From 48cc6e9507dbb551982d7d926b6ae1b9b99cb92c Mon Sep 17 00:00:00 2001 From: Ludwig Zenz Date: Thu, 5 Jul 2018 09:23:46 +0200 Subject: [PATCH] Revert "ARM: imx6: Disable DDR DRAM calibration DHCOM i.MX6 PDK" This reverts commit e135ac7c3cd919f16792a854de698dc6c2344a5d. The DDR DRAM calibration was enhanced by write leveling correction code. It can be used with T-topology now. Signed-off-by: Ludwig Zenz --- 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 dffe4ebd45..beda38955e 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); -- 2.39.5