On 09/11/2015 18:01, Rob Herring wrote:
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
features/bugs.
How about "hisilicon,hip05-sas-v1"?
+ - 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.
We plan to remove this node now as it will be defined in the platform dt
bindings:
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/tree/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt#n174
Rob
Thanks,
John
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