diff mbox series

[U-Boot,1/1] mmc: stm32_sdmmc2: increase polling status register delay

Message ID 1507561348-15602-1-git-send-email-patrice.chotard@st.com
State Accepted
Commit 6c36e97be6c352d727ff8edfb681b419afcf4adb
Delegated to: Tom Rini
Headers show
Series [U-Boot,1/1] mmc: stm32_sdmmc2: increase polling status register delay | expand

Commit Message

Patrice CHOTARD Oct. 9, 2017, 3:02 p.m. UTC 
From: Christophe Kerello <christophe.kerello@st.com>

MMC commands like MMC_CMD_ALL_SEND_CID or MMC_CMD_SEND_CSD can reach
500 us. This patch increases the polling status register delay to avoid
a timeout on a command.

Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
---
 drivers/mmc/stm32_sdmmc2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Tom Rini Oct. 17, 2017, 12:47 a.m. UTC | #1 
On Mon, Oct 09, 2017 at 05:02:28PM +0200, patrice.chotard@st.com wrote:

> From: Christophe Kerello <christophe.kerello@st.com>
> 
> MMC commands like MMC_CMD_ALL_SEND_CID or MMC_CMD_SEND_CSD can reach
> 500 us. This patch increases the polling status register delay to avoid
> a timeout on a command.
> 
> Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
> Signed-off-by: Patrice Chotard <patrice.chotard@st.com>

Applied to u-boot/master, thanks!
diff mbox series

Patch

diff --git a/drivers/mmc/stm32_sdmmc2.c b/drivers/mmc/stm32_sdmmc2.c
index 0e1f40b..fd49d42 100644
--- a/drivers/mmc/stm32_sdmmc2.c
+++ b/drivers/mmc/stm32_sdmmc2.c
@@ -276,7 +276,7 @@  static int stm32_sdmmc2_end_cmd(struct stm32_sdmmc2_priv *priv,
 
 	/* Polling status register */
 	ret = readl_poll_timeout(priv->base + SDMMC_STA, status, status & mask,
-				 300);
+				 10000);
 
 	if (ret < 0) {
 		debug("%s: timeout reading SDMMC_STA register\n", __func__);