Re: [PATCH v3 02/32] devicetree: bindings: scsi: HiSi SAS
From: Rob Herring
Date: Mon Nov 09 2015 - 13:01:50 EST
On Tue, Nov 10, 2015 at 12:32:07AM +0800, John Garry wrote:
> Add devicetree bindings for HiSilicon SAS driver.
> Signed-off-by: John Garry <john.garry@xxxxxxxxxx>
> Signed-off-by: Zhangfei Gao <zhangfei.gao@xxxxxxxxxx>
> .../devicetree/bindings/scsi/hisilicon-sas.txt | 81 ++++++++++++++++++++++
> 1 file changed, 81 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/scsi/hisilicon-sas.txt
> diff --git a/Documentation/devicetree/bindings/scsi/hisilicon-sas.txt b/Documentation/devicetree/bindings/scsi/hisilicon-sas.txt
> new file mode 100644
> index 0000000..2333cc3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/scsi/hisilicon-sas.txt
> @@ -0,0 +1,81 @@
> +* HiSilicon SAS controller
> +The HiSilicon SAS controller supports SAS/SATA.
> +Main node required properties:
> + - compatible : value should be as follows:
> + (a) "hisilicon,sas-controller-v1" for v1 of HiSilicon SAS controller IP
Please do a more specific compatible string with the SOC part number.
Same versions of IP blocks can have different integration/process
> + - sas-addr : array of 8 bytes for host SAS address
> + - reg : Address and length of the SAS register
> + - hisilicon,sas-syscon: phandle of syscon used for sas control
> + - ctrl-reset-reg : offset to controller reset register in ctrl reg
> + - ctrl-reset-sts-reg : offset to controller reset status register in ctrl reg
> + - ctrl-clock-ena-reg : offset to controller clock enable register in ctrl reg
> + - queue-count : number of delivery and completion queues in the controller
> + - phy-count : number of phys accessible by the controller
> + - interrupts : Interrupts for phys, completion queues, and fatal
> + sources; the interrupts are ordered in 3 groups, as follows:
> + - Phy interrupts
> + - Completion queue interrupts
> + - Fatal interrupts
> + Phy interrupts : Each phy has 3 interrupt sources:
> + - broadcast
> + - phyup
> + - abnormal
> + The phy interrupts are ordered into groups of 3 per phy
> + (broadcast, phyup, and abnormal) in increasing order.
> + Completion queue interrupts : each completion queue has 1
> + interrupt source. The interrupts are ordered in
> + increasing order.
> + Fatal interrupts : the fatal interrupts are ordered as follows:
> + - ECC
> + - AXI bus
> +* HiSilicon SAS syscon
> +Required properties:
> +- compatible: should be "hisilicon,sas-ctrl", "syscon"
Please add a more specific compatible here too.
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