net: phy: Add support for all targets which requires MANUAL_RELOC

Targets with CONFIG_NEEDS_MANUAL_RELOC do not use REL/RELA
relocation (mostly only GOT) where functions aray are not
updated. This patch is fixing function pointers passed to phy_register
function.
This patch was tested on Microblaze architecture.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>

drivers/net/phy/phy.c

@@ -21,6 +21,8 @@
 #include <linux/err.h>
 #include <linux/compiler.h>
 
+DECLARE_GLOBAL_DATA_PTR;
+
 /* Generic PHY support and helper functions */
 
 /**
@@ -494,6 +496,20 @@ int phy_register(struct phy_driver *drv)
 	INIT_LIST_HEAD(&drv->list);
 	list_add_tail(&drv->list, &phy_drivers);
 
+#ifdef CONFIG_NEEDS_MANUAL_RELOC
+	if (drv->probe)
+		drv->probe += gd->reloc_off;
+	if (drv->config)
+		drv->config += gd->reloc_off;
+	if (drv->startup)
+		drv->startup += gd->reloc_off;
+	if (drv->shutdown)
+		drv->shutdown += gd->reloc_off;
+	if (drv->readext)
+		drv->readext += gd->reloc_off;
+	if (drv->writeext)
+		drv->writeext += gd->reloc_off;
+#endif
 	return 0;
 }