Hi, I'm focusing on the LCD interface on my dm6441-based custom board. Kernel version is GIT 2.6.25. Reading out the following registers it seems that pin VCLK should output a square wave. However pin VCLK is fixed at high level!
PINMUX0 = 0x8040001f //Pin multiplexing control 0 PINMUX1 = 0x00050493 //Pin multiplexing control 1 VPSS_CLKCTL = 0x00000018 //VPSS clock control LCD_VMOD = 0x00001003 //Video Mode Register LCD_VIDCTL = 0x00001101 //Video Interface I/O Control Register LCD_DCLKCTL = 0x00000000 //DCLK Control Register VPBE_PCR = 0x00000000 //Peripheral Control Register I'm not sure about the exact cause: are there other registers to be checked out? Is there a hardware problem? am I doing something wrong? Thanks a lot Gabriele
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