spi: spi-uclass: Read chipselect and restrict capabilities
Read chipselect properties from DT which are populated using 'reg'
property and save it in plat->cs[] array for later use.
Also read multi chipselect capability which is used for
parallel-memories and return errors if they are passed on using DT but
driver is not capable of handling it.
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@amd.com>
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
diff --git a/drivers/spi/mpc8xxx_spi.c b/drivers/spi/mpc8xxx_spi.c
index cd624f4..b34e1c2 100644
--- a/drivers/spi/mpc8xxx_spi.c
+++ b/drivers/spi/mpc8xxx_spi.c
@@ -113,7 +113,7 @@
struct mpc8xxx_priv *priv = dev_get_priv(dev->parent);
struct dm_spi_slave_plat *plat = dev_get_parent_plat(dev);
- dm_gpio_set_value(&priv->gpios[plat->cs], 1);
+ dm_gpio_set_value(&priv->gpios[plat->cs[0]], 1);
}
static void mpc8xxx_spi_cs_deactivate(struct udevice *dev)
@@ -121,7 +121,7 @@
struct mpc8xxx_priv *priv = dev_get_priv(dev->parent);
struct dm_spi_slave_plat *plat = dev_get_parent_plat(dev);
- dm_gpio_set_value(&priv->gpios[plat->cs], 0);
+ dm_gpio_set_value(&priv->gpios[plat->cs[0]], 0);
}
static int mpc8xxx_spi_xfer(struct udevice *dev, uint bitlen,
@@ -137,10 +137,10 @@
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);
- if (plat->cs >= priv->cs_count) {
+ bus->name, plat->cs[0], (uint)dout, (uint)din, bitlen);
+ if (plat->cs[0] >= priv->cs_count) {
dev_err(dev, "chip select index %d too large (cs_count=%d)\n",
- plat->cs, priv->cs_count);
+ plat->cs[0], priv->cs_count);
return -EINVAL;
}
if (bitlen % 8) {