Question

我正在尝试使用预构建的图像启动imxdl sabresd板，但是连接到板的LCD却不显示任何内容。我该如何设置环境？

我遵循了标准文档。其中说：添加

video = mxcfb0：dev = ldb，bpp = 32

到内核命令行因此，我尝试：编辑器编辑：setenv bootargs console = $ {控制台}，$ {baudrate} $ {smp} root = $ {mmcroot} video = mxcfb0：dev = ldb，bpp = 32。

u-boot环境设置为

baudrate=115200
boot_fdt=try
bootcmd=mmc dev ${mmcdev};if mmc rescan; then if run loadbootscript; then run bootscript; else if run loadimage; then run mmcboot; else run ni
bootcmd_mfg=run mfgtool_args;bootz ${loadaddr} ${initrd_addr} ${fdt_addr};
bootdelay=1
bootscript=echo Running bootscript from mmc ...; source
console=ttymxc0
emmcdev=2
epdc_waveform=epdc_splash.bin
ethact=FEC
ethaddr=00:04:9f:03:cf:03
ethprime=FEC
fdt_addr=0x18000000
fdt_file=imx6dl-sabresd.dtb
fdt_high=0xffffffff
image=zImage
initrd_addr=0x12C00000
initrd_high=0xffffffff
ip_dyn=yes
loadaddr=0x12000000
loadbootscript=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};
loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}
loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}
mfgtool_args=setenv bootargs console=ttymxc0,115200 rdinit=/linuxrc g_mass_storage.stall=0 g_mass_storage.removable=1 g_mass_storage.idVendor 
mmcargs=setenv bootargs console=${console},${baudrate} ${smp} root=${mmcroot} video=mxcfb0:dev=ldb,bpp=32
mmcautodetect=yes
mmcboot=echo Booting from mmc ...; run mmcargs; if test ${boot_fdt} = yes || test ${boot_fdt} = try; then if run loadfdt; then bootz ${loadad;
mmcdev=2
mmcpart=1
mmcroot=/dev/mmcblk3p2 rootwait rw
netargs=setenv bootargs console=${console},${baudrate} ${smp} root=/dev/nfs ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp
netboot=echo Booting from net ...; run netargs; if test ${ip_dyn} = yes; then setenv get_cmd dhcp; else setenv get_cmd tftp; fi; ${get_cmd} $;
script=boot.scr
update_emmc_firmware=if test ${ip_dyn} = yes; then setenv get_cmd dhcp; else setenv get_cmd tftp; fi; if ${get_cmd} ${update_sd_firmware_filei
update_sd_firmware=if test ${ip_dyn} = yes; then setenv get_cmd dhcp; else setenv get_cmd tftp; fi; if mmc dev ${mmcdev}; then if ${get_cmd} i

我希望在内核启动时，“ embeddedlogo”会在LCD上弹出。然而，液晶显示器仍然是空白的，背光灯在板子启动后才打开。我还要为setenv / editenv做哪些其他设置？

将LCD与Imx6dl Saber SD

u-boot环境设置为

0 个答案: