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Force higmac driver to use specified PHY addr instead of DTS default value (#529)

pull/530/head
Serhio 2022-10-29 15:25:57 +03:00 committed by GitHub
parent fb1ec4529b
commit 4af1803d66
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 11 additions and 17 deletions
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28
br-ext-chip-hisilicon/board/hi3516av100/kernel/patches/20-of_mdio.c.patch
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@ -1,32 +1,26 @@
diff --git a/home/goody/of_mdio.c b/output/build/linux-4.9.37/drivers/of/of_mdio.c
index 262281bd..5f338cd6 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -25,6 +25,11 @@
MODULE_AUTHOR("Grant Likely <grant.likely@secretlab.ca>");
MODULE_LICENSE("GPL");
+int higmacphy = 0;
+int higmacphy = -1;
+EXPORT_SYMBOL(higmacphy);
+MODULE_PARM_DESC(higmacphy, "Select phyaddr for higmac driver.\n");
+MODULE_PARM_DESC(higmacphy, "Force higmac driver to use specified PHY addr instead of DTS default value.\n");
+module_param_named(higmacphy, higmacphy, int, 0600);
+
/* Extract the clause 22 phy ID from the compatible string of the form
* ethernet-phy-idAAAA.BBBB */
static int of_get_phy_id(struct device_node *device, u32 *phy_id)
@@ -248,7 +256,14 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
if (of_find_property(child, "reg", NULL))
@@ -233,6 +238,11 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
continue;
}
- for (addr = 0; addr < PHY_MAX_ADDR; addr++) {
+ if (higmacphy>0) {
+ dev_info(&mdio->dev, "higmacphy addr is set in kernel arguments: phy %s at address %i\n",
+ child->name, higmacphy);
+
+ if (of_mdiobus_child_is_phy(child))
+ of_mdiobus_register_phy(mdio, child, higmacphy);
+ if (higmacphy != -1) {
+ dev_info(&mdio->dev, "higmac phy addr in %s is set to %i\n", child->name, higmacphy);
+ addr = higmacphy;
+ }
+ else for (addr = 0; addr < PHY_MAX_ADDR; addr++) {
/* skip already registered PHYs */
if (mdiobus_is_registered_device(mdio, addr))
continue;
+
if (of_mdiobus_child_is_phy(child))
of_mdiobus_register_phy(mdio, child, addr);
else