diff --git a/fw/atspi/atspi.c b/fw/atspi/atspi.c
index 0af6335..c2283bb 100644
--- a/fw/atspi/atspi.c
+++ b/fw/atspi/atspi.c
@@ -25,7 +25,7 @@ static void init_io(void)
 	 *
 	 * MOSI		push-pull	0
 	 * MISO		open drain	1	(input)
-	 * SCLK		push-pull	1
+	 * SCLK		push-pull	0
 	 * nSS		push-pull	1
 	 * nRST_RF	push-pull	1
 	 * IRQ_RF	open drain	1	(input)
@@ -37,22 +37,22 @@ static void init_io(void)
 	 */
 
 	MOSI = 0;
-	MOSI_MODE = 1;
+	MOSI_MODE |= 1 << MOSI_BIT;
 
 	SCLK = 0;
-	SCLK_MODE = 1;
+	SCLK_MODE |= 1 << SCLK_BIT;
 
-	nSS_MODE = 1;
+	nSS_MODE |= 1 << nSS_BIT;
 
-	nRST_RF_MODE = 1;
+	nRST_RF_MODE |= 1 << nRST_RF_BIT;
 
 	SLP_TR = 0;
-	SLP_TR_MODE = 1;
+	SLP_TR_MODE |= 1 << SLP_TR_BIT;
 
 	P0 &=
 	    ~((1 << 0) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7));
+	    /* change 1 << 0 to 1 << 2 once 100813 boards are reworked */
 	P3 = 0;
-	
 }
 
 
diff --git a/fw/common/io.h b/fw/common/io.h
index 53604ce..692d374 100644
--- a/fw/common/io.h
+++ b/fw/common/io.h
@@ -28,7 +28,7 @@
 /* Miscellaneous RF signals */
 
 #define	nRST_RF	P2_0
-#define	IRQ_RF	P0_2
+#define	IRQ_RF	P0_2	/* change to P0_0 when 100813 board are reworked */
 #define	SLP_TR	P2_1
 
 #endif /* !IO_H */