2006-04-24 Jiri Gaisler <jiri@gaisler.com>

		Edvin Catovic <edvin@gaisler.com>


	PR bsps/972
	* ChangeLog, Makefile.am, configure.ac, amba/amba.c, clock/ckinit.c,
	console/Makefile.am, console/console.c, console/debugputs.c,
	include/Makefile.am, include/amba.h, include/bsp.h, include/leon.h,
	leon_smc91111/leon_smc91111.c, startup/bspstart.c, timer/timer.c,
	tools/Makefile.am, wrapup/Makefile.am: Added Shared Memory Support
	Driver.  Added Leon Gaisler Research Ethernet support. Enhanced AMBA
	bus support.
	* console/debugprintf.c, console/spacewire.c, include/spacewire.h,
	leon_greth/.cvsignore, leon_greth/Makefile.am,
	leon_greth/leon_greth.c, shmsupp/.cvsignore, shmsupp/Makefile.am,
	shmsupp/addrconv.c, shmsupp/getcfg.c, shmsupp/lock.c,
	shmsupp/mpisr.c: New files.

1 files changed, 71 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/sparc/leon3/leon_greth/leon_greth.c b/c/src/lib/libbsp/sparc/leon3/leon_greth/leon_greth.c
new file mode 100644
index 0000000000..29684ebae7
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/leon3/leon_greth/leon_greth.c
@@ -0,0 +1,71 @@
+/*
+ *  LEON3 Opencores Ethernet MAC Configuration Information
+ *
+ *  COPYRIGHT (c) 2004.
+ *  Gaisler Research
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  leon_open_eth.c,v 1.1.2.1 2005/10/05 19:26:00 joel Exp
+ */
+
+
+#include <bsp.h>
+#include <libchip/greth.h>
+/*#if (GRETH_DEBUG & GRETH_DEBUG_PRINT_REGISTERS)*/
+#include <stdio.h>
+/*#endif*/
+
+/*
+ * Default sizes of transmit and receive descriptor areas
+ */
+#define RDA_COUNT     32
+#define TDA_COUNT     32
+
+greth_configuration_t leon_greth_configuration; 
+
+int rtems_leon_greth_driver_attach(
+  struct rtems_bsdnet_ifconfig *config,
+  int attach
+)
+{
+  int device_found = 0;
+  int i;
+  unsigned int conf, iobar;
+  unsigned int base_addr = 0; /* avoid warnings */
+  unsigned int eth_irq = 0;   /* avoid warnings */
+
+  /* Scan for MAC AHB slave interface */
+  for (i = 0; i < amba_conf.apbslv.devnr; i++)
+  {
+    conf = amba_get_confword(amba_conf.apbslv, i, 0);
+    if ((amba_vendor(conf) == VENDOR_GAISLER) &&
+        (amba_device(conf) == GAISLER_ETHMAC))
+    {
+      iobar = amba_apb_get_membar(amba_conf.apbslv, i);
+      base_addr = amba_iobar_start(amba_conf.apbmst, iobar);
+      eth_irq = amba_irq(conf) + 0x10;
+      device_found = 1;
+      break;
+    }
+  }
+
+  if (device_found) 
+  {
+    /* clear control register and reset NIC */
+    *(volatile int *) base_addr = 0;
+    *(volatile int *) base_addr = GRETH_CTRL_RST;
+    *(volatile int *) base_addr = 0;
+    leon_greth_configuration.base_address = base_addr;
+    leon_greth_configuration.vector = eth_irq;
+    leon_greth_configuration.txd_count = TDA_COUNT;
+    leon_greth_configuration.rxd_count = RDA_COUNT;
+    if (rtems_greth_driver_attach( config, &leon_greth_configuration )) {
+      LEON_Clear_interrupt(leon_greth_configuration.vector);
+      LEON_Unmask_interrupt(leon_greth_configuration.vector);
+    } 
+  }
+  return 0;
+}