2005-03-11 Philippe Simons <loki_666@fastmail.fm>

	* acinclude.m4: Added gp32 BSP.
	* gp32/.cvsignore, gp32/Makefile.am, gp32/README, gp32/bsp_specs,
	gp32/configure.ac, gp32/console/.cvsignore, gp32/console/conio.c,
	gp32/console/console.c, gp32/console/defaultfont.c,
	gp32/include/.cvsignore, gp32/include/bsp.h, gp32/include/conio.h,
	gp32/include/tm27.h, gp32/start/.cvsignore, gp32/start/start.S,
	gp32/startup/.cvsignore, gp32/startup/bspstart.c,
	gp32/startup/exit.c, gp32/startup/linkcmds, gp32/startup/memmap.c: New files.

1 files changed, 195 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/arm/gp32/startup/bspstart.c b/c/src/lib/libbsp/arm/gp32/startup/bspstart.c
new file mode 100644
index 0000000000..48f04fa75b
--- /dev/null
+++ b/c/src/lib/libbsp/arm/gp32/startup/bspstart.c
@@ -0,0 +1,195 @@
+/*-------------------------------------------------------------------------+
+| This file contains the ARM 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. 
++--------------------------------------------------------------------------+
+|
+| Copyright (c) 2000 Canon Research Centre France SA.
+| Emmanuel Raguet, mailto:raguet@crf.canon.fr
+|
+|   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.
+|
++--------------------------------------------------------------------------*/
+
+
+#include <bsp.h>
+#include <rtems/libcsupport.h>
+#include <rtems/libio.h>
+#include <s3c2400.h>
+
+/*-------------------------------------------------------------------------+
+| Global Variables
++--------------------------------------------------------------------------*/
+
+extern void            *_sdram_size;
+extern void            *_sdram_base;
+extern void            *_bss_free_start;
+
+unsigned long           free_mem_start;
+unsigned long           free_mem_end;
+
+/* The original BSP configuration 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;                     /* CPU configuration table.    */
+char            *rtems_progname = "RTEMS";               /* Program name - from main(). */
+
+/*-------------------------------------------------------------------------+
+| External Prototypes
++--------------------------------------------------------------------------*/
+extern void rtems_irq_mngt_init(void);
+void bsp_libc_init( void *, uint32_t, int );
+void bsp_postdriver_hook(void);
+
+/*-------------------------------------------------------------------------+
+|         Function: bsp_pretasking_hook
+|      Description: 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.
+| Global Variables: None.
+|        Arguments: None.
+|          Returns: Nothing. 
++--------------------------------------------------------------------------*/
+void bsp_pretasking_hook(void)
+{
+    uint32_t heap_start;
+    uint32_t heap_size;
+
+    /* 
+     * Set up the heap. 
+     */
+    heap_start =  free_mem_start;
+    heap_size = free_mem_end - free_mem_start;
+
+    /* call rtems lib init - malloc stuff */
+    bsp_libc_init((void *)heap_start, heap_size, 0);
+
+#ifdef RTEMS_DEBUG
+
+    rtems_debug_enable(RTEMS_DEBUG_ALL_MASK);
+
+#endif /* RTEMS_DEBUG */
+
+} /* bsp_pretasking_hook */
+ 
+/*-------------------------------------------------------------------------+
+|         Function: bsp_start
+|      Description: Called before main is invoked.
+| Global Variables: None.
+|        Arguments: None.
+|          Returns: Nothing. 
++--------------------------------------------------------------------------*/
+void bsp_start_default( void )
+{
+    uint32_t cr;
+    /* 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;
+                                          
+    Cpu_table.do_zero_of_workspace = TRUE;
+    Cpu_table.interrupt_stack_size = 4096;
+    Cpu_table.extra_mpci_receive_server_stack = 0;
+
+    /* stop all timers */
+    rTCON=0x0;
+
+    /* disable interrupts */
+    rINTMOD=0x0;
+    rINTMSK=BIT_ALLMSK; /* unmasked by drivers */
+    rSRCPND=BIT_ALLMSK;
+    rINTMSK=BIT_ALLMSK;
+    rINTPND=BIT_ALLMSK;
+
+    /* setup clocks 133/66/33) */
+    rCLKDIVN=3;
+    rMPLLCON=((M_MDIV<<12)+(M_PDIV<<4)+M_SDIV);
+
+    /* set prescaler for timers 2,3,4 to 16(15+1) */
+    cr=rTCFG0 & 0xFFFF00FF;
+    rTCFG0=(cr | (15<<8));
+
+    /* set prescaler for timers 0,1 to 1(0+1) */
+    cr=rTCFG0 & 0xFFFFFF00;
+    rTCFG0=(cr | (0<<0));
+
+    /* Place RTEMS workspace at beginning of free memory. */
+    BSP_Configuration.work_space_start = (void *)&_bss_free_start;
+
+    free_mem_start = ((uint32_t)&_bss_free_start + BSP_Configuration.work_space_size);
+    
+    free_mem_end = ((uint32_t)&_sdram_base + (uint32_t)&_sdram_size);
+
+    /*
+     * Init rtems exceptions management
+     */
+    rtems_exception_init_mngt();
+
+    /*
+     * Init rtems interrupt management
+     */
+    rtems_irq_mngt_init();
+    /*
+     *  The following information is very useful when debugging.
+     */
+
+#if 0
+    printk( "work_space_size = 0x%x\n", 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 );
+    
+    printk( "_heap_size = 0x%x\n", _heap_size );
+    /*  printk( "_stack_size = 0x%x\n", _stack_size );*/
+    printk( "rtemsFreeMemStart = 0x%x\n", rtemsFreeMemStart );
+    printk( "work_space_start = 0x%x\n", BSP_Configuration.work_space_start );
+    printk( "work_space_size = 0x%x\n", BSP_Configuration.work_space_size );
+#endif
+
+}
+
+/*
+ *  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")));
+
+void bsp_reset(void)
+{
+    rtems_interrupt_level level;
+    _CPU_ISR_Disable(level);
+    printk("bsp_reset.....\n");
+    while(1);
+}
+
+void LCD_BREAK()
+{ 
+    int x,y; 
+    unsigned short color=0; 
+    volatile unsigned char* framebuffer = (unsigned char*) 0x0C7B4000; 
+    while(1) { 
+        for(y = 0; y < 240; y++) {
+            for(x = 0; x < 320; x++) {
+                *(framebuffer + (239 - y) + (240 * x)) = color; 
+            }
+        }
+        color++; 
+    } 
+}
+