net: add ColdFire support to the smc91x driver

Some embedded ColdFire based boards use the SMC 91x family of ethernet
devices. (For example the Freescale M5249C3 and MoretonBay NETtel).

Add IO access support to the SMC91x driver, and allow this driver to
be configured for ColdFire platforms.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 29 insertions, 1 deletions

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 7029cd50c458..0ba5b8e50a7c 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -907,7 +907,7 @@ config SMC91X
         select CRC32
         select MII
         depends on ARM || REDWOOD_5 || REDWOOD_6 || M32R || SUPERH || \
-                MIPS || BLACKFIN || MN10300
+                MIPS || BLACKFIN || MN10300 || COLDFIRE
         help
           This is a driver for SMC's 91x series of Ethernet chipsets,
           including the SMC91C94 and the SMC91C111. Say Y if you want it
diff --git a/drivers/net/smc91x.h b/drivers/net/smc91x.h
index a6ee883d1b0e..8d2772cc42f2 100644
--- a/drivers/net/smc91x.h
+++ b/drivers/net/smc91x.h
@@ -344,6 +344,34 @@ static inline void LPD7_SMC_outsw (unsigned char* a, int r,
 
 #define SMC_IRQ_FLAGS           IRQF_TRIGGER_HIGH
 
+#elif defined(CONFIG_COLDFIRE)
+
+#define SMC_CAN_USE_8BIT        0
+#define SMC_CAN_USE_16BIT       1
+#define SMC_CAN_USE_32BIT       0
+#define SMC_NOWAIT              1
+
+static inline void mcf_insw(void *a, unsigned char *p, int l)
+{
+        u16 *wp = (u16 *) p;
+        while (l-- > 0)
+                *wp++ = readw(a);
+}
+
+static inline void mcf_outsw(void *a, unsigned char *p, int l)
+{
+        u16 *wp = (u16 *) p;
+        while (l-- > 0)
+                writew(*wp++, a);
+}
+
+#define SMC_inw(a, r)           _swapw(readw((a) + (r)))
+#define SMC_outw(v, a, r)       writew(_swapw(v), (a) + (r))
+#define SMC_insw(a, r, p, l)    mcf_insw(a + r, p, l)
+#define SMC_outsw(a, r, p, l)   mcf_outsw(a + r, p, l)
+
+#define SMC_IRQ_FLAGS           (IRQF_DISABLED)
+
 #else
 
 /*