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authorAaro Koskinen <aaro.koskinen@iki.fi>2016-08-30 21:28:11 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-09-01 18:37:52 +0300
commitef2d4f6c1b8b23639b6f4996a714d642f39facfc (patch)
treead498f78c4b27986d51a4efe44848b49515c35f4 /drivers/staging/octeon
parentc2bbedf01fe7a9901828911c7a2d8c27f48a5f16 (diff)
downloadlinux-ef2d4f6c1b8b23639b6f4996a714d642f39facfc.tar.xz
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>
Diffstat (limited to 'drivers/staging/octeon')
-rw-r--r--drivers/staging/octeon/ethernet.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
index 2eb97317f631..073a1e335fe4 100644
--- 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;
}