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/ti_qspi.c b/drivers/spi/ti_qspi.c
index a16412e..1f2494e 100644
--- a/drivers/spi/ti_qspi.c
+++ b/drivers/spi/ti_qspi.c
@@ -163,7 +163,7 @@
uchar *rxp = din;
uint status;
int timeout;
- unsigned int cs = slave->cs;
+ unsigned int cs = slave->cs[0];
bus = dev->parent;
priv = dev_get_priv(bus);
@@ -344,7 +344,7 @@
if (from + op->data.nbytes > priv->mmap_size)
return -ENOTSUPP;
- ti_qspi_setup_mmap_read(priv, slave_plat->cs, op->cmd.opcode,
+ ti_qspi_setup_mmap_read(priv, slave_plat->cs[0], op->cmd.opcode,
op->data.buswidth, op->addr.nbytes,
op->dummy.nbytes);
@@ -363,7 +363,7 @@
bus = dev->parent;
priv = dev_get_priv(bus);
- if (slave_plat->cs > priv->num_cs) {
+ if (slave_plat->cs[0] > priv->num_cs) {
debug("invalid qspi chip select\n");
return -EINVAL;
}
@@ -371,13 +371,13 @@
writel(MM_SWITCH, &priv->base->memswitch);
if (priv->ctrl_mod_mmap)
ti_qspi_ctrl_mode_mmap(priv->ctrl_mod_mmap,
- slave_plat->cs, true);
+ slave_plat->cs[0], true);
writel(priv->dc, &priv->base->dc);
writel(0, &priv->base->cmd);
writel(0, &priv->base->data);
- priv->dc <<= slave_plat->cs * 8;
+ priv->dc <<= slave_plat->cs[0] * 8;
writel(priv->dc, &priv->base->dc);
return 0;
@@ -395,12 +395,12 @@
writel(~MM_SWITCH, &priv->base->memswitch);
if (priv->ctrl_mod_mmap)
ti_qspi_ctrl_mode_mmap(priv->ctrl_mod_mmap,
- slave_plat->cs, false);
+ slave_plat->cs[0], false);
writel(0, &priv->base->dc);
writel(0, &priv->base->cmd);
writel(0, &priv->base->data);
- writel(0, TI_QSPI_SETUP_REG(priv, slave_plat->cs));
+ writel(0, TI_QSPI_SETUP_REG(priv, slave_plat->cs[0]));
return 0;
}