I work with specific board with MPC8260A (HiP4 Rev 14, Mask B.1 4K25A) and 128MB SDRAM (MT48LC32M16A2 ). I try to configure MODCK_H and I see following. When I set MODCK_H = 5 SDRAM is working, but in any other case I get many SDRAM errors. Why is this happening?
There are plenty of ways to configure MODCK_H listed in the MPC8260AEC document.
I can not configure MODCK_L, it usually has 111 value.
My SDRAM has input clock 33.333 MHz.
MPC8260 Clock Configuration
- Bus-to-Core Mult 3x, VCO Div 2, 60x Bus Freq 33-100, Core Freq 100-300
- dfbrg 0, corecnf 0x08, busdf 3, cpmdf 1, plldf 0, pllmf 1, pcidf 3
- vco_out 133332000, scc_clk 33333000, brg_clk 33333000
- cpu_clk 99999000, cpm_clk 66666000, bus_clk 33333000
CPU: MPC8260 (HiP4 Rev 14, Mask B.1 4K25A) at 99.999 MHz