Add devicetree bindings for HiSilicon SAS driver.
Signed-off-by: John Garry <[email protected]>
---
.../devicetree/bindings/scsi/hisilicon-sas.txt | 63 ++++++++++++++++++++++
1 file changed, 63 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..472c022
--- /dev/null
+++ b/Documentation/devicetree/bindings/scsi/hisilicon-sas.txt
@@ -0,0 +1,63 @@
+* HiSilison 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
+
+ - controller-id : identifier for controller in the SoC
+
+ - reg : Address and length of the register sets for the device
+ - SAS controller registers
+ - SAS controller control registers
+
+ - reset-reg : offset to reset, status, and clock registers in control
registers
+
+ - 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
+ interrupts:
+ - Each phy has 3 interrupt sources:
+ - broadcast
+ - phyup
+ - abnormal
+ - Each completion queue has 1 interrupt source
+ - Each controller has 2 fatal interrupt sources:
+ - ECC
+ - AXI bus
+
+Example:
+ sas0: sas@c1000000 {
+ compatible = "hisilicon,sas-controller-v1";
+ controller-id = <0>;
+ reg = <0x0 0xc1000000 0x0 0x10000>,
+ <0x0 0xc0000000 0x0 0x10000>;
+ reset-reg = <0xa60 0x33c 0x5a30 0xa64 0x338>;
+ queue-count = <32>;
+ phy-count = <8>;
+ #interrupt-cells = <2>;
+ dma-coherent;
+ interrupt-parent = <&mbigen_dsa>;
+ interrupts = <259 4>, <263 4>,<264 4>,/* phy irq(0~79) */
+ <269 4>,<273 4>,<274 4>,/* phy irq(0~79) */
+ <279 4>,<283 4>,<284 4>,/* phy irq(0~79) */
+ <289 4>,<293 4>,<294 4>,/* phy irq(0~79) */
+ <299 4>,<303 4>,<304 4>,/* phy irq(0~79) */
+ <309 4>,<313 4>,<314 4>,/* phy irq(0~79) */
+ <319 4>,<323 4>,<324 4>,/* phy irq(0~79) */
+ <329 4>,<333 4>,<334 4>,/* phy irq(0~79) */
+ <336 1>,<337 1>,<338 1>,<339 1>,<340 1>,
+ <341 1>,<342 1>,<343 1>,/* cq irq (80~111) */
+ <344 1>,<345 1>,<346 1>,<347 1>,<348 1>,
+ <349 1>,<350 1>,<351 1>,/* cq irq (80~111) */
+ <352 1>,<353 1>,<354 1>,<355 1>,<356 1>,
+ <357 1>,<358 1>,<359 1>,/* cq irq (80~111) */
+ <360 1>,<361 1>,<362 1>,<363 1>,<364 1>,
+ <365 1>,<366 1>,<367 1>,/* cq irq (80~111) */
+ <376 4>,/* chip fatal error irq(120) */
+ <381 4>;/* chip fatal error irq(125) */
+ status = "okay";
+ };
--
1.9.1
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