Vitaly,
On 10/16/2013 07:53 AM, Виталий Андрющенко wrote:
Hi, i have a problem while porting u-boot to my own-developed hardware with P4080 and fixed DDR3 memory (not DIMM's).
Does anybody tested code for Freescale with fixed memory on real hardware?
It seems that the code does not initialize a lot of registers (for example DDR_WRLVL_CNTL_2 and others) in function fixed_sdram(). But it does this in function fsl_ddr_sdram() which i scalled if we have DIMMs. Currently my u-boot hangs while testing upper regions of memory.
PS. I have tested the memory with Freescale's proprietary tests (called DDR Validation) that use USBTAP and the test shows OK.
Can anybody give me a suggestion? Thank you.
The fixed parameters are very board specific. If you have successfully validate DDR using Freescale tools, you can take those register values and hard-code them into ddr.c. If you have some non-zero registers which were not set, you want to add them, too.
York