Hi Ben, Magnus,
here is my patch to enable 2x16 bit accesses to the LAN9x1x.
I still not have a HW, so may I ask you to test it and, if applicable,
fix the code?
Best Regards,
Jens
---
drivers/net/smc911x.c | 17 ++++++++++++++++-
1 files changed, 16 insertions(+), 1 deletions(-)
diff --git a/drivers/net/smc911x.c b/drivers/net/smc911x.c
index d22c889..841a64d 100644
--- a/drivers/net/smc911x.c
+++ b/drivers/net/smc911x.c
@@ -30,6 +30,8 @@
#include <net.h>
#include <miiphy.h>
+#define CONFIG_DRIVER_SMC911X_16_BIT 1
+
#ifdef CONFIG_DRIVER_SMC911X_32_BIT
static inline u32 reg_read(u32 addr)
{
@@ -39,8 +41,21 @@ static inline void reg_write(u32 addr, u32 val)
{
*(volatile u32*)addr = val;
}
+#elif CONFIG_DRIVER_SMC911X_16_BIT
+static inline u32 reg_read(u32 addr)
+{
+ u32 val_lo = (u32)(*(volatile u16*)addr);
+ u32 val_hi = (u32)(*(volatile u16*)(addr | 2));
+
+ return (val_hi << 16) | val_lo;
+}
+static inline void reg_write(u32 addr, u32 val)
+{
+ *(volatile u16*)addr = (u16)val;
+ *(volatile u16*)(addr | 2) = (u16)(val >> 16);
+}
#else
-#error "SMC911X: Only 32-bit bus is supported"
+#error "SMC911X: undefined buswidth"
#endif
#define mdelay(n) udelay((n)*1000)
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