diff options
Diffstat (limited to 'drivers/spi/mpc8xxx_spi.c')
| -rw-r--r-- | drivers/spi/mpc8xxx_spi.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/spi/mpc8xxx_spi.c b/drivers/spi/mpc8xxx_spi.c index 6869d60d97..78892173dc 100644 --- a/drivers/spi/mpc8xxx_spi.c +++ b/drivers/spi/mpc8xxx_spi.c @@ -16,6 +16,7 @@ #include <dm/device_compat.h> #include <linux/bitops.h> #include <linux/delay.h> +#include <asm/arch/soc.h> enum { SPI_EV_NE = BIT(31 - 22), /* Receiver Not Empty */ @@ -30,6 +31,7 @@ enum { SPI_MODE_REV = BIT(31 - 5), /* Reverse mode - MSB first */ SPI_MODE_MS = BIT(31 - 6), /* Always master */ SPI_MODE_EN = BIT(31 - 7), /* Enable interface */ + SPI_MODE_OP = BIT(31 - 17), /* CPU Mode, QE otherwise */ SPI_MODE_LEN_MASK = 0xf00000, SPI_MODE_LEN_SHIFT = 20, @@ -89,6 +91,9 @@ static int mpc8xxx_spi_probe(struct udevice *dev) */ out_be32(&priv->spi->mode, SPI_MODE_REV | SPI_MODE_MS); + if (dev_get_driver_data(dev) == SOC_MPC832X) + setbits_be32(&priv->spi->mode, SPI_MODE_OP); + /* set len to 8 bits */ setbits_be32(&spi->mode, (8 - 1) << SPI_MODE_LEN_SHIFT); @@ -130,6 +135,7 @@ static int mpc8xxx_spi_xfer(struct udevice *dev, uint bitlen, u32 tmpdin = 0, tmpdout = 0, n; const u8 *cout = dout; u8 *cin = din; + ulong type = dev_get_driver_data(bus); debug("%s: slave %s:%u dout %08X din %08X bitlen %u\n", __func__, bus->name, plat->cs, (uint)dout, (uint)din, bitlen); @@ -157,6 +163,9 @@ static int mpc8xxx_spi_xfer(struct udevice *dev, uint bitlen, if (cout) tmpdout = *cout++; + if (type == SOC_MPC832X) + tmpdout <<= 24; + /* Write the data out */ out_be32(&spi->tx, tmpdout); @@ -179,6 +188,9 @@ static int mpc8xxx_spi_xfer(struct udevice *dev, uint bitlen, tmpdin = in_be32(&spi->rx); setbits_be32(&spi->event, SPI_EV_NE); + if (type == SOC_MPC832X) + tmpdin >>= 16; + if (cin) *cin++ = tmpdin; @@ -271,6 +283,7 @@ static const struct dm_spi_ops mpc8xxx_spi_ops = { static const struct udevice_id mpc8xxx_spi_ids[] = { { .compatible = "fsl,spi" }, + { .compatible = "fsl,mpc832x-spi", .data = SOC_MPC832X }, { } }; |