diff options
| author | Judith Mendez <jm@ti.com> | 2024-04-18 14:00:59 -0500 |
|---|---|---|
| committer | Andrejs Cainikovs <andrejs.cainikovs@toradex.com> | 2024-05-02 11:47:20 +0200 |
| commit | 7a4b337156751d4ddde6516b079d86eab334778b (patch) | |
| tree | 0016d64a77f8473294484b21844c6e3d5ab3610e | |
| parent | 9e0e3b29a566684b49ae59edeb9f7edf0ed367b7 (diff) | |
mmc: am654_sdhci: Set ENDLL=1 for DDR52 mode
According to the device datasheet [0], ENDLL=1 for
DDR52 mode, so call am654_sdhci_setup_dll() and write
itapdly after since we do not carry out tuning.
[0] https://www.ti.com/lit/ds/symlink/am62p.pdf
Upstream-Status: Backport [a124e31a97cd2963181d3a8a00678998bf9958a2]
Fixes: c964447ea3d6 ("mmc: am654_sdhci: Add support for input tap delay")
Signed-off-by: Judith Mendez <jm@ti.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
| -rw-r--r-- | drivers/mmc/am654_sdhci.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/mmc/am654_sdhci.c b/drivers/mmc/am654_sdhci.c index a0de92edaf..6780478f73 100644 --- a/drivers/mmc/am654_sdhci.c +++ b/drivers/mmc/am654_sdhci.c @@ -289,12 +289,14 @@ static int am654_sdhci_set_ios_post(struct sdhci_host *host) regmap_update_bits(plat->base, PHY_CTRL4, mask, val); - if (mode > UHS_SDR25 && speed >= CLOCK_TOO_SLOW_HZ) { + if ((mode > UHS_SDR25 || mode == MMC_DDR_52) && speed >= CLOCK_TOO_SLOW_HZ) { ret = am654_sdhci_setup_dll(plat, speed); if (ret) return ret; plat->dll_enable = true; + am654_sdhci_write_itapdly(plat, plat->itap_del_sel[mode], + plat->itap_del_ena[mode]); } else { am654_sdhci_setup_delay_chain(plat, mode); plat->dll_enable = false; |