On Thursday 19 December 2013 11:24 AM, Jagan Teki wrote:
On Thu, Dec 19, 2013 at 10:35 AM, Sourav Poddar<sourav.pod...@ti.com> wrote:
On Thursday 19 December 2013 12:17 AM, Jagan Teki wrote:
On Thu, Nov 14, 2013 at 9:09 PM, Sourav Poddar<sourav.pod...@ti.com>
wrote:
Without this delay, write/read is failing.
Looks like, the WIP always remain set and hence a timeout
occurs leading to the error.
Signed-off-by: Sourav Poddar<sourav.pod...@ti.com>
---
Hi Jagan,
This patch seems to be necessary for read/write.
I tested by changing few timing variables, but it did not help.
The same driver works on J6 with a differnet flash(S25FL256S).
Is any one tested macronix flash at uboot?
Delay must be for macronix?
or common for all flashes.
For macronix.
All kind of micron parts or any specific..
bcz this delay seems to be not- a reasonable.
that I am not sure as I have only one macronix
flash to test with
I haven't tested macronix
drivers/spi/ti_qspi.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/spi/ti_qspi.c b/drivers/spi/ti_qspi.c
index 5666250..aa7b6ae 100644
--- a/drivers/spi/ti_qspi.c
+++ b/drivers/spi/ti_qspi.c
@@ -285,6 +285,9 @@ int spi_xfer(struct spi_slave *slave, unsigned int
bitlen, const void *dout,
qslave->cmd |= QSPI_3_PIN;
qslave->cmd |= 0xfff;
+#ifdef CONFIG_AM43XX
+ udelay(100);
+#endif
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