Hi Marek,
On Mon, Dec 11, 2017 at 1:19 PM, Marek Vasut marex@denx.de wrote:
The DDR DRAM calibration doesn't work on T-topology sometimes, so disable it.
Signed-off-by: Marek Vasut marex@denx.de Cc: Stefano Babic sbabic@denx.de
board/dhelectronics/dh_imx6/dh_imx6_spl.c | 4 ---- 1 file changed, 4 deletions(-)
diff --git a/board/dhelectronics/dh_imx6/dh_imx6_spl.c b/board/dhelectronics/dh_imx6/dh_imx6_spl.c index bb98f39f02..57ae7f15ce 100644 --- a/board/dhelectronics/dh_imx6/dh_imx6_spl.c +++ b/board/dhelectronics/dh_imx6/dh_imx6_spl.c @@ -387,10 +387,6 @@ 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);
I also observed mmdc_do_dqs_calibration() failures and after applying this patch from Eric they were gone: https://lists.denx.de/pipermail/u-boot/2016-November/271596.html
Does this help to solve the mmdc_do_dqs_calibration() on your case too?