2 files changed, 38 insertions, 6 deletions

diff --git a/arch/powerpc/boot/dts/p1021mds.dts b/arch/powerpc/boot/dts/p1021mds.dts
index 7fad2df25981..ad5b85269004 100644
--- a/arch/powerpc/boot/dts/p1021mds.dts
+++ b/arch/powerpc/boot/dts/p1021mds.dts
@@ -617,6 +617,7 @@
                 bus-frequency = <0>;
                 fsl,qe-num-riscs = <1>;
                 fsl,qe-num-snums = <28>;
+                status = "disabled"; /* no firmware loaded */
 
                 qeic: interrupt-controller@80 {
                         interrupt-controller;
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
index 35ab2b42d698..9dadcffd9947 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
@@ -158,6 +158,29 @@ static int mpc8568_mds_phy_fixups(struct phy_device *phydev)
 extern void __init mpc85xx_smp_init(void);
 #endif
 
+#ifdef CONFIG_QUICC_ENGINE
+static struct of_device_id mpc85xx_qe_ids[] __initdata = {
+        { .type = "qe", },
+        { .compatible = "fsl,qe", },
+        { },
+};
+
+static void __init mpc85xx_publish_qe_devices(void)
+{
+        struct device_node *np;
+
+        np = of_find_compatible_node(NULL, NULL, "fsl,qe");
+        if (!of_device_is_available(np)) {
+                of_node_put(np);
+                return;
+        }
+
+        of_platform_bus_probe(NULL, mpc85xx_qe_ids, NULL);
+}
+#else
+static void __init mpc85xx_publish_qe_devices(void) { }
+#endif /* CONFIG_QUICC_ENGINE */
+
 static void __init mpc85xx_mds_setup_arch(void)
 {
         struct device_node *np;
@@ -218,6 +241,11 @@ static void __init mpc85xx_mds_setup_arch(void)
                         return;
         }
 
+        if (!of_device_is_available(np)) {
+                of_node_put(np);
+                return;
+        }
+
         qe_reset();
         of_node_put(np);
 
@@ -369,8 +397,6 @@ static struct of_device_id mpc85xx_ids[] = {
         { .type = "soc", },
         { .compatible = "soc", },
         { .compatible = "simple-bus", },
-        { .type = "qe", },
-        { .compatible = "fsl,qe", },
         { .compatible = "gianfar", },
         { .compatible = "fsl,rapidio-delta", },
         { .compatible = "fsl,mpc8548-guts", },
@@ -382,8 +408,6 @@ static struct of_device_id p1021_ids[] = {
         { .type = "soc", },
         { .compatible = "soc", },
         { .compatible = "simple-bus", },
-        { .type = "qe", },
-        { .compatible = "fsl,qe", },
         { .compatible = "gianfar", },
         {},
 };
@@ -395,16 +419,16 @@ static int __init mpc85xx_publish_devices(void)
         if (machine_is(mpc8569_mds))
                 simple_gpiochip_init("fsl,mpc8569mds-bcsr-gpio");
 
-        /* Publish the QE devices */
         of_platform_bus_probe(NULL, mpc85xx_ids, NULL);
+        mpc85xx_publish_qe_devices();
 
         return 0;
 }
 
 static int __init p1021_publish_devices(void)
 {
-        /* Publish the QE devices */
         of_platform_bus_probe(NULL, p1021_ids, NULL);
+        mpc85xx_publish_qe_devices();
 
         return 0;
 }
@@ -443,12 +467,19 @@ static void __init mpc85xx_mds_pic_init(void)
         mpic_init(mpic);
 
 #ifdef CONFIG_QUICC_ENGINE
+        np = of_find_compatible_node(NULL, NULL, "fsl,qe");
+        if (!of_device_is_available(np)) {
+                of_node_put(np);
+                return;
+        }
+
         np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
         if (!np) {
                 np = of_find_node_by_type(NULL, "qeic");
                 if (!np)
                         return;
         }
+
         if (machine_is(p1021_mds))
                 qe_ic_init(np, 0, qe_ic_cascade_low_mpic,
                                 qe_ic_cascade_high_mpic);