环境：arm-linux-gcc4.3.2 redhat as5 友善之臂MICRO2440开发板 u-boot-2009.06
因为移植过程与下面列的差不多，所以就不细写了，移植好的放在下面，只是完成了启动。
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| 文件: | uboot_micro2440_200906.tar.bz2 |
| 大小: | 0KB |
| 下载: | 下载 |
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转载：移植U－Boot.1.3.1到S3C244和S3C2410
原文链接：http://blog.chinaunix.net/u1/34474/showart.php?id=487416
首先，U-Boot1.3.1还没有支持s3c2440，移植仍是用2410的文件稍作修改而成的。2440和2410的区别在我移植1.2.0的文章中已经写了，这里不再赘述。
对于1.3.1和1.2.0的差别，我初看了一下，（对于ARM920T内核）应该是增加了对ATMEL公司的AT91RM9200系列处理器的支持。至于S3C24X0系列的芯片，原理上并没有什么大的变化。
一、在U-Boot中建立自己的开发板类型，并测试编译。
我为开发板取名叫: tekkaman2440
0 在工作目录下解压U－Boot。
[tekkamanninja@ARM9-Host working]$ tar -xjvf u-boot-1.3.1.tar.bz2
1 进入U-Boot目录，修改Makefile（我在fedora 8 下，比较喜欢使用KWrite）
[tekkamanninja@ARM9-Host working]$ cd u-boot-1.3.1
[tekkamanninja@ARM9-Host u-boot-1.3.1]$ kwrite Makefile
#为tekkaman2440建立编译项
sbc2410x_config: unconfig
@$(MKCONFIG) $(@:_config=) arm arm920t sbc2410x NULL s3c24x0
tekkaman2440_config : unconfig
@$(MKCONFIG) $(@:_config=) arm arm920t tekkaman2440 tekkaman s3c24x0
各项的意思如下:
arm: CPU的架构(ARCH)
arm920t: CPU的类型(CPU)，其对应于cpu/arm920t子目录。
tekkaman2440: 开发板的型号(BOARD)，对应于board/tekkaman/tekkaman2440目录。
tekkaman: 开发者/或经销商(vender)。
s3c24x0: 片上系统(SOC)。
同时在“ifndef CROSS_COMPILE ”之前加上自己交叉编译器的路径，比如我使用crosstool-0.43制作的基于2.6.24内核和gcc-4.1.1-glibc-2.3.2的ARM9TDMI交叉编译器，则：
CROSS_COMPILE=/home/tekkamanninja/working/gcc4.1.1/gcc-4.1.1-glibc-2.3.2/arm-9tdmi-linux-gnu/bin/arm-9tdmi-linux-gnu-
2 在/board子目录中建立自己的开发板tekkaman2440目录
由于我在上一步板子的开发者/或经销商(vender)中填了 tekkaman ，所以开发板tekkaman2440目录一定要建在/board子目录中的tekkaman目录下 ，否则编译会出错。
[tekkamanninja@ARM9-Host u-boot-1.3.1]$ cd board
[tekkamanninja@ARM9-Host board]$ mkdir tekkaman tekkaman/tekkaman2440
[tekkamanninja@ARM9-Host board]$ cp -arf sbc2410x/* tekkaman/tekkaman2440/
[tekkamanninja@ARM9-Host board]$ cd tekkaman/tekkaman2440/
[tekkamanninja@ARM9-Host tekkaman2440]$ mv sbc2410x.c tekkaman2440.c
还要记得修改自己的开发板tekkaman2440目录下的Makefile文件，不然编译时会出错：
[tekkamanninja@ARM9-Host tekkaman2440]$ kwrite Makefile
COBJS := tekkaman2440.o flash.o
3 在include/configs/中建立配置头文件
[tekkamanninja@ARM9-Host tekkaman2440]$ cd ../../..
[tekkamanninja@ARM9-Host u-boot-1.3.1]$ cp include/configs/sbc2410x.h include/configs/tekkaman2440.h
4 测试编译能否成功
1、配置
[tekkamanninja@ARM9-Host u-boot-1.3.1]$ make tekkaman2440_config
Configuring for tekkaman2440 board...
可能出现的问题:
(1) 如果出现：
$ make tekkaman2440_config
Make1927: *** 遗漏分隔符 。 停止。
请在U－boot的根目录下的Makefile的
@$(MKCONFIG) $(@:_config=) arm arm920t tekkaman2440 tekkaman)
前加上“Tab”键
2、测试编译
[tekkamanninja@ARM9-Host u-boot-1.3.1]$make
测试通过后进行下一步
二、修改U－Boot中的文件，以同时匹配2440和2410。
1 修改/cpu/arm920t/start.S
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#include <config.h>
#include <version.h>
#if defined(CONFIG_AT91RM9200DK)
#include <status_led.h> /*这是针对AT91RM9200DK开发板的。对于SCB2440V4也有4个LED指示灯，我用来指示程序用行的进度。*/
#endif
......
/*
* the actual start code
*/
start_code:
/*
* set the cpu to SVC32 mode
*/
mrs r0,cpsr
bic r0,r0,#0x1f
orr r0,r0,#0xd3
msr cpsr,r0
#if defined(CONFIG_AT91RM9200DK)
bl coloured_LED_init
bl red_LED_on
#endif
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(0)修改寄存器地址定义
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#if defined(CONFIG_S3C2400) || defined(CONFIG_S3C2410)|| defined(CONFIG_S3C2440)
/* turn off the watchdog */
#if defined(CONFIG_S3C2400)
#define pWTCON 0x15300000
#define INTMSK 0x14400008 /* Interupt-Controller base addresses */
#define CLKDIVN 0x14800014 /* clock divisor register */
#else
#define pWTCON 0x53000000
#define INTMSK 0x4A000008 /* Interupt-Controller base addresses */
#define INTSUBMSK 0x4A00001C
#define CLKDIVN 0x4C000014 /* clock divisor register */
#endif
#define CLK_CTL_BASE 0x4C000000 /* tekkaman */
#define MDIV_405 0x7f << 12 /* tekkaman */
#define PSDIV_405 0x21 /* tekkaman */
#define MDIV_200 0xa1 << 12 /* tekkaman */
#define PSDIV_200 0x31 /* tekkaman */
......
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(1)修改中断禁止部分
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#if defined(CONFIG_S3C2410)
ldr r1, =0x7ff /*根据2410芯片手册，INTSUBMSK有11位可用，
vivi也是0x7ff，U－Boot一直没改过来。*/
ldr r0, =INTSUBMSK
str r1, [r0]
#endif
#if defined(CONFIG_S3C2440)
ldr r1, =0x7fff /*根据2440芯片手册，INTSUBMSK有15位可用*/
ldr r0, =INTSUBMSK
str r1, [r0]
#endif
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(2)修改时钟设置（2440的主频为405MHz。）
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# if defined(CONFIG_S3C2440)
/* FCLK:HCLK:PCLK = 1:4:8 */
ldr r0, =CLKDIVN
mov r1, #5
str r1, [r0]
mrc p15, 0, r1, c1, c0, 0 /*read ctrl register tekkaman*/
orr r1, r1, #0xc0000000 /*Asynchronous tekkaman*/
mcr p15, 0, r1, c1, c0, 0 /*write ctrl register tekkaman*/
/*now, CPU clock is 405.00 Mhz tekkaman*/
mov r1, #CLK_CTL_BASE /* tekkaman*/
mov r2, #MDIV_405 /* mpll_405mhz tekkaman*/
add r2, r2, #PSDIV_405 /* mpll_405mhz tekkaman*/
str r2, [r1, #0x04] /* MPLLCON tekkaman */
#else
/* FCLK:HCLK:PCLK = 1:2:4 */
/*
default FCLK is 12 MHz !
在这里U－Boot有一个错误：以为默认时钟为120MHz。其实如果没有添加以下设置FCLK的语句，芯片内部的PLL是无效的，即FCLK为
12MHz。S3C24x0的芯片手册说得很明白。我一开始没有注意到这一点，是 CalmArrow提醒了我并和我讨论过，他也做过实验证实了这点。在这里对CalmArrow表示感谢和敬意！*/
ldr r0, =CLKDIVN
mov r1, #3
str r1, [r0]
mrc p15, 0, r1, c1, c0, 0 /*read ctrl register tekkaman*/
orr r1, r1, #0xc0000000 /*Asynchronous tekkaman*/
mcr p15, 0, r1, c1, c0, 0 /*write ctrl register tekkaman*/
/*now, CPU clock is 202.8 Mhz tekkaman*/
mov r1, #CLK_CTL_BASE /* tekkaman*/
mov r2, #MDIV_200 /* mpll_200mhz tekkaman*/
add r2, r2, #PSDIV_200 /* mpll_200mhz tekkaman*/
str r2, [r1, #0x04]
# endif
#endif /* CONFIG_S3C2400 || CONFIG_S3C2410|| CONFIG_S3C2440 */
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红色部分是我添加的，利用vivi的代码。
(3)将从Flash启动改成从NAND Flash启动。
在以下U－Boot的重定向语句段：
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#ifdef CONFIG_AT91RM9200
#ifndef CONFIG_SKIP_RELOCATE_UBOOT
relocate: /* relocate U-Boot to RAM */
adr r0, _start /* r0 <- current position of code */
ldr r1, _TEXT_BASE /* test if we run from flash or RAM */
cmp r0, r1 /* don't reloc during debug */
beq stack_setup
ldr r2, _armboot_start
ldr r3, _bss_start
sub r2, r3, r2 /* r2 <- size of armboot */
add r2, r0, r2 /* r2 <- source end address*/
copy_loop:
ldmia {r3-r10} /* copy from source address [r0] */
stmia {r3-r10} /* copy to target address [r1] */
cmp r0, r2 /* until source end addreee [r2] */
ble copy_loop
#endif /* CONFIG_SKIP_RELOCATE_UBOOT */
#endif
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的后面添加上：
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#ifdef CONFIG_S3C2440_NAND_BOOT
@ reset NAND
mov r1, #NAND_CTL_BASE
ldr r2, =( (7<<12)|(7<<8)|(7<<4)|(0<<0) )
str r2, [r1, #oNFCONF]
ldr r2, [r1, #oNFCONF]
ldr r2, =( (1<<4)|(0<<1)|(1<<0) ) @ Active low CE Control
str r2, [r1, #oNFCONT]
ldr r2, [r1, #oNFCONT]
ldr r2, =(0x6) @ RnB Clear
str r2, [r1, #oNFSTAT]
ldr r2, [r1, #oNFSTAT]
mov r2, #0xff @ RESET command
strb r2, [r1, #oNFCMD]
mov r3, #0 @ wait
nand1:
add r3, r3, #0x1
cmp r3, #0xa
blt nand1
nand2:
ldr r2, [r1, #oNFSTAT] @ wait ready
tst r2, #0x4
beq nand2
ldr r2, [r1, #oNFCONT]
orr r2, r2, #0x2 @ Flash Memory Chip Disable
str r2, [r1, #oNFCONT]
@ get read to call C s (for nand_read())
ldr sp, DW_STACK_START @ setup stack pointer
mov fp, #0 @ no previous , so fp=0
@ copy U-Boot to RAM
ldr r0, =TEXT_BASE
mov r1, #0x0
mov r2, #0x30000
bl nand_read_ll
tst r0, #0x0
beq ok_nand_read
bad_nand_read:
loop2: b loop2 @ infinite loop
ok_nand_read:
@ verify
mov r0, #0
ldr r1, =TEXT_BASE
mov r2, #0x400 @ 4 bytes * 1024 = 4K-bytes
go_next:
ldr r3, [r0], #4
ldr r4, [r1], #4
teq r3, r4
bne notmatch
subs r2, r2, #4
beq stack_setup
bne go_next
notmatch:
loop3: b loop3 @ infinite loop
#endif @ CONFIG_S3C2440_NAND_BOOT
#ifdef CONFIG_S3C2410_NAND_BOOT
@ reset NAND
mov r1, #NAND_CTL_BASE
ldr r2, =0xf830 @ initial value
str r2, [r1, #oNFCONF]
ldr r2, [r1, #oNFCONF]
bic r2, r2, #0x800 @ enable chip
str r2, [r1, #oNFCONF]
mov r2, #0xff @ RESET command
strb r2, [r1, #oNFCMD]
mov r3, #0 @ wait
nand1:
add r3, r3, #0x1
cmp r3, #0xa
blt nand1
nand2:
ldr r2, [r1, #oNFSTAT] @ wait ready
tst r2, #0x1
beq nand2
ldr r2, [r1, #oNFCONF]
orr r2, r2, #0x800 @ disable chip
str r2, [r1, #oNFCONF]
@ get read to call C s (for nand_read())
ldr sp, DW_STACK_START @ setup stack pointer
mov fp, #0 @ no previous , so fp=0
@ copy U-Boot to RAM
ldr r0, =TEXT_BASE
mov r1, #0x0
mov r2, #0x30000
bl nand_read_ll
tst r0, #0x0
beq ok_nand_read
bad_nand_read:
loop2: b loop2 @ infinite loop
ok_nand_read:
@ verify
mov r0, #0
ldr r1, =TEXT_BASE
mov r2, #0x400 @ 4 bytes * 1024 = 4K-bytes
go_next:
ldr r3, [r0], #4
ldr r4, [r1], #4
teq r3, r4
bne notmatch
subs r2, r2, #4
beq stack_setup
bne go_next
notmatch:
loop3: b loop3 @ infinite loop
#endif @ CONFIG_S3C2410_NAND_BOOT
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在“ldr pc, _start_armboot”之前加入：
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# if defined(CONFIG_tekkaman2440_LED)
@ LED1 on u-boot stage 1 is
mov r1, #GPIO_CTL_BASE
add r1, r1, #oGPIO_B
ldr r2,=0x155aa
str r2, [r1, #oGPIO_CON]
mov r2, #0xff
str r2, [r1, #oGPIO_UP]
mov r2, #0x1c0
str r2, [r1, #oGPIO_DAT]
#endif
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修改目的：如果看到只有LED1亮了，说明U－Boot的第一阶段已完成！(针对友善之臂SBC2440V4，不是这块开发板的，必须修改或不添加)
在 “ _start_armboot: .word start_armboot ” 后加入：
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.align 2
DW_STACK_START: .word STACK_BASE+STACK_SIZE-4
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2 在board/tekkaman/tekkaman2440加入NAND Flash读函数文件，拷贝vivi中的nand_read.c文件到此文件夹即可：
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#include <config.h>
#define __REGb(x) (*(volatile unsigned char *)(x))
#define __REGi(x) (*(volatile unsigned int *)(x))
#define NF_BASE 0x4e000000
# if defined(CONFIG_S3C2440)
#define NFCONF __REGi(NF_BASE + 0x0)
#define NFCONT __REGi(NF_BASE + 0x4)
#define NFCMD __REGb(NF_BASE + 0x8)
#define NFADDR __REGb(NF_BASE + 0xC)
#define NFDATA __REGb(NF_BASE + 0x10)
#define NFSTAT __REGb(NF_BASE + 0x20)
//#define GPDAT __REGi(GPIO_CTL_BASE+oGPIO_F+oGPIO_DAT)
#define NAND_CHIP_ENABLE (NFCONT &= ~(1<<1))
#define NAND_CHIP_DISABLE (NFCONT |= (1<<1))
#define NAND_CLEAR_RB (NFSTAT |= (1<<2))
#define NAND_DETECT_RB { while(! (NFSTAT&(1<<2)) );}
#define BUSY 4
inline void wait_idle(void) {
while(!(NFSTAT & BUSY));
NFSTAT |= BUSY;
}
#define NAND_SECTOR_SIZE 512
#define NAND_BLOCK_MASK (NAND_SECTOR_SIZE - 1)
/* low level nand read */
int
nand_read_ll(unsigned char *buf, unsigned long start_addr, int size)
{
int i, j;
if ((start_addr & NAND_BLOCK_MASK) || (size & NAND_BLOCK_MASK)) {
return -1; /* invalid alignment */
}
NAND_CHIP_ENABLE;
for(i=start_addr; i < (start_addr + size);) {
/* READ0 */
NAND_CLEAR_RB;
NFCMD = 0;
/* Write Address */
NFADDR = i & 0xff;
NFADDR = (i >> 9) & 0xff;
NFADDR = (i >> 17) & 0xff;
NFADDR = (i >> 25) & 0xff;
NAND_DETECT_RB;
for(j=0; j < NAND_SECTOR_SIZE; j++, i++) {
*buf = (NFDATA & 0xff);
buf++;
}
}
NAND_CHIP_DISABLE;
return 0;
}
# endif
# if defined(CONFIG_S3C2410)
#define NFCONF __REGi(NF_BASE + 0x0)
#define NFCMD __REGb(NF_BASE + 0x4)
#define NFADDR __REGb(NF_BASE + 0x8)
#define NFDATA __REGb(NF_BASE + 0xc)
#define NFSTAT __REGb(NF_BASE + 0x10)
#define BUSY 1
inline void wait_idle(void) {
int i;
while(!(NFSTAT & BUSY))
for(i=0; i<10; i++);
}
/* low level nand read */
int
nand_read_ll(unsigned char *buf, unsigned long start_addr, int size)
{
int i, j;
if ((start_addr & NAND_BLOCK_MASK) || (size & NAND_BLOCK_MASK)) {
return -1; /* invalid alignment */
}
/* chip Enable */
NFCONF &= ~0x800;
for(i=0; i<10; i++);
for(i=start_addr; i < (start_addr + size);) {
/* READ0 */
NFCMD = 0;
/* Write Address */
NFADDR = i & 0xff;
NFADDR = (i >> 9) & 0xff;
NFADDR = (i >> 17) & 0xff;
NFADDR = (i >> 25) & 0xff;
wait_idle();
for(j=0; j < NAND_SECTOR_SIZE; j++, i++) {
*buf = (NFDATA & 0xff);
buf++;
}
}
/* chip Disable */
NFCONF |= 0x800; /* chip disable */
return 0;
}
# endif
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3 修改board/tekkaman/tekkaman2440/Makefile文件
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......
OBJS := tekkaman2440.o nand_read.o flash.o
......
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4 修改include/configs/tekkaman2440.h文件，添加如下内容：
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......
/*
* Nandflash Boot
*/
#define STACK_BASE 0x33f00000
#define STACK_SIZE 0x8000
//#define UBOOT_RAM_BASE 0x33f80000
/* NAND Flash Controller */
#define NAND_CTL_BASE 0x4E000000
#define bINT_CTL(Nb) __REG(INT_CTL_BASE + (Nb))
/* Offset */
#define oNFCONF 0x00
# if defined(CONFIG_S3C2440)
#define CONFIG_S3C2440_NAND_BOOT 1
/* Offset */
#define oNFCONT 0x04
#define oNFCMD 0x08
#define oNFADDR 0x0c
#define oNFDATA 0x10
#define oNFSTAT 0x20
#define oNFECC 0x2c
#define rNFCONF (*(volatile unsigned int *)0x4e000000)
#define rNFCONT (*(volatile unsigned int *)0x4e000004)
#define rNFCMD (*(volatile unsigned char *)0x4e000008)
#define rNFADDR (*(volatile unsigned char *)0x4e00000c)
#define rNFDATA (*(volatile unsigned char *)0x4e000010)
#define rNFSTAT (*(volatile unsigned int *)0x4e000020)
#define rNFECC (*(volatile unsigned int *)0x4e00002c)
# if defined(CONFIG_tekkaman2440_LED)
/* GPIO */
#define GPIO_CTL_BASE 0x56000000
#define oGPIO_B 0x10
#define oGPIO_CON 0x0 /* R/W, Configures the pins of the port */
#define oGPIO_DAT 0x4 /* R/W, Data register for port */
#define oGPIO_UP 0x8 /* R/W, Pull-up disable register */
#endif
# if defined(CONFIG_S3C2410)
#define CONFIG_S3C2410_NAND_BOOT 1
/* Offset */
#define oNFCONF 0x00
#define oNFCMD 0x04
#define oNFADDR 0x08
#define oNFDATA 0x0c
#define oNFSTAT 0x10
#define oNFECC 0x14
#define rNFCONF (*(volatile unsigned int *)0x4e000000)
#define rNFCMD (*(volatile unsigned char *)0x4e000004)
#define rNFADDR (*(volatile unsigned char *)0x4e000008)
#define rNFDATA (*(volatile unsigned char *)0x4e00000c)
#define rNFSTAT (*(volatile unsigned int *)0x4e000010)
#define rNFECC (*(volatile unsigned int *)0x4e000014)
#define rNFECC0 (*(volatile unsigned char *)0x4e000014)
#define rNFECC1 (*(volatile unsigned char *)0x4e000015)
#define rNFECC2 (*(volatile unsigned char *)0x4e000016)
#endif
/*JFFS2 Support */
#undef CONFIG_JFFS2_CMDLINE
#define CONFIG_JFFS2_NAND 1
#define CONFIG_JFFS2_DEV "nand0"
#define CONFIG_JFFS2_PART_SIZE 0x4c0000
#define CONFIG_JFFS2_PART_OFFSET 0x40000
/*JFFS2 Support */
/* USB Support 080218 */
#define CONFIG_USB_OHCI
#define CONFIG_USB_STORAGE
#define CONFIG_USB_KEYBOARD
#define CONFIG_DOS_PARTITION
#define CFG_DEVICE_DEREGISTER
#define CONFIG_SUPPORT_VFAT
#define LITTLEENDIAN
/* USB Support 080218 */
#endif /* __CONFIG_H */
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5 修改board/tekkaman/tekkaman2440/lowlevel_init.S文件
依照开发板的内存区的配置情况, 修改board/tekkaman/tekkaman2440/lowlevel_init.S文件，我利用友善之臂提供的vivi源码里的信息做了如下更改:
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......
#define B1_BWSCON (DW16)
#if defined(CONFIG_DRIVER_NE2000)
#define B2_BWSCON (DW16 + UBLB)
#else
#define B2_BWSCON (DW16)
#endif
#define B3_BWSCON (DW16 + WAIT + UBLB)
#define B4_BWSCON (DW16)
#define B5_BWSCON (DW16)
#define B6_BWSCON (DW32)
#define B7_BWSCON (DW32)
......
#if defined(CONFIG_DRIVER_NE2000)
#define B2_Tacs 0x3 /* 4clk tekkaman*/
#define B2_Tcos 0x3 /* 4clk tekkaman*/
#define B2_Tacc 0x7 /* 14clk */
#define B2_Tcoh 0x3 /* 4clk tekkaman*/
#define B2_Tah 0x3 /* 4clk tekkaman*/
#define B2_Tacp 0x3 /* 6clk tekkaman*/
#define B2_PMC 0x0 /* normal */
#else
#define B2_Tacs 0x0
#define B2_Tcos 0x0
#define B2_Tacc 0x7
#define B2_Tcoh 0x0
#define B2_Tah 0x0
#define B2_Tacp 0x0
#define B2_PMC 0x0
#endif
……
/* REFRESH parameter */
#define REFEN 0x1 /* Refresh enable */
#define TREFMD 0x0 /* CBR(CAS before RAS)/Auto refresh */
#define Trc 0x3 /* 7clk */
#define Tchr 0x2 /* 3clk */
# if defined(CONFIG_S3C2440)
#define Trp 0x2 /* 4clk */
#define REFCNT 1012
#else
#define Trp 0x0 /* 2clk */
#define REFCNT 0x0459
#endif
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6 修改/board/tekkaman/tekkaman2440/tekkaman2440.c
修改其对GPIO和PLL的配置(请参阅开发板的硬件说明和芯片手册)：
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......
#define FCLK_SPEED 1
#if FCLK_SPEED==0 /* Fout = 203MHz, Fin = 12MHz for Audio */
#define M_MDIV 0xC3
#define M_PDIV 0x4
#define M_SDIV 0x1
#elif FCLK_SPEED==1
#if defined(CONFIG_S3C2410)
/* Fout = 202.8MHz */
#define M_MDIV 0xA1
#define M_PDIV 0x3
#define M_SDIV 0x1
#endif
#if defined(CONFIG_S3C2440)
/* Fout = 405MHz */
#define M_MDIV 0x7f
#define M_PDIV 0x2
#define M_SDIV 0x1
#endif
#define USB_CLOCK 1
#if USB_CLOCK==0
#define U_M_MDIV 0xA1
#define U_M_PDIV 0x3
#define U_M_SDIV 0x1
#elif USB_CLOCK==1
#if defined(CONFIG_S3C2410)
#define U_M_MDIV 0x48
#define U_M_PDIV 0x3
#endif
#if defined(CONFIG_S3C2440)
#define U_M_MDIV 0x38
#define U_M_PDIV 0x2
#endif
#define U_M_SDIV 0x2
#endif
......
/* set up the I/O ports */
gpio->GPACON = 0x007FFFFF;
# if defined(CONFIG_tekkaman2440_LED)
gpio->GPBCON = 0x00055556;
#else
gpio->GPBCON = 0x00044556;
#endif
......
#if defined(CONFIG_S3C2410)
/* arch number of SMDK2410-Board */
gd->bd->bi_arch_number = MACH_TYPE_SMDK2410;
#endif
#if defined(CONFIG_S3C2440)
/* arch number of S3C2440 -Board */
gd->bd->bi_arch_number = MACH_TYPE_S3C2440 ;
#endif
/* adress of boot parameters */
gd->bd->bi_boot_params = 0x30000100;
icache_enable();
dcache_enable();
# if defined(CONFIG_tekkaman2440_LED)
gpio->GPBDAT = 0x180; //tekkamanninja
//int board_init (void)设置完成后，LED1和LED2会亮起！
#endif
return 0;
}
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