Get MAC address from USER registers

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1810 42af7a65-404d-4744-a932-0658087f49c3

3 files changed, 101 insertions, 1 deletions

diff --git a/nuttx/configs/eagle100/README.txt b/nuttx/configs/eagle100/README.txt
index fe72213c7..a3a33aa47 100644
--- a/nuttx/configs/eagle100/README.txt
+++ b/nuttx/configs/eagle100/README.txt
@@ -166,6 +166,11 @@ Eagle100-specific Configuration Options
 	CONFIG_UARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity
 	CONFIG_UARTn_2STOP - Two stop bits
 
+	CONFIG_LM3S_ETHERNET - This must be set (along with CONFIG_NET)
+	  to build the LM3S Ethernet driver
+	CONFIG_LM3S_BOARDMAC - If the board-specific logic can provide
+	  a MAC address (via lm3s_ethernetmac()), then this should be selected.
+
 Configurations
 ^^^^^^^^^^^^^^
 
diff --git a/nuttx/configs/eagle100/src/Makefile b/nuttx/configs/eagle100/src/Makefile
index 80f3d2741..e79c84163 100644
--- a/nuttx/configs/eagle100/src/Makefile
+++ b/nuttx/configs/eagle100/src/Makefile
@@ -39,7 +39,7 @@ CFLAGS		+= -I$(TOPDIR)/sched
 
 ASRCS		= 
 AOBJS		= $(ASRCS:.S=$(OBJEXT))
-CSRCS		= up_boot.c up_leds.c
+CSRCS		= up_boot.c up_leds.c up_ethernet.c
 COBJS		= $(CSRCS:.c=$(OBJEXT))
 
 SRCS		= $(ASRCS) $(CSRCS)
diff --git a/nuttx/configs/eagle100/src/up_ethernet.c b/nuttx/configs/eagle100/src/up_ethernet.c
new file mode 100644
index 000000000..4dfbeae3f
--- /dev/null
+++ b/nuttx/configs/eagle100/src/up_ethernet.c
@@ -0,0 +1,95 @@
+/************************************************************************************

+ * configs/eagle100/src/up_ethernet.c

+ * arch/arm/src/board/up_ethernet.c

+ *

+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.

+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>

+ *

+ * 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 <sys/types.h>

+

+#include <arch/board/board.h>

+#include <net/ethernet.h>

+

+#include "up_arch.h"

+#include "chip.h"

+

+/************************************************************************************

+ * Definitions

+ ************************************************************************************/

+

+/************************************************************************************

+ * Private Functions

+ ************************************************************************************/

+

+/************************************************************************************

+ * Public Functions

+ ************************************************************************************/

+

+/************************************************************************************

+ * Name: lm3s_ethernetmac

+ *

+ * Description:

+ *   For the Ethernet Eval Kits, the MAC address will be stored in the non-volatile

+ *   USER0 and USER1 registers.  If CONFIG_LM3S_BOARDMAC is defined, this function

+ *   will obtain the MAC address from these registers.

+ *

+ ************************************************************************************/

+

+#ifdef CONFIG_LM3S_BOARDMAC

+void lm3s_ethernetmac(struct ether_addr *ethaddr)

+{

+struct ether_addr

+{

+  uint32 user0;

+  uint32 user1;

+

+  /* Get the current value of the user registers */

+

+  user0 = getreg32();

+  user1 = getreg32();

+  DEBUGASSERT(user0 != 0xffffffff && user1 == 0xffffffff);

+

+  /* Re-format that MAC address the way that uIP expects to see it */

+

+  ethaddr->ether_addr_octet.addr[0] = ((user0 >>  0) & 0xff);

+  ethaddr->ether_addr_octet.addr[1] = ((user0 >>  8) & 0xff);

+  ethaddr->ether_addr_octet.addr[2] = ((user0 >> 16) & 0xff);

+  ethaddr->ether_addr_octet.addr[3] = ((user1 >>  0) & 0xff);

+  ethaddr->ether_addr_octet.addr[4] = ((user1 >>  8) & 0xff);

+  ethaddr->ether_addr_octet.addr[5] = ((user1 >> 16) & 0xff);

+}

+#endif
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