Hello Everyone,
In my project is base on I.MX7ULP and porting SDRAM LPDDR2 on my project EVB and BSP :imx-4.9.51-8mq_ga.
(Original BSP SDRAM setting in is for LPDDR3)
Now I already porting the setting of DCD table in imximage.cfg file.But when I power on my EVB the u-boot will stuck at "DRAM:" line and then no log anymore .
log show as below:
---------------------------------------------------------------------------------------------------------------------------------
U-Boot 2017.03-imx_v2017.03_4.9.51_imx8m_ga+g2537522 (Jul 04 2018 - 14:27:51 +0800)
CPU: Freescale i.MX7ULP rev2.0 at 500 MHz
Reset cause: POR
Boot mode: Dual boot
Model: NXP i.MX7ULP EVK
DRAM:
----------------------------------------------------------------------------------------------------------------------------------
And then I trace the u-boot source code ,u-boot will stuck at the command : "size += gd->bd->bi_dram[i].size;"
in "static int show_dram_config(void)" function of the "board_f.c" file .
u-boot source code show as below:
==========================================================================
static int show_dram_config(void)
{
unsigned long long size;
#ifdef CONFIG_NR_DRAM_BANKS
int i;
debug("\nRAM Configuration:\n");
for (i = size = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
size += gd->bd->bi_dram[i].size;
debug("Bank #%d: %llx ", i,
(unsigned long long)(gd->bd->bi_dram[i].start));
#ifdef DEBUG
print_size(gd->bd->bi_dram[i].size, "\n");
#endif
}
debug("\nDRAM: ");
#else
size = gd->ram_size;
#endif
print_size(size, "");
board_add_ram_info(0);
putc('\n');
return 0;
}
==========================================================================
It's seem like that execute "gd->bd->bi_dram[i].size;" operation will cause the error.
Does anyone can help me whether I porting the imximage.cfg (for change SDRAM to LPDDR2 on my EVB )incorrect ?
Or other reason cause this error ?
Thanks~
