NXP MPC55XX and MPC56XX

NXP MPC55XX and MPC56XX Board Support Package. More...

Modules
	Configuration files
	Deserial Serial Peripheral Interface (DSPI)

Files
file	clock-config.c
	Clock driver configuration.
file	bsp.h
	Global BSP definitions.
file	irq.h
	IRQ.
file	mpc55xx-config.h
	Low-level configuration.
file	smsc9218i.h
	SMSC - LAN9218i.
file	edma.h
	Enhanced Direct Memory Access (eDMA).
file	emios.h
	Enhanced Modular Input Output Subsystem (eMIOS).
file	mpc55xx.h
	Documentation for this file.
file	reg-defs.h
	Register definitions.
file	regs-edma.h
file	regs-mmu.h
file	regs.h
	Register definitions for the MPC55xx and MPC56xx microcontroller family.
file	siu.h
	System Integration Unit Access (SIU).
file	watchdog.h
	Header file for the watchdog timer.
file	bspgetworkarea.c
	This source file contains the powerpc/mpc55xxevb implementation of _Memory_Get().
file	bspreset.c
	BSP reset.
file	bspstart.c
	BSP startup code.
file	edma.c
	Enhanced Direct Memory Access (eDMA).
file	emios.c
	Enhanced Modular Input Output Subsystem (eMIOS).
file	flash_support.c
	MPC55XX flash memory support.
file	get-system-clock.c
	System clock calculation.
file	idle-thread.c
	bsp_idle_thread() implementation.
file	irq.c
	Source file for MPC55XX interrupt support.
file	sd-card-init.c
	SD Card initialization code.
file	siu.c
	System Integration Unit Access (SIU).
file	start-clock.c
	Clock and FMPLL initialization code.
file	start-config-clock.c
	Clock and FMPLL configuration.
file	start-config-ebi-cs-cal.c
	EBI calibration chip-select configuration.
file	start-config-ebi-cs.c
	EBI chip-select configuration.
file	start-config-ebi.c
	EBI configuration.
file	start-config-mmu-early.c
	MMU early configuration.
file	start-config-mmu.c
	MMU configuration.
file	start-config-siu-pcr.c
	SIU PCR configuration.
file	start-early.c
	Early initialization code.
file	start-prologue.c
	Start prologue.
file	start-watchdog.c
	Watchdog initialization code.

Macros
#define	BSP_FEATURE_IRQ_EXTENSION
#define	MPC55XX_PERIPHERAL_CLOCK    (MPC55XX_SYSTEM_CLOCK / MPC55XX_SYSTEM_CLOCK_DIVIDER)
#define	BSP_Convert_decrementer(_value)    (((unsigned long long) (_value)) / ((unsigned long long)bsp_clicks_per_usec))
	Convert Decrementer ticks to microseconds.
#define	RTEMS_BSP_NETWORK_DRIVER_ATTACH   smsc9218i_attach_detach
#define	RTEMS_BSP_NETWORK_DRIVER_NAME   "eth0"
#define	BSP_IDLE_TASK_BODY   bsp_idle_thread
#define	BSP_DSRAM_SECTION   __attribute__((section(".bsp_dsram")))
#define	BSP_SYSRAM_SECTION   __attribute__((section(".bsp_sysram")))

Functions
rtems_status_code	mpc55xx_sd_card_init (bool mount)
int	smsc9218i_attach_detach (struct rtems_bsdnet_ifconfig *config, int attaching)
rtems_status_code	bsp_register_i2c (void)
void	bsp_restart (void *addr)
void *	bsp_idle_thread (uintptr_t arg)
	Optimized idle task.

Variables
unsigned int	bsp_clock_speed
	System clock frequency.
uint32_t	bsp_clicks_per_usec
	Time base clicks per micro second.

Detailed Description

NXP MPC55XX and MPC56XX Board Support Package.

Function Documentation

bsp_idle_thread()

void * bsp_idle_thread

(

uintptr_t

ignored

)

Optimized idle task.

This BSP provides its own IDLE thread to override the RTEMS one.

This idle task sets the power mode to idle. This causes the processor clock to be stopped, while on-chip peripherals remain active. Any enabled interrupt from a peripheral or an external interrupt source will cause the processor to resume execution.

To enable the idle task use the following in the system configuration:

#include <bsp.h>
 
#define CONFIGURE_INIT
 
#define CONFIGURE_IDLE_TASK_BODY bsp_idle_thread
 
#include <confdefs.h>

This BSP provides its own IDLE thread to override the RTEMS one.

Optimized idle task.

The MSR[POW] bit is set to put the CPU into the low power mode defined in HID0. HID0 is set during starup in start.S.

This BSP provides its own IDLE thread to override the RTEMS one.

This idle task sets the power mode to idle. This causes the processor clock to be stopped, while on-chip peripherals remain active. Any enabled interrupt from a peripheral or an external interrupt source will cause the processor to resume execution.

To enable the idle task use the following in the system configuration:

#include <bsp.h>
 
#define CONFIGURE_INIT
 
#define CONFIGURE_IDLE_TASK_BODY bsp_idle_thread
 
#include <confdefs.h>

Optimized idle task.

The MSR[POW] bit is set to put the CPU into the low power mode defined in HID0. HID0 is set during starup in start.S.