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| author | Francesco Dolcini <francesco.dolcini@toradex.com> | 2021-08-31 11:46:06 +0200 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2021-10-19 10:51:39 +0200 |
| commit | a591e75fbc16d4b4dd26758fc6d3bdb6bd6551cb (patch) | |
| tree | 646af0176a8343c57026ef8888b5eefbd24ff20f | |
| parent | 1194d1711781fe30bf664c1bf2d559ffa76ccc7e (diff) | |
| download | u-boot-a591e75fbc16d4b4dd26758fc6d3bdb6bd6551cb.zip u-boot-a591e75fbc16d4b4dd26758fc6d3bdb6bd6551cb.tar.gz u-boot-a591e75fbc16d4b4dd26758fc6d3bdb6bd6551cb.tar.bz2 | |
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 | 1 |
2 files changed, 20 insertions, 0 deletions
diff --git a/board/toradex/apalis_imx6/apalis_imx6.c b/board/toradex/apalis_imx6/apalis_imx6.c index f4cd28d..25a4cd9 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 52f2539..329f38d 100644 --- a/configs/apalis_imx6_defconfig +++ b/configs/apalis_imx6_defconfig @@ -10,6 +10,7 @@ CONFIG_SYS_MEMTEST_END=0x10010000 CONFIG_ENV_SIZE=0x2000 CONFIG_ENV_OFFSET=0xFFFFDE00 CONFIG_MX6Q=y +CONFIG_MX6_DDRCAL=y CONFIG_TARGET_APALIS_IMX6=y CONFIG_SYS_I2C_MXC_I2C1=y CONFIG_SYS_I2C_MXC_I2C2=y |