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author | Sascha Hauer <s.hauer@pengutronix.de> | 2019-08-19 08:56:24 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-08-19 08:56:24 +0200 |
commit | 355884b413b1c2546c04e397d6a480efb27ae811 (patch) | |
tree | 7831dfbd8ee4e61c69be7d101134eb54a5810281 /dts/Bindings/misc/intel,ixp4xx-ahb-queue-manager.yaml | |
parent | 6940ba22c66ac1c713500027bf5f6832442a1410 (diff) | |
download | barebox-355884b413b1c2546c04e397d6a480efb27ae811.tar.gz barebox-355884b413b1c2546c04e397d6a480efb27ae811.tar.xz |
dts: update to v5.3-rc2
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/misc/intel,ixp4xx-ahb-queue-manager.yaml')
-rw-r--r-- | dts/Bindings/misc/intel,ixp4xx-ahb-queue-manager.yaml | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/dts/Bindings/misc/intel,ixp4xx-ahb-queue-manager.yaml b/dts/Bindings/misc/intel,ixp4xx-ahb-queue-manager.yaml new file mode 100644 index 0000000000..0ea21a6f70 --- /dev/null +++ b/dts/Bindings/misc/intel,ixp4xx-ahb-queue-manager.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2019 Linaro Ltd. +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/misc/intel,ixp4xx-ahb-queue-manager.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Intel IXP4xx AHB Queue Manager + +maintainers: + - Linus Walleij <linus.walleij@linaro.org> + +description: | + The IXP4xx AHB Queue Manager maintains queues as circular buffers in + an 8KB embedded SRAM along with hardware pointers. It is used by both + the XScale processor and the NPEs (Network Processing Units) in the + IXP4xx for accelerating queues, especially for networking. Clients pick + queues from the queue manager with foo-queue = <&qmgr N> where the + &qmgr is a phandle to the queue manager and N is the queue resource + number. The queue resources available and their specific purpose + on a certain IXP4xx system will vary. + +properties: + compatible: + items: + - const: intel,ixp4xx-ahb-queue-manager + + reg: + maxItems: 1 + + interrupts: + items: + - description: Interrupt for queues 0-31 + - description: Interrupt for queues 32-63 + +required: + - compatible + - reg + - interrupts + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + + qmgr: queue-manager@60000000 { + compatible = "intel,ixp4xx-ahb-queue-manager"; + reg = <0x60000000 0x4000>; + interrupts = <3 IRQ_TYPE_LEVEL_HIGH>, <4 IRQ_TYPE_LEVEL_HIGH>; + }; |