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memtool access IPU_DI0_GENERAL Register fail

Question asked by Apollo Chang on Aug 9, 2016
Latest reply on Aug 9, 2016 by Qiang Li - Mpu Se

Hi jamesbone ,


We has some LVDS Panel pixel not correct issue.

Base on this link

LVDS panel display corruption


We want to use memtool to access  IPU_DI0_GENERAL register of i.MX6Q.

But it always fail. (4.1.15 _2.1.0 and JB4.3)


MY Command


./memtool -32 0x02640000 1


My Uboot setting base on JB4.3

bootargs=console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32

video=mxcfb1:off video=mxcfb2:off fbmem=10M fb0base=0x27b00000 vmalloc=400M


My Uboot setting base on 4.1.15 kernel

mmcargs=setenv bootargs console=${console},${baudrate} root=${mmcroot} video=mxcfb0:dev=ldb


It test in MX6QSabreSD demo board.