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authorOlof Johansson <olof@lixom.net>2014-07-18 22:16:15 -0700
committerOlof Johansson <olof@lixom.net>2014-07-18 22:16:48 -0700
commit412a9bbd1291e6ef0f71bfdf9fbffaac349d5130 (patch)
treed0a0a1c9a35360a61a352683f13bf2b946ec2a80 /Documentation/devicetree/bindings/arm
parentc6ffdc07411d982972fce6b4bfbd1c8b96990a48 (diff)
parent3c9464ed75d6c15ee864da6d8f6a4cd3b0f2c934 (diff)
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Merge tag 'omap-for-v3.17/dt-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt
Merge "omap dts changes for v3.17 merge window, part1" from Tony Lindgren: First set of .dts changes for omaps for v3.17 merge window: - Enable irqchip crossbar interrupt mapping. These changes are based on an immutable irqchip branch set up by Jason Cooper to make it easier to merge the related .dts changes. - Removal of omap2 related static clock data that now comes from device tree. - Enabling of PHY regulators for various omaps - Enabling of PCIe for dra7 - Add support for am437x starterkit - Enable audio for for omap5 - Enable display and am335x-evmsk * tag 'omap-for-v3.17/dt-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (43 commits) ARM: DTS: omap5-uevm: Enable basic audio (McPDM <-> twl6040) ARM: DTS: omap5-uevm: Add node for twl6040 audio codec ARM: DTS: omap5-uevm: Enable palmas clk32kgaudio clock ARM: dts: dra7: Add dt data for PCIe controller ARM: dts: dra7: Add dt data for PCIe PHY ARM: dts: dra7: Add dt data for PCIe PHY control module ARM: dts: dra7xx-clocks: Add missing clocks for second PCIe PHY instance ARM: dts: dra7xx-clocks: rename pcie clocks to accommodate second PHY instance ARM: dts: dra7xx-clocks: Add missing 32KHz clocks used for PHY ARM: dts: dra7xx-clocks: Change the parent of apll_pcie_in_clk_mux to dpll_pcie_ref_m2ldo_ck ARM: dts: dra7xx-clocks: Add divider table to optfclk_pciephy_div clock ARM: dts: dra7-evm: Add regulator information to USB2 PHYs ARM: omap2plus_defconfig: enable TPS65218 configs ARM: dts: AM437x: Add TPS65218 device tree nodes ARM: dts: AM437x: Fix i2c nodes indentation ARM: dts: AM43x: Add TPS65218 device tree nodes ARM: dts: Add devicetree for Gumstix Pepper board ARM: dts: dra7: add crossbar device binding ARM: dts: dra7: add routable-irqs property for gic node ARM: OMAP24xx: clock: remove legacy clock data ... Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'Documentation/devicetree/bindings/arm')
-rw-r--r--Documentation/devicetree/bindings/arm/omap/crossbar.txt36
-rw-r--r--Documentation/devicetree/bindings/arm/omap/omap.txt3
-rw-r--r--Documentation/devicetree/bindings/arm/omap/prcm.txt65
3 files changed, 104 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/omap/crossbar.txt b/Documentation/devicetree/bindings/arm/omap/crossbar.txt
index fb88585..4139db3 100644
--- a/Documentation/devicetree/bindings/arm/omap/crossbar.txt
+++ b/Documentation/devicetree/bindings/arm/omap/crossbar.txt
@@ -10,6 +10,7 @@ Required properties:
- compatible : Should be "ti,irq-crossbar"
- reg: Base address and the size of the crossbar registers.
- ti,max-irqs: Total number of irqs available at the interrupt controller.
+- ti,max-crossbar-sources: Maximum number of crossbar sources that can be routed.
- ti,reg-size: Size of a individual register in bytes. Every individual
register is assumed to be of same size. Valid sizes are 1, 2, 4.
- ti,irqs-reserved: List of the reserved irq lines that are not muxed using
@@ -17,11 +18,46 @@ Required properties:
so crossbar bar driver should not consider them as free
lines.
+Optional properties:
+- ti,irqs-skip: This is similar to "ti,irqs-reserved", but these are for
+ SOC-specific hard-wiring of those irqs which unexpectedly bypasses the
+ crossbar. These irqs have a crossbar register, but still cannot be used.
+
+- ti,irqs-safe-map: integer which maps to a safe configuration to use
+ when the interrupt controller irq is unused (when not provided, default is 0)
+
Examples:
crossbar_mpu: @4a020000 {
compatible = "ti,irq-crossbar";
reg = <0x4a002a48 0x130>;
ti,max-irqs = <160>;
+ ti,max-crossbar-sources = <400>;
ti,reg-size = <2>;
ti,irqs-reserved = <0 1 2 3 5 6 131 132 139 140>;
+ ti,irqs-skip = <10 133 139 140>;
};
+
+Consumer:
+========
+See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt and
+Documentation/devicetree/bindings/arm/gic.txt for further details.
+
+An interrupt consumer on an SoC using crossbar will use:
+ interrupts = <GIC_SPI request_number interrupt_level>
+When the request number is between 0 to that described by
+"ti,max-crossbar-sources", it is assumed to be a crossbar mapping. If the
+request_number is greater than "ti,max-crossbar-sources", then it is mapped as a
+quirky hardware mapping direct to GIC.
+
+Example:
+ device_x@0x4a023000 {
+ /* Crossbar 8 used */
+ interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+ ...
+ };
+
+ device_y@0x4a033000 {
+ /* Direct mapped GIC SPI 1 used */
+ interrupts = <GIC_SPI DIRECT_IRQ(1) IRQ_TYPE_LEVEL_HIGH>;
+ ...
+ };
diff --git a/Documentation/devicetree/bindings/arm/omap/omap.txt b/Documentation/devicetree/bindings/arm/omap/omap.txt
index d22b216..0edc903 100644
--- a/Documentation/devicetree/bindings/arm/omap/omap.txt
+++ b/Documentation/devicetree/bindings/arm/omap/omap.txt
@@ -129,6 +129,9 @@ Boards:
- AM437x GP EVM
compatible = "ti,am437x-gp-evm", "ti,am4372", "ti,am43"
+- AM437x SK EVM: AM437x StarterKit Evaluation Module
+ compatible = "ti,am437x-sk-evm", "ti,am4372", "ti,am43"
+
- DRA742 EVM: Software Development Board for DRA742
compatible = "ti,dra7-evm", "ti,dra742", "ti,dra74", "ti,dra7"
diff --git a/Documentation/devicetree/bindings/arm/omap/prcm.txt b/Documentation/devicetree/bindings/arm/omap/prcm.txt
new file mode 100644
index 0000000..79074da
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/omap/prcm.txt
@@ -0,0 +1,65 @@
+OMAP PRCM bindings
+
+Power Reset and Clock Manager lists the device clocks and clockdomains under
+a DT hierarchy. Each TI SoC can have multiple PRCM entities listed for it,
+each describing one module and the clock hierarchy under it. see [1] for
+documentation about the individual clock/clockdomain nodes.
+
+[1] Documentation/devicetree/bindings/clock/ti/*
+
+Required properties:
+- compatible: Must be one of:
+ "ti,am3-prcm"
+ "ti,am3-scrm"
+ "ti,am4-prcm"
+ "ti,am4-scrm"
+ "ti,omap2-prcm"
+ "ti,omap2-scrm"
+ "ti,omap3-prm"
+ "ti,omap3-cm"
+ "ti,omap3-scrm"
+ "ti,omap4-cm1"
+ "ti,omap4-prm"
+ "ti,omap4-cm2"
+ "ti,omap4-scrm"
+ "ti,omap5-prm"
+ "ti,omap5-cm-core-aon"
+ "ti,omap5-scrm"
+ "ti,omap5-cm-core"
+ "ti,dra7-prm"
+ "ti,dra7-cm-core-aon"
+ "ti,dra7-cm-core"
+- reg: Contains PRCM module register address range
+ (base address and length)
+- clocks: clocks for this module
+- clockdomains: clockdomains for this module
+
+Example:
+
+cm: cm@48004000 {
+ compatible = "ti,omap3-cm";
+ reg = <0x48004000 0x4000>;
+
+ cm_clocks: clocks {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ cm_clockdomains: clockdomains {
+ };
+}
+
+&cm_clocks {
+ omap2_32k_fck: omap_32k_fck {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <32768>;
+ };
+};
+
+&cm_clockdomains {
+ core_l3_clkdm: core_l3_clkdm {
+ compatible = "ti,clockdomain";
+ clocks = <&sdrc_ick>;
+ };
+};
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