commit bc14018c2d291949583dc80bafe1196efeba0317
author Guenter Roeck <linux@roeck-us.net> Wed Mar 15 07:52:45 2023 -0700
committer Peter Maydell <peter.maydell@linaro.org> Thu Apr 20 10:46:19 2023 +0100
tree 631c2a7add2931a47c06b08850b530e1f48347bb
parent df3f5efe108e4787187133dda05112d32a1b87e8

fsl-imx6ul: Add fec[12]-phy-connected properties

Add fec[12]-phy-connected properties and use it to set phy-connected
and phy-consumer properties for imx_fec.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Message-id: 20230315145248.1639364-3-linux@roeck-us.net
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/arm/fsl-imx6ul.c

diff --git a/hw/arm/fsl-imx6ul.c b/hw/arm/fsl-imx6ul.c
index d88d6cc..2189dcb 100644
--- a/hw/arm/fsl-imx6ul.c
+++ b/hw/arm/fsl-imx6ul.c
@@ -407,8 +407,24 @@
 
     /*
      * Ethernet
+     *
+     * We must use two loops since phy_connected affects the other interface
+     * and we have to set all properties before calling sysbus_realize().
      */
     for (i = 0; i < FSL_IMX6UL_NUM_ETHS; i++) {
+        object_property_set_bool(OBJECT(&s->eth[i]), "phy-connected",
+                                 s->phy_connected[i], &error_abort);
+        /*
+         * If the MDIO bus on this controller is not connected, assume the
+         * other controller provides support for it.
+         */
+        if (!s->phy_connected[i]) {
+            object_property_set_link(OBJECT(&s->eth[1 - i]), "phy-consumer",
+                                     OBJECT(&s->eth[i]), &error_abort);
+        }
+    }
+
+    for (i = 0; i < FSL_IMX6UL_NUM_ETHS; i++) {
         static const hwaddr FSL_IMX6UL_ENETn_ADDR[FSL_IMX6UL_NUM_ETHS] = {
             FSL_IMX6UL_ENET1_ADDR,
             FSL_IMX6UL_ENET2_ADDR,
@@ -620,6 +636,10 @@
 static Property fsl_imx6ul_properties[] = {
     DEFINE_PROP_UINT32("fec1-phy-num", FslIMX6ULState, phy_num[0], 0),
     DEFINE_PROP_UINT32("fec2-phy-num", FslIMX6ULState, phy_num[1], 1),
+    DEFINE_PROP_BOOL("fec1-phy-connected", FslIMX6ULState, phy_connected[0],
+                     true),
+    DEFINE_PROP_BOOL("fec2-phy-connected", FslIMX6ULState, phy_connected[1],
+                     true),
     DEFINE_PROP_END_OF_LIST(),
 };
 

include/hw/arm/fsl-imx6ul.h

diff --git a/include/hw/arm/fsl-imx6ul.h b/include/hw/arm/fsl-imx6ul.h
index 1952cb9..9ee15ae 100644
--- a/include/hw/arm/fsl-imx6ul.h
+++ b/include/hw/arm/fsl-imx6ul.h
@@ -89,6 +89,7 @@
     MemoryRegion       ocram_alias;
 
     uint32_t           phy_num[FSL_IMX6UL_NUM_ETHS];
+    bool               phy_connected[FSL_IMX6UL_NUM_ETHS];
 };
 
 enum FslIMX6ULMemoryMap {