TM4C129X Ethernet: Add logic to get pre-programmed MAC address from user FLASH registers

arch/arm/src/tiva/Kconfig

@@ -655,13 +655,6 @@ config TIVA_ETHLEDS
 	---help---
 	Enable to use Ethernet LEDs on the board.
 
-config TIVA_BOARDMAC
-	bool "Board MAC"
-	default n
-	---help---
-		If the board-specific logic can provide a MAC address (via
-		tiva_ethernetmac()), then this should be selected.
-
 config TIVA_ETHHDUPLEX
 	bool "Force Half Duplex"
 	default n
@@ -889,6 +882,14 @@ config TIVA_ETHERNET_REGDEBUG
 		Enable very low-level register access debug.  Depends on DEBUG.
 
 endmenu # Tiva Ethernet Configuration
+
+config TIVA_BOARDMAC
+	bool "Board MAC"
+	default n
+	---help---
+		If the board-specific logic can provide a MAC address (via
+		tiva_ethernetmac()), then this should be selected.
+
 endif # TIVA_ETHERNET
 
 if TIVA_SSI

arch/arm/src/tiva/lm3s_ethernet.c

@@ -1410,7 +1410,7 @@ static inline int tiva_ethinitialize(int intf)
 #endif
   priv->ld_dev.d_private = (void*)priv; /* Used to recover private state from dev */
 
-  /* Create a watchdog for timing polling for and timing of transmisstions */
+  /* Create a watchdog for timing polling for and timing of transmissions */
 
 #if TIVA_NETHCONTROLLERS > 1
 # error "A mechanism to associate base address an IRQ with an interface is needed"
@@ -1422,7 +1422,7 @@ static inline int tiva_ethinitialize(int intf)
 
   /* If the board can provide us with a MAC address, get the address
    * from the board now.  The MAC will not be applied until tiva_ifup()
-   * is caleld (and the MAC can be overwritten with a netdev ioctl call).
+   * is called (and the MAC can be overwritten with a netdev ioctl call).
    */
 
 #ifdef CONFIG_TIVA_BOARDMAC

arch/arm/src/tiva/tiva_ethernet.h

@@ -98,6 +98,21 @@ extern "C"
 int tiva_ethinitialize(int intf);
 #endif
 
+/****************************************************************************
+ * Name: tiva_ethernetmac
+ *
+ * Description:
+ *   For the Ethernet Eval Kits, the MAC address will be stored in the non-
+ *   volatile USER0 and USER1 registers.  If CONFIG_TIVA_BOARDMAC is defined,
+ *   this function will obtain the MAC address from these registers.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_TIVA_BOARDMAC
+struct ether_addr;
+void tiva_ethernetmac(struct ether_addr *ethaddr);
+#endif
+
 #undef EXTERN
 #if defined(__cplusplus)
 }

arch/arm/src/tiva/tm4c_ethernet.c

@@ -3938,6 +3938,15 @@ int tiva_ethinitialize(int intf)
   priv->txpoll        = wd_create();   /* Create periodic poll timer */
   priv->txtimeout     = wd_create();   /* Create TX timeout timer */
 
+  /* If the board can provide us with a MAC address, get the address
+   * from the board now.  The MAC will not be applied until tiva_ifup()
+   * is called (and the MAC can be overwritten with a netdev ioctl call).
+   */
+
+#ifdef CONFIG_TIVA_BOARDMAC
+   tiva_ethernetmac(&priv->dev.d_mac);
+#endif
+
   /* Enable power and clocking to the Ethernet MAC
    *
    * - Enable Power:  Applies power (only) to the EMAC peripheral.  This is not

configs/dk-tm4c129x/src/Makefile

@@ -51,6 +51,10 @@ ifeq ($(CONFIG_ARCH_BUTTONS),y)
 CSRCS += tm4c_buttons.c
 endif
 
+ifeq ($(CONFIG_TIVA_ETHERNET),y)
+CSRCS += tm4c_ethernet.c
+endif
+
 ifeq ($(CONFIG_NSH_ARCHINIT),y)
 CSRCS += tm4c_nsh.c
 endif

configs/dk-tm4c129x/src/tm4c_ethernet.c

@@ -0,0 +1,99 @@
+/************************************************************************************
+ * configs/dk-tm4c129x/src/tm4c_ethernet.c
+ *
+ *   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+ *   Authors: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <debug.h>
+#include <assert.h>
+
+#include <arch/board/board.h>
+#include <net/ethernet.h>
+
+#include "up_arch.h"
+#include "chip.h"
+#include "chip/tiva_flash.h"
+#include "tiva_ethernet.h"
+
+/************************************************************************************
+ * Pre-processor Definitions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: tiva_ethernetmac
+ *
+ * Description:
+ *   For the Ethernet Eval Kits, the MAC address will be stored in the non-volatile
+ *   USER0 and USER1 registers.  If CONFIG_TIVA_BOARDMAC is defined, this function
+ *   will obtain the MAC address from these registers.
+ *
+ ************************************************************************************/
+
+#ifdef CONFIG_TIVA_BOARDMAC
+void tiva_ethernetmac(struct ether_addr *ethaddr)
+{
+  uint32_t user0;
+  uint32_t user1;
+
+  /* Get the current value of the user registers */
+
+  user0 = getreg32(TIVA_FLASH_USERREG0);
+  user1 = getreg32(TIVA_FLASH_USERREG1);
+
+  nlldbg("user: %06x:%06x\n", user1 & 0x00ffffff, user0 & 0x00ffffff);
+  DEBUGASSERT(user0 != 0xffffffff && user1 != 0xffffffff);
+
+  /* Re-format that MAC address the way that uIP expects to see it */
+
+  ethaddr->ether_addr_octet[0] = ((user0 >>  0) & 0xff);
+  ethaddr->ether_addr_octet[1] = ((user0 >>  8) & 0xff);
+  ethaddr->ether_addr_octet[2] = ((user0 >> 16) & 0xff);
+  ethaddr->ether_addr_octet[3] = ((user1 >>  0) & 0xff);
+  ethaddr->ether_addr_octet[4] = ((user1 >>  8) & 0xff);
+  ethaddr->ether_addr_octet[5] = ((user1 >> 16) & 0xff);
+}
+#endif

configs/eagle100/include/board.h

@@ -123,20 +123,5 @@
 
 void tiva_boardinitialize(void);
 
-/************************************************************************************
- * Name: tiva_ethernetmac
- *
- * Description:
- *   For the Ethernet Eval Kits, the MAC address will be stored in the non-volatile
- *   USER0 and USER1 registers.  If CONFIG_TIVA_BOARDMAC is defined, this function
- *   will obtain the MAC address from these registers.
- *
- ************************************************************************************/
-
-#ifdef CONFIG_TIVA_BOARDMAC
-struct ether_addr;
-void tiva_ethernetmac(struct ether_addr *ethaddr);
-#endif
-
 #endif /* __ASSEMBLY__ */
 #endif  /* __ARCH_BOARD_BOARD_H */

configs/eagle100/src/up_ethernet.c

@@ -49,9 +49,10 @@
 
 #include "up_arch.h"
 #include "chip.h"
+#include "tiva_ethernet.h"
 
 /************************************************************************************
- * Definitions
+ * Pre-processor Definitions
  ************************************************************************************/
 
 /************************************************************************************

configs/ekk-lm3s9b96/include/board.h

@@ -124,20 +124,5 @@
 
 void tiva_boardinitialize(void);
 
-/************************************************************************************
- * Name: tiva_ethernetmac
- *
- * Description:
- *   For the Ethernet Eval Kits, the MAC address will be stored in the non-volatile
- *   USER0 and USER1 registers.  If CONFIG_TIVA_BOARDMAC is defined, this function
- *   will obtain the MAC address from these registers.
- *
- ************************************************************************************/
-
-#ifdef CONFIG_TIVA_BOARDMAC
-struct ether_addr;
-void tiva_ethernetmac(struct ether_addr *ethaddr);
-#endif
-
 #endif /* __ASSEMBLY__ */
 #endif  /* __ARCH_BOARD_BOARD_H */

configs/ekk-lm3s9b96/src/up_ethernet.c

@@ -50,9 +50,10 @@
 
 #include "up_arch.h"
 #include "chip.h"
+#include "tiva_ethernet.h"
 
 /************************************************************************************
- * Definitions
+ * Pre-processor Definitions
  ************************************************************************************/
 
 /************************************************************************************

configs/lm3s6432-s2e/include/board.h

@@ -125,20 +125,5 @@
 
 void tiva_boardinitialize(void);
 
-/************************************************************************************
- * Name: tiva_ethernetmac
- *
- * Description:
- *   For the MDL-S2E Reference Design, the MAC address will be stored in the
- *   non-volatile USER0 and USER1 registers.  If CONFIG_TIVA_BOARDMAC is defined,
- *   this function will obtain the MAC address from these registers.
- *
- ************************************************************************************/
-
-#ifdef CONFIG_TIVA_BOARDMAC
-struct ether_addr;
-void tiva_ethernetmac(struct ether_addr *ethaddr);
-#endif
-
 #endif /* __ASSEMBLY__ */
 #endif  /* __ARCH_BOARD_BOARD_H */

configs/lm3s6432-s2e/src/up_ethernet.c

@@ -49,9 +49,10 @@
 
 #include "up_arch.h"
 #include "chip.h"
+#include "tiva_ethernet.h"
 
 /************************************************************************************
- * Definitions
+ * Pre-processor oDefinitions
  ************************************************************************************/
 
 /************************************************************************************

configs/lm3s6965-ek/include/board.h

@@ -123,20 +123,5 @@
 
 void tiva_boardinitialize(void);
 
-/************************************************************************************
- * Name: tiva_ethernetmac
- *
- * Description:
- *   For the Ethernet Eval Kits, the MAC address will be stored in the non-volatile
- *   USER0 and USER1 registers.  If CONFIG_TIVA_BOARDMAC is defined, this function
- *   will obtain the MAC address from these registers.
- *
- ************************************************************************************/
-
-#ifdef CONFIG_TIVA_BOARDMAC
-struct ether_addr;
-void tiva_ethernetmac(struct ether_addr *ethaddr);
-#endif
-
 #endif /* __ASSEMBLY__ */
 #endif  /* __ARCH_BOARD_BOARD_H */

configs/lm3s6965-ek/src/up_ethernet.c

@@ -49,9 +49,10 @@
 
 #include "up_arch.h"
 #include "chip.h"
+#include "tiva_ethernet.h"
 
 /************************************************************************************
- * Definitions
+ * Pre-processor Definitions
  ************************************************************************************/
 
 /************************************************************************************

configs/lm3s8962-ek/include/board.h

@@ -123,20 +123,5 @@
 
 void tiva_boardinitialize(void);
 
-/************************************************************************************
- * Name: tiva_ethernetmac
- *
- * Description:
- *   For the Ethernet Eval Kits, the MAC address will be stored in the non-volatile
- *   USER0 and USER1 registers.  If CONFIG_TIVA_BOARDMAC is defined, this function
- *   will obtain the MAC address from these registers.
- *
- ************************************************************************************/
-
-#ifdef CONFIG_TIVA_BOARDMAC
-struct ether_addr;
-void tiva_ethernetmac(struct ether_addr *ethaddr);
-#endif
-
 #endif /* __ASSEMBLY__ */
 #endif  /* __ARCH_BOARD_BOARD_H */

configs/lm3s8962-ek/src/up_ethernet.c

@@ -49,9 +49,10 @@
 
 #include "up_arch.h"
 #include "chip.h"
+#include "tiva_ethernet.h"
 
 /************************************************************************************
- * Definitions
+ * Pre-processor Definitions
  ************************************************************************************/
 
 /************************************************************************************