[U-Boot] imx: add i.MX8MQ EVK support

[Troy Kisky]

Hi Peng

In spl.c you have

_________
static void spl_dram_init(void)
{
	/* ddr init */
	if ((get_cpu_rev() & 0xfff) == CHIP_REV_2_1)
		ddr_init(&dram_timing);
	else
		ddr_init(&dram_timing_b0);
}

_________

Could you explain why this is dependent on chip rev ?

It it just the extra frequency in lpddr4_timing.c ?

__________
	{
		/* P1 100mts 1D */
		.drate = 100,
		.fw_type = FW_1D_IMAGE,
		.fsp_cfg = lpddr4_fsp2_cfg,
		.fsp_cfg_num = ARRAY_SIZE(lpddr4_fsp2_cfg),
	},
_________


Will other i.MX8MQ boards also need this check ?


Thanks
Troy