Merge tag 'u-boot-imx-20200918' of https://gitlab.denx.de/u-boot/custodians/u-boot-imx

----------------------------------------------------------------
Fixes for 2020.10
-----------------

- Toradex boards
- mx6qsabrelite: fix env offset
- esdhc_imx: waiting for clock instead of sleep
- dyn RAM calibration for entry point i.MX6

Travis: https://travis-ci.org/github/sbabic/u-boot-imx/builds/728274602

1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/mmc/fsl_esdhc_imx.c b/drivers/mmc/fsl_esdhc_imx.c
index 788677984bf..0c866b168f9 100644
--- a/drivers/mmc/fsl_esdhc_imx.c
+++ b/drivers/mmc/fsl_esdhc_imx.c
@@ -36,6 +36,7 @@
 #include <dt-structs.h>
 #include <mapmem.h>
 #include <dm/ofnode.h>
+#include <linux/iopoll.h>
 
 #if !CONFIG_IS_ENABLED(BLK)
 #include "mmc_private.h"
@@ -631,6 +632,8 @@ static void set_sysctl(struct fsl_esdhc_priv *priv, struct mmc *mmc, uint clock)
 {
 	struct fsl_esdhc *regs = priv->esdhc_regs;
 	int div = 1;
+	u32 tmp;
+	int ret;
 #ifdef ARCH_MXC
 #ifdef CONFIG_MX53
 	/* For i.MX53 eSDHCv3, SYSCTL.SDCLKFS may not be set to 0. */
@@ -664,7 +667,9 @@ static void set_sysctl(struct fsl_esdhc_priv *priv, struct mmc *mmc, uint clock)
 
 	esdhc_clrsetbits32(&regs->sysctl, SYSCTL_CLOCK_MASK, clk);
 
-	udelay(10000);
+	ret = readx_poll_timeout(esdhc_read32, &regs->prsstat, tmp, tmp & PRSSTAT_SDSTB, 100);
+	if (ret)
+		pr_warn("fsl_esdhc_imx: Internal clock never stabilised.\n");
 
 #ifdef CONFIG_FSL_USDHC
 	esdhc_setbits32(&regs->vendorspec, VENDORSPEC_PEREN | VENDORSPEC_CKEN);