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-rw-r--r--Documentation/devicetree/bindings/arm/arm-boards30
-rw-r--r--arch/arm/boot/dts/integratorap.dts2
-rw-r--r--arch/arm/boot/dts/integratorcp.dts4
-rw-r--r--arch/arm/mach-integrator/integrator_ap.c8
-rw-r--r--arch/arm/mach-integrator/integrator_cp.c8
5 files changed, 34 insertions, 18 deletions
diff --git a/Documentation/devicetree/bindings/arm/arm-boards b/Documentation/devicetree/bindings/arm/arm-boards
index 0ebf3d94e8bf..5fac246a9530 100644
--- a/Documentation/devicetree/bindings/arm/arm-boards
+++ b/Documentation/devicetree/bindings/arm/arm-boards
@@ -19,18 +19,22 @@ Required nodes:
- regs: the location and size of the core module registers, one
range of 0x200 bytes.
-- cpcon/syscon: the root node the Integrator/CP must have a /cpcon
- node pointing to the CP control registers, and the Integrator/AP
- must have a /syscon node pointing to the Integrator/AP system
- controller. The AP syscon node must include the logical module
- interrupts.
-
-In the root node the Integrator/CP must have a /cpcon node pointing
-to the CP control registers, and the Integrator/AP must have a
-/syscon node pointing to the Integrator/AP system controller.
-The AP syscon node must include the logic module interrupts, stated
-in order of module instance <module 0, module 1, module 2 ...>
-example:
+- syscon: the root node of the Integrator platforms must have a
+ system controller node pointong to the control registers,
+ with the compatible string
+ "arm,integrator-ap-syscon"
+ "arm,integrator-cp-syscon"
+ respectively.
+
+ Required properties for the system controller:
+ - regs: the location and size of the system controller registers,
+ one range of 0x100 bytes.
+
+ Required properties for the AP system controller:
+ - interrupts: the AP syscon node must include the logical module
+ interrupts, stated in order of module instance <module 0>,
+ <module 1>, <module 2> ... for the CP system controller this
+ is not required not of any use.
/dts-v1/;
/include/ "integrator.dtsi"
@@ -45,7 +49,7 @@ example:
};
syscon {
- /* AP system controller registers */
+ compatible = "arm,integrator-ap-syscon";
reg = <0x11000000 0x100>;
interrupt-parent = <&pic>;
/* These are the logic module IRQs */
diff --git a/arch/arm/boot/dts/integratorap.dts b/arch/arm/boot/dts/integratorap.dts
index 453ab0ea4d2b..e6be9315ff0a 100644
--- a/arch/arm/boot/dts/integratorap.dts
+++ b/arch/arm/boot/dts/integratorap.dts
@@ -19,7 +19,7 @@
};
syscon {
- /* AP system controller registers */
+ compatible = "arm,integrator-ap-syscon";
reg = <0x11000000 0x100>;
interrupt-parent = <&pic>;
/* These are the logical module IRQs */
diff --git a/arch/arm/boot/dts/integratorcp.dts b/arch/arm/boot/dts/integratorcp.dts
index ff1aea0ee043..a3a06b893237 100644
--- a/arch/arm/boot/dts/integratorcp.dts
+++ b/arch/arm/boot/dts/integratorcp.dts
@@ -18,8 +18,8 @@
bootargs = "root=/dev/ram0 console=ttyAMA0,38400n8 earlyprintk";
};
- cpcon {
- /* CP controller registers */
+ syscon {
+ compatible = "arm,integrator-cp-syscon";
reg = <0xcb000000 0x100>;
};
diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index ece47556afe6..d50dc2dbfd89 100644
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -470,6 +470,11 @@ static struct of_dev_auxdata ap_auxdata_lookup[] __initdata = {
{ /* sentinel */ },
};
+static const struct of_device_id ap_syscon_match[] = {
+ { .compatible = "arm,integrator-ap-syscon"},
+ { },
+};
+
static void __init ap_init_of(void)
{
unsigned long sc_dec;
@@ -486,7 +491,8 @@ static void __init ap_init_of(void)
root = of_find_node_by_path("/");
if (!root)
return;
- syscon = of_find_node_by_path("/syscon");
+
+ syscon = of_find_matching_node(root, ap_syscon_match);
if (!syscon)
return;
diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c
index 422c3f9b4163..1df6e7602cad 100644
--- a/arch/arm/mach-integrator/integrator_cp.c
+++ b/arch/arm/mach-integrator/integrator_cp.c
@@ -286,6 +286,11 @@ static struct of_dev_auxdata intcp_auxdata_lookup[] __initdata = {
{ /* sentinel */ },
};
+static const struct of_device_id intcp_syscon_match[] = {
+ { .compatible = "arm,integrator-cp-syscon"},
+ { },
+};
+
static void __init intcp_init_of(void)
{
struct device_node *root;
@@ -300,7 +305,8 @@ static void __init intcp_init_of(void)
root = of_find_node_by_path("/");
if (!root)
return;
- cpcon = of_find_node_by_path("/cpcon");
+
+ cpcon = of_find_matching_node(root, intcp_syscon_match);
if (!cpcon)
return;