1 files changed, 18 insertions, 0 deletions

diff --git a/arch/arm/mach-at91/board-dt-sama5.c b/arch/arm/mach-at91/board-dt-sama5.c
index 8fb9ef5333f1..97f7367d32b8 100644
--- a/arch/arm/mach-at91/board-dt-sama5.c
+++ b/arch/arm/mach-at91/board-dt-sama5.c
@@ -17,6 +17,7 @@
 #include <linux/of_platform.h>
 #include <linux/phy.h>
 #include <linux/clk-provider.h>
+#include <linux/phy.h>
 
 #include <asm/setup.h>
 #include <asm/irq.h>
@@ -26,8 +27,25 @@
 
 #include "generic.h"
 
+static int ksz8081_phy_fixup(struct phy_device *phy)
+{
+        int value;
+
+        value = phy_read(phy, 0x16);
+        value &= ~0x20;
+        phy_write(phy, 0x16, value);
+
+        return 0;
+}
+
 static void __init sama5_dt_device_init(void)
 {
+        if (of_machine_is_compatible("atmel,sama5d4ek") &&
+           IS_ENABLED(CONFIG_PHYLIB)) {
+                phy_register_fixup_for_id("fc028000.etherne:00",
+                                                ksz8081_phy_fixup);
+        }
+
         of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }