From: Judith Mendez <jm@ti.com>
Date: Thu, 18 Apr 2024 19:00:59 +0000 (-0500)
Subject: mmc: am654_sdhci: Set ENDLL=1 for DDR52 mode
X-Git-Url: http://git.dujemihanovic.xyz/login.html?a=commitdiff_plain;h=a124e31a97cd2963181d3a8a00678998bf9958a2;p=u-boot.git

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

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>
---

diff --git a/drivers/mmc/am654_sdhci.c b/drivers/mmc/am654_sdhci.c
index 62007ebd0f..e1047812fa 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;