Ensure clock line is in the idle state before asserting chip select.
authorMichael Brown <mcb30@etherboot.org>
Sat, 28 Jul 2007 15:05:41 +0000 (16:05 +0100)
committerMichael Brown <mcb30@etherboot.org>
Sat, 28 Jul 2007 15:05:41 +0000 (16:05 +0100)
src/drivers/bitbash/spi_bit.c

index e2175d6..a4e7136 100644 (file)
@@ -153,6 +153,10 @@ static int spi_bit_rw ( struct spi_bus *bus, struct spi_device *device,
                = container_of ( bus, struct spi_bit_basher, bus );
        uint32_t tmp;
 
+       /* Set clock line to idle state */
+       write_bit ( &spibit->basher, SPI_BIT_SCLK, 
+                   ( bus->mode & SPI_MODE_CPOL ) );
+
        /* Assert chip select on specified slave */
        spi_bit_set_slave_select ( spibit, device->slave, SELECT_SLAVE );