Jay Monkman <jmonkman@frasca.com> submitted the eth_comm BSP for a PPC860

based board.

1 files changed, 187 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/powerpc/eth_comm/startup/bspstart.c b/c/src/lib/libbsp/powerpc/eth_comm/startup/bspstart.c
new file mode 100644
index 0000000000..beb734031f
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/eth_comm/startup/bspstart.c
@@ -0,0 +1,187 @@
+/*  bsp_start()
+ *
+ *  This routine starts the application.  It includes application,
+ *  board, and monitor specific initialization and configuration.
+ *  The generic CPU dependent initialization has been performed
+ *  before this routine is invoked.
+ *
+ *  The MPC860 specific stuff was written by Jay Monkman (jmonkman@frasca.com)
+ *
+ *  COPYRIGHT (c) 1989-1998.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+#include <mpc860.h>
+#include <rtems/libio.h>
+ 
+#include <libcsupport.h>
+ 
+#include <string.h>
+#include <info.h>
+ 
+#ifdef STACK_CHECKER_ON
+#include <stackchk.h>
+#endif
+
+boardinfo_t M860_binfo;
+
+
+/*
+ *  The original table from the application and our copy of it with
+ *  some changes.
+ */
+extern rtems_configuration_table Configuration;
+
+rtems_configuration_table  BSP_Configuration;
+
+rtems_cpu_table Cpu_table;
+
+char *rtems_progname;
+
+/*
+ *  Use the shared implementations of the following routines
+ */
+void bsp_postdriver_hook(void);
+void bsp_libc_init( void *, unsigned32, int );
+
+/*
+ *  Function:   bsp_pretasking_hook
+ *  Created:    95/03/10
+ *
+ *  Description:
+ *      BSP pretasking hook.  Called just before drivers are initialized.
+ *      Used to setup libc and install any BSP extensions.
+ *
+ *  NOTES:
+ *      Must not use libc (to do io) from here, since drivers are
+ *      not yet initialized.
+ *
+ */
+ 
+void
+bsp_pretasking_hook(void)
+{
+  extern int       _end;
+  rtems_unsigned32  heap_start;
+
+  /* 
+   * Let's check to see if the size of M860_binfo is what
+   * it should be. It might not be if the info.h files
+   * for RTEMS and the bootloader define boardinfo_t
+   * differently.
+   */
+
+  /* Oops. printf() won't work yet, since the console is not initialized.
+     I should probably find some way of doing this though.
+  if (M860_binfo.size != sizeof(boardinfo_t)) {
+      printf("The size of the Board Info Block appears to be incorrect.\n");
+      printf(" This could occur if the 'info.h' files for RTEMS and the\n");
+      printf(" bootloader differ in their definition of boardinfo_t\n");
+  }
+  */
+  heap_start = (rtems_unsigned32) &_end;
+
+  /* Align the heap on a natural boundary (4 bytes?) */
+  if (heap_start & (CPU_ALIGNMENT-1)) {
+    heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
+  }
+  /* set up a 256K heap */
+  bsp_libc_init((void *) heap_start, 256 * 1024, 0);
+  
+#ifdef STACK_CHECKER_ON
+  /*
+   *  Initialize the stack bounds checker
+   *  We can either turn it on here or from the app.
+   */
+  
+  Stack_check_Initialize();
+#endif
+  
+#ifdef RTEMS_DEBUG
+  rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
+#endif
+}
+
+
+void bsp_start(void)
+{
+  extern int _end;
+  rtems_unsigned32  heap_start;
+  rtems_unsigned32  ws_start;
+  /*
+   *  Allocate the memory for the RTEMS Work Space.  This can come from
+   *  a variety of places: hard coded address, malloc'ed from outside
+   *  RTEMS world (e.g. simulator or primitive memory manager), or (as
+   *  typically done by stock BSPs) by subtracting the required amount
+   *  of work space from the last physical address on the CPU board.
+   */
+
+  /*
+   *  Need to "allocate" the memory for the RTEMS Workspace and
+   *  tell the RTEMS configuration where it is.  This memory is
+   *  not malloc'ed.  It is just "pulled from the air".
+   */
+
+  heap_start = (rtems_unsigned32) &_end;
+  if (heap_start & (CPU_ALIGNMENT-1))
+    heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
+
+
+  ws_start = heap_start + (256 * 1024);
+  if (ws_start & ((512 * 1024) - 1)) {  /* align to 512K boundary */
+    ws_start = (ws_start + (512 * 1024)) & ~((512 * 1024) - 1);
+  }
+
+  BSP_Configuration.work_space_start = (void *)ws_start;
+  BSP_Configuration.work_space_size = 512 * 1024; 
+
+  /*
+   *  initialize the CPU table for this BSP
+   */
+
+  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
+  Cpu_table.postdriver_hook = bsp_postdriver_hook;
+  Cpu_table.interrupt_stack_size = 4 * 1024;
+
+  Cpu_table.clicks_per_usec = 1;  /* for 4MHz extclk */
+  Cpu_table.serial_per_sec = 10000000;
+  Cpu_table.serial_external_clock = 1;
+  Cpu_table.serial_xon_xoff = 0;
+  Cpu_table.serial_cts_rts = 1;
+  Cpu_table.serial_rate = 9600;
+  Cpu_table.timer_average_overhead = 0;
+  Cpu_table.timer_least_valid = 0;
+  Cpu_table.clock_speed = 40000000;
+
+  /* 
+   * Call this in case we use TERMIOS for console I/O
+   */
+  m860_console_reserve_resources(&BSP_Configuration);
+
+  /*
+   * Since we are currently autodetecting whether to use SCC1 or
+   * the FEC for ethernet, we set up a register in the ethernet
+   * transciever that is used for 10/100 Mbps ethernet now, so that 
+   * we can attempt to read it later in rtems_enet_driver_attach()
+  */
+  m860.fec.mii_speed = 0x0a;
+  m860.fec.mii_data = 0x680a0000;
+
+
+  m860.scc2.sccm=0;
+  m860.scc2p.rbase=0;
+  m860.scc2p.tbase=0;
+  M860ExecuteRISC(M860_CR_OP_STOP_TX | M860_CR_CHAN_SCC2);
+
+  mmu_init(); 
+}
+
+