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.

5 files changed, 541 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/arm/gp32/startup/.cvsignore b/c/src/lib/libbsp/arm/gp32/startup/.cvsignore
new file mode 100644
index 0000000000..d29e5050f5
--- /dev/null
+++ b/c/src/lib/libbsp/arm/gp32/startup/.cvsignore
@@ -0,0 +1,14 @@
+Makefile
+Makefile.in
+aclocal.m4
+autom4te.cache
+config.cache
+config.guess
+config.log
+config.status
+config.sub
+configure
+depcomp
+install-sh
+missing
+mkinstalldirs
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++; 
+    } 
+}
+
diff --git a/c/src/lib/libbsp/arm/gp32/startup/exit.c b/c/src/lib/libbsp/arm/gp32/startup/exit.c
new file mode 100644
index 0000000000..3683f06803
--- /dev/null
+++ b/c/src/lib/libbsp/arm/gp32/startup/exit.c
@@ -0,0 +1,29 @@
+/*-------------------------------------------------------------------------+
+| exit.c - ARM BSP 
++--------------------------------------------------------------------------+
+| Routines to shutdown and reboot the BSP.
++--------------------------------------------------------------------------+
+|
+| 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 <stdio.h>
+#include <bsp.h>
+#include <rtems/bspIo.h>
+#include <rtems/libio.h>
+
+void bsp_reset();
+
+void bsp_cleanup(void)
+{
+  bsp_reset();
+}
+
+
diff --git a/c/src/lib/libbsp/arm/gp32/startup/linkcmds b/c/src/lib/libbsp/arm/gp32/startup/linkcmds
new file mode 100644
index 0000000000..098fa28ddd
--- /dev/null
+++ b/c/src/lib/libbsp/arm/gp32/startup/linkcmds
@@ -0,0 +1,275 @@
+/*
+ *  GP32 Linker script
+ *
+ *  Written by Philippe Simons <loki_666@fastmail.fm>
+ *
+ *  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.
+ *
+ *  $Id$
+ */
+OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm","elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+/* SEARCH_DIR(/usr/local/rtems-arm-dev-tools/arm-rtems/lib); */
+
+
+MEMORY {
+	sdram : ORIGIN = 0xc000000, LENGTH = 7M
+}
+
+/*
+ * Declare some sizes.
+ */
+
+/* The base for SDRAM is set to umon's APPRAMBASE */
+_sdram_base = DEFINED(_sdram_base) ? _sdram_base : 0xc000000;
+_sdram_size = DEFINED(_sdram_size) ? _sdram_size : 7M;
+
+
+_irq_stack_size = DEFINED(_irq_stack_size) ? _irq_stack_size : 0x1000;
+_fiq_stack_size = DEFINED(_fiq_stack_size) ? _fiq_stack_size : 0x400;
+_abt_stack_size = DEFINED(_abt_stack_size) ? _abt_stack_size : 0x100;
+_svc_stack_size = DEFINED(_svc_stack_size) ? _svc_stack_size : 0x1000;
+
+
+
+/* Do we need any of these for elf?
+   __DYNAMIC = 0;    */
+
+SECTIONS
+{
+  .base :
+  {
+    arm_exception_table = .;    
+
+    arm_reset_vect    = .;     /* 0x00 */
+    . += 4;
+
+    arm_undef_vect    = .;     /* 0x04 */
+    . += 4;
+
+    arm_swi_vect      = .;     /* 0x08 */
+    . += 4;
+
+    arm_iabrt_vect    = .;     /* 0x0c */
+    . += 4;
+
+    arm_dabrt_vect    = .;     /* 0x10 */
+    . += 4;
+
+    /* no vector here */
+    . += 4;
+
+    arm_irq_vect      = .;     /* 0x18 */
+    . += 4;
+
+    arm_fiq_vect      = .;     /* 0x1c */
+    . += 4;
+			      /* FIXME: */
+
+    rtems_vector_table = .;
+    . += (8 * 4);                     /* 8 ARM interrupts */
+	
+    bsp_vector_table = .;
+    . += (32 * 4);                    /* 32 S3C2400 interrupts */
+
+    . = ALIGN (0x100);
+
+
+  } > sdram
+
+
+  .text      :
+  {
+    _axf_text_start = . ;
+    *(EXCLUDE_FILE (*text.iwram*) .text)
+    *(.text.*)
+    *(.stub)
+
+    /*
+     * Special FreeBSD sysctl sections.
+     */
+    . = ALIGN (16);
+    __start_set_sysctl_set = .;
+    *(set_sysctl_*);
+    __stop_set_sysctl_set = ABSOLUTE(.);
+    *(set_domain_*);
+    *(set_pseudo_*);
+
+    /* .gnu.warning sections are handled specially by elf32.em.  */
+    *(.gnu.warning)
+    *(.gnu.linkonce.t*)
+    *(.glue_7)
+    *(.glue_7t)
+
+    . = ALIGN(4);  /* REQUIRED. LD is flaky without it. */
+  } > sdram
+
+  __text_end = . ;
+
+  .init          : 
+  { 
+    *(.init)
+  } > sdram   /*=0*/
+
+  .jcr : 
+  { 
+    *(.jcr) 
+  } > sdram
+
+
+  .fini      :
+  {
+    *(.fini)
+  } > sdram  /*=0*/
+
+  .rodata :
+  {
+    *(.rodata)
+    *all.rodata*(*)
+    *(.roda)
+    *(.rodata.*)
+    *(.gnu.linkonce.r*)
+    SORT(CONSTRUCTORS)
+    . = ALIGN(4);   /* REQUIRED. LD is flaky without it. */
+  } > sdram = 0xff
+
+  .ctors :
+  {
+    /* gcc uses crtbegin.o to find the start of the constructors, so
+       we make sure it is first.  Because this is a wildcard, it
+       doesn't matter if the user does not actually link against
+       crtbegin.o; the linker won't look for a file to match a
+       wildcard.  The wildcard also means that it doesn't matter which
+       directory crtbegin.o is in.  */
+    KEEP (*crtbegin.o(.ctors))
+    KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
+    KEEP (*(SORT(.ctors.*)))
+    KEEP (*(.ctors))
+    . = ALIGN(4);   /* REQUIRED. LD is flaky without it. */
+  } >sdram = 0
+
+  .dtors :
+  {
+    KEEP (*crtbegin.o(.dtors))
+    KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
+    KEEP (*(SORT(.dtors.*)))
+    KEEP (*(.dtors))
+    . = ALIGN(4);   /* REQUIRED. LD is flaky without it. */
+  } >sdram = 0
+
+
+  .eh_frame :
+  {
+    KEEP (*(.eh_frame))
+    . = ALIGN(4);   /* REQUIRED. LD is flaky without it. */
+  } >sdram = 0
+
+  .gcc_except_table :
+  {
+    *(.gcc_except_table)
+    . = ALIGN(4);   /* REQUIRED. LD is flaky without it. */
+  } >sdram = 0
+  _axf_ro_end = . ;
+
+  .data ALIGN(4) :
+  {
+    _axf_data_start = ABSOLUTE(.);
+    *(.data)
+    *(.data.*)
+    *(.gnu.linkonce.d*)
+    CONSTRUCTORS
+    . = ALIGN(4);  /* REQUIRED. LD is flaky without it. */
+  } >sdram = 0xff
+
+  __data_end  =  . ;
+
+  .bss ALIGN(4):
+  {
+	_axf_bss_start = ABSOLUTE(.);
+	_clear_start = .;
+	*(.bss)
+	*(.bss.*)
+	*(.gnu.linkonce.b.*)
+	*(COMMON)
+	. = ALIGN(64);
+	_clear_end = .;
+
+	. = ALIGN (256);
+	_abt_stack = .;
+	. += _abt_stack_size;
+
+	. = ALIGN (256);
+	_irq_stack = .;
+	. += _irq_stack_size;
+
+	. = ALIGN (256);
+	_fiq_stack = .;
+	. += _fiq_stack_size;
+
+	. = ALIGN (256);
+	_svc_stack = .;
+	. += _svc_stack_size;
+
+/* 
+ * Ideally, the MMU's translation table would be in SRAM. But we
+ * don't have any. If we don't use more regions than TLB entries (64),
+ * the lookup will only happen once for each region.
+ */
+	. = ALIGN (16 * 1024);
+	_ttbl_base = .;
+	. += (16 * 1024);
+
+	. = ALIGN (1024);
+	_bss_free_start = .;
+
+  } > sdram
+  _axf_bss_end = . ;
+
+  _end = . ;
+  __end__ = . ;
+  PROVIDE (end = _end);
+
+
+/* Debugging stuff follows? */
+
+  /* Stabs debugging sections.  */
+  .stab 0 : { *(.stab) } 
+  .stabstr 0 : { *(.stabstr) } 
+  .stab.excl 0 : { *(.stab.excl) } 
+  .stab.exclstr 0 : { *(.stab.exclstr) }
+  .stab.index 0 : { *(.stab.index) } 
+  .stab.indexstr 0 : { *(.stab.indexstr) } 
+  .comment 0 : { *(.comment) }
+  /* DWARF debug sections.
+     Symbols in the DWARF debugging sections are relative to the beginning
+     of the section so we begin them at 0.  */
+  /* DWARF 1 */
+  .debug          0 : { *(.debug) }
+  .line           0 : { *(.line) }
+  /* GNU DWARF 1 extensions */
+  .debug_srcinfo  0 : { *(.debug_srcinfo) }
+  .debug_sfnames  0 : { *(.debug_sfnames) }
+  /* DWARF 1.1 and DWARF 2 */
+  .debug_aranges  0 : { *(.debug_aranges) }
+  .debug_pubnames 0 : { *(.debug_pubnames) }
+  /* DWARF 2 */
+  .debug_info     0 : { *(.debug_info) }
+  .debug_abbrev   0 : { *(.debug_abbrev) }
+  .debug_line     0 : { *(.debug_line) }
+  .debug_frame    0 : { *(.debug_frame) }
+  .debug_str      0 : { *(.debug_str) } 
+  .debug_loc      0 : { *(.debug_loc) }
+  .debug_macinfo  0 : { *(.debug_macinfo) } 
+  /* SGI/MIPS DWARF 2 extensions */
+  .debug_weaknames 0 : { *(.debug_weaknames) }
+  .debug_funcnames 0 : { *(.debug_funcnames) }
+  .debug_typenames 0 : { *(.debug_typenames) }
+  .debug_varnames  0 : { *(.debug_varnames) } 
+  /*.stack 0x80000 : { _stack = .; *(.stack) }*/
+  /* These must appear regardless of  .  */
+}
+
diff --git a/c/src/lib/libbsp/arm/gp32/startup/memmap.c b/c/src/lib/libbsp/arm/gp32/startup/memmap.c
new file mode 100644
index 0000000000..50492c56b4
--- /dev/null
+++ b/c/src/lib/libbsp/arm/gp32/startup/memmap.c
@@ -0,0 +1,28 @@
+/*
+ *  GP32 Memory Map
+ *
+ *  Copyright (c) 2004 by Cogent Computer Systems
+ *  Written by Jay Monkman <jtm@lopingdog.com>
+ *
+ *  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 <rtems.h>
+#include <libcpu/mmu.h>
+
+/* Remember, the ARM920 has 64 TLBs. If you have more 1MB sections than
+ * that, you'll have TLB lookups, which could hurt performance.
+ */
+mmu_sect_map_t mem_map[] = {
+/*  <phys addr>  <virt addr> <size> <flags> */
+    {0x0c000000, 0x00000000,   1, MMU_CACHE_NONE},     /* SDRAM for vectors */
+    {0x0c000000, 0x0c000000,   7, MMU_CACHE_WTHROUGH}, /* SDRAM W cache */
+    {0x0c700000, 0x0c700000,   1, MMU_CACHE_NONE},     /* SDRAM W/O cache */
+    {0x14000000, 0x14000000,   16, MMU_CACHE_NONE},    /* Internals Regs - */
+    {0x15000000, 0x15000000,   16, MMU_CACHE_NONE},    /* Internal Regs - */
+    {0x00000000, 0x00000000,   0,    0}                /* The end */
+};