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fsaud
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Registered: ‎08-21-2020

Arm trusted firmware is returning wrong clock dividers for Ethernet on ZynqMPSoC based platform ultrazed-eg-iocc

Hi,

When I call SMC after the boot up by uboot for getting the clock dividers for GEM interface, it returns 0 for the all the clock IDs in the clocks property of GEM interface device tree node. Whereas when I read the the memory mapped register I get 1 and 12 as dividers for those clocks.

I'm curious to know why ATF is returning 0 for GEM interface clocks while it is returning correct dividers for other peripherals like I2C? 

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