ARM: imx: vining2000: Enable DDR DRAM calibration

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>

diff --git a/board/softing/vining_2000/vining_2000.c b/board/softing/vining_2000/vining_2000.c
index 9ac17f78e739209f9663c51e29fc0e3da890ef73..c6aee4ee2b089da270073f915ebd97f1930bd58a 100644 (file)
--- a/board/softing/vining_2000/vining_2000.c
+++ b/board/softing/vining_2000/vining_2000.c
@@ -587,6 +587,11 @@ 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 4f9f5381894e77b3269ea2e3e697ee78a7850e52..512c15baf800baae6931cdf51136df44101f639e 100644 (file)
--- 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