/********************************************************************* * I.MX6 lcd lvds hdmi bootargs * 声明： * 本文主要是记录I.MX6DL使用到的几种显示屏中的bootargs的参数设置。 * * 2016-1-18 深圳 南山平山村 曾剑锋 ********************************************************************/ 一、参考文章： LCD colors look wrong. Android 4.3 with18-bit Parallel RGB on IMX6S. https://community.freescale.com/thread/327695 Kernel parameters https://boundarydevices.com/configuring-i-mx6-machines-different-screens-nitrogen6x-sabre-lite/ 二、bootargs配置： 1. 默认配置 //console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:off video=mxcfb2:off fbmem=10M fb0base=0x27b00000 vmalloc=400M androidboot.console=ttymxc0 androidboot.hardware=freescale 2. 使用lcd作为显示输出 //"bootargs=console=ttymxc0,115200 init=/init video=mxcfb0:dev=lcd,CLAA-WVGA@60,bpp=32,if=RGB24 video=mxcfb1:off fbmem=30M fb0base=0x27b00000 vmalloc=400M androidboot.console=ttymxc0 androidboot.hardware=freescale\0" 3. 使用mipi作为显示输出 //"bootargs=console=ttymxc0,115200 init=/init video=mxcfb0:dev=mipi_dsi,TRULY-WVGA,if=RGB24 video=mxcfb1:off video=mxcfb2:off fbmem=30M fb0base=0x27b00000 vmalloc=400M androidboot.console=ttymxc0 androidboot.hardware=freescale\0" \ 4. 使用lvds作为显示输出 //"bootargs=console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:off video=mxcfb2:off fbmem=30M fb0base=0x27b00000 vmalloc=400M androidboot.console=ttymxc0 androidboot.hardware=freescale\0" \ 5. 使用lvds+hdmi显示输出 //"bootargs=console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,800x480M@60,if=RGB666,bpp=32 video=mxcfb1:dev=hdmi,1920x1080M@60,if=RGB24,bpp=32 video=mxcfb2:off ldb=dul1 fbmem=10M,30M vmalloc=400M androidboot.console=ttymxc0 androidboot.hardware=freescale\0" \ //"bootargs=console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,LDB-XGA,bpp=32 video=mxcfb1:dev=hdmi,640x480M@60,if=RGB24,bpp=32 video=mxcfb2:off ldb=dul1 fbmem=10M,30M vmalloc=400M androidboot.console=ttymxc0 androidboot.hardware=freescale\0" \ 6. use for lvds with hdmi 800*600 //"bootargs=console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,800x600M@60,if=RGB666,bpp=32 video=mxcfb1:dev=hdmi,800x600M@60,if=RGB24,bpp=32 video=mxcfb2:off ldb=dul1 fbmem=10M,10M vmalloc=400M androidboot.console=ttymxc0 androidboot.hardware=freescale\0" \ 7. use for lvds with hdmi 1920*1080 //"bootargs=console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,800x480M@60,if=RGB666,bpp=32 video=mxcfb1:dev=hdmi,1920x1080M@60,if=RGB24,bpp=32 video=mxcfb2:off ldb=dul1 fbmem=10M,30M vmalloc=400M androidboot.console=ttymxc0 androidboot.hardware=freescale\0" \ 8. use for two lvds display //"bootargs=console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32,LDB-XGA ldb=dul0 video=mxcfb1:dev=ldb,bpp=32,LDB-XGA video=mxcfb2:off fbmem=10M fb0base=0x27b00000 vmalloc=400M androidboot.console=ttymxc0 androidboot.hardware=freescale\0" \ 9. use for 24bit lvds display //"bootargs=console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,LDB-XGA,if=RGB24,fbpix=RGB32 video=mxcfb1:off video=mxcfb2:off fbmem=40M fb0base=0x27b00000 vmalloc=400M androidboot.console=ttymxc0 androidboot.hardware=freescale\0" \
10. HDMI
setenv bootargs 'console=ttymxc0,115200 androidboot.console=ttymxc0 consoleblank=0 vmalloc=256M init=/init video=mxcfb0:dev=hdmi,1920x1080M@60,bpp=32 video=mxcfb1:off video=mxcfb2:off video=mxcfb3:off androidboot.hardware=freescale cma=384M androidboot.selinux=disabled'
