[U-Boot] [PATCH 1/3] Revert "ARM: imx6: Disable DDR DRAM calibration DHCOM i.MX6 PDK"

[Stefano Babic]

On 05/07/2018 09:23, lzenz at dh-electronics.de wrote:
> From: Ludwig Zenz <lzenz at dh-electronics.de>
> 
> This reverts commit a637fe6f27fd4c19ef9f43a5f871c244581422ac.
> 
> The DDR DRAM calibration was enhanced by write leveling correction code.
> It can be used with T-topology now.
> 
> Signed-off-by: Ludwig Zenz <lzenz at dh-electronics.de>
> ---
>  board/dhelectronics/dh_imx6/dh_imx6_spl.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/board/dhelectronics/dh_imx6/dh_imx6_spl.c b/board/dhelectronics/dh_imx6/dh_imx6_spl.c
> index dffe4eb..beda389 100644
> --- a/board/dhelectronics/dh_imx6/dh_imx6_spl.c
> +++ b/board/dhelectronics/dh_imx6/dh_imx6_spl.c
> @@ -384,6 +384,10 @@ void board_init_f(ulong dummy)
>  				  &dhcom6sdl_grp_ioregs);
>  	mx6_dram_cfg(&dhcom_ddr_info, &dhcom_mmdc_calib, &dhcom_mem_ddr);
>  
> +	/* Perform DDR DRAM calibration */
> +	udelay(100);
> +	mmdc_do_dqs_calibration(&dhcom_ddr_info);
> +
>  	/* Clear the BSS. */
>  	memset(__bss_start, 0, __bss_end - __bss_start);
>  
> 

Applied to u-boot-imx, thanks !

Best regards,
Stefano Babic

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