u-boot之开机logo篇

来源：互联网发布：工程学六零数据库编辑：程序博客网时间：2024/04/28 02:08

添加开机logo文件

主要思路是将logo改变成二进制文件、下载进nandflash中。在其中添加一个分区，作为bootlogo分区。只要改动文件时cmd_fastboot.c main.c cmd_mov.c 和smdkv210single.c 三个文件

目前状况是分区可以添加，下载进去，但是logo下载进去就会黑屏。

Lcd 驱动

Lcd_init(){

1 设置lcd_framebuffer->lcdbase

2 取lcdbase 地址

3 清屏 lcdclear(){1 设置调色板 2 设置背景颜色}

}

取消原来的logo 主要是LCD_tunnon

主要函数文件是：fimdl.c pmic.h pmic_8937.h

logodl_config : unconfig

@$(MKCONFIG) $(@:_config=) arm pxa logodl

@rm -f $(obj)tools/bmp_logo $(obj)tools/easylogo/easylogo

2 logo显示分析

CFG_LCD_FBUFFER 0x28000000

3 main.c

void s5p_lcd_draw_boot_logo(const unsigned char * buf)

{

unsigned long* pBuffer = (unsigned long*)CFG_LCD_FBUFFER;

memcpy((void*)(pBuffer),buf,480*400*4);

printf("buf value is : 0x%lx\n",buf);

}

#ifdef SHOW_BOOT_LOGO

char run_cmd[100];

char *argv[6] = { NULL, "read", "logo", 0xc3ffecdc, CFG_LCD_FBUFFER, NULL};//无

int argc = 5;

ulong rfs_size, addr,size2;

uint start_blk, blkcnt;

uint start_blk2, blkcnt2;

unsigned char* boot_logo;

unsigned char* boot_logo2;

rfs_size = (255*1024);//???80k?? ??750 KB 1500KB ??????

boot_logo = (unsigned char*)malloc(rfs_size);

printf("boot_logo: 0x%lx\n",boot_logo);

start_blk = ((7*1024*1024)/MOVI_BLKSIZE);

blkcnt = rfs_size/MOVI_BLKSIZE + ((rfs_size&(MOVI_BLKSIZE-1)) ? 1 : 0);

//printf("%s bootlogo.. %ld, %ld, %08x ", "reading",start_blk, blkcnt,addr);

sprintf(run_cmd,"mmc %s 0 0x%lx 0x%lx 0x%lx","read",boot_logo, start_blk, blkcnt);

//do_movi(NULL, 0, argc, argv);

run_command(run_cmd,0);

extern void LCD_turnon();

memset((void*)CFG_LCD_FBUFFER, 0xFF, 480*800*4);

//LCD_turnon(0);

// LCD_turnon();

// printf("show boot logo--frank\n");

s5p_lcd_draw_boot_logo(boot_logo);

free(boot_logo);

/***************************????? *****************************************/

size2= (255*1024); //2

boot_logo2 = (unsigned char*)malloc(size2);

// printf("boot_logo2: 0x%lx\n",boot_logo2);//??

start_blk2 = start_blk+blkcnt;//??

blkcnt2 = size2/MOVI_BLKSIZE + ((size2&(MOVI_BLKSIZE-1)) ? 1 : 0);//??

//printf("%s bootlogo second frank!!!!!.. %ld, %ld\n","reading",start_blk2, blkcnt2);

sprintf(run_cmd,"mmc %s 0 0x%lx 0x%lx 0x%lx","read",boot_logo2, start_blk2, blkcnt2);

//do_movi(NULL, 0, argc, argv);

run_command(run_cmd,0);

//boot_logo2 ??

s5p_lcd_draw_boot_logo2(boot_logo2);

free(boot_logo2);

LCD_turnon();

/***************************????? end*****************************************/

#endif

0xe2700000 //看门狗电路的寄存器

ptn 1 name='bootlogo' start=N/A len=N/A (use hard-coded info. (cmd: movi))

二

1 cmd_fastboot.c 中添加分区信息

#ifdef SHOW_BOOT_LOGO //boot logo, zhf

/* bootlogo */

strcpy(ptable[pcount].name, "bootlogo");

ptable[pcount].start = 0;

ptable[pcount].length = 0;

ptable[pcount].flags = FASTBOOT_PTENTRY_FLAGS_USE_MOVI_CMD;

pcount++;

#endif

#if defined(SHOW_BOOT_LOGO)

else if(!strcmp(ptn->name, "bootlogo"))

{

printf("go to download boot logo\n");

strncpy(part,"logo", 7);

argv[4] = length;

sprintf(length, "0x%x",

((size + CFG_FASTBOOT_SDMMC_BLOCKSIZE -1)

/CFG_FASTBOOT_SDMMC_BLOCKSIZE )*CFG_FASTBOOT_SDMMC_BLOCKSIZE);

argc++;

}

2 cmd_movi.c

#ifdef SHOW_BOOT_LOGO

/* for boot logo */

image[6].start_blk = ((7*1024*1024)/MOVI_BLKSIZE);

image[6].used_blk = (2* 1024 * 1024/MOVI_BLKSIZE);

image[6].size = (2* 1024 * 1024);//2M

image[6].attribute = 0x40;

strcpy(image[6].description, "bootlogo");//--frank

printf("logo: %d\n", image[6].start_blk);

#endif

#if defined(SHOW_BOOT_LOGO)

case 'l':

if(argc != 5)

goto usage;

attribute = 0x40;

addr = simple_strtoul(argv[3], NULL, 16);

break;

#endif

#if defined(SHOW_BOOT_LOGO)

if(attribute == 0x40)

{

rfs_size = simple_strtoul(argv[4], NULL, 16);

printf(" \n ");

printf(" \n");

printf("frank argv[4]:%x, rfs_size:%x\n",argv[4],rfs_size);

for (i=0, image = raw_area_control.image; i<15; i++) {

if (image[i].attribute == attribute)

break;

}

start_blk = image[i].start_blk;

blkcnt = rfs_size/MOVI_BLKSIZE +

((rfs_size&(MOVI_BLKSIZE-1)) ? 1 : 0);

image[i].used_blk = blkcnt;

printf("%s bootlogo.. %ld, %ld, %08x ", rw ? "writing":"reading",

start_blk, blkcnt,addr);

sprintf(run_cmd,"mmc %s 0 0x%lx 0x%lx 0x%lx",

rw ? "write":"read",

addr, start_blk, blkcnt);

run_command(run_cmd, 0);

printf("completed\n");

return 1;

}

#endif

3 main.c

#ifdef SHOW_BOOT_LOGO

#include <movi.h>

void s5p_lcd_draw_boot_logo(const unsigned char * buf)

{

unsigned long* pBuffer = (unsigned long*)CFG_LCD_FBUFFER;

memcpy((void*)(pBuffer),buf,480*400*4);

printf("buf value is : 0x%lx\n",buf);

}

void s5p_lcd_draw_boot_logo2(const unsigned char * buf)

{

unsigned long* pBuffer = (unsigned long*)CFG_LCD_FBUFFER;

memcpy((void*)(pBuffer+480*400),buf,480*400*4);

}

#endif

ifdef SHOW_BOOT_LOGO

char run_cmd[100];

char *argv[6] = { NULL, "read", "logo", 0xc3ffecdc, CFG_LCD_FBUFFER, NULL};//无所谓的

int argc = 5;

ulong rfs_size, addr,size2;

uint start_blk, blkcnt;

uint start_blk2, blkcnt2;

unsigned char* boot_logo;

unsigned char* boot_logo2;

rfs_size = (255*1024);//???80k?? ??750 KB 1500KB ??????

boot_logo = (unsigned char*)malloc(rfs_size);

printf("boot_logo: 0x%lx\n",boot_logo);

start_blk = ((7*1024*1024)/MOVI_BLKSIZE);

blkcnt = rfs_size/MOVI_BLKSIZE + ((rfs_size&(MOVI_BLKSIZE-1)) ? 1 : 0);

printf("%s bootlogo.. %ld, %ld, %08x ", "reading",start_blk, blkcnt,addr);

sprintf(run_cmd,"mmc %s 0 0x%lx 0x%lx 0x%lx","read",boot_logo, start_blk, blkcnt);

//do_movi(NULL, 0, argc, argv);

LCD_turnon();

run_command(run_cmd,0);

//extern void LCD_turnon();

memset((void*)CFG_LCD_FBUFFER, 0xFF, 480*800*4);

printf("show boot logo--frank\n");

s5p_lcd_draw_boot_logo(boot_logo);

free(boot_logo);

// LCD_turnon();

#endif

<pmic_8973.h>

<fmid.c>

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