[ARM] 3406/1: lpd7x: compilation fix for smc91x

Patch from Marc Singer

Reworking of the adaptation macros to allow driver to compile again
for the lpd7x's.  Also, support added for the lh79520 so it may use
the smc91x.

Signed-off-by: Marc Singer <elf@buici.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 28 insertions, 16 deletions

diff --git a/drivers/net/smc91x.h b/drivers/net/smc91x.h
index e1be1af..c88f164 100644
--- a/drivers/net/smc91x.h
+++ b/drivers/net/smc91x.h
@@ -242,15 +242,17 @@ SMC_outw(u16 val, void __iomem *ioaddr, int reg)
 #define RPC_LSA_DEFAULT		RPC_LED_TX_RX
 #define RPC_LSB_DEFAULT		RPC_LED_100_10
 
-#elif	defined(CONFIG_MACH_LPD7A400) || defined(CONFIG_MACH_LPD7A404)
+#elif   defined(CONFIG_MACH_LPD79520) \
+     || defined(CONFIG_MACH_LPD7A400) \
+     || defined(CONFIG_MACH_LPD7A404)
 
-/* The LPD7A40X_IOBARRIER is necessary to overcome a mismatch between
- * the way that the CPU handles chip selects and the way that the SMC
- * chip expects the chip select to operate.  Refer to
+/* The LPD7X_IOBARRIER is necessary to overcome a mismatch between the
+ * way that the CPU handles chip selects and the way that the SMC chip
+ * expects the chip select to operate.  Refer to
  * Documentation/arm/Sharp-LH/IOBarrier for details.  The read from
- * IOBARRIER is a byte as a least-common denominator of possible
- * regions to use as the barrier.  It would be wasteful to read 32
- * bits from a byte oriented region.
+ * IOBARRIER is a byte, in order that we read the least-common
+ * denominator.  It would be wasteful to read 32 bits from an 8-bit
+ * accessible region.
  *
  * There is no explicit protection against interrupts intervening
  * between the writew and the IOBARRIER.  In SMC ISR there is a
@@ -269,25 +271,35 @@ SMC_outw(u16 val, void __iomem *ioaddr, int reg)
 #define SMC_CAN_USE_16BIT	1
 #define SMC_CAN_USE_32BIT	0
 #define SMC_NOWAIT		0
-#define LPD7A40X_IOBARRIER	readb (IOBARRIER_VIRT)
+#define LPD7X_IOBARRIER		readb (IOBARRIER_VIRT)
 
-#define SMC_inw(a,r)		readw ((void*) ((a) + (r)))
-#define SMC_insw(a,r,p,l)	readsw ((void*) ((a) + (r)), p, l)
-#define SMC_outw(v,a,r)	     ({ writew ((v), (a) + (r)); LPD7A40X_IOBARRIER; })
+#define SMC_inw(a,r)\
+   ({ unsigned short v = readw ((void*) ((a) + (r))); LPD7X_IOBARRIER; v; })
+#define SMC_outw(v,a,r)	  ({ writew ((v), (a) + (r)); LPD7X_IOBARRIER; })
 
-#define SMC_outsw		LPD7A40X_SMC_outsw
+#define SMC_insw		LPD7_SMC_insw
+static inline void LPD7_SMC_insw (unsigned char* a, int r,
+				  unsigned char* p, int l)
+{
+	unsigned short* ps = (unsigned short*) p;
+	while (l-- > 0) {
+		*ps++ = readw (a + r);
+		LPD7X_IOBARRIER;
+	}
+}
 
-static inline void LPD7A40X_SMC_outsw(unsigned long a, int r,
-				     unsigned char* p, int l)
+#define SMC_outsw		LPD7_SMC_outsw
+static inline void LPD7_SMC_outsw (unsigned char* a, int r,
+				   unsigned char* p, int l)
 {
 	unsigned short* ps = (unsigned short*) p;
 	while (l-- > 0) {
 		writew (*ps++, a + r);
-		LPD7A40X_IOBARRIER;
+		LPD7X_IOBARRIER;
 	}
 }
 
-#define SMC_INTERRUPT_PREAMBLE	LPD7A40X_IOBARRIER
+#define SMC_INTERRUPT_PREAMBLE	LPD7X_IOBARRIER
 
 #define RPC_LSA_DEFAULT		RPC_LED_TX_RX
 #define RPC_LSB_DEFAULT		RPC_LED_100_10