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From: Rouven Czerwinski <r.czerwinski@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Subject: [PATCH] mci: imx-esdhc-pbl: initialize fsl_esdhc_host
Date: Thu,  5 Aug 2021 10:26:07 +0200
Message-ID: <20210805082607.1698733-1-r.czerwinski@pengutronix.de> (raw)

Since commit 56ca2c197e71 ("mci: sdhci: Get rid of many register ops")
the core checks whether there is an explicit write function for the
host. If the struct is not zero initialized, a bogus value is taken as
the function, resulting in an unbootable board. Zero initialize the
structs properly to let the PBL correctly load images. Fixes booting on
the i.MX8M* board, tested on i.MX8MP EVK.

Fixes: 56ca2c197e71 ("mci: sdhci: Get rid of many register ops")

Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
---
 drivers/mci/imx-esdhc-pbl.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/mci/imx-esdhc-pbl.c b/drivers/mci/imx-esdhc-pbl.c
index c3a8b377e..2e04c78fd 100644
--- a/drivers/mci/imx-esdhc-pbl.c
+++ b/drivers/mci/imx-esdhc-pbl.c
@@ -233,7 +233,7 @@ static int imx8m_esdhc_init(struct fsl_esdhc_host *host,
 int imx6_esdhc_start_image(int instance)
 {
 	struct esdhc_soc_data data;
-	struct fsl_esdhc_host host;
+	struct fsl_esdhc_host host = { 0 };
 
 	switch (instance) {
 	case 0:
@@ -272,7 +272,7 @@ int imx6_esdhc_start_image(int instance)
 int imx7_esdhc_start_image(int instance)
 {
 	struct esdhc_soc_data data;
-	struct fsl_esdhc_host host;
+	struct fsl_esdhc_host host = { 0 };
 
 	switch (instance) {
 	case 0:
@@ -309,7 +309,7 @@ int imx7_esdhc_start_image(int instance)
 int imx8m_esdhc_load_image(int instance, bool start)
 {
 	struct esdhc_soc_data data;
-	struct fsl_esdhc_host host;
+	struct fsl_esdhc_host host = { 0 };
 	int ret;
 
 	ret = imx8m_esdhc_init(&host, &data, instance);
@@ -337,7 +337,7 @@ int imx8m_esdhc_load_image(int instance, bool start)
 int imx8mp_esdhc_load_image(int instance, bool start)
 {
 	struct esdhc_soc_data data;
-	struct fsl_esdhc_host host;
+	struct fsl_esdhc_host host = { 0 };
 	int ret;
 
 	ret = imx8m_esdhc_init(&host, &data, instance);
-- 
2.30.2


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             reply	other threads:[~2021-08-05  8:28 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-05  8:26 Rouven Czerwinski [this message]
2021-08-05 13:52 ` Ahmad Fatoum
2021-08-09 18:10 ` Sascha Hauer

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