From 63c4dbaea9e39551318eed45230ca82050d3a0a7 Mon Sep 17 00:00:00 2001
From: Markus Hitter <mah@jump-ing.de>
Date: Fri, 3 Jul 2015 22:40:39 +0200
Subject: [PATCH] mendel.c: do module enabling differently.

Same result, but 8 bytes less binary size. With SD card disabled,
binary size is now the same as before getting SPI running.
---
 mendel.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/mendel.c b/mendel.c
index bc59a7c..1b02b98 100644
--- a/mendel.c
+++ b/mendel.c
@@ -68,14 +68,16 @@
 void io_init(void) {
 	// disable modules we don't use
 	#ifdef PRR
-    PRR = MASK(PRTWI) | MASK(PRADC);
-    #if ! defined TEMP_MAX6675 && ! defined SD
-      PRR |= MASK(PRSPI);
+    #if defined TEMP_MAX6675 || defined SD
+      PRR = MASK(PRTWI) | MASK(PRADC);
+    #else
+      PRR = MASK(PRTWI) | MASK(PRADC) | MASK(PRSPI);
     #endif
 	#elif defined PRR0
-    PRR0 = MASK(PRTWI) | MASK(PRADC);
-    #if ! defined TEMP_MAX6675 && ! defined SD
-      PRR0 |= MASK(PRSPI);
+    #if defined TEMP_MAX6675 || defined SD
+      PRR0 = MASK(PRTWI) | MASK(PRADC);
+    #else
+      PRR0 = MASK(PRTWI) | MASK(PRADC) | MASK(PRSPI);
     #endif
 		#if defined(PRUSART3)
 			// don't use USART2 or USART3- leave USART1 for GEN3 and derivatives