I have a question about the LCD_RS pin on the i.MX28.
If the ENABLE_PIN_BOOT_CHECK is blown and LCD_RS is NOT pulled down, and is connected to an LCD(LCD_DOTCLK), is the boot mode guaranteed to be determined by the OTP eFuse bits in ROM0 (HW_OCOTP_ROM0:0x8002C1A0:31:24)? There is not a pull-up on LCD_RS either.
We have a module with a i.MX28 chip that is used in two different base-boards. One base-board pulls down LCD_RS and the other does not. Both base-boards use this pin for LCD_DOTCLK for it's display. Both of these configurations are reading the OTP eFuse bits, which is the way we expect them both to operate. I need to know if the base-board that doesn't pull down LCD_RS is guaranteed? The reason we need this to operate without a pull down is for cross-base-board compatibility. We have thousands of boards without a pull down on LCD_RS that originally did not need the ENABLE_PIN_BOOT_CHECK to be blown, but now require it.