/*-------------------------------------------------------------------------+
| Function: bsp_start
| Description: Called before main is invoked.
| Global Variables: None.
| Arguments: None.
| Returns: Nothing.
+--------------------------------------------------------------------------*/
void bsp_start_default( void )
{
int pci_init_retval;
/*
* We need to determine how much memory there is in the system.
*/
bsp_size_memory();
/*
* Calibrate variable for 1ms-loop (see timer.c)
*/
Calibrate_loop_1ms();
/*
* Init rtems interrupt management
*/
rtems_irq_mngt_init();
/*
* Init rtems exceptions management
*/
rtems_exception_init_mngt();
/*
* init PCI Bios interface...
*/
pci_init_retval = pci_initialize();
if (pci_init_retval != PCIB_ERR_SUCCESS) {
printk("PCI bus: could not initialize PCI BIOS interface\n");
}
bsp_ide_cmdline_init ();
} /* bsp_start */
/*
* 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.
*/
static void bsp_start_default( void )
{
PINSEL2 =0x0f814914;
BCFG0 = 0x1000ffef;
BCFG1 = 0x1000ffef;
MEMMAP = 0x2; //debug and excute outside chip
PLLCON = 1;
#if (Fpclk / (Fcclk / 4)) == 1
VPBDIV = 0;
#endif
#if (Fpclk / (Fcclk / 4)) == 2
VPBDIV = 2;
#endif
#if (Fpclk / (Fcclk / 4)) == 4
VPBDIV = 1;
#endif
#if (Fcco / Fcclk) == 2
PLLCFG = ((Fcclk / Fosc) - 1) | (0 << 5);
#endif
#if (Fcco / Fcclk) == 4
PLLCFG = ((Fcclk / Fosc) - 1) | (1 << 5);
#endif
#if (Fcco / Fcclk) == 8
PLLCFG = ((Fcclk / Fosc) - 1) | (2 << 5);
#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;
/* memory configure */
/* it is not needed in my formatter board */
//MAMCR = 0;
// MAMTIM = 3;
//MAMCR = 2;
UART0_Ini();
/*
* Init rtems exceptions management
*/
/* FIXME: Use shared start.S */
rtems_exception_init_mngt();
/*
* Init rtems interrupt management
*/
bsp_interrupt_initialize();
} /* bsp_start */
/*
*
* 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.
*
* RESTRICTIONS/LIMITATIONS:
* Since RTEMS is not configured, no RTEMS functions can be called.
*
*/
void bsp_start_default( void )
{
/* disable interrupts */
XSCALE_INT_ICMR = 0x0;
rtems_exception_init_mngt();
if (bsp_interrupt_initialize() != RTEMS_SUCCESSFUL) {
_CPU_Fatal_halt(0xe);
}
} /* bsp_start */
/*
* NAME: bsp_start_default - BSP initialization function
*
* This function is called before RTEMS is initialized
* 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 )
{
/* disable interrupts */
*EP7312_INTMR1 = 0;
*EP7312_INTMR2 = 0;
/*
* Init rtems exceptions management
*/
rtems_exception_init_mngt();
/*
* Init rtems interrupt management
*/
bsp_interrupt_initialize();
} /* bsp_start */
void bsp_start_default( void )
{
/* disable interrupts */
*EP7312_INTMR1 = 0;
*EP7312_INTMR2 = 0;
Cpu_table.pretasking_hook = bsp_pretasking_hook;
Cpu_table.postdriver_hook = bsp_postdriver_hook;
/* 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( "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( "_stack_size = 0x%x\n", _stack_size );*/
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
} /* bsp_start */
/*-------------------------------------------------------------------------+
| Function: bsp_start
| Description: Called before main is invoked.
| Global Variables: None.
| Arguments: None.
| Returns: Nothing.
+--------------------------------------------------------------------------*/
void bsp_start_default( void )
{
mmu_sect_map_t mem_map[] = {
{0x00000000, 0x0c000000, 1, MMU_CACHE_NONE}, /* Mirror of SDRAM for the vector handler*/
{0x0c000000, 0x0c000000, 8, MMU_CACHE_WTHROUGH}, /* SDRAM */
{0x14000000, 0x14000000, 1, MMU_CACHE_NONE}, /* Internals Regs - */
{0x15000000, 0x15000000, 1, MMU_CACHE_NONE}, /* Specials Internal Regs - */
};
/* 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;
/* do not override system IDLE task */
Cpu_table.do_zero_of_workspace = TRUE;
Cpu_table.interrupt_stack_size = 4096;
Cpu_table.extra_mpci_receive_server_stack = 0;
/*disable interrupts */
rINTMSK=0xffffffff;//unmasked by dirvers
/* Place RTEMS workspace at beginning of free memory. */
BSP_Configuration.work_space_start = (void *)&_bss_free_start;
free_mem_start = ((unsigned32)&_bss_free_start + BSP_Configuration.work_space_size);
free_mem_end = ((unsigned32)&_sdram_base + (unsigned32)&_sdram_size);
/*enable the MMU*/
mmu_init(mem_map, (sizeof(mem_map) / sizeof(mmu_sect_map_t)));
/*
* 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
} /* bsp_start */