Enable DRAM calibration in SPL to improve behavior of the board in edge conditions of the thermal envelope of the board and make it even more stable.
Signed-off-by: Marek Vasut marex@denx.de Cc: Fabio Estevam fabio.estevam@nxp.com Cc: Silvio Fricke silvio.fricke@softing.com Cc: Stefano Babic sbabic@denx.de --- board/softing/vining_2000/vining_2000.c | 5 +++++ configs/vining_2000_defconfig | 1 + 2 files changed, 6 insertions(+)
diff --git a/board/softing/vining_2000/vining_2000.c b/board/softing/vining_2000/vining_2000.c index 086de1eaf5..a745119577 100644 --- a/board/softing/vining_2000/vining_2000.c +++ b/board/softing/vining_2000/vining_2000.c @@ -586,6 +586,11 @@ static void vining2000_spl_dram_init(void)
mx6sx_dram_iocfg(mem_ddr.width, &mx6_ddr_ioregs, &mx6_grp_ioregs); mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr); + + /* Perform DDR DRAM calibration */ + udelay(100); + mmdc_do_write_level_calibration(&sysinfo); + mmdc_do_dqs_calibration(&sysinfo); }
void board_init_f(ulong dummy) diff --git a/configs/vining_2000_defconfig b/configs/vining_2000_defconfig index 4f9f538189..512c15baf8 100644 --- a/configs/vining_2000_defconfig +++ b/configs/vining_2000_defconfig @@ -5,6 +5,7 @@ CONFIG_SPL_GPIO_SUPPORT=y CONFIG_SPL_LIBCOMMON_SUPPORT=y CONFIG_SPL_LIBGENERIC_SUPPORT=y CONFIG_SYS_MALLOC_F_LEN=0x4000 +CONFIG_MX6_DDRCAL=y CONFIG_TARGET_SOFTING_VINING_2000=y CONFIG_SPL_MMC_SUPPORT=y CONFIG_SPL_SERIAL_SUPPORT=y