staging: octeon: configure rx-delay/tx-delay

Configure rx-delay/tx-delay when available.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
index 2eb97317f6319b269b21b2d0dd7092ae7df8b456..073a1e335fe4269756e1506668a18cf75641c223 100644 (file)
--- a/drivers/staging/octeon/ethernet.c
+++ b/drivers/staging/octeon/ethernet.c
@@ -35,7 +35,7 @@
 #include <asm/octeon/cvmx-fau.h>
 #include <asm/octeon/cvmx-ipd.h>
 #include <asm/octeon/cvmx-helper.h>
-
+#include <asm/octeon/cvmx-asxx-defs.h>
 #include <asm/octeon/cvmx-gmxx-defs.h>
 #include <asm/octeon/cvmx-smix-defs.h>
 
@@ -647,6 +647,16 @@ static struct device_node *cvm_oct_node_for_port(struct device_node *pip,
        return np;
 }
 
+static void cvm_set_rgmii_delay(struct device_node *np, int iface, int port)
+{
+       u32 delay_value;
+
+       if (!of_property_read_u32(np, "rx-delay", &delay_value))
+               cvmx_write_csr(CVMX_ASXX_RX_CLK_SETX(port, iface), delay_value);
+       if (!of_property_read_u32(np, "tx-delay", &delay_value))
+               cvmx_write_csr(CVMX_ASXX_TX_CLK_SETX(port, iface), delay_value);
+}
+
 static int cvm_oct_probe(struct platform_device *pdev)
 {
        int num_interfaces;
@@ -805,6 +815,8 @@ static int cvm_oct_probe(struct platform_device *pdev)
                        case CVMX_HELPER_INTERFACE_MODE_GMII:
                                dev->netdev_ops = &cvm_oct_rgmii_netdev_ops;
                                strcpy(dev->name, "eth%d");
+                               cvm_set_rgmii_delay(priv->of_node, interface,
+                                                   port_index);
                                break;
                        }