迅为IMX6Q开发板非设备树uboot-修改默认环境变量

{

p = getenv("bootsystem");

if (NULL == p) {

printf("*** Warning use default bootsystem:android ***\n");

p = "android";

setenv("bootsystem", (char *)p);

saveenv();

}

printf("Boot system :%s\n", p);

if(!strcmp(p, "android"))

{

boot_system_flags = 0;

}

else if(!strcmp(p, "qt"))

{

boot_system_flags = 1;

}

else if(!strcmp(p, "ubuntu"))

{

boot_system_flags = 2;

}

p = getenv("lcdtype");​​​​​​​

if (NULL == p) {

printf("*** Warning use default lcdtype:9.7 ***\n");

p = "9.7";

setenv("lcdtype", (char *)p);

saveenv();

}

printf("LCD type:%s\n", p);

if(!strcmp(p, "9.7"))

{

lcd_type = 0;

//sprintf(displayArgs, "video=mxcfb0:dev=ldb,LDB-XGA,bpp=32 video=mxcfb1:off

video=mxcfb2:off fbmem=30M");

sprintf(displayArgs, "video=mxcfb0:dev=ldb,LDB-XGA,if=RGB666,bpp=32 ldb=sin1

video=mxcfb1:dev=hdmi,1920x1080M@60,if=RGB24 video=mxcfb2:off fbmem=48M");

}

else if(!strcmp(p, "7.0"))

{

lcd_type = 1;

//sprintf(displayArgs, "video=mxcfb0:dev=ldb,LDB-7inch,bpp=32 video=mxcfb1:off

video=mxcfb2:off fbmem=30M");

sprintf(displayArgs, "video=mxcfb0:dev=ldb,LDB-7inch,if=RGB666,bpp=32 ldb=sin1

video=mxcfb1:dev=hdmi,1920x1080M@60,if=RGB24 video=mxcfb2:off fbmem=48M");

}

else if(!strcmp(p, "4.3"))

{

lcd_type = 2;

//sprintf(displayArgs, "video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:off

video=mxcfb2:off fbmem=10M");

sprintf(displayArgs, "video=mxcfb0:dev=lcd,VGA_480272,if=RGB24,bpp=32

video=mxcfb1:dev=hdmi,1920x1080M@60,if=RGB24 video=mxcfb2:off fbmem=48M");

}

/* add by cym 20170814 */

else if(!strcmp(p, "1024x600"))

{

lcd_type = 3;

//sprintf(displayArgs, "video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:off

video=mxcfb2:off fbmem=10M");

sprintf(displayArgs, "video=mxcfb0:dev=lcd,VGA_1024600,if=RGB24,bpp=32

video=mxcfb1:dev=hdmi,1920x1080M@60,if=RGB24 video=mxcfb2:off fbmem=48M");

}

/* end add */

else if(!strcmp(p, "hdmi"))

{

sprintf(displayArgs, "video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24,bpp=32

video=mxcfb1:off video=mxcfb2:off fbmem=48M");

}

else

{

sprintf(displayArgs, "video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:off

video=mxcfb2:off fbmem=10M");

}

if(0 == boot_system_flags)//Android

{

sprintf(bootargs, "console=ttymxc2,115200 init=/init %s vmalloc=400M

androidboot.console=ttymxc2 androidboot.hardware=freescale

androidboot.serialno=1a0d39d4e3013411", displayArgs);

//

setenv("bootargs", bootargs);

// sprintf(bootargs, "console=NULL init=/init %s vmalloc=400M androidboot.console=NULL

androidboot.hardware=freescale androidboot.serialno=1a0d39d4e3013411", displayArgs);

setenv("bootargs", bootargs);

p = getenv("bootcmd");

if((p == NULL) || (strstr(p, "booti mmc3"))

|| (strstr(p, "mmc dev 3; mmc read 0x10800000 0x800 0x3000; bootm")))

{

setenv("bootcmd", "booti mmc3");

}

}

else if(1 == boot_system_flags)//QT

{

sprintf(bootargs, "console=ttymxc0,115200 %s root=/dev/mmcblk0p1 rootwait",

displayArgs);

setenv("bootargs", bootargs);

p = getenv("bootcmd");

if((p == NULL) || (strstr(p, "booti mmc3"))

|| (strstr(p, "mmc dev 3; mmc read 0x10800000 0x800 0x3000;

bootm")))

{

setenv("bootcmd", "mmc dev 3; mmc read 0x10800000 0x800 0x3000; bootm");

}

}

else if(2 == boot_system_flags)//Ubuntu

{

sprintf(bootargs, "console=ttymxc0,115200 %s root=/dev/mmcblk0p1 rootwait

bootsystem=%s", displayArgs, getenv("bootsystem"));

setenv("bootargs", bootargs);

p = getenv("bootcmd");

if((p == NULL) || (strstr(p, "booti mmc3"))

|| (strstr(p, "mmc dev 3; mmc read 0x10800000 0x800 0x3000;

bootm")))

{

setenv("bootcmd", "mmc dev 3; mmc read 0x10800000 0x800 0x3000; bootm");

}

}

}