分类： LINUX
2013-01-21 14:51:19
开发板为mini2440，现在准备移植u-boot 2010.03到开发板中
首先进行配制
make smdk2440_config
现分析这个配制过程，make smdk2440_config之后，make实现执行的是
smdk2440_config : unconfig
@$(MKCONFIG) $(@:_config=) arm arm920t smdk2410 samsung s3c24x0
MKCONFIG 为顶层的mkconfig脚本，上面的意思是把下面的参数传递给mkconfig
mkconfig smdk2440 arm arm920t smdk2440 samsung s3c24x0
$0 $1 $2 $3 $4 $5 $6
执行的结果是：
1、在include目录下建立如下链接文件：
asm -> asm-arm
asm/arch -> arch-s3c24x0
asm/proc -> proc-armv
2、在include目录下建立如下配制文件：
config.mk 的内容为：
ARCH = arm
CPU = arm920t
config.mk BOARD = smdk2440
VENDOR = samsung
SOC = s3c24x0
3、在include目录下建立如下头文件：
config.h的内容为：
/* Automatically generated - do not edit */
#define CONFIG_BOARDDIR board/samsung/smdk2440
config.h #include
#include
#include
config_defaults.h的内容是：
/*
* config_defaults.h - sane defaults for everyone
*
* Copyright (c) 2009 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#ifndef _CONFIG_DEFAULTS_H_
#define _CONFIG_DEFAULTS_H_
/* Support bootm-ing different OSes */
#define CONFIG_BOOTM_LINUX 1
#define CONFIG_BOOTM_NETBSD 1
#define CONFIG_BOOTM_RTEMS 1
#define CONFIG_GZIP 1
#define CONFIG_ZLIB 1
#endif
/*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <
* Marius Groeger
* Gary Jennejohn
* David Mueller
*
* Modified for the friendly-arm SBC-2410X by
* (C) Copyright 2005
* JinHua Luo, GuangDong Linux Center,
*
* Configuation settings for the friendly-arm SBC-2410X board.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __CONFIG_H
#define __CONFIG_H
/*
* If we are developing, we might want to start armboot from ram
* so we MUST NOT initialize critical regs like mem-timing ...
*/
#undef CONFIG_SKIP_LOWLEVEL_INIT /* undef for developing */
/*
* High Level Configuration Options
* (easy to change)
*/
#define CONFIG_ARM920T 1 /* This is an ARM920T Core */
#define CONFIG_S3C24X0 1 /* in a SAMSUNG S3C24x0-type SoC */
//#define CONFIG_S3C2410 1 /* specifically a SAMSUNG S3C2410 SoC */
//#define CONFIG_SBC2410X 1 /* on a friendly-arm SBC-2410X Board */
#define CONFIG_S3C2440 1 /* in a SAMSUNG S3C2440 SoC */
#define CONFIG_SMDK2440 1 /* on a SMDK2440 Board */
#define CONFIG_SMDK2440_LED 1
#define CONFIG_S3C2410_NAND_SKIP_BAD 1
/* input clock of PLL */
#define CONFIG_SYS_CLK_FREQ 12000000/* the SBC2410X has 12MHz input clock */
#define CONFIG_mini2440_X35 'x'
#define CONFIG_mini2440_T35 't'
#define CONFIG_mini2440_N35 'n'
#define CONFIG_mini2440_W35 'w'
#define CONFIG_LCDTYPE CONFIG_mini2440_W35
#define USE_920T_MMU 1
//#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
#define CONFIG_USB_DEVICE 1
#ifdef CONFIG_USB_DEVICE
#define CONFIG_USE_IRQ 1
#endif
/*
* Size of malloc() pool
*/
#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 128*1024)
#define CONFIG_SYS_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
/*
* Hardware drivers
*/
#if 0
#define CONFIG_NET_MULTI
#define CONFIG_CS8900 /* we have a CS8900 on-board */
#define CONFIG_CS8900_BASE 0x19000300
#define CONFIG_CS8900_BUS16 /* the Linux driver does accesses as shorts */
#endif
#define CONFIG_NET_MULTI 1
#define CONFIG_NET_RETRY_COUNT 20
#define CONFIG_DRIVER_DM9000 1
#define CONFIG_DM9000_BASE 0x20000300
#define DM9000_IO CONFIG_DM9000_BASE
#define DM9000_DATA (CONFIG_DM9000_BASE+4)
#define CONFIG_DM9000_USE_16BIT 1
#define CONFIG_DM9000_NO_SROM 1
#undef CONFIG_DM9000_DEBUG
/*
* select serial console configuration
*/
#define CONFIG_S3C24X0_SERIAL
#define CONFIG_SERIAL1 1 /* we use SERIAL 1 on SBC2410X */
/************************************************************
* RTC
************************************************************/
#define CONFIG_RTC_S3C24X0 1
/* allow to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE
#define CONFIG_BAUDRATE 115200
/*
* BOOTP options
*/
#define CONFIG_BOOTP_BOOTFILESIZE
#define CONFIG_BOOTP_BOOTPATH
#define CONFIG_BOOTP_GATEWAY
#define CONFIG_BOOTP_HOSTNAME
/*
* Command line configuration.
*/
#include
#define CONFIG_CMD_ASKENV
#define CONFIG_CMD_CACHE
#define CONFIG_CMD_DATE
#define CONFIG_CMD_DHCP
#define CONFIG_CMD_ELF
//#define CONFIG_MTD_DEVICE
//#define CONFIG_CMD_MTDPARTS
#define CONFIG_CMD_PING
#define CONFIG_CMD_NAND
#define CONFIG_CMD_REGINFO
#define CONFIG_CMD_FAT
/* FAT support*/
//#define CONFIG_CMD_EXT2
#define CONFIG_CMD_JFFS2
/* JFFS2 Support*/
#define CONFIG_CMD_USB
/* USB Support*/
#define CONFIG_BOOTDELAY 1
#define CONFIG_ETHADDR 08:08:11:18:12:27
#define CONFIG_NETMASK 255.255.255.0
#define CONFIG_IPADDR 192.168.1.226
#define CONFIG_SERVERIP 192.168.1.172
#define CONFIG_GATEWAYIP 192.168.1.1
#define CONFIG_OVERWRITE_ETHADDR_ONCE
// Hanson add to define boot filesystem type
#define BOOT_NFS 0
#define BOOT_YAFFS2 1
#define BOOT_JFFS2 2
#define BOOT_RAMDISK 3
#define BOOT_TYPE BOOT_NFS
// Hanson change for YAFFS2 debug,boot from YAFFS2
#if (BOOT_TYPE == BOOT_YAFFS2)
#define CONFIG_BOOTARGS "noinitrd root=/dev/mtdblock3 init=/linuxrc console=ttySAC0"
#elif (BOOT_TYPE == BOOT_NFS)
// Hanson change for NFS debug,boot from root_nfs
//#define CONFIG_BOOTARGS "console=ttySAC0 root=/dev/nfs nfsroot=192.168.1.210:/home/hanson/root_nfs/fs_mini ip=192.168.1.226:192.168.1.210:192.168.1.210:255.255.255.0:sbc2440.arm9.net:eth0:off"
#define CONFIG_BOOTARGS "console=ttySAC0 root=/dev/nfs nfsroot=192.168.1.72:/opt/rootfs ip=192.168.1.226:192.168.1.72:192.168.1.72:255.255.255.0:smdk2440a.embedclub.com:eth0:off"
#elif (BOOT_TYPE == BOOT_RAMDISK)
#define CONFIG_BOOTARGS "root=/dev/ram0 rw init=/linuxrc initrd=0x32800000,0x700000 console=ttySAC0,115200"
#elif (BOOT_TYPE == BOOT_JFFS2)
#define CONFIG_BOOTARGS "noinitrd root=/dev/mtdblock3 init=/linuxrc console=ttySAC0"
#endif
//#define CONFIG_BOOTCOMMAND "nfs 0x30008000 192.168.0.72:/opt/uImage;bootm"
#define CONFIG_BOOTCOMMAND "nand read 0x30008000 60000 500000;bootm 0x30008000"
#define CONFIG_EXTRA_ENV_SETTINGS \
"embedclub=bmp d 70000\0 " \
"stdin=serial\0" \
"stdout=serial\0" \
"stderr=serial\0" \
"lcdtype=w\0" \
""
#if defined(CONFIG_CMD_KGDB)
#define CONFIG_KGDB_BAUDRATE 115200 /* speed to run kgdb serial port */
/* what's this ? it's not used anywhere */
#define CONFIG_KGDB_SER_INDEX 1 /* which serial port to use */
#endif
/*
* Miscellaneous configurable options
*/
#define CONFIG_SYS_LONGHELP /* undef to save memory */
#define CONFIG_SYS_PROMPT "[u-boot@SMDK2440A]# " /* Monitor Command Prompt */
#define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
#define CONFIG_SYS_MAXARGS 16 /* max number of command args */
#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
#define CONFIG_SYS_MEMTEST_START 0x30000000 /* memtest works on */
#define CONFIG_SYS_MEMTEST_END 0x33F00000 /* 63 MB in DRAM */
#define CONFIG_SYS_LOAD_ADDR 0x30008000 /* default load address */
#define CONFIG_SYS_HZ 1000
/* valid baudrates */
#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
/*-----------------------------------------------------------------------
* Stack sizes
*
* The stack sizes are set up in start.S using the settings below
*/
#define CONFIG_STACKSIZE (128*1024) /* regular stack */
#ifdef CONFIG_USE_IRQ
#define CONFIG_STACKSIZE_IRQ (4*1024) /* IRQ stack */
#define CONFIG_STACKSIZE_FIQ (4*1024) /* FIQ stack */
#endif
/*-----------------------------------------------------------------------
* Physical Memory Map
*/
#define CONFIG_NR_DRAM_BANKS 1 /* we have 1 bank of DRAM */
#define PHYS_SDRAM_1 0x30000000 /* SDRAM Bank #1 */
#define PHYS_SDRAM_1_SIZE 0x04000000 /* 64 MB */
#define PHYS_FLASH_1 0x00000000 /* Flash Bank #1 */
#define CONFIG_SYS_FLASH_BASE PHYS_FLASH_1
/*-----------------------------------------------------------------------
* FLASH and environment organization
*/
/* #define CONFIG_AMD_LV400 1 /\* uncomment this if you have a LV400 flash *\/ */
//#define CONFIG_AMD_LV800 1 /* uncomment this if you have a LV800 flash */
#define CONFIG_SST_VF1601 1 /* uncomment this if you have a Am29LV160DB flash */
#define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */
#ifdef CONFIG_AMD_LV800
#define PHYS_FLASH_SIZE 0x00100000 /* 1MB */
#define CONFIG_SYS_MAX_FLASH_SECT (19) /* max number of sectors on one chip */
#define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + 0x0F0000) /* addr of environment */
#endif
#ifdef CONFIG_AMD_LV400
#define PHYS_FLASH_SIZE 0x00080000 /* 512KB */
#define CONFIG_SYS_MAX_FLASH_SECT (11) /* max number of sectors on one chip */
#define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + 0x070000) /* addr of environment */
#endif
/* timeout values are in ticks */
#define CONFIG_SYS_FLASH_ERASE_TOUT (5*CONFIG_SYS_HZ) /* Timeout for Flash Erase */
#define CONFIG_SYS_FLASH_WRITE_TOUT (5*CONFIG_SYS_HZ) /* Timeout for Flash Write */
//#if 0
#define CONFIG_CMD_EEPROM
#define CONFIG_CMD_I2C
#define CONFIG_DRIVER_S3C24X0_I2C 1 /* we use the buildin I2C controller */
#define CONFIG_HARD_I2C 1 /* I2C with hardware support */
#define CONFIG_SYS_I2C_SPEED 100000 /* I2C speed and slave address */
#define CONFIG_SYS_I2C_SLAVE 0x7F
#define CONFIG_SYS_I2C_EEPROM_ADDR 0x50 /* EEPROM at24c08 */
#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 1 /* Bytes of address */
/* mask of address bits that overflow into the "EEPROM chip address" */
#define CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW 0x07
#define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS 4 /* The Catalyst CAT24WC08 has */
/* 16 byte page write mode using*/
/* last 4 bits of the address */
#define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 10 /* and takes up to 10 msec */
#define CONFIG_SYS_EEPROM_PAGE_WRITE_ENABLE
//#define CONFIG_ENV_IS_IN_EEPROM 1 /* use EEPROM for environment vars */
//#define CONFIG_ENV_OFFSET 0x000 /* environment starts at offset 0 */
//#define CONFIG_ENV_SIZE 0x400 /* 1KB */
//#else
#define CONFIG_ENV_IS_IN_NAND 1
//#define CONFIG_ENV_IS_IN_FLASH 1
#define CONFIG_ENV_OFFSET 0X40000
#define CONFIG_ENV_SIZE 0x20000 /* Total Size of Environment Sector */
//#endif
/* == LENGTH_UBOOT*/
#ifdef CONFIG_SST_VF1601
#define PHYS_FLASH_SIZE 0x00200000 /* 2MB */
#define CONFIG_SYS_MAX_FLASH_SECT (32) /* max number of sectors on one chip */
#define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET) /* addr of environment */
#endif
/*-----------------------------------------------------------------------
* NAND flash settings
*/
#if defined(CONFIG_CMD_NAND)
#define CONFIG_NAND_S3C2410
#define CONFIG_SYS_NAND_BASE 0x4E000000
#define CONFIG_SYS_MAX_NAND_DEVICE 1 /* Max number of NAND devices */
#define SECTORSIZE 512
#define SECTORSIZE_2K 2048
#define NAND_SECTOR_SIZE SECTORSIZE
#define NAND_SECTOR_SIZE_2K SECTORSIZE_2K
#define NAND_BLOCK_MASK 511
#define NAND_BLOCK_MASK_2K 2047
#define NAND_MAX_CHIPS 1
#define CONFIG_MTD_NAND_VERIFY_WRITE
#define CONFIG_SYS_64BIT_VSPRINTF /* needed for nand_util.c */
#endif /* CONFIG_CMD_NAND */
#define CONFIG_SETUP_MEMORY_TAGS
#define CONFIG_INITRD_TAG
#define CONFIG_CMDLINE_TAG
#define CONFIG_SYS_HUSH_PARSER
#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
#define CONFIG_CMDLINE_EDITING
//#ifdef CONFIG_CMDLINE_EDITING
//#undef CONFIG_AUTO_COMPLETE
//#else
#define CONFIG_AUTO_COMPLETE
//#endif
#if 1
#define CONFIG_USB_OHCI
#define CONFIG_USB_STORAGE
//#define CONFIG_KEYBOARD
//#define CONFIG_USB_KEYBOARD
#define CONFIG_DOS_PARTITION
#define CONFIG_SYS_DEVICE_DEREGISTER
#define CONFIG_SUPPORT_VFAT
#define LITTLEENDIAN
#endif
#define CONFIG_JFFS2_NAND 1
//#undef CONFIG_JFFS2_CMDLINE
#define CONFIG_JFFS2_DEV "nand0"
#define CONFIG_JFFS2_PART_SIZE 0x480000
#define CONFIG_JFFS2_PART_OFFSET 0x80000
#define CONFIG_JFFS2_CMDLINE 1
#define MTDIDS_DEFAULT "nand0=nandflash0"
#define MTDPARTS_DEFAULT "mtdparts=nandflash0:256k(bootloader)," \
"128k(params)," \
"5m(kernel)," \
"-(root)"
#define ENABLE_CMD_LOADB_X 1
#define ENABLE_CMD_NAND_YAFFS 1
#define ENABLE_CMD_NAND_YAFFS_SKIPFB 1
//#define CFG_NAND_YAFFS1_NEW_OOB_LAYOUT 1
#if 1
#define CONFIG_CMD_BMP
#define CONFIG_VIDEO
#define CONFIG_VIDEO_S3C2410
#define CONFIG_VIDEO_LOGO
#define VIDEO_FB_16BPP_WORD_SWAP
#define CONFIG_VIDEO_SW_CURSOR
#define CONFIG_VIDEO_BMP_LOGO
//#define CONFIG_CONSOLE_EXTRA_INFO
//#define CONFIG_CONSOLE_CURSOR
//#define CONFIG_CONSOLE_TIME
#define CONFIG_CFB_CONSOLE
#define CONFIG_SYS_CONSOLE_IS_IN_ENV
//#define CFG_CONSOLE_INFO_QUIET
//#define VIDEO_FB_LITTLE_ENDIAN
#define CONFIG_SPLASH_SCREEN
#define CONFIG_SYS_VIDEO_LOGO_MAX_SIZE (240*320+1024+100) /* 100 = slack */
#define CONFIG_VIDEO_BMP_GZIP
#define CONFIG_CMD_UNZIP
#define LCD_VIDEO_ADDR 0x33d00000
/*for PC-keyboard*/
#define VIDEO_KBD_INIT_FCT 0
#define VIDEO_TSTC_FCT serial_tstc
#define VIDEO_GETC_FCT serial_getc
#endif
/*for SD Card*/
#define CONFIG_CMD_MMC
#define CONFIG_MMC 1
#define CONFIG_MMC_S3C 1 /* Enabling the MMC driver */
#define CFG_MMC_BASE 0xff000000
#if 0
#define CONFIG_YAFFS2
//#undef CONFIG_YAFFS_YAFFS2
#undef CONFIG_YAFFS_NO_YAFFS1
#endif
#endif /* __CONFIG_H */
asm/config.h的内容是：
/*
* Copyright 2009 Freescale Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*/
#ifndef _ASM_CONFIG_H_
#define _ASM_CONFIG_H_
/* Relocation to SDRAM works on all ARM boards */
#define CONFIG_RELOC_FIXUP_WORKS
#endif
