[PATCH] m32r: M3A-2170(Mappi-III) IDE support

This patch is for supporting IDE interface for M3A-2170(Mappi-III) board.

Signed-off-by: Mamoru Sakugawa <sakugawa@linux-m32r.org>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 48 insertions, 26 deletions

diff --git a/arch/m32r/kernel/io_mappi3.c b/arch/m32r/kernel/io_mappi3.c
index 6716ffea769a..f80321a58764 100644
--- a/arch/m32r/kernel/io_mappi3.c
+++ b/arch/m32r/kernel/io_mappi3.c
@@ -36,12 +36,13 @@ static inline void *_port2addr(unsigned long port)
         return (void *)(port + NONCACHE_OFFSET);
 }
 
-#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
+#if defined(CONFIG_IDE)
 static inline void *__port2addr_ata(unsigned long port)
 {
         static int      dummy_reg;
 
         switch (port) {
+          /* IDE0 CF */
         case 0x1f0:     return (void *)0xb4002000;
         case 0x1f1:     return (void *)0xb4012800;
         case 0x1f2:     return (void *)0xb4012002;
@@ -51,6 +52,17 @@ static inline void *__port2addr_ata(unsigned long port)
         case 0x1f6:     return (void *)0xb4012006;
         case 0x1f7:     return (void *)0xb4012806;
         case 0x3f6:     return (void *)0xb401200e;
+          /* IDE1 IDE */
+        case 0x170:     return (void *)0xb4810000;  /* Data 16bit */
+        case 0x171:     return (void *)0xb4810002;  /* Features / Error */
+        case 0x172:     return (void *)0xb4810004;  /* Sector count */
+        case 0x173:     return (void *)0xb4810006;  /* Sector number */
+        case 0x174:     return (void *)0xb4810008;  /* Cylinder low */
+        case 0x175:     return (void *)0xb481000a;  /* Cylinder high */
+        case 0x176:     return (void *)0xb481000c;  /* Device head */
+        case 0x177:     return (void *)0xb481000e;  /* Command     */
+        case 0x376:     return (void *)0xb480800c;  /* Device control / Alt status */
+
         default:        return (void *)&dummy_reg;
         }
 }
@@ -108,8 +120,9 @@ unsigned char _inb(unsigned long port)
 {
         if (port >= LAN_IOSTART && port < LAN_IOEND)
                 return _ne_inb(PORT2ADDR_NE(port));
-#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
-        else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
+#if defined(CONFIG_IDE)
+        else if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
+                  ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
                 return *(volatile unsigned char *)__port2addr_ata(port);
         }
 #endif
@@ -127,8 +140,9 @@ unsigned short _inw(unsigned long port)
 {
         if (port >= LAN_IOSTART && port < LAN_IOEND)
                 return _ne_inw(PORT2ADDR_NE(port));
-#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
-        else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
+#if defined(CONFIG_IDE)
+        else if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
+                  ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
                 return *(volatile unsigned short *)__port2addr_ata(port);
         }
 #endif
@@ -185,8 +199,9 @@ void _outb(unsigned char b, unsigned long port)
         if (port >= LAN_IOSTART && port < LAN_IOEND)
                 _ne_outb(b, PORT2ADDR_NE(port));
         else
-#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
-        if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
+#if defined(CONFIG_IDE)
+        if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
+                  ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
                 *(volatile unsigned char *)__port2addr_ata(port) = b;
         } else
 #endif
@@ -203,8 +218,9 @@ void _outw(unsigned short w, unsigned long port)
         if (port >= LAN_IOSTART && port < LAN_IOEND)
                 _ne_outw(w, PORT2ADDR_NE(port));
         else
-#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
-        if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
+#if defined(CONFIG_IDE)
+        if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
+                  ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
                 *(volatile unsigned short *)__port2addr_ata(port) = w;
         } else
 #endif
@@ -253,8 +269,9 @@ void _insb(unsigned int port, void * addr, unsigned long count)
 {
         if (port >= LAN_IOSTART && port < LAN_IOEND)
                 _ne_insb(PORT2ADDR_NE(port), addr, count);
-#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
-        else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
+#if defined(CONFIG_IDE)
+        else if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
+                  ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
                 unsigned char *buf = addr;
                 unsigned char *portp = __port2addr_ata(port);
                 while (count--)
@@ -289,8 +306,9 @@ void _insw(unsigned int port, void * addr, unsigned long count)
                 pcc_ioread_word(9, port, (void *)addr, sizeof(unsigned short),
                                 count, 1);
 #endif
-#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
-        } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
+#if defined(CONFIG_IDE)
+        } else if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
+                  ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
                 portp = __port2addr_ata(port);
                 while (count--)
                         *buf++ = *(volatile unsigned short *)portp;
@@ -321,8 +339,9 @@ void _outsb(unsigned int port, const void * addr, unsigned long count)
                 portp = PORT2ADDR_NE(port);
                 while (count--)
                         _ne_outb(*buf++, portp);
-#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
-        } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
+#if defined(CONFIG_IDE)
+        } else if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
+                  ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
                 portp = __port2addr_ata(port);
                 while (count--)
                         *(volatile unsigned char *)portp = *buf++;
@@ -348,8 +367,9 @@ void _outsw(unsigned int port, const void * addr, unsigned long count)
                 portp = PORT2ADDR_NE(port);
                 while (count--)
                         *(volatile unsigned short *)portp = *buf++;
-#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
-        } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
+#if defined(CONFIG_IDE)
+        } else if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
+                  ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
                 portp = __port2addr_ata(port);
                 while (count--)
                         *(volatile unsigned short *)portp = *buf++;
diff --git a/arch/m32r/kernel/setup_mappi3.c b/arch/m32r/kernel/setup_mappi3.c
index 9c79341a7b45..f6ecdf7f555c 100644
--- a/arch/m32r/kernel/setup_mappi3.c
+++ b/arch/m32r/kernel/setup_mappi3.c
@@ -151,7 +151,7 @@ void __init init_IRQ(void)
         disable_mappi3_irq(M32R_IRQ_INT1);
 #endif /* CONFIG_USB */
 
-        /* ICUCR40: CFC IREQ */
+        /* CFC IREQ */
         irq_desc[PLD_IRQ_CFIREQ].status = IRQ_DISABLED;
         irq_desc[PLD_IRQ_CFIREQ].handler = &mappi3_irq_type;
         irq_desc[PLD_IRQ_CFIREQ].action = 0;
@@ -160,7 +160,7 @@ void __init init_IRQ(void)
         disable_mappi3_irq(PLD_IRQ_CFIREQ);
 
 #if defined(CONFIG_M32R_CFC)
-        /* ICUCR41: CFC Insert */
+        /* ICUCR41: CFC Insert & eject */
         irq_desc[PLD_IRQ_CFC_INSERT].status = IRQ_DISABLED;
         irq_desc[PLD_IRQ_CFC_INSERT].handler = &mappi3_irq_type;
         irq_desc[PLD_IRQ_CFC_INSERT].action = 0;
@@ -168,14 +168,16 @@ void __init init_IRQ(void)
         icu_data[PLD_IRQ_CFC_INSERT].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD00;
         disable_mappi3_irq(PLD_IRQ_CFC_INSERT);
 
-        /* ICUCR42: CFC Eject */
-        irq_desc[PLD_IRQ_CFC_EJECT].status = IRQ_DISABLED;
-        irq_desc[PLD_IRQ_CFC_EJECT].handler = &mappi3_irq_type;
-        irq_desc[PLD_IRQ_CFC_EJECT].action = 0;
-        irq_desc[PLD_IRQ_CFC_EJECT].depth = 1;  /* disable nested irq */
-        icu_data[PLD_IRQ_CFC_EJECT].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
-        disable_mappi3_irq(PLD_IRQ_CFC_EJECT);
 #endif /* CONFIG_M32R_CFC */
+
+        /* IDE IREQ */
+        irq_desc[PLD_IRQ_IDEIREQ].status = IRQ_DISABLED;
+        irq_desc[PLD_IRQ_IDEIREQ].handler = &mappi3_irq_type;
+        irq_desc[PLD_IRQ_IDEIREQ].action = 0;
+        irq_desc[PLD_IRQ_IDEIREQ].depth = 1;    /* disable nested irq */
+        icu_data[PLD_IRQ_IDEIREQ].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
+        disable_mappi3_irq(PLD_IRQ_IDEIREQ);
+
 }
 
 #if defined(CONFIG_SMC91X)