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authorJames <>2015-11-04 11:49:21 +0000
committerJames <>2015-11-04 11:49:21 +0000
commit716ca530e1c4515d8683c9d5be3d56b301758b66 (patch)
tree700eb5bcc1a462a5f21dcec15ce7c97ecfefa772 /target/linux/ipq806x/patches-4.1/701-stmmac-add-phy-handle-support-to-the-platform-layer.patch
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Diffstat (limited to 'target/linux/ipq806x/patches-4.1/701-stmmac-add-phy-handle-support-to-the-platform-layer.patch')
-rw-r--r--target/linux/ipq806x/patches-4.1/701-stmmac-add-phy-handle-support-to-the-platform-layer.patch105
1 files changed, 105 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches-4.1/701-stmmac-add-phy-handle-support-to-the-platform-layer.patch b/target/linux/ipq806x/patches-4.1/701-stmmac-add-phy-handle-support-to-the-platform-layer.patch
new file mode 100644
index 0000000..5c29887
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.1/701-stmmac-add-phy-handle-support-to-the-platform-layer.patch
@@ -0,0 +1,105 @@
+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_OR_NULL(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
+@@ -28,6 +28,7 @@
+ #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"
+@@ -168,13 +169,16 @@ 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;