On Thursday 03 April 2014 11:30 AM, Jagan Teki wrote:
Hi Sourav,

On Wednesday 02 April 2014 04:06 PM, Sourav Poddar wrote:
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.pod...@ti.com>
Tested-by: Yebio Mesfin <ymes...@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 dfa5d0c..c5d2245 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

I myself not conveyed these delays on spi_xfer() (looks odd to me), we
already have AM43XX delay on code, can't it be possible to manage
through status poll?
I know, its little out of place but with status poll way, erase is inconsistent, might be some board timing constraints.
Hence, I am force to add this delay for dra board.

I tried the status poll way, but erase is inconsistent, might be some board timing constraints.
thanks!
--
Jagan.


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