求助：skyeye 的nandflash模拟是否只支持s3c2410
我用skyeye调试vivi，模拟s3c2440的nandflash方式启动，结果发现在nandflash的读函数中执行一定步数后，程序就跑乱掉了，下面是nandflash的读函数。#include <config.h>
#define __REGb(x) (*(volatile unsigned char *)(x))
#define __REGi(x) (*(volatile unsigned int *)(x))
#define NF_BASE 0x4e000000
#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 function */
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;
}
该函数应该没有问题，因为我调试的vivi是实验板自带的，是不是在skyeyek中仿真nandflash时对nandflash的读写函数有什么特殊要求？
[ 本帖最后由 huangzhendi 于 2009-2-23 01:36 编辑 ] http://www.linuxfans.org/bbs/thread-182371-1-1.html **************************** WARNING **********************************
If you want to run ELF image, you should use -e option to indicate
your elf-format image filename. Or you only want to run binary image,
you need to set the filename of the image and its entry in skyeye.conf.
***********************************************************************
Your elf file is little endian.
arch: arm
cpu info: armv4, arm920t, 41009200, ff00fff0, 2
mach info: name s3c2410x, mach_init addr 0x806e790
ethmod num=1, mac addr=8:0:3e:26:a:5b, hostip=10.0.0.1
nandflash: dump ./nand.dump
file size:69206016
dbct info: turn on dbct!
uart_mod:0, desc_in:, desc_out:, converter:
SKYEYE: use arm920t mmu ops
Loaded RAM ./vivi
ERROR: s3c2410x_io_write_word(0x4c000000) = 0x00ffffff
VIVI version 0.1.4 ([email protected]) (gcc version 4.2.2) #0.1.4 2009年 02月 23日 星期一 00:24:24 CST
MMU table base address = 0x33DFC000
NAND device: Manufacture ID: 0xec, Chip ID: 0x76 (Samsung K9D1208V0M)
Found default vivi parameters
Press Return to start the LINUX now, any other key for vivi
Copy linux kernel from 0x00030000 to 0x30008000, size = 0x00100000 ... done
Warning: this binary is not compressed linux kernel image
zImage magic = 0xffffffff
Setup linux parameters at 0x30000100
linux command line is: "noinitrd root=/dev/mtdblock/2 init=/linuxrc console=ttyS0"
MACH_TYPE = 193
NOW, Booting Linux......
启动成功了，原因是我使用skyeye命令默认生成的nand.dump，改用http://www.linuxfans.org/bbs/thread-184643-1-5.html的方法生成nand.dump后就正常了:lol: 。但由于采用了nandflash，没有办法用仿真跟踪代码，感觉是因为开始部分代码的运行地址是0x00000000开始的，与elf文件中的装载地址不一致所。 楼主 ~~~楼主
求教啊
我正在尝试skyeye 用vivi 引导。。
但是skyeye.conf就不知道怎么写。。。
就用过skyeye用u-boot引导。老师留的思考题
帮帮忙好么 谢谢了啊
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