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ARM: imx: vining2000: Enable DDR DRAM calibration

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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>
This commit is contained in:
Marek Vasut 2019-11-26 09:39:09 +01:00 • committed by Stefano Babic
parent 7d84f4469f
commit 5b97abab55
2 changed files with 6 additions and 0 deletions
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5
board/softing/vining_2000/vining_2000.c
View file

@ -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)

1
configs/vining_2000_defconfig
View file

@ -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