Finish STM32 Ethernet header file; Add ethernet driver skeleton

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4147 42af7a65-404d-4744-a932-0658087f49c3

arch/arm/src/stm32/Make.defs

@@ -59,6 +59,10 @@ CHIP_CSRCS	= stm32_allocateheap.c stm32_start.c stm32_rcc.c stm32_lse.c \
 		  stm32_spi.c stm32_usbdev.c stm32_sdio.c stm32_tim.c stm32_i2c.c \
 		  stm32_pwr.c stm32_idle.c stm32_waste.c
 
+ifeq ($(CONFIG_STM32_ETHMAC),y)
+CHIP_CSRCS	+= stm32_eth.c
+endif
+
 ifeq ($(CONFIG_STM32_RCCLOCK),y)
 CHIP_CSRCS	+= stm32_rcclock.c
 endif

arch/arm/src/stm32/stm32_eth.h

@@ -44,7 +44,7 @@
 
 #include "chip.h"
 
-#if STM32_NETHERNET > 1
+#if STM32_NETHERNET > 0
 
 #include "chip/stm32_eth.h"
 
@@ -67,12 +67,13 @@ extern "C" {
  *
  * Description:
  *   Initialize the Ethernet driver for one interface.  If the STM32 chip
- *   supports multiple Ethernet controllers, then bould specific logic
+ *   supports multiple Ethernet controllers, then board specific logic
  *   must implement up_netinitialize() and call this function to initialize
- *   the desiresed interfaces.
+ *   the desired interfaces.
  *
  * Parameters:
- *   None
+ *   intf - In the case where there are multiple EMACs, this value
+ *          identifies which EMAC is to be initialized.
  *
  * Returned Value:
  *   OK on success; Negated errno on failure.
@@ -81,7 +82,9 @@ extern "C" {
  *
  ************************************************************************************/
 
+#if STM32_NETHERNET > 1
 EXTERN int stm32_ethinitialize(int intf);
+#endif
 
 #undef EXTERN
 #if defined(__cplusplus)
@@ -89,6 +92,6 @@ EXTERN int stm32_ethinitialize(int intf);
 #endif
 
 #endif /* __ASSEMBLY__ */
-#endif /* STM32_NETHERNET > 1 */
+#endif /* STM32_NETHERNET > 0 */
 #endif /* __ARCH_ARM_SRC_STM32_STM32_ETH_H */
 

arch/arm/src/stm32/stm32f40xxx_rcc.c

@@ -185,7 +185,7 @@ static inline void rcc_enableahb1(void)
   /* Ethernet MAC clocking */
 
   regval |= (RCC_AHB1ENR_ETHMACEN|RCC_AHB1ENR_ETHMACTXEN|
-             RCC_AHB1ENR_ETHMACRXEN|RCC_AHB1ENR_ETHMACPTPEN)
+             RCC_AHB1ENR_ETHMACRXEN|RCC_AHB1ENR_ETHMACPTPEN);
 #endif
 
 #ifdef CONFIG_STM32_OTGHS