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dt-bindings: PCI: Add Amazon's Annapurna Labs PCIe host bridge binding

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Document Amazon's Annapurna Labs PCIe host bridge.

Signed-off-by: Jonathan Chocron <jonnyc@amazon.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Andrew Murray <andrew.murray@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Jonathan Chocron 2019-09-12 16:02:36 +03:00 committed by Lorenzo Pieralisi
parent 738cb37b01
commit ed4381da34
2 changed files with 48 additions and 1 deletions
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Documentation/devicetree/bindings/pci/pcie-al.txt Normal file
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* Amazon Annapurna Labs PCIe host bridge
Amazon's Annapurna Labs PCIe Host Controller is based on the Synopsys DesignWare
PCI core. It inherits common properties defined in
Documentation/devicetree/bindings/pci/designware-pcie.txt.
Properties of the host controller node that differ from it are:
- compatible:
Usage: required
Value type: <stringlist>
Definition: Value should contain
- "amazon,al-alpine-v2-pcie" for alpine_v2
- "amazon,al-alpine-v3-pcie" for alpine_v3
- reg:
Usage: required
Value type: <prop-encoded-array>
Definition: Register ranges as listed in the reg-names property
- reg-names:
Usage: required
Value type: <stringlist>
Definition: Must include the following entries
- "config" PCIe ECAM space
- "controller" AL proprietary registers
- "dbi" Designware PCIe registers
Example:
pcie-external0: pcie@fb600000 {
compatible = "amazon,al-alpine-v3-pcie";
reg = <0x0 0xfb600000 0x0 0x00100000
0x0 0xfd800000 0x0 0x00010000
0x0 0xfd810000 0x0 0x00001000>;
reg-names = "config", "controller", "dbi";
bus-range = <0 255>;
device_type = "pci";
#address-cells = <3>;
#size-cells = <2>;
#interrupt-cells = <1>;
interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
interrupt-map-mask = <0x00 0 0 7>;
interrupt-map = <0x0000 0 0 1 &gic GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>; /* INTa */
ranges = <0x02000000 0x0 0xc0010000 0x0 0xc0010000 0x0 0x07ff0000>;
};

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MAINTAINERS
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@ -12448,10 +12448,11 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/pci.git/
S: Supported
F: drivers/pci/controller/
PCIE DRIVER FOR ANNAPURNA LABS
PCIE DRIVER FOR AMAZON ANNAPURNA LABS
M: Jonathan Chocron <jonnyc@amazon.com>
L: linux-pci@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/pci/pcie-al.txt
F: drivers/pci/controller/dwc/pcie-al.c
PCIE DRIVER FOR AMLOGIC MESON