VxWorks BSP主要配置文件 config.h 和 Makefile 注解

相关内容可参考 VxWorks BSP和启动过程

config.h

/*

This file contains the configuration parameters for the CPU evaluation board.

*/

#ifndef INCconfigh

#define INCconfigh

/* BSP version/revision identification, before configAll.h */

#define BSP_VER_1_2 1

#define BSP_VER_1_1 1

#define BSP_VERSION "1.2" /* A Tornado 2.0 BSP */

#define BSP_REV "/3" /* 0 for first revision */

#include "configAll.h"        /* 这个文件定义了VxWorks所有的缺省设置 */

/*

* Define ONE of the following to specify the revision of the PPC405GP chip

* you are using. Undefine all others. sysModel() will return

* "Unknown processor" if the correct selection is not made.

*/

/*

* Default boot line

*/

/*

解释: 这一行对配置网络,连通Target Server及下载调试程序非常重要

DEFAULT_BOOT_LINE 的原意是为没有NVRAM的target设计的,这样用户就不需要在每次系统启动是手工输入这些参数了.

系统启动网络时xxxEndLoad()会解释这一行并按这一行的定义进行加载.

Emac(0,0) : 启动设备,可是是软盘,硬盘,PCMCIA卡等 其他的设备名称如:

fd为软盘,(0,0)表示第一个软驱,3.5寸盘.

dc则表示从DEC 21x4x 芯片启动,即系统有NVRAM存在,这种方式现在已不采用.

elpci表示启动设备为3COM EtherLink XL PCI网卡.

fei:Intel 82559 EtherExpress网卡.

ene: NE2000网卡

ELT: 3COM以太网卡

EEX: Intel网卡

ata: ATA/IDE 硬盘 ............

405GP: 主机名 

vXworks 从主机加载的VxWorks文件 

h=172.16.1.159   主机的IP地址    

e=172.16.254.52 目标机的IP地址,若网络启动Target Server时,这个IP必须和主机上Target Server配置的Target IP地址一致,且设置Back End选项为wdbrpc

u=xxx  用户名，pw=xxx  密码: 若通过网络加载调试时,主机的Ftp服务器和目标机的用户名和密码必须相同 

tn=vxTarget 目标机名称

*/

#define DEFAULT_BOOT_LINE 

        "Emac(0,0)405GP:vxWorks h=172.16.1.159 e=172.16.254.52 

                u=xxx pw=xxx tn=vxTarget"

/*

* 内存设置.

* 如果定义了LOCAL_MEM_AUTOSIZE则SDRAM的大小会在Boot时指定

*/

#undef LOCAL_MEM_AUTOSIZE                    /* 运行时内存大小 */

#define LOCAL_MEM_SIZE 0x02000000            /* 32MB 内存缺省 */

#define LOCAL_MEM_LOCAL_ADRS 0x00000000     /* 内存基地址为 0 */

#define USER_RESERVED_MEM 0                  /* see sysMemTop() */

/*

* Define SDRAM_ECC_ENABLE to enable ECC if an ECC SDRAM DIMM is detected

* during SDRAM auto-configuration. If not defined, ECC will not be enabled

* if an ECC SDRAM DIMM is detected, and the DIMM will be used as a normal DIMM.

*/

#undef SDRAM_ECC_ENABLE

/* 解释: 这里主要设置系统的内存分配定义,若分配不当,则系统不能正常加载和运行.

ROM_TEXT_ADRS, ROM_SIZE, RAM_HIGH_ADRS, 和RAM_LOW_ADRS 在config.h和Makefile文件中都要定义,且必须要保持一致,这些地址的定义一定要参照VxWorks 加载执行过程,硬件手册,MMU和VxWorks的大小进行.主要原则是保证VxWorks image 在ROM和RAM中都要有一定的运行空间且高效运行,可参见 VxWorks BSP和启动过程.

*/

#define ROM_BASE_ADRS 0xfff80000                  /* ROM的基地址 */

#define ROM_TEXT_ADRS (ROM_BASE_ADRS + 0x100)    /* 程序指针和堆栈指针 */

#define ROM_WARM_ADRS (ROM_TEXT_ADRS+0x0004)     /* 热启动入口地址 */

#define ROM_SIZE 0x0007f000                       /* ROM大小 512KB */

#define RAM_LOW_ADRS 0x00010000                   /* RAM 低地址运行 vxWorks */

#define RAM_HIGH_ADRS 0x00C00000                  /* RAM 高地址存储 bootrom */

#define USER_RESERVED_MEM 0                       /* 用户保留地址 */

/*

* Cache options    定义缓存

*/

#define INCLUDE_CACHE_SUPPORT

#define USER_D_CACHE_ENABLE

#define USER_I_CACHE_ENABLE

#undef USER_D_CACHE_MODE

#define USER_D_CACHE_MODE (CACHE_COPYBACK)

/*

* 405 timers (PIT, FIT, WDT) 可由外部时钟驱动或者CPU驱动

*/

#define TIMER_CLOCK_EXTERNAL

/*

* Optional timestamp support

*/

#undef INCLUDE_TIMESTAMP

/*

* Auxilliary Timer rates    定义辅助计时器频率

*/

#ifdef TIMER_CLOCK_EXTERNAL

#define AUX_CLK_RATE_MIN (EXT_TIMER_CLK_FREQ / (1 << 21) )

#define AUX_CLK_RATE_MAX (EXT_TIMER_CLK_FREQ / (1 << 9) )

#define AUX_CLK_RATE_DEFAULT (EXT_TIMER_CLK_FREQ / (1 << 17) )

#else

/* ZZZZZZZZZZZ todo put rates in for system clock derived timer clock */

#endif

/*

* Watchdog Timer rates    

*/

#define WDT_RATE_MIN 1 /* minimum watchdog timer rate */

#define WDT_RATE_MAX 5000 /* maximum watchdog timer rate */

/* 实时时钟设置 */

#define INCLUDE_RTC

/* 去除不需要的网络驱动 */

#undef INCLUDE_EI

#undef INCLUDE_EX

#undef INCLUDE_ENP

#undef INCLUDE_LN

#undef INCLUDE_SM_NET

#undef INCLUDE_SM_SEQ_ADDR

/* #define for software floating point support */

#undef INCLUDE_SW_FP

/* 定义串口 Serial port configuration */

#define INCLUDE_SERIAL

/* PCI 设置,PCI configuration */

#define INCLUDE_PCI

#ifdef INCLUDE_PCI

/*

* Three programmable processor local memory address to PCI memory address

* mappings. If a region is enabled, PMMx_LOCAL_ADRS must be between

* PCI_MEMORY_START and PCI_MEMORY_END. If PMMx_PCI_HIGH_ADRS is non-zero in

* an enabled region, 64 bit dual cycle addresses will be generated on the

* PCI bus for this region.

*/

//定义PCI设备的初始化地址 参见 PCI设备(网卡)初始化代码分析

# define PMM0_LOCAL_ADRS PCI_MEMORY_START      // 定义PCI空间起始地址

# define PMM0_PCI_LOW_ADRS 0x80000000           // 定义PCI空间低位地址

# define PMM0_PCI_HIGH_ADRS 0x00000000         // 定义PCI空间高位地址

# define PMM0_PCI_MASK_ATTRIB (PMM_MASK_512MB | PMM_ENABLE)

# define PMM1_LOCAL_ADRS PMM_UNUSED

# define PMM1_PCI_LOW_ADRS PMM_UNUSED

# define PMM1_PCI_HIGH_ADRS PMM_UNUSED

# define PMM1_PCI_MASK_ATTRIB PMM_UNUSED

# define PMM2_LOCAL_ADRS PMM_UNUSED

# define PMM2_PCI_LOW_ADRS PMM_UNUSED

# define PMM2_PCI_HIGH_ADRS PMM_UNUSED

# define PMM2_PCI_MASK_ATTRIB PMM_UNUSED

/*

* PCI memory address to processor local memory address mapping. If a region

* is enabled, PTMx_LOCAL_ADRS must be within the two Local memory / peripheral

* regions (0x00000000-0x7FFFFFFF, or 0F0000000-0xFFFFFFFF)

*/

# define PTM1_LOCAL_ADRS LOCAL_MEM_LOCAL_ADRS

# define PTM1_SIZE_ATTRIB PTM_SIZE_2GB | PTM_ENABLE

# define PTM2_LOCAL_ADRS PTM_UNUSED

# define PTM2_SIZE_ATTRIB PTM_UNUSED

#endif /* INCLUDE_PCI */

/*

* 如果支持网络,本地EMAC和PCI网卡,必须有一个被选取,两者都是END形式驱动

*/

#define INCLUDE_NETWORK             /* 支持网络 */

#define INCLUDE_EMAC_NETWORK       /* 405GP 本地 EMAC 网络 */

#undef INCLUDE_PCI_NETWORK         /* PCI 网络 */

/*

* The board does not have the Ethernet MAC address of the EMAC stored

* in any sort of NVRAM. Modify the 12 digit string below to match the decal

* that is on your board.

*/

#ifdef INCLUDE_EMAC_NETWORK

    #define DEFAULT_EMAC_HW_ADDR "xxxxxxxxxxxx"         /* 网络硬件地址,即MAC地址 */

#endif

/*

* WDB 通过网络Enhanced Network Driver加载调试程序,若网络加载调试,必须定义此项

*/

#define WDB_COMM_TYPE WDB_COMM_SERIAL /*首先默认使用串口通信*/ 

#define WDB_TTY_CHANNEL 0 /*使用第一个串口

#ifdef INCLUDE_NETWORK

    #define INCLUDE_END

    #undef WDB_COMM_TYPE

    #define WDB_COMM_TYPE WDB_COMM_END      /* 定义网络通信, END 驱动 */

#else

    #undef WDB_COMM_TYPE

    #define WDB_COMM_TYPE     WDB_COMM_SERIAL /* 定义串口通信,和PC机串口连接 */ 

    #undef WDB_TTY_CHANNEL

    #define WDB_TTY_CHANNEL 0                        /* 串口1 */

#endif /* INCLUDE_NETWORK */

/*************** 此处定义一些杂项 */

#ifdef NUM_TTY

#undef NUM_TTY

#endif

#define NUM_TTY 2             /* 定义了两个串口终端,*/

#ifdef WDB_TTY_BAUD

#undef WDB_TTY_BAUD

#endif

#define WDB_TTY_BAUD 57600 /* 波特率设置 9600, 19200, 38400, 57600, 115200 */

#ifdef CONSOLE_BAUD_RATE

#undef CONSOLE_BAUD_RATE

#endif

#define CONSOLE_BAUD_RATE 57600

#undef INCLUDE_ENV_VARS /* unix compatable environment variables */

#undef INCLUDE_TIMEX /* timexLib for exec timing */

#undef INCLUDE_HW_FP

#undef INCLUDE_TFTP_CLIENT /* used by autoboot from ftp server*/

#define INCLUDE_SW_FP

#define INCLUDE_ELF

#define INCLUDE_NET_SHOW

#define INCLUDE_PING

#undef INCLUDE_DEMO /* only for vxWorks bsp test */

#define ETHERNET_ADR_SET /* only for bootrom used */

#define INCLUDE_USER_APPL /* Startup the user's application in dos makefile project */

#undef PCIDEBUG

#ifdef INCLUDE_USER_APPL

#define USER_APPL_INIT _appEntry()

#endif

#endif /* INCconfigh */

#if defined(PRJ_BUILD)

#include "prjParams.h"

#endif

Makefile

# Makefile - make rules for board

#

#*/

CPU = PPC40x

TOOL = gnu

TGT_DIR=$(WIND_BASE)/target

include $(TGT_DIR)/h/make/defs.bsp

include $(TGT_DIR)/h/make/make.$(CPU)$(TOOL)

include $(TGT_DIR)/h/make/defs.$(WIND_HOST_TYPE)

## Only redefine make definitions below this point, or your definitions will

## be overwritten by the makefile stubs above.

TARGET_DIR = xxx

VENDOR = IBM

BOARD = xxx

RELEASE = vxWorks vxWorks.st bootrom_uncmp.hex

USR_ENTRY = usrInit

# ROM_TEXT_ADRS, ROM_SIZE, RAM_HIGH_ADRS, 和RAM_LOW_ADRS 在config.h,Makefile和Makefile.*文件中 # 都要定义,且必须要保持一致,

ROM_TEXT_ADRS = fff80100                 # ROM 起始地址

ROM_SIZE = 0007f000                      # ROM 空间大小

RAM_LOW_ADRS = 00010000                  # RAM 低地址 vxWorks */

RAM_HIGH_ADRS = 00C00000                 # RAM 高地址存储 bootrom */

HEX_FLAGS = -a 100

#ADDED_CFLAGS = -gdwarf -O0 # for debug

MACH_EXTRA = appentry.o                # 注意:这里加载用户的程序模块,程序调用在usrRoot()

BOOTCONFIG = bootconfig.c               # bsp bootconfig.c for bootrom

## Only redefine make definitions above this point, or the expansion of

## makefile target dependencies may be incorrect.

include $(TGT_DIR)/h/make/rules.bsp

include $(TGT_DIR)/h/make/rules.$(WIND_HOST_TYPE