diff options
| author | Francesco Dolcini <francesco.dolcini@toradex.com> | 2021-08-20 18:27:07 +0200 |
|---|---|---|
| committer | Francesco Dolcini <francesco.dolcini@toradex.com> | 2021-08-20 18:27:07 +0200 |
| commit | eb6c58cb014022d45a880c1eb9761e5d6ce623c0 (patch) | |
| tree | 901b9a72c3c4f08a94231e9425ac6a9e42d86278 | |
| parent | 240223cd41a776d1ddba96ac7252aeb4b2ebdb90 (diff) | |
apalis-imx6: use dynamic DDR calibration
Enable dynamic DDR calibration to have a reliable behavior on edge
temperatures conditions.
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
| -rw-r--r-- | board/toradex/apalis_imx6/apalis_imx6.c | 19 | ||||
| -rw-r--r-- | configs/apalis_imx6_defconfig | 5 | ||||
| -rw-r--r-- | configs/apalis_imx6_tezi_defconfig | 1 |
3 files changed, 21 insertions, 4 deletions
diff --git a/board/toradex/apalis_imx6/apalis_imx6.c b/board/toradex/apalis_imx6/apalis_imx6.c index 40c71adf51..aadf2e52b1 100644 --- a/board/toradex/apalis_imx6/apalis_imx6.c +++ b/board/toradex/apalis_imx6/apalis_imx6.c @@ -1076,6 +1076,24 @@ static void ddr_init(int *table, int size) writel(table[2 * i + 1], table[2 * i]); } +/* Perform DDR DRAM calibration */ +static void spl_dram_perform_cal(void) +{ +#ifdef CONFIG_MX6_DDRCAL + int err; + struct mx6_ddr_sysinfo ddr_sysinfo = { + .dsize = 2, + }; + + err = mmdc_do_write_level_calibration(&ddr_sysinfo); + if (err) + printf("error %d from write level calibration\n", err); + err = mmdc_do_dqs_calibration(&ddr_sysinfo); + if (err) + printf("error %d from dqs calibration\n", err); +#endif +} + static void spl_dram_init(void) { int minc, maxc; @@ -1094,6 +1112,7 @@ static void spl_dram_init(void) break; }; udelay(100); + spl_dram_perform_cal(); } void board_init_f(ulong dummy) diff --git a/configs/apalis_imx6_defconfig b/configs/apalis_imx6_defconfig index c6569b51fd..02167536d4 100644 --- a/configs/apalis_imx6_defconfig +++ b/configs/apalis_imx6_defconfig @@ -6,6 +6,7 @@ CONFIG_SPL_LIBCOMMON_SUPPORT=y CONFIG_SPL_LIBGENERIC_SUPPORT=y CONFIG_ENV_SIZE=0x2000 CONFIG_ENV_OFFSET=0xFFFFDE00 +CONFIG_MX6_DDRCAL=y CONFIG_TARGET_APALIS_IMX6=y CONFIG_DM_GPIO=y CONFIG_SPL_TEXT_BASE=0x00908000 @@ -20,7 +21,6 @@ CONFIG_FIT=y CONFIG_FIT_VERBOSE=y CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/mach-imx/spl_sd.cfg,MX6Q" CONFIG_BOOTDELAY=1 -# CONFIG_CONSOLE_MUX is not set CONFIG_SYS_CONSOLE_IS_IN_ENV=y CONFIG_MISC_INIT_R=y CONFIG_VERSION_VARIABLE=y @@ -53,7 +53,6 @@ CONFIG_CMD_USB=y CONFIG_CMD_USB_SDP=y CONFIG_CMD_USB_MASS_STORAGE=y # CONFIG_CMD_NFS is not set -CONFIG_CMD_BMP=y CONFIG_CMD_BOOTCOUNT=y CONFIG_CMD_CACHE=y CONFIG_CMD_TIME=y @@ -99,8 +98,6 @@ CONFIG_USB_GADGET_PRODUCT_NUM=0x4000 CONFIG_CI_UDC=y CONFIG_USB_GADGET_DOWNLOAD=y CONFIG_USB_HOST_ETHER=y -# CONFIG_VIDEO_BPP8 is not set -# CONFIG_VIDEO_BPP32 is not set CONFIG_SYS_WHITE_ON_BLACK=y CONFIG_FAT_WRITE=y CONFIG_OF_LIBFDT_OVERLAY=y diff --git a/configs/apalis_imx6_tezi_defconfig b/configs/apalis_imx6_tezi_defconfig index 23334ebcb9..188f1b2ea9 100644 --- a/configs/apalis_imx6_tezi_defconfig +++ b/configs/apalis_imx6_tezi_defconfig @@ -6,6 +6,7 @@ CONFIG_SPL_LIBCOMMON_SUPPORT=y CONFIG_SPL_LIBGENERIC_SUPPORT=y CONFIG_ENV_SIZE=0x2000 CONFIG_ENV_OFFSET=0xFFFFDE00 +CONFIG_MX6_DDRCAL=y CONFIG_TARGET_APALIS_IMX6=y CONFIG_DM_GPIO=y # CONFIG_TDX_CFG_BLOCK_USB_GADGET_PID is not set |