diff options
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/kirkwood_spi.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/spi/kirkwood_spi.c b/drivers/spi/kirkwood_spi.c index 6851ba942f..791f3e8099 100644 --- a/drivers/spi/kirkwood_spi.c +++ b/drivers/spi/kirkwood_spi.c @@ -271,6 +271,21 @@ static int mvebu_spi_set_speed(struct udevice *bus, uint hz) static int mvebu_spi_set_mode(struct udevice *bus, uint mode) { + struct mvebu_spi_platdata *plat = dev_get_platdata(bus); + struct kwspi_registers *reg = plat->spireg; + u32 data = readl(®->cfg); + + data &= ~(KWSPI_CPHA | KWSPI_CPOL | KWSPI_RXLSBF | KWSPI_TXLSBF); + + if (mode & SPI_CPHA) + data |= KWSPI_CPHA; + if (mode & SPI_CPOL) + data |= KWSPI_CPOL; + if (mode & SPI_LSB_FIRST) + data |= (KWSPI_RXLSBF | KWSPI_TXLSBF); + + writel(data, ®->cfg); + return 0; } |