I need clarification regarding FlexSPI supported serial clock frequencies in i.MX 8X processor. As far as I could understand FlexSPI clock serialClkFreq is configured by ROM and its frequencies vary from 20 to 200 MHz.
The question is whether serialClkFreq and flexspi0_ipg_clk_sfck/flexspi1_ipg_clk_sfck is the same clock? Based on MCR0 register serial root clock can be divided maximum by 8. Does it mean that the minimum supported frequency is 2.5MHz?