裁剪U-boot

来源：互联网发布：知乎的timeline 编辑：程序博客网时间：2024/05/19 14:54

U-boot：V1.1.5

为了减小U-boot文件，我们需要把不用的裁掉！

主要从下面几个地方裁剪：

Makefile U-boot根目录下的Makefile
公共文件夹 common
驱动 drivers
RTC

1. 主Makefile

（1）删除examples

Ln217:

           examples\

Ln2230-2234:

rm -f $(obj)examples/hello_world $(obj)examples/timer \      $(obj)examples/eepro100_eeprom $(obj)examples/sched \      $(obj)examples/mem_to_mem_idma2intr $(obj)examples/82559_eeprom \      $(obj)examples/smc91111_eeprom $(obj)examples/interrupt \      $(obj)examples/test_burst

(2) 删除sk98lin支持

sk98lin is the Gigabit Ethernet driver for Marvell and SysKonnectnetwork adapter cards. It supports SysKonnect SK-98xx/SK-95xx compliant GigabitEthernet Adapter and any Yukon compliant chipset.

Ln203、Ln300、Ln307；

(3) 保留jffs2

删除cramfs、fat、fdos、reiserfs、ext2

Ln194：

     LIBS+= fs/jffs2/libjffs2.a

Ln299：

     fs/jffs2

Ln306：

     fs/jffs2

(4) 删除dtt

DigitalThermometer and Thermostat

数字温度计和恒温器

Ln199、Ln300、Ln307

(5) 删除disk

Harddisk

Ln197、Ln300、Ln307

2. 公共文件

在删除文件后，还要修改common下Makefile.

2.1 公共支持

(1) 删除Xilinx

..\common\

xilinx.c

Spartan

..\common\

spartan2.c

spartan3.c

Virtex2

..\common\

virtex2.c

修改common下fpga.c中关于xilinx的引用

#include<xilinx.h>

(2) 删除LCD

..\common\

lcd.c

(3) 删除USB keyboard

..\common\

usb_kbd.c

(4) 删除ACEX

ACEX device family

..\common\

ACEX1K.c

altera.c

(5) 删除FPGA

..\common\

fpga.c

(6) 删除S-Record

Motorola S-Record Format

..\common\

s_record.c

(7) 删除serial

Serial for MPC

..\common\

serial.c

(8) 删除soft

I²C and spi for soft

..\common\

soft_i2c.c

soft_spi.c

2.2 命令支持

删除除了LOADB，FLASH，MEMORY，NET，ENV，BOOTD，NAND以外的命令支持

(1) 配置定义

cmd_confdefs.h

所有解除定义在（Ln98）

#define CFG_CMD_ALL0xFFFFFFFFFFFFFFFFULL/* ALL commands*/

语句之后。

#undef  CFG_CMD_BDI#undef  CFG_CMD_LOADS#undef  CFG_CMD_IMI#undef  CFG_CMD_CACHE#undef  CFG_CMD_KGDB#undef  CFG_CMD_PCMCIA#undef  CFG_CMD_IDE#undef  CFG_CMD_PCI#undef  CFG_CMD_IRQ#undef  CFG_CMD_CONSOLE#undef  CFG_CMD_EEPROM#undef  CFG_CMD_ASKENV#undef  CFG_CMD_RUN#undef  CFG_CMD_ECHO#undef  CFG_CMD_I2C#undef  CFG_CMD_REGINFO#undef  CFG_CMD_IMMAP#undef  CFG_CMD_DATE#undef  CFG_CMD_DHCP#undef  CFG_CMD_BEDBUG#undef  CFG_CMD_FDC#undef  CFG_CMD_SCSI#undef  CFG_CMD_AUTOSCRIPT#undef  CFG_CMD_MII#undef  CFG_CMD_SETGETDCR#undef  CFG_CMD_BSP#undef  CFG_CMD_ELF#undef  CFG_CMD_MISC#undef  CFG_CMD_USB#undef  CFG_CMD_DOC#undef  CFG_CMD_JFFS2#undef  CFG_CMD_DTT#undef  CFG_CMD_SDRAM#undef  CFG_CMD_DIAG#undef  CFG_CMD_FPGA#undef  CFG_CMD_HWFLOW#undef  CFG_CMD_SAVES#undef  CFG_CMD_SPI#undef  CFG_CMD_FDOS#undef  CFG_CMD_VFD#undef  CFG_CMD_BMP#undef  CFG_CMD_PORTIO#undef  CFG_CMD_PING#undef  CFG_CMD_MMC#undef  CFG_CMD_FAT#undef  CFG_CMD_IMLS#undef  CFG_CMD_ITEST#undef  CFG_CMD_NFS#undef  CFG_CMD_REISER#undef  CFG_CMD_CDP#undef  CFG_CMD_XIMG#undef  CFG_CMD_UNIVERSE#undef  CFG_CMD_EXT2#undef  CFG_CMD_SNTP#undef  CFG_CMD_DISPLAY

(2) cmd_*.c

..\common\

 cmd_autoscript.c    cmd_bdinfo.c    cmd_bmp.ccmd_boot.ccmd_cache.ccmd_console.ccmd_date.ccmd_dcr.ccmd_diag.ccmd_display.ccmd_doc.ccmd_elf.ccmd_fdc.ccmd_i2c.ccmd_immap.ccmd_itest.ccmd_jffs2.ccmd_log.ccmd_mii.ccmd_misc.ccmd_portio.ccmd_reginfo.ccmd_reiser.ccmd_spi.ccmd_vfd.ccmd_ximg.c

1) load_addr等全局变量

cmd_bootm.c

2) getenv/setenv等函数

cmd_nvedit.c

2.3 引用

(1) 删除ppc_asm.tmpl

#include<ppc_asm.tmpl>

..\common\

miiphybb.c

(2) 删除part.h

..\common\

common.h

Ln100:

#include<part.h>

3. 驱动

同时修改drivers下Makefile.

3.1 网卡

1) tsec

Freescale Three Speed Ethernet Controller driver

..\drivers\

tsec.c

tsec.h

2) rtl8019

Realtek 8019AS Ethernet

..\drivers\

rtl8019.c

rtl8019.h

3) rtl8139

RealTek RTL8139 Ethernet

..\drivers\

rtl8139.c

4) rtl8169

RealTek RTL8169 Ethernet

..\drivers\

rtl8169.c

5) ne2000

ne2000 Ethernet

..\drivers\

ne2000.c

ne2000.h

6) lan91c96

LAN91C96 single-chip Ethernet

..\drivers\

lan91c96.c

lan91c96.h

7) dm9000x

DM9000 ISA NIC fast Ethernet

..\drivers\

dm9000x.c

dm9000x.h

8) BCM570x

PCI-X10/100/1000BASE-T

..\drivers\

bcm570x.c

bcm570x_autoneg.c

bcm570x_autoneg.h

bcm570x_bits.h

bcm570x_debug.h

bcm570x_lm.h

bcm570x_mm.h

bcm570x_queue.h

tigon3.c

tigon3.h

9) ns8382x

NatSemi DP8382 Ethernet

..\drivers\

ns8382x.c

10) CS8900A

Cirrus Logic CS8900A Ethernet

..\drivers\

cs8900.c

cs8900.h

11) KS8695

KS8695 LAN ethernet

..\drivers\

ks8695eth.c

12) e1000

e1000base driver for Intel® Gigabit Network Connections

..\drivers\

e1000.c

e1000.h

13) eepro100

Intel eepro100 ethernet

..\drivers\

eepro100.c

14) DP8381x

NatSemi DP8381x series

..\drivers\

natsemi.c

15) DP8382

NatSemi DP8382

..\drivers\

ns8382x.c

16) PCnet

AMD PCnet network controllers

..\drivers\

pcnet.c

17) plb2800

plb2800 ethernet

..\drivers\

plb2800_eth.c

18) Netarm

Netarm Ethernet Driver

..\drivers\

netarm_eth.c

netarm_eth.h

19) 8390

National Semiconductor NS8390 Ethernet

..\drivers\

8390.h

20) nicext

Broadcom Network Interface Card Extension (NICE)

..\drivers\

nicext.h

21) smc91111

SMC's LAN91C111 Ethernet Driver

..\drivers\

smc91111.c

smc91111.h

22) BCM5701

Broadcom BCM5701 Network Driver

..\drivers\

5701rls.c

5701rls.h

23) 3c589

3Com's 3C589 (Etherlink III) PCMCIA Ethernet device

..\drivers\

3c589.c

3c589.h

3.2 pcmcia

Personal Computer Memory Card International Association

..\drivers\

ti_pci1410a.c

mpc8xx_pcmcia.c

tqm8xx_pcmcia.c

rpx_pcmcia.c

pxa_pcmcia.c

Intel82365

i82365.c

3.3 video

..\drivers\

sed156x.c

videomodes.c

videomodes.h

ct69000.c

Video support for Epson SED13806 chipset

sed13806.c

ColorFramebuffer Console driver for 8/15/16/24/32 bits per pixel

cfb_console.c

Basicvideo support for SMI SM501 "Voyager" graphic controller

sm501.c

Silicon Motion graphic interface forsm810/sm710/sm712 accelerator

smiLynxEM.c

3.4 S3C4510B

..\drivers\

s3c4510b_eth.c

s3c4510b_eth.h

s3c4510b_uart.c

s3c4510b_uart.h

3.5 NetSilicon

1) ns7520

..\drivers\

ns7520_eth.c

2) ns9750

..\drivers\

ns9750_eth.c

ns9750_serial.c

3.6 USB

..\drivers\

usbdcore.c

(1) sl811

sl811_usb.c

sl811.h

3.7 PCI

..\drivers\

pci.c

pci_auto.c

pci_indirect.c

(1) w83c553f

Winbond 83C553

w83c553f.c

(2) dc2114x

DEC PCI complexcard

dc2114x.c

3.8 keyboard

..\drivers\

keyboard.c

pc_keyb.c

PS/2multiplexer driver

ps2mult.c

Simple16550A serial driver

ps2ser.c

Intel8042 keyboard driver routines

i8042.c

3.9 i2c外设

OMAP2420, OMAP1510

..\drivers\

omap24xx_i2c.c

omap1510_i2c.c

3.10 ip-swtich

INCA-IP internal switch ethernet driver

..\drivers\

inca-ip_sw.c

3.11 EEPROM

Three-wire (MicroWire) serial eeprom driver(for 93C46 and compatibles)

..\drivers\

mw_eeprom.c

3.12 IC

ALI M5123 Logical device

..\drivers\

ali512x.c

3.13 SCSI

SCSI support based on the chip sym53C810

..\drivers\

sym53c8xx.c

3.14 DTT

The DS1722 Digital Thermometer andThermostat with SPI/3-Wire Interface provides temperature readings whichindicate the temperature of the device.

..\drivers\

ds1722.c

3.15 serial

..\drivers\

PrimeCell PL011

serial_pl010.c

PrimeCellPL011 UARTs on the IntegratorCP

serial_pl011.c

serial_pl011.h

MAX3100

serial_max3100.c

serial_xuartlite.c

(1) ns

ns16550.c

ns87308.c

serial.c

4. rtc

时钟芯片使用PCF8563（根据自己使用的开发板而定）

删除除pcf8563.c和date.c外的所有文件

../rtc

     bf533_rtc.c     ds164x.c     ds174x.c     ds1302.c     ds1306.c     ds1307.c     ds1337.c     ds1374.c     ds1556.c     ds12887.c     m41t11.c     m48t35ax.c     max6900.c     mc146818.c     mk48t59.c     mpc5xxx.c     mpc8xx.c     rs5c372.c     s3c24x0_rtc.c

同时修改rtc下Makefile.

下载：精简版U-boot（V1.1.5）

1 0