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)