Added posted writes (read after writes) to effect the
change immediately for channel confiuration and channel
enable register
Disable the channel to purge receieve data in TX_ONLY
mode transfer otherwise rx data will get affected by
the next immediate RX_ONLY mode transfer
Wait for the EOT bit to be set after last byte has been
loaded to TX shift register in the the TX_ONLY mode.This
ensures TX data has been completely shifted out
Disable the channel in RX_ONLY mode before reading the
last data from RXX register to prevent the SPI slave
to transmit next word
Signed-off-by: Ajoy Kumar Das <akdas75@yahoo.in>
Cc: Tom Rini <trini@ti.com>
Cc: jacopo mondi <j.mondi@voltaelectronics.com>
Implementation of receive-transmit mode for
omap3 MCSPI.
Introduces full duplex communication, needed by
some spi devices (such as enc28j60).
Signed-off-by: jacopo mondi <mondi@cs.unibo.it> <j.mondi@voltaelectronics.com>
CC: Ruslan N. Araslanov <byaaka@yandex.ru>
Signed-off-by: Ruslan Araslanov <ruslan.araslanov@vitecmm.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
