Re: [U-Boot] [PATCH] ARM: imx6: Disable DDR DRAM calibration DHCOM i.MX6 PDK

On 11/12/2017 16:19, Marek Vasut 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);
• /* Clear the BSS. */ memset(__bss_start, 0, __bss_end - __bss_start);

Applied to u-boot-imx, thanks !

Best regards, Stefano Babic