106 lines
3.6 KiB
Diff
106 lines
3.6 KiB
Diff
From 4f09499bc1d9bb095caccbcd73ff951ee631e521 Mon Sep 17 00:00:00 2001
|
|
From: Mathieu Olivari <mathieu@codeaurora.org>
|
|
Date: Fri, 8 May 2015 15:42:40 -0700
|
|
Subject: [PATCH 1/8] stmmac: add phy-handle support to the platform layer
|
|
|
|
On stmmac driver, PHY specification in device-tree was done using the
|
|
non-standard property "snps,phy-addr". Specifying a PHY on a different
|
|
MDIO bus that the one within the stmmac controller doesn't seem to be
|
|
possible when device-tree is used.
|
|
|
|
This change adds support for the phy-handle property, as specified in
|
|
Documentation/devicetree/bindings/net/ethernet.txt.
|
|
|
|
Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
|
|
---
|
|
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 28 ++++++++++++++--------
|
|
.../net/ethernet/stmicro/stmmac/stmmac_platform.c | 6 ++++-
|
|
include/linux/stmmac.h | 1 +
|
|
3 files changed, 24 insertions(+), 11 deletions(-)
|
|
|
|
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
|
|
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
|
|
@@ -52,6 +52,7 @@
|
|
#include "stmmac_ptp.h"
|
|
#include "stmmac.h"
|
|
#include <linux/reset.h>
|
|
+#include <linux/of_mdio.h>
|
|
|
|
#define STMMAC_ALIGN(x) L1_CACHE_ALIGN(x)
|
|
|
|
@@ -816,18 +817,25 @@ static int stmmac_init_phy(struct net_de
|
|
priv->speed = 0;
|
|
priv->oldduplex = -1;
|
|
|
|
- if (priv->plat->phy_bus_name)
|
|
- snprintf(bus_id, MII_BUS_ID_SIZE, "%s-%x",
|
|
- priv->plat->phy_bus_name, priv->plat->bus_id);
|
|
- else
|
|
- snprintf(bus_id, MII_BUS_ID_SIZE, "stmmac-%x",
|
|
- priv->plat->bus_id);
|
|
-
|
|
- snprintf(phy_id_fmt, MII_BUS_ID_SIZE + 3, PHY_ID_FMT, bus_id,
|
|
- priv->plat->phy_addr);
|
|
- pr_debug("stmmac_init_phy: trying to attach to %s\n", phy_id_fmt);
|
|
+ if (priv->plat->phy_node) {
|
|
+ phydev = of_phy_connect(dev, priv->plat->phy_node,
|
|
+ &stmmac_adjust_link, 0, interface);
|
|
+ } else {
|
|
+ if (priv->plat->phy_bus_name)
|
|
+ snprintf(bus_id, MII_BUS_ID_SIZE, "%s-%x",
|
|
+ priv->plat->phy_bus_name, priv->plat->bus_id);
|
|
+ else
|
|
+ snprintf(bus_id, MII_BUS_ID_SIZE, "stmmac-%x",
|
|
+ priv->plat->bus_id);
|
|
+
|
|
+ snprintf(phy_id_fmt, MII_BUS_ID_SIZE + 3, PHY_ID_FMT, bus_id,
|
|
+ priv->plat->phy_addr);
|
|
+ pr_debug("stmmac_init_phy: trying to attach to %s\n",
|
|
+ phy_id_fmt);
|
|
|
|
- phydev = phy_connect(dev, phy_id_fmt, &stmmac_adjust_link, interface);
|
|
+ phydev = phy_connect(dev, phy_id_fmt, &stmmac_adjust_link,
|
|
+ interface);
|
|
+ }
|
|
|
|
if (IS_ERR(phydev)) {
|
|
pr_err("%s: Could not attach to PHY\n", dev->name);
|
|
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
|
|
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
|
|
@@ -27,6 +27,7 @@
|
|
#include <linux/of.h>
|
|
#include <linux/of_net.h>
|
|
#include <linux/of_device.h>
|
|
+#include <linux/of_mdio.h>
|
|
|
|
#include "stmmac.h"
|
|
#include "stmmac_platform.h"
|
|
@@ -167,13 +168,16 @@ static int stmmac_probe_config_dt(struct
|
|
/* Default to phy auto-detection */
|
|
plat->phy_addr = -1;
|
|
|
|
+ /* If we find a phy-handle property, use it as the PHY */
|
|
+ plat->phy_node = of_parse_phandle(np, "phy-handle", 0);
|
|
+
|
|
/* "snps,phy-addr" is not a standard property. Mark it as deprecated
|
|
* and warn of its use. Remove this when phy node support is added.
|
|
*/
|
|
if (of_property_read_u32(np, "snps,phy-addr", &plat->phy_addr) == 0)
|
|
dev_warn(&pdev->dev, "snps,phy-addr property is deprecated\n");
|
|
|
|
- if (plat->phy_bus_name)
|
|
+ if (plat->phy_node || plat->phy_bus_name)
|
|
plat->mdio_bus_data = NULL;
|
|
else
|
|
plat->mdio_bus_data =
|
|
--- a/include/linux/stmmac.h
|
|
+++ b/include/linux/stmmac.h
|
|
@@ -99,6 +99,7 @@ struct plat_stmmacenet_data {
|
|
int phy_addr;
|
|
int interface;
|
|
struct stmmac_mdio_bus_data *mdio_bus_data;
|
|
+ struct device_node *phy_node;
|
|
struct stmmac_dma_cfg *dma_cfg;
|
|
int clk_csr;
|
|
int has_gmac;
|