i2c: cdns: Read address from DT in ofdata_to_platdata
Extract reading IP base address in function which is designed for it.
Also enable option to read more information from DT in this function.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
diff --git a/drivers/i2c/i2c-cdns.c b/drivers/i2c/i2c-cdns.c
index 909cea2..66bd580 100644
--- a/drivers/i2c/i2c-cdns.c
+++ b/drivers/i2c/i2c-cdns.c
@@ -125,10 +125,6 @@
{
struct i2c_cdns_bus *bus = dev_get_priv(dev);
- bus->regs = (struct cdns_i2c_regs *)dev_get_addr(dev);
- if (!bus->regs)
- return -ENOMEM;
-
/* TODO: Calculate dividers based on CPU_CLK_1X */
/* 111MHz / ( (3 * 17) * 22 ) = ~100KHz */
writel((16 << CDNS_I2C_CONTROL_DIV_B_SHIFT) |
@@ -313,6 +309,17 @@
return 0;
}
+static int cdns_i2c_ofdata_to_platdata(struct udevice *dev)
+{
+ struct i2c_cdns_bus *i2c_bus = dev_get_priv(dev);
+
+ i2c_bus->regs = (struct cdns_i2c_regs *)dev_get_addr(dev);
+ if (!i2c_bus->regs)
+ return -ENOMEM;
+
+ return 0;
+}
+
static const struct dm_i2c_ops cdns_i2c_ops = {
.xfer = cdns_i2c_xfer,
.probe_chip = cdns_i2c_probe_chip,
@@ -330,6 +337,7 @@
.of_match = cdns_i2c_of_match,
.probe = cdns_i2c_probe,
.remove = cdns_i2c_remove,
+ .ofdata_to_platdata = cdns_i2c_ofdata_to_platdata,
.priv_auto_alloc_size = sizeof(struct i2c_cdns_bus),
.ops = &cdns_i2c_ops,
};