From: Yangbo Lu <yangbo.lu@nxp.com>
Date: Tue, 1 Sep 2020 08:58:03 +0000 (+0800)
Subject: mmc: add a hs400_tuning flag
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=8c96880814b23b5e17b5e7d350ea6066dae54bc6;p=u-boot.git

mmc: add a hs400_tuning flag

Some controllers may have difference between HS200 tuning
and HS400 tuning, such as different registers setting,
different procedure, or different errata.

This patch is to add a hs400_tuning flag to identify the
tuning for HS400 mode.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
---

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 0727505304..b75c2bc830 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -1982,7 +1982,9 @@ static int mmc_select_hs400(struct mmc *mmc)
 	mmc_set_clock(mmc, mmc->tran_speed, false);
 
 	/* execute tuning if needed */
+	mmc->hs400_tuning = 1;
 	err = mmc_execute_tuning(mmc, MMC_CMD_SEND_TUNING_BLOCK_HS200);
+	mmc->hs400_tuning = 0;
 	if (err) {
 		debug("tuning failed\n");
 		return err;
diff --git a/include/mmc.h b/include/mmc.h
index 93494d939a..bea1c49151 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -707,6 +707,7 @@ struct mmc {
 				  * accessing the boot partitions
 				  */
 	u32 quirks;
+	u8 hs400_tuning;
 };
 
 struct mmc_hwpart_conf {