000..580d590f2
--- /dev/null
+++ b/qemu/roms/u-boot/board/altera/common/epled.c
@@ -0,0 +1,46 @@
+/*
+ * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
+ * Scott McNutt <smcnutt@psyent.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <nios2-io.h>
+#include <status_led.h>
+
+/* The LED port is configured as output only, so we
+ * must track the state manually.
+ */
+static led_id_t val = 0;
+
+void __led_init (led_id_t mask, int state)
+{
+	nios_pio_t *pio = (nios_pio_t *)CONFIG_SYS_LEDPIO_ADDR;
+
+	if (state == STATUS_LED_ON)
+		val &= ~mask;
+	else
+		val |= mask;
+	writel (val, &pio->data);
+}
+
+void __led_set (led_id_t mask, int state)
+{
+	nios_pio_t *pio = (nios_pio_t *)CONFIG_SYS_LEDPIO_ADDR;
+
+	if (state == STATUS_LED_ON)
+		val &= ~mask;
+	else
+		val |= mask;
+	writel (val, &pio->data);
+}
+
+void __led_toggle (led_id_t mask)
+{
+	nios_pio_t *pio = (nios_pio_t *)CONFIG_SYS_LEDPIO_ADDR;
+
+	val ^= mask;
+	writel (val, &pio->data);
+}