From: Vignesh R <vigneshr@ti.com>
Date: Wed, 7 Sep 2016 09:48:23 +0000 (+0530)
Subject: spi: ti_qspi: Remove unnecessary udelay for AM437x
X-Git-Tag: v2016.11-rc1~112^2~9
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=28b69f64886c89d463ebe380f87f858f7362be36;p=oweals%2Fu-boot.git

spi: ti_qspi: Remove unnecessary udelay for AM437x

This udelay() was added as an HACK and is no longer required. All
read/write/erase operations work fine even without this delay. Hence,
remove the udelay() call.

Tested read/write/erase operation on AM437x SK. Also tested QSPI Boot.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
---

diff --git a/drivers/spi/ti_qspi.c b/drivers/spi/ti_qspi.c
index 1e2c432ede..406e76b8a7 100644
--- a/drivers/spi/ti_qspi.c
+++ b/drivers/spi/ti_qspi.c
@@ -226,13 +226,6 @@ static int __ti_qspi_xfer(struct ti_qspi_priv *priv, unsigned int bitlen,
 		priv->cmd |= QSPI_3_PIN;
 	priv->cmd |= 0xfff;
 
-/* FIXME: This delay is required for successfull
- * completion of read/write/erase. Once its root
- * caused, it will be remove from the driver.
- */
-#ifdef CONFIG_AM43XX
-	udelay(100);
-#endif
 	while (words) {
 		u8 xfer_len = 0;