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2008-09-14 Joel Sherrill <joel.sherrill@oarcorp.com>

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* Makefile.am, configure.ac, startup/bspstart.c: Split out
	bsp_get_work_area() into its own file and user BSP Framework to
	perform more initialization. Use same shared implementation as
	edb7312 and csb336.
This commit is contained in:
Joel Sherrill
2008-09-14 19:54:15 +00:00
parent b9cb6cdf74
commit cdeed30434
4 changed files with 109 additions and 163 deletions
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7
c/src/lib/libbsp/arm/gp32/ChangeLog
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@@ -1,3 +1,10 @@
2008-09-14 Joel Sherrill <joel.sherrill@oarcorp.com>
* Makefile.am, configure.ac, startup/bspstart.c: Split out
bsp_get_work_area() into its own file and user BSP Framework to
perform more initialization. Use same shared implementation as
edb7312 and csb336.
2008-08-21 Joel Sherrill <joel.sherrill@oarcorp.com>
* Makefile.am: No BSP should use exit.c as a file name. exit() is POSIX

6
c/src/lib/libbsp/arm/gp32/Makefile.am
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@@ -27,9 +27,9 @@ project_lib_DATA = start.$(OBJEXT)
dist_project_lib_DATA += startup/linkcmds
startup_SOURCES = ../../shared/bsplibc.c ../../shared/bsppost.c \
../../shared/bsppredriverhook.c \
startup/bspstart.c startup/bspclean.c startup/memmap.c \
../../shared/bootcard.c ../../shared/sbrk.c \
../../shared/bsppredriverhook.c ../shared/bspgetworkarea.c \
../../shared/bsppretaskinghook.c startup/bspstart.c startup/bspclean.c \
startup/memmap.c ../../shared/bootcard.c ../../shared/sbrk.c \
../../shared/gnatinstallhandler.c
console_SOURCES = console/uart.c ../../shared/console.c
abort_SOURCES = ../shared/abort/abort.c

2
c/src/lib/libbsp/arm/gp32/configure.ac
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@@ -18,6 +18,8 @@ RTEMS_PROG_CCAS
RTEMS_CHECK_NETWORKING
AM_CONDITIONAL(HAS_NETWORKING,test "$HAS_NETWORKING" = "yes")
RTEMS_BSP_BOOTCARD_HANDLES_RAM_ALLOCATION
# Explicitly list all Makefiles here
AC_CONFIG_FILES([Makefile])
AC_OUTPUT

257
c/src/lib/libbsp/arm/gp32/startup/bspstart.c
View File

@@ -1,17 +1,17 @@
/*-------------------------------------------------------------------------+
| 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.
|
+--------------------------------------------------------------------------*/
/*
* 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>
@@ -20,49 +20,14 @@
#include <rtems/bspIo.h>
#include <s3c24xx.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;
/*-------------------------------------------------------------------------+
| External Prototypes
+--------------------------------------------------------------------------*/
/*
* External Prototypes
*/
extern void rtems_irq_mngt_init(void);
void bsp_libc_init( void *, uint32_t, int );
/*-------------------------------------------------------------------------+
| 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);
} /* bsp_pretasking_hook */
/*
* BSP specific Idle task
*/
Thread bsp_idle_task(uint32_t ignored)
{
while(1) {
@@ -70,95 +35,67 @@ Thread bsp_idle_task(uint32_t ignored)
}
}
/*-------------------------------------------------------------------------+
| Function: bsp_start
| Description: Called before main is invoked.
| Global Variables: None.
| Arguments: None.
| Returns: Nothing.
+--------------------------------------------------------------------------*/
/*
* BSP Specific Initialization in C
*/
void bsp_start_default( void )
{
uint32_t cr;
uint32_t pend,last;
uint32_t REFCNT;
int i;
uint32_t cr;
uint32_t pend,last;
uint32_t REFCNT;
int i;
/* stop RTC */
#ifdef CPU_S3C2400
rTICINT=0x0;
#else
rTICNT=0x0;
#endif
/* stop watchdog,ADC and timers */
rWTCON=0x0;
rTCON=0x0;
rADCCON=0x0;
/* stop RTC */
#ifdef CPU_S3C2400
rTICINT = 0x0;
#else
rTICNT = 0x0;
#endif
/* stop watchdog,ADC and timers */
rWTCON = 0x0;
rTCON = 0x0;
rADCCON = 0x0;
/* disable interrupts */
rINTMOD=0x0;
rINTMSK=BIT_ALLMSK; /* unmasked by drivers */
/* disable interrupts */
rINTMOD = 0x0;
rINTMSK = BIT_ALLMSK; /* unmasked by drivers */
last=0;
for(i=0; i<4; i++) {
pend=rSRCPND;
if(pend == 0 || pend == last)
break;
rSRCPND=pend;
rINTPND=pend;
last=pend;
}
last = 0;
for(i=0; i<4; i++) {
pend = rSRCPND;
if(pend == 0 || pend == last)
break;
rSRCPND = pend;
rINTPND = pend;
last = pend;
}
/* setup clocks */
rCLKDIVN=M_CLKDIVN;
rMPLLCON=((M_MDIV<<12)+(M_PDIV<<4)+M_SDIV);
/* setup rREFRESH */
REFCNT=2048+1-(15.6*get_HCLK()/1000000); /* period=15.6 us, HCLK=66Mhz, (2048+1-15.6*66) */
rREFRESH=((REFEN<<23)+(TREFMD<<22)+(Trp<<20)+(Trc<<18)+(Tchr<<16)+REFCNT);
/* setup clocks */
rCLKDIVN = M_CLKDIVN;
rMPLLCON = ((M_MDIV<<12)+(M_PDIV<<4)+M_SDIV);
/* setup rREFRESH
* period = 15.6 us, HCLK=66Mhz, (2048+1-15.6*66)
*/
REFCNT = 2048+1-(15.6*get_HCLK()/1000000);
rREFRESH = ((REFEN<<23)+(TREFMD<<22)+(Trp<<20)+(Trc<<18)+(Tchr<<16)+REFCNT);
/* set prescaler for timers 2,3,4 to 16(15+1) */
cr=rTCFG0 & 0xFFFF00FF;
rTCFG0=(cr | (15<<8));
/* 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));
/* 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. */
Configuration.work_space_start = (void *)&_bss_free_start;
free_mem_start = ((uint32_t)&_bss_free_start + rtems_configuration_get_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",
rtems_configuration_get_work_space_size() );
printk( "microseconds_per_tick = 0x%x\n",
rtems_configuration_get_microseconds_per_tick() );
printk( "ticks_per_timeslice = 0x%x\n",
rtems_configuration_get_ticks_per_timeslice() );
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", Configuration.work_space_start );
printk( "work_space_size = 0x%x\n", rtems_configuration_get_work_space_size() );
#endif
/*
* Init rtems exceptions management
*/
rtems_exception_init_mngt();
/*
* Init rtems interrupt management
*/
rtems_irq_mngt_init();
}
/*
@@ -170,30 +107,30 @@ void bsp_start (void) __attribute__ ((weak, alias("bsp_start_default")));
void bsp_reset(void)
{
rtems_interrupt_level level;
rtems_interrupt_disable(level);
printk("bsp_reset.....\n");
/* disable mmu, invalide i-cache and call swi #4 */
asm volatile(""
"mrc p15,0,r0,c1,c0,0 \n"
"bic r0,r0,#1 \n"
"mcr p15,0,r0,c1,c0,0 \n"
"nop \n"
"nop \n"
"nop \n"
"nop \n"
"nop \n"
"mov r0,#0 \n"
"MCR p15,0,r0,c7,c5,0 \n"
"nop \n"
"nop \n"
"nop \n"
"nop \n"
"nop \n"
"swi #4 "
:
:
: "r0"
);
/* we should be back in bios now */
rtems_interrupt_level level;
rtems_interrupt_disable(level);
printk("bsp_reset.....\n");
/* disable mmu, invalide i-cache and call swi #4 */
asm volatile(""
"mrc p15,0,r0,c1,c0,0 \n"
"bic r0,r0,#1 \n"
"mcr p15,0,r0,c1,c0,0 \n"
"nop \n"
"nop \n"
"nop \n"
"nop \n"
"nop \n"
"mov r0,#0 \n"
"MCR p15,0,r0,c7,c5,0 \n"
"nop \n"
"nop \n"
"nop \n"
"nop \n"
"nop \n"
"swi #4 "
:
:
: "r0"
);
/* we should be back in bios now */
}