From 6c862db18d023fe888f102c9277e066d98ae2f9f Mon Sep 17 00:00:00 2001
From: Christian Kroll <chris@das-labor.org>
Date: Thu, 20 Mar 2014 02:14:37 +0100
Subject: [PATCH] restore CAN support on ATmegaxx4(P)

---
 src/can/can.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/can/can.c b/src/can/can.c
index 0f6f539..9d92acc 100644
--- a/src/can/can.c
+++ b/src/can/can.c
@@ -395,7 +395,13 @@ unsigned char mcp_status();
 			#else
 				//this turns on INT0 on the Atmel
 				MCUCR |=  (1<<ISC01);
-				GIMSK |= (1<<INT0);
+				#ifdef EIMSK
+					EIMSK |= (1<<INT0);
+				#elif defined(GIMSK)
+					GIMSK |= (1<<INT0);
+				#else
+					GICR |= (1<<INT0);
+				#endif
 			#endif //ATMEGA
 		#else  //CAN_INTERRUPT
 			// configure IRQ: this only configures the INT Output of the mcp2515,