u-boot-2010.03在LT2440上的移植详解 (八)

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u-boot-2010.03在LT2440上的移植详解 (八)

郑重声明，这系列文章改写自博客园黄刚先生的《嵌入式Linux之我行——u-boot-2009.08在2440上的移植详解》

转载时请注明出处

文章出处：http://www.lt-net.cn

编译系统Ubuntu10.04交叉编译器arm-linux-gcc 4.3.3硬件设备LT2440开发板测试软件u-boot-2010.03依赖库无

uboot下载地址：http://ftp.denx.de/pub/u-boot/u-boot-2010.03.tar.bz2

本次移植在u-boot-2010.03原有功能的基础上增加如下特性：

  1.支持2KB  page Nand Flash读写
  2.支持Nand/Nor Flash启动自动识别
  3.支持DM9000AEP 10M/100M自适应网卡
  4.支持yaffs文件系统烧写
  5.支持USB下载功能
  6.支持一键式菜单
  7.支持启动Logo
  8.支持ubifs（待续）

上接：u-boot-2010.03在LT2440上的移植详解 (七)

支持一键式下载菜单，菜单的条目您可以自由添加，效果如下：

#####    LT2440 U-Boot -2010.03                #####
#####    Welcome to Embeded World             #####
#####                      designed by: LuTong  #####
#####                      www.lt-net.cn       #####
Download u-boot or STEPLDR.nb1 to Nand Flash
[e] Download e-boot to Nand Flash
[n] Download u-boot to Nor Flash
[k] Download Linux Kernel uImage to Nand Flash
[y] Download YAFFS2 Image to Nand Flash
[g] Download to SDRAM and Run
[d] Download Linux Kernel to SDRAM and RUN
[f] Format the Nand Flash
[l] Low-level Format the entire Nand Flash
Set the boot parameters
Boot the system
[r] Reboot U-Boot
[q] Quit from menu
Enter your selection:

首先我们增加一个menu菜单命令，需要增加一个cmd_menu.c的文件，文件内容如下：

#include <common.h>
#include <command.h>
#include <def.h>
#include <nand.h>
extern char console_buffer[];
extern int readline (const char *const prompt);
extern char awaitkey(unsigned long delay, int* error_p);
extern void download_nkbin_to_flash(void);
/**
* Parses a string into a number. The number stored at ptr is
* potentially suffixed with K (for kilobytes, or 1024 bytes),
* M (for megabytes, or 1048576 bytes), or G (for gigabytes, or
* 1073741824). If the number is suffixed with K, M, or G, then
* the return value is the number multiplied by one kilobyte, one
* megabyte, or one gigabyte, respectively.
*
* @param ptr where parse begins
* @param retptr output pointer to next char after parse completes (output)
* @return resulting unsigned int
*/
static unsigned long memsize_parse2 (const char *const ptr, const char **retptr)
{
unsigned long ret = simple_strtoul(ptr, (char **)retptr, 0);
int sixteen = 1;
switch (**retptr) {
case 'G':
case 'g':
ret <<= 10;
case 'M':
case 'm':
ret <<= 10;
case 'K':
case 'k':
ret <<= 10;
(*retptr)++;
sixteen = 0;
default:
break;
}
if (sixteen)
return simple_strtoul(ptr, NULL, 16);
return ret;
}
void param_menu_usage()
{
printf("/r/n##### Parameter Set Menu #####/r/n");
printf("[v] View the parameters/r/n");
printf("[s] Set parameter /r/n");
printf("[d] Delete parameter /r/n");
printf("[w] Save your parameters to flash memeory /r/n");
printf("[q] Quit /r/n");
printf("Enter your selection: ");
}
void param_menu_shell(void)
{
char c;
char cmd_buf[256];
char name_buf[20];
char val_buf[256];
while (1)
{
param_menu_usage();
c = awaitkey(-1, NULL);
printf("%c/n", c);
switch (c)
{
case 'v':
{
strcpy(cmd_buf, "printenv ");
printf("Name(Hint:Press 'Enter' to view all paramters): ");
readline(NULL);
strcat(cmd_buf, console_buffer);
run_command(cmd_buf, 0);
break;
}
case 's':
{
sprintf(cmd_buf, "setenv ");
printf("Name: ");
readline(NULL);
strcat(cmd_buf, console_buffer);
printf("Value: ");
readline(NULL);
strcat(cmd_buf, " ");
strcat(cmd_buf, console_buffer);
run_command(cmd_buf, 0);
break;
}
case 'd':
{
sprintf(cmd_buf, "setenv ");
printf("Name: ");
readline(NULL);
strcat(cmd_buf, console_buffer);
run_command(cmd_buf, 0);
break;
}
case 'w':
{
sprintf(cmd_buf, "saveenv");
run_command(cmd_buf, 0);
break;
}
case 'q':
{
return;
break;
}
}
}
}
void main_menu_usage(void)
{
printf("/r/n##### LT2440 U-Boot -2010.03 #####/r/n");
printf("/r##### Welcome to Embeded World #####/r/n");
printf("/r##### designed by: LuTong #####/r/n");
printf("/r##### www.lt-net.cn #####/r/n");
printf("[u] Download u-boot or STEPLDR.nb1 to Nand Flash/r/n");
printf("[e] Download e-boot to Nand Flash/r/n");
if (isNORFlash())
printf("[n] Download u-boot to Nor Flash/r/n");
printf("[k] Download Linux Kernel uImage to Nand Flash/r/n");
#ifdef CONFIG_CMD_JFFS2
printf("[j] Download JFFS2 Image to Nand Flash/r/n");
#endif
printf("[y] Download YAFFS2 Image to Nand Flash/r/n");
printf("[g] Download to SDRAM and Run /r/n");
printf("[d] Download Linux Kernel to SDRAM and RUN/r/n");
printf("[f] Format the Nand Flash/r/n");
printf("[l] Low-level Format the entire Nand Flash/r/n");
printf("[s] Set the boot parameters/r/n");
printf("[b] Boot the system/r/n");
printf("[r] Reboot U-Boot/r/n");
printf("[q] Quit from menu/r/n");
printf("Enter your selection: ");
}
void menu_shell(void)
{
char c;
char cmd_buf[200];
char *p = NULL;
unsigned long size;
unsigned long offset;
struct mtd_info *mtd = &nand_info[nand_curr_device];
while (1)
{
main_menu_usage();
c = awaitkey(-1, NULL);
printf("%c/n", c);
switch (c)
{
case 'u':
{
strcpy(cmd_buf, "usbslave 1 0x3000a000; nand erase 0x0; nand write 0x3000a000 0x0 0x60000");
run_command(cmd_buf, 0);
break;
}
case 'n':
{
if (isNORFlash())
{
strcpy(cmd_buf, "usbslave 1 0x3000a000; protect off all; erase 0 5FFFF; cp.b 0x3000a000 0 $(filesize)");
run_command(cmd_buf, 0);
}
break;
}
case 'e':
{
strcpy(cmd_buf, "usbslave 1 0x3000a000; nand erase 80000 80000; nand write 0x3000a000 80000 80000 ");
run_command(cmd_buf, 0);
break;
}
case 'k':
{
strcpy(cmd_buf, "usbslave 1 0x3000a000; nand erase 0x100000 0x300000 ; nand write 0x3000a0000 x100000 0x300000");
run_command(cmd_buf, 0);
break;
}
#if 0
case 'j':
{
strcpy(cmd_buf, "usbslave 1 0x30008000; nand erase jffs2; nand write.jffs2 0x30008000 jffs2 $(filesize)");
run_command(cmd_buf, 0);
break;
}
#endif
case 'y':
{
strcpy(cmd_buf, "usbslave 1 0x3000a000; nand erase 0x400000 0xFC00000; nand write.yaffs2 0x3000a000 0x400000 $(filesize)");
run_command(cmd_buf, 0);
break;
}
case 'g':
{
extern volatile U32 downloadAddress;
extern int download_run;
download_run = 1;
strcpy(cmd_buf, "usbslave 1");
run_command(cmd_buf, 0);
download_run = 0;
sprintf(cmd_buf, "go %x", downloadAddress);
run_command(cmd_buf, 0);
break;
}
case 'd':
{
strcpy(cmd_buf, "usbslave 1 0x3000a000;bootm 0x3000a000");
run_command(cmd_buf, 0);
}
case 'b':
{
printf("Booting Linux Nand Flash/n");
strcpy(cmd_buf, "nand read.jffs2 0x3000a000 0x100000 0x300000; bootm 0x3000a000");
run_command(cmd_buf, 0);
break;
}
case 'f':
{
strcpy(cmd_buf, "nand erase ");
printf("Start address: ");
readline(NULL);
strcat(cmd_buf, console_buffer);
printf("Size(eg. 4000000, 0x4000000, 64m and so on): ");
readline(NULL);
p = console_buffer;
size = memsize_parse2(p, &p);
sprintf(console_buffer, " %x", size);
strcat(cmd_buf, console_buffer);
run_command(cmd_buf, 0);
break;
}
case 's':
{
param_menu_shell();
break;
}
case 'l':
{
printf("Warning : the whole nand flash will be erased ,press y to erase ,any other key to return!");
c = awaitkey(-1, NULL);
if(c=='y')
{
strcpy(cmd_buf, "nand scrub");
run_command(cmd_buf, 0);
}
break;
}
case 'r':
{
strcpy(cmd_buf, "reset");
run_command(cmd_buf, 0);
break;
}
case 'q':
{
return;
break;
}
}
}
}
int do_menu (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
menu_shell();
return 0;
}
U_BOOT_CMD(
menu, 3, 0, do_menu,
"menu - display a menu, to select the items to do something/n",
" - display a menu, to select the items to do something"
);

复制代码

修改当前目录Makefile
gedit common/Makefile

// 在155行添加如下语句
COBJS-y += cmd_menu.o

为了一启动LT2440就执行菜单命令，需要在开机的过程中执行menu命令，做如下修改

# gedit common/main.c

// 在439行添加如下语句
run_command("menu", 0);

重新编译u-boot，u-boot就支持menu菜单了，运行情况如下：

U-Boot 2010.03 (12鏈?09 2010 - 11:53:28)
DRAM:  64 MB
## Unknown FLASH on Bank 1 - Size = 0x00000000 = 0 MB
Flash:  0 kB
NAND:  256 MiB
In: serial
Out: serial
Err: serial
Net: dm9000
dm9000 i/o: 0x18000300, id: 0x90000a46
DM9000: running in 16 bit mode
MAC: 08:00:3e:26:0a:5b
#####    LT2440 U-Boot -2010.03                #####
#####    Welcome to Embeded World             #####
#####                      designed by: LuTong  #####
#####                      www.lt-net.cn       #####
Download u-boot or STEPLDR.nb1 to Nand Flash
[e] Download e-boot to Nand Flash
[k] Download Linux Kernel uImage to Nand Flash
[y] Download YAFFS2 Image to Nand Flash
[g] Download to SDRAM and Run
[d] Download Linux Kernel to SDRAM and RUN
[f] Format the Nand Flash
[l] Low-level Format the entire Nand Flash
Set the boot parameters
Boot the system
[r] Reboot U-Boot
[q] Quit from menu
Enter your selection:

证明添加一键式菜单成功

下接：u-boot-2010.03在LT2440上的移植详解 (九)