diff options
| author | Ye Li <ye.li@nxp.com> | 2020-09-29 21:55:32 -0700 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2021-01-23 11:30:30 +0100 |
| commit | 7c4f9b37556e8519216c4fd94913c9374d1ab610 (patch) | |
| tree | 8aaf451caa443ce47a6857f74a909318db0e123e /drivers/ddr/imx/imx8m | |
| parent | 846b77e7df4b0c24ed9f3bbc3c1d88aa03265f7c (diff) | |
imx: ddr: imx8m: Move selfref_en after DDR scrub
When doing DDR scrub, the DDR may enter into self refresh if the
selfref_en is enabled before DDR scrub. This will cause scrub
can't complete that SBRSTAT.scrub_done won't be set.
Since the selfref_en can be programmed during the course of
normal operation, move it after DDR scrub
Signed-off-by: Ye Li <ye.li@nxp.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Diffstat (limited to 'drivers/ddr/imx/imx8m')
| -rw-r--r-- | drivers/ddr/imx/imx8m/ddr_init.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/ddr/imx/imx8m/ddr_init.c b/drivers/ddr/imx/imx8m/ddr_init.c index 99a67edfb0..b70bcc383f 100644 --- a/drivers/ddr/imx/imx8m/ddr_init.c +++ b/drivers/ddr/imx/imx8m/ddr_init.c @@ -235,8 +235,6 @@ int ddr_init(struct dram_timing_info *dram_timing) /* Step26: Set back register in Step4 to the original values if desired */ reg32_write(DDRC_RFSHCTL3(0), 0x0000000); - /* enable selfref_en by default */ - setbits_le32(DDRC_PWRCTL(0), 0x1); /* enable port 0 */ reg32_write(DDRC_PCTRL_0(0), 0x00000001); @@ -244,6 +242,9 @@ int ddr_init(struct dram_timing_info *dram_timing) board_dram_ecc_scrub(); + /* enable selfref_en by default */ + setbits_le32(DDRC_PWRCTL(0), 0x1); + /* save the dram timing config into memory */ dram_config_save(dram_timing, CONFIG_SAVED_DRAM_TIMING_BASE); |