We will generate DRAM 4000MT/s as default for i.MX8MP.
So need DRAM PLL to generate 1000Mhz clock to DDR PHY and controller.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
In cases when the same SPL should run on boards with i.MX8MM, that
differ in DDR configuration, it is necessary to try different
parameters and check if the training done by the firmware suceeds or
not.
Therefore we return the DDR training/initialization success to the
upper layer in order to be able to retry with different settings if
necessary.
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Refine the ddr init driver to make it more reusable for different
DDR type(LPDDR4, DDR4 & DDR3L). So we can reduce some redundant
code.
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
