Fabio Estevam-2 wrote
I meant "different parents for the uart clock"
Fabio, that would make sense why it doesn't work when setting 2014 u-boot CSCDR1 to the value in 2009 u-boot. I can check all the combinations of clock division I want and it's never going to work since the parent is different.
The patch for u-boot 2009.08 states... ------------------ Subject: [PATCH] ENGR00133727: uart outputs messy code when kernel starts on mx51
uart outputs messy code when kernel starts on mx51. Change uart clock to use pll2 as source clock. ------------------
Looks like we never implemented that patch in our 2009 u-boot. Looks like that patch made it to 2014 u-boot.
So I tried setting the uart clock parent to default in u-boot 2014 in arch/arm/cpu/armv7/mx5/lowlevel_init.S, but still the same thing happens.
Any suggestions?
Basically I want kernel 2.6.35 to boot cleanly on the console using u-boot 2014 on an mx51 board.
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