X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fmips%2Fsibyte%2Fswarm%2Frtc_xicor1241.c;h=f4a178836415decef787fb02366592c0e1573dd7;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=981d21f16e64886ab9f0a15af4a59a305f234513;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/arch/mips/sibyte/swarm/rtc_xicor1241.c b/arch/mips/sibyte/swarm/rtc_xicor1241.c
index 981d21f16..f4a178836 100644
--- a/arch/mips/sibyte/swarm/rtc_xicor1241.c
+++ b/arch/mips/sibyte/swarm/rtc_xicor1241.c
@@ -57,52 +57,52 @@
 
 #define X1241_CCR_ADDRESS	0x6F
 
-#define SMB_CSR(reg) ((u8 *) (IOADDR(A_SMB_REGISTER(1, reg))))
+#define SMB_CSR(reg)	IOADDR(A_SMB_REGISTER(1, reg))
 
 static int xicor_read(uint8_t addr)
 {
-        while (bus_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_BUSY)
+        while (__raw_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_BUSY)
                 ;
 
-	bus_writeq((addr >> 8) & 0x7, SMB_CSR(R_SMB_CMD));
-	bus_writeq((addr & 0xff), SMB_CSR(R_SMB_DATA));
-	bus_writeq((V_SMB_ADDR(X1241_CCR_ADDRESS) | V_SMB_TT_WR2BYTE),
-		   SMB_CSR(R_SMB_START));
+	__raw_writeq((addr >> 8) & 0x7, SMB_CSR(R_SMB_CMD));
+	__raw_writeq(addr & 0xff, SMB_CSR(R_SMB_DATA));
+	__raw_writeq(V_SMB_ADDR(X1241_CCR_ADDRESS) | V_SMB_TT_WR2BYTE,
+		     SMB_CSR(R_SMB_START));
 
-        while (bus_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_BUSY)
+        while (__raw_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_BUSY)
                 ;
 
-	bus_writeq((V_SMB_ADDR(X1241_CCR_ADDRESS) | V_SMB_TT_RD1BYTE),
-		   SMB_CSR(R_SMB_START));
+	__raw_writeq(V_SMB_ADDR(X1241_CCR_ADDRESS) | V_SMB_TT_RD1BYTE,
+		     SMB_CSR(R_SMB_START));
 
-        while (bus_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_BUSY)
+        while (__raw_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_BUSY)
                 ;
 
-        if (bus_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_ERROR) {
+        if (__raw_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_ERROR) {
                 /* Clear error bit by writing a 1 */
-                bus_writeq(M_SMB_ERROR, SMB_CSR(R_SMB_STATUS));
+                __raw_writeq(M_SMB_ERROR, SMB_CSR(R_SMB_STATUS));
                 return -1;
         }
 
-	return (bus_readq(SMB_CSR(R_SMB_DATA)) & 0xff);
+	return (__raw_readq(SMB_CSR(R_SMB_DATA)) & 0xff);
 }
 
 static int xicor_write(uint8_t addr, int b)
 {
-        while (bus_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_BUSY)
+        while (__raw_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_BUSY)
                 ;
 
-	bus_writeq(addr, SMB_CSR(R_SMB_CMD));
-	bus_writeq((addr & 0xff) | ((b & 0xff) << 8), SMB_CSR(R_SMB_DATA));
-	bus_writeq(V_SMB_ADDR(X1241_CCR_ADDRESS) | V_SMB_TT_WR3BYTE,
-		   SMB_CSR(R_SMB_START));
+	__raw_writeq(addr, SMB_CSR(R_SMB_CMD));
+	__raw_writeq((addr & 0xff) | ((b & 0xff) << 8), SMB_CSR(R_SMB_DATA));
+	__raw_writeq(V_SMB_ADDR(X1241_CCR_ADDRESS) | V_SMB_TT_WR3BYTE,
+		     SMB_CSR(R_SMB_START));
 
-        while (bus_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_BUSY)
+        while (__raw_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_BUSY)
                 ;
 
-        if (bus_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_ERROR) {
+        if (__raw_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_ERROR) {
                 /* Clear error bit by writing a 1 */
-                bus_writeq(M_SMB_ERROR, SMB_CSR(R_SMB_STATUS));
+                __raw_writeq(M_SMB_ERROR, SMB_CSR(R_SMB_STATUS));
                 return -1;
         } else {
 		return 0;
@@ -113,9 +113,11 @@ int xicor_set_time(unsigned long t)
 {
 	struct rtc_time tm;
 	int tmp;
+	unsigned long flags;
 
 	to_tm(t, &tm);
 
+	spin_lock_irqsave(&rtc_lock, flags);
 	/* unlock writes to the CCR */
 	xicor_write(X1241REG_SR, X1241REG_SR_WEL);
 	xicor_write(X1241REG_SR, X1241REG_SR_WEL | X1241REG_SR_RWEL);
@@ -160,6 +162,7 @@ int xicor_set_time(unsigned long t)
 	xicor_write(X1241REG_HR, tmp);
 
 	xicor_write(X1241REG_SR, 0);
+	spin_unlock_irqrestore(&rtc_lock, flags);
 
 	return 0;
 }
@@ -167,7 +170,9 @@ int xicor_set_time(unsigned long t)
 unsigned long xicor_get_time(void)
 {
 	unsigned int year, mon, day, hour, min, sec, y2k;
+	unsigned long flags;
 
+	spin_lock_irqsave(&rtc_lock, flags);
 	sec = xicor_read(X1241REG_SC);
 	min = xicor_read(X1241REG_MN);
 	hour = xicor_read(X1241REG_HR);
@@ -183,6 +188,7 @@ unsigned long xicor_get_time(void)
 	mon = xicor_read(X1241REG_MO);
 	year = xicor_read(X1241REG_YR);
 	y2k = xicor_read(X1241REG_Y2K);
+	spin_unlock_irqrestore(&rtc_lock, flags);
 
 	sec = BCD2BIN(sec);
 	min = BCD2BIN(min);