1 files changed, 29 insertions, 0 deletions
diff --git a/fw/fe310/eos/dev/aon.c b/fw/fe310/eos/dev/aon.c
new file mode 100644
index 0000000..3d8aaf6
--- /dev/null
+++ b/fw/fe310/eos/dev/aon.c
@@ -0,0 +1,29 @@
+#include <stdlib.h>
+#include <stdint.h>
+
+#include "eos.h"
+#include "soc/aon.h"
+
+#include "aon.h"
+
+#ifdef EOS_DEBUG
+#include <stdio.h>
+#endif
+
+#define AON_EVE_REG         0
+#define AON_EVE_MASK        0x03
+
+void eos_aon_save4eve(uint8_t power_state) {
+    uint32_t reg;
+
+    power_state &= AON_EVE_MASK;
+    reg = eos_aon_get_reg(AON_EVE_REG);
+    reg &= ~AON_EVE_MASK;
+    reg |= power_state;
+
+    eos_aon_set_reg(0, power_state);
+}
+
+uint8_t eos_aon_load4eve(void) {
+    return (eos_aon_get_reg(AON_EVE_REG) & AON_EVE_MASK);
+}