From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- .../devicetree/bindings/mailbox/altera-mailbox.txt | 49 ++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 kernel/Documentation/devicetree/bindings/mailbox/altera-mailbox.txt (limited to 'kernel/Documentation/devicetree/bindings/mailbox/altera-mailbox.txt') diff --git a/kernel/Documentation/devicetree/bindings/mailbox/altera-mailbox.txt b/kernel/Documentation/devicetree/bindings/mailbox/altera-mailbox.txt new file mode 100644 index 000000000..c2619797c --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/mailbox/altera-mailbox.txt @@ -0,0 +1,49 @@ +Altera Mailbox Driver +===================== + +Required properties: +- compatible : "altr,mailbox-1.0". +- reg : physical base address of the mailbox and length of + memory mapped region. +- #mbox-cells: Common mailbox binding property to identify the number + of cells required for the mailbox specifier. Should be 1. + +Optional properties: +- interrupt-parent : interrupt source phandle. +- interrupts : interrupt number. The interrupt specifier format + depends on the interrupt controller parent. + +Example: + mbox_tx: mailbox@0x100 { + compatible = "altr,mailbox-1.0"; + reg = <0x100 0x8>; + interrupt-parent = < &gic_0 >; + interrupts = <5>; + #mbox-cells = <1>; + }; + + mbox_rx: mailbox@0x200 { + compatible = "altr,mailbox-1.0"; + reg = <0x200 0x8>; + interrupt-parent = < &gic_0 >; + interrupts = <6>; + #mbox-cells = <1>; + }; + +Mailbox client +=============== +"mboxes" and the optional "mbox-names" (please see +Documentation/devicetree/bindings/mailbox/mailbox.txt for details). Each value +of the mboxes property should contain a phandle to the mailbox controller +device node and second argument is the channel index. It must be 0 (hardware +support only one channel).The equivalent "mbox-names" property value can be +used to give a name to the communication channel to be used by the client user. + +Example: + mclient0: mclient0@0x400 { + compatible = "client-1.0"; + reg = <0x400 0x10>; + mbox-names = "mbox-tx", "mbox-rx"; + mboxes = <&mbox_tx 0>, + <&mbox_rx 0>; + }; -- cgit 1.2.3-korg