From b545a98f5dc5635d55b5b3878cbb44142e863017 Mon Sep 17 00:00:00 2001
From: "Poddar, Sourav" <sourav.poddar@ti.com>
Date: Thu, 3 Apr 2014 07:52:54 -0400
Subject: [PATCH] spi: ti_qspi: Add delay for successful bulk erase.
Bulk erase is not happening properly on dra7 due to erase timing constraints,
add a delay so that erase timing constraints are properly met.
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Tested-by: Yebio Mesfin <ymesfin@ti.com>
---
drivers/spi/ti_qspi.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/spi/ti_qspi.c b/drivers/spi/ti_qspi.c
index dfa5d0ca21..c5d2245e44 100644
--- a/drivers/spi/ti_qspi.c
+++ b/drivers/spi/ti_qspi.c
@@ -314,6 +314,9 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
qslave->cmd |= QSPI_RD_SNGL;
debug("rx cmd %08x dc %08x\n",
qslave->cmd, qslave->dc);
+ #ifdef CONFIG_DRA7XX
+ udelay(500);
+ #endif
writel(qslave->cmd, &qslave->base->cmd);
status = readl(&qslave->base->status);
timeout = QSPI_TIMEOUT;
--
2.39.5