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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 20:22:57 +00:00
parent 12d853d54b
commit f560d0ac22
4 changed files with 75 additions and 182 deletions
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7
c/src/lib/libbsp/arm/rtl22xx/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.
2008-05-14 Joel Sherrill <joel.sherrill@OARcorp.com>
* Makefile.am: Rework to avoid .rel files.

7
c/src/lib/libbsp/arm/rtl22xx/Makefile.am
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@@ -28,9 +28,10 @@ dist_project_lib_DATA += startup/linkcmds
include_HEADERS += ../../arm/shared/comm/uart.h
startup_SOURCES = ../../shared/bsplibc.c ../../shared/bsppost.c \
../../shared/bsppredriverhook.c \
startup/bspstart.c startup/bspclean.c ../../shared/bootcard.c \
../../shared/sbrk.c ../../shared/gnatinstallhandler.c
../../shared/bsppredriverhook.c ../../shared/bsppretaskinghook.c \
../shared/bspgetworkarea.c startup/bspstart.c startup/bspclean.c \
../../shared/bootcard.c ../../shared/sbrk.c \
../../shared/gnatinstallhandler.c
console_SOURCES = ../../shared/console.c
simple_abort_SOURCES = ../shared/abort/simple_abort.c
debugio_SOURCES = console/uart.c

2
c/src/lib/libbsp/arm/rtl22xx/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

241
c/src/lib/libbsp/arm/rtl22xx/startup/bspstart.c
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@@ -5,220 +5,103 @@
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
*
* http://www.rtems.com/license/LICENSE.
*
*
* $Id$
*/
*/
#include <bsp.h>
#include <rtems/libcsupport.h>
#include <rtems/libio.h>
#include <lpc22xx.h>
/*************************************************************/
/* Macros */
/*************************************************************/
/*************************************************************/
/* Data Structures */
/*************************************************************/
/*************************************************************/
/* Global Variables */
/*************************************************************/
/*FIX ME:we do not have SDRAM, but can I define mutiple SRAM?*/
extern void *_flash_size;
extern void *_flash_base;
extern void *_sdram_size;
extern void *_sdram_base;
extern void *_bss_free_start;
extern void *_bss_start_;
extern void *_bss_end_;
unsigned long free_mem_start;
unsigned long free_mem_end;
/*************************************************************/
/* Function prototypes */
/*************************************************************/
/*
* Function prototypes
*/
extern void rtems_irq_mngt_init(void);
void bsp_libc_init( void *, uint32_t, int );
extern void UART0_Ini(void);
extern void printi(unsigned long);
/**************************************************************************/
/* */
/* NAME: bps_pretasking_hook - Function to setup system before startup */
/* */
/* DESCRIPTION: */
/* This function is called before drivers are initialized and used */
/* to setup libc and BSP extensions. It configures non cacheable */
/* SDRAM, SRAM, AIM, and ADM regions and sets up the CPU's memory */
/* protection unit. */
/* */
/* GLOBALS USED: */
/* free_mem_start */
/* free_mem_end */
/* */
/* RESTRICTIONS/LIMITATIONS: */
/* Since this function is setting up libc, it cannot use and libc */
/* functions. */
/* */
/**************************************************************************/
void bsp_pretasking_hook(void)
{
uint32_t heap_start;
uint32_t heap_size;
/*
* Set up the heap. It uses all free SDRAM except that reserved
* for non-cached uses.
*/
heap_start = free_mem_start;
/* heap_size = (free_mem_end - heap_start - MEM_NOCACHE_SIZE); */
/*the board seems to have only 512K memory, we use 256K as heap, 256K to
store the .text*/
heap_size = 0x40000;
bsp_libc_init((void *)heap_start, heap_size, 0);
} /* bsp_pretasking_hook */
/**************************************************************************/
/* */
/* NAME: bsp_start_default - BSP initialization function */
/* */
/* DESCRIPTION: */
/* This function is called before RTEMS is initialized and used */
/* adjust the kernel's configuration. */
/* */
/* This function also configures the CPU's memory protection unit. */
/* */
/* GLOBALS USED: */
/* Configuration */
/* free_mem_start */
/* free_mem_end */
/* free_mem_nocache_start */
/* _bss_free_start */
/* mpu_region_tbl */
/* */
/* */
/* */
/* */
/* RESTRICTIONS/LIMITATIONS: */
/* Since RTEMS is not configured, no RTEMS functions can be called. */
/* */
/**************************************************************************/
/*
* bsp_start_default - BSP initialization function
*
* This function is called before RTEMS is initialized and used
* adjust the kernel's configuration.
*
* This function also configures the CPU's memory protection unit.
*
* RESTRICTIONS/LIMITATIONS:
* Since RTEMS is not configured, no RTEMS functions can be called.
*
*/
void bsp_start_default( void )
{
PINSEL2 =0x0f814914;
BCFG0 = 0x1000ffef;
BCFG1 = 0x1000ffef;
PINSEL2 =0x0f814914;
BCFG0 = 0x1000ffef;
BCFG1 = 0x1000ffef;
MEMMAP = 0x2; //debug and excute outside chip
MEMMAP = 0x2; //debug and excute outside chip
PLLCON = 1;
#if (Fpclk / (Fcclk / 4)) == 1
PLLCON = 1;
#if (Fpclk / (Fcclk / 4)) == 1
VPBDIV = 0;
#endif
#if (Fpclk / (Fcclk / 4)) == 2
#endif
#if (Fpclk / (Fcclk / 4)) == 2
VPBDIV = 2;
#endif
#if (Fpclk / (Fcclk / 4)) == 4
#endif
#if (Fpclk / (Fcclk / 4)) == 4
VPBDIV = 1;
#endif
#endif
#if (Fcco / Fcclk) == 2
#if (Fcco / Fcclk) == 2
PLLCFG = ((Fcclk / Fosc) - 1) | (0 << 5);
#endif
#if (Fcco / Fcclk) == 4
#endif
#if (Fcco / Fcclk) == 4
PLLCFG = ((Fcclk / Fosc) - 1) | (1 << 5);
#endif
#if (Fcco / Fcclk) == 8
#endif
#if (Fcco / Fcclk) == 8
PLLCFG = ((Fcclk / Fosc) - 1) | (2 << 5);
#endif
#if (Fcco / Fcclk) == 16
#endif
#if (Fcco / Fcclk) == 16
PLLCFG = ((Fcclk / Fosc) - 1) | (3 << 5);
#endif
PLLFEED = 0xaa;
PLLFEED = 0x55;
while((PLLSTAT & (1 << 10)) == 0);
PLLCON = 3;
PLLFEED = 0xaa;
PLLFEED = 0x55;
#endif
PLLFEED = 0xaa;
PLLFEED = 0x55;
while((PLLSTAT & (1 << 10)) == 0);
PLLCON = 3;
PLLFEED = 0xaa;
PLLFEED = 0x55;
/* memory configure */
/* it is not needed in my formatter board */
//MAMCR = 0;
// MAMTIM = 3;
//MAMCR = 2;
/* memory configure */
/* it is not needed in my formatter board */
//MAMCR = 0;
// MAMTIM = 3;
//MAMCR = 2;
/* init VIC */
VICIntEnClr = 0xffffffff;
VICVectAddr = 0;
VICIntSelect = 0;
/* init VIC */
VICIntEnClr = 0xffffffff;
VICVectAddr = 0;
VICIntSelect = 0;
/* disable interrupts */
/* Setup interrupt controller.*/
VICProtection = 0;
/* disable interrupts */
/* Setup interrupt controller.*/
VICProtection = 0;
/* Place RTEMS workspace at beginning of free memory. */
Configuration.work_space_start = (void *)&_bss_free_start;
UART0_Ini();
free_mem_start = ((uint32_t)&_bss_free_start +
rtems_configuration_get_work_space_size());
/*
* Init rtems exceptions management
*/
rtems_exception_init_mngt();
free_mem_end = ((uint32_t)&_sdram_base + (uint32_t)&_sdram_size);
UART0_Ini();
#if 0
printk(" bsp_start_default 0x%08x\n", (int)&bsp_start_defalt);
printk(" _bss_free_start 0x%08x\n", (int)&_bss_free_start);
printk(" free_mem_start 0x%08x\n", (int)free_mem_start);
printk(" _sdram_base 0x%08x\n", (int)&_sdram_base);
printk(" _sdram_size 0x%08x\n", (int)&_sdram_size);
printk(" free_mem_end 0x%08x\n", (int)free_mem_end);
#endif
/*
* 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( "_stack_size = 0x%x\n", _stack_size );*/
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 interrupt management
*/
rtems_irq_mngt_init();
} /* bsp_start */
/**
* Reset the system.
*
* This functions enables the watchdog and waits for it to
* fire, thus resetting the system.
*/
/**
* Reset the system.
*