diff options
Diffstat (limited to 'drivers/spi/kirkwood_spi.c')
| -rw-r--r-- | drivers/spi/kirkwood_spi.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/spi/kirkwood_spi.c b/drivers/spi/kirkwood_spi.c index 80cdbd0..6851ba9 100644 --- a/drivers/spi/kirkwood_spi.c +++ b/drivers/spi/kirkwood_spi.c @@ -283,6 +283,19 @@ static int mvebu_spi_xfer(struct udevice *dev, unsigned int bitlen, return _spi_xfer(plat->spireg, bitlen, dout, din, flags); } +static int mvebu_spi_claim_bus(struct udevice *dev) +{ + struct udevice *bus = dev->parent; + struct mvebu_spi_platdata *plat = dev_get_platdata(bus); + + /* Configure the chip-select in the CTRL register */ + clrsetbits_le32(&plat->spireg->ctrl, + KWSPI_CS_MASK << KWSPI_CS_SHIFT, + spi_chip_select(dev) << KWSPI_CS_SHIFT); + + return 0; +} + static int mvebu_spi_probe(struct udevice *bus) { struct mvebu_spi_platdata *plat = dev_get_platdata(bus); @@ -305,6 +318,7 @@ static int mvebu_spi_ofdata_to_platdata(struct udevice *bus) } static const struct dm_spi_ops mvebu_spi_ops = { + .claim_bus = mvebu_spi_claim_bus, .xfer = mvebu_spi_xfer, .set_speed = mvebu_spi_set_speed, .set_mode = mvebu_spi_set_mode, |