2005-07-06 Markku Puro <markku.puro@kopteri.net>

	* .cvsignore, ChangeLog, Makefile.am, README, bsp_specs, configure.ac,
	clock/clockdrv.c, console/conio.c, console/console.c,
	console/defaultfont.c, include/arm_mode_bits.h, include/asm_macros.h,
	include/bsp.h, include/bspopts.h.in, include/conio.h, include/gba.h,
	include/gba_registers.h, include/tm27.h, irq/bsp_irq_asm.S,
	irq/bsp_irq_init.c, irq/irq.c, irq/irq.h, irq/irq_asm.S,
	irq/irq_init.c, start/logo.S, start/start.S, startup/bspstart.c,
	startup/cpu.c, startup/cpu_asm.S, startup/exit.c, startup/linkcmds,
	timer/timer.c: New files.

1 files changed, 197 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/arm/gba/startup/bspstart.c b/c/src/lib/libbsp/arm/gba/startup/bspstart.c
new file mode 100644
index 0000000000..e21effe7d0
--- /dev/null
+++ b/c/src/lib/libbsp/arm/gba/startup/bspstart.c
@@ -0,0 +1,197 @@
+/**
+ *  @file bspstart.c
+ *
+ *  This file contains the GBA BSP startup package.
+ *  It includes application, board, and monitor specific initialization and
+ *  configuration. The generic CPU dependent initialization has been
+ *  performed before this routine is invoked.
+ */
+/*
+ *  RTEMS GBA BSP
+ *
+ *  Copyright (c) 2004  Markku Puro <markku.puro@kopteri.net>
+ *
+ *  The license and distribution terms for this file may be
+ *  found in found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#include <stdio.h>
+#include <bsp.h>
+#include <rtems/bspIo.h>
+#include <rtems/libio.h>
+#include <rtems/libcsupport.h>
+#include <gba.h>
+#include <conio.h>
+
+#define BSP_DEBUG  0
+
+/* Global Variables, Defined in 'linkcmds' */
+extern  void _end;
+extern  void _stack_size;
+extern  void _irq_max_vector;
+extern  void __heap_limit;
+extern  void __ro_start;
+extern  void __ro_end;
+extern  void __data_start;
+extern  void __data_end;
+extern  void __load_start_data;
+extern  void __load_stop_data;
+extern  void __ewram_start;
+extern  void __ewram_end;
+extern  void __load_start_ewram;
+extern  void __load_stop_ewram;
+extern  void __iwram_start;
+extern  void __iwram_end;
+extern  void __load_start_iwram;
+extern  void __load_stop_iwram;
+extern  void __bss_start;
+extern  void __bss_end;
+
+/**  The original BSP configuration table from the application. */
+extern rtems_configuration_table  Configuration;
+/** Our copy of BSP configuration table from the application. */
+rtems_configuration_table  BSP_Configuration;
+
+/* External Prototypes */
+extern void bsp_cleanup( void );
+extern void rtems_irq_mngt_init(void);
+extern void bsp_libc_init( void *, rtems_unsigned32, int );
+extern void bsp_postdriver_hook(void);
+
+
+/** Chip registers */
+volatile unsigned int *Regs = (unsigned int *)GBA_IO_REGS_ADDR;
+
+/**
+ *  Size of heap if it is 0 it will be dynamically defined by memory size,
+ *  otherwise the value should be changed by binary patch
+ */
+rtems_unsigned32   _heap_size = 0;
+
+/** Address of start of free memory - should be updated after creating new partitions or regions.*/
+rtems_unsigned32   rtemsFreeMemStart;
+
+/** CPU configuration table.    */
+rtems_cpu_table    Cpu_table;
+/** Program name - from main(). */
+char              *rtems_progname;
+
+
+/**
+ *  @brief BSP pretasking hook.
+ *
+ *  Called just before drivers are initialized.
+ *  Used to setup libc and install any BSP extensions.
+ *
+ *  NOTE: Must not use libc (to do io) from here, since drivers are not yet initialized.
+ *
+ *  @param  None
+ *  @return None
+ */
+void bsp_pretasking_hook(void)
+{
+
+  if (_heap_size == 0) {
+     _heap_size = (rtems_unsigned32)&__heap_limit - rtemsFreeMemStart;
+  }
+
+  bsp_libc_init((void *)rtemsFreeMemStart, _heap_size, 0);
+
+  rtemsFreeMemStart += _heap_size;
+
+
+#ifdef RTEMS_DEBUG
+  rtems_debug_enable(RTEMS_DEBUG_ALL_MASK);
+#endif /* RTEMS_DEBUG */
+
+#if BSP_DEBUG
+  /*  The following information is very useful when debugging. */
+  printk("[bsp_pretasking_hook]\n");
+  printk("_heap_size  = 0x%x\n", _heap_size);
+  printk("_stack_size = 0x%x\n", (rtems_unsigned32)&_stack_size);
+  printk("_irq_max_vector = 0x%x\n", (rtems_unsigned32)&_irq_max_vector);
+  printk("__ro_start      = 0x%x : __ro_end     = 0x%x\n", (rtems_unsigned32)&__ro_start, (rtems_unsigned32)&__ro_end);
+  printk("__ewram_start   = 0x%x : __ewram_end  = 0x%x\n", (rtems_unsigned32)&__ewram_start, (rtems_unsigned32)&__ewram_end);
+  printk("__data_start    = 0x%x : __data_end   = 0x%x\n", (rtems_unsigned32)&__data_start, (rtems_unsigned32)&__data_end);
+  printk("__bss_start     = 0x%x : __bss_end    = 0x%x\n", (rtems_unsigned32)&__bss_start,(rtems_unsigned32)&__bss_end);
+  printk("__iwram_start   = 0x%x : __iwram_end  = 0x%x\n", (rtems_unsigned32)&__iwram_start,(rtems_unsigned32)&__iwram_end);
+  printk("__load_start_iwram = 0x%x\n", (rtems_unsigned32)&__load_start_iwram);
+  printk("__load_stop_iwram  = 0x%x\n", (rtems_unsigned32)&__load_stop_iwram);
+  printk("__load_start_ewram = 0x%x\n", (rtems_unsigned32)&__load_start_ewram);
+  printk("__load_stop_ewram  = 0x%x\n", (rtems_unsigned32)&__load_stop_ewram);
+  printk("__load_start_data  = 0x%x\n", (rtems_unsigned32)&__load_start_data);
+  printk("__load_stop_data   = 0x%x\n", (rtems_unsigned32)&__load_stop_data);
+#endif
+}
+
+
+/**
+ *  @brief BSP Start
+ *
+ *  Called before main is invoked.
+ *
+ *  @param  None
+ *  @return None
+ */
+void bsp_start_default( void )
+{
+  /* set the value of start of free memory. */
+  rtemsFreeMemStart = (rtems_unsigned32)&_end;
+
+  /* If we don't have command line arguments set default program name. */
+  Cpu_table.pretasking_hook         = bsp_pretasking_hook; /* init libc, etc. */
+  Cpu_table.predriver_hook          = NULL;                /* use system's    */
+  Cpu_table.postdriver_hook         = bsp_postdriver_hook;
+  Cpu_table.idle_task               = NULL; /* don't override system IDLE task */
+  Cpu_table.do_zero_of_workspace    = TRUE;
+  Cpu_table.interrupt_stack_size    = 0;
+  Cpu_table.extra_mpci_receive_server_stack = 0;
+
+
+  /* Place RTEMS workspace at beginning of free memory. */
+  BSP_Configuration.work_space_start = (void *)rtemsFreeMemStart;
+  rtemsFreeMemStart += BSP_Configuration.work_space_size;
+
+  /* Init conio  */
+  gba_textmode(CO60);
+
+  /* Init rtems exceptions management  */
+  /*!!!!!GBA - Can't use exception vectors in GBA because they are already in GBA ROM BIOS */
+  /* rtems_exception_init_mngt(); */
+
+  /* Init rtems interrupt management */
+  rtems_irq_mngt_init();
+
+#if BSP_DEBUG
+  /* The following information is very useful when debugging. */
+  printk("[bsp_start]\n");
+  printk("rtemsFreeMemStart= 0x%x\n", rtemsFreeMemStart);
+  printk("__heap_limit     = 0x%x\n", (rtems_unsigned32)&__heap_limit);
+  printk("work_space_start = 0x%x size = 0x%x\n", BSP_Configuration.work_space_start,BSP_Configuration.work_space_size);
+  printk("maximum_extensions    = 0x%x\n", BSP_Configuration.maximum_extensions);
+  printk("microseconds_per_tick = 0x%x\n", BSP_Configuration.microseconds_per_tick);
+  printk("ticks_per_timeslice   = 0x%x\n", BSP_Configuration.ticks_per_timeslice);
+  printk("maximum_devices          = 0x%x\n", BSP_Configuration.maximum_devices);
+  printk("number_of_device_drivers = 0x%x\n", BSP_Configuration.number_of_device_drivers);
+  printk("Device_driver_table      = 0x%x\n", BSP_Configuration.Device_driver_table);
+#endif
+
+  /* Do we have enough memory */
+  if ((rtems_unsigned32)&__heap_limit < rtemsFreeMemStart) {
+     printk("\nFatal Error: Memory overflow[0x%x]!\n",rtemsFreeMemStart);
+     bsp_cleanup();
+  }
+
+}
+
+
+/**
+ *  @brief weak alias for bsp_start_default
+ *
+ *  By making this a weak alias for bsp_start_default, a brave soul
+ *  can override the actual bsp_start routine used.
+ */
+void bsp_start (void) __attribute__ ((weak, alias("bsp_start_default")));