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>

diff --git a/drivers/spi/ti_qspi.c b/drivers/spi/ti_qspi.c
index dfa5d0ca2165bf854782023da1389eeb64809b4b..c5d2245e4460bd8881d40f2e2bde2ffa990e3930 100644 (file)
--- 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;