diff options
| -rw-r--r-- | Documentation/devicetree/bindings/arm/arm-boards | 30 | ||||
| -rw-r--r-- | arch/arm/boot/dts/integratorap.dts | 2 | ||||
| -rw-r--r-- | arch/arm/boot/dts/integratorcp.dts | 4 | ||||
| -rw-r--r-- | arch/arm/mach-integrator/integrator_ap.c | 8 | ||||
| -rw-r--r-- | arch/arm/mach-integrator/integrator_cp.c | 8 |
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; |