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-rw-r--r--Documentation/devicetree/bindings/scsi/hisilicon-sas.txt21
1 files changed, 20 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/scsi/hisilicon-sas.txt b/Documentation/devicetree/bindings/scsi/hisilicon-sas.txt
index f67e761bcc18..bf2411f366e5 100644
--- a/Documentation/devicetree/bindings/scsi/hisilicon-sas.txt
+++ b/Documentation/devicetree/bindings/scsi/hisilicon-sas.txt
@@ -5,6 +5,7 @@ The HiSilicon SAS controller supports SAS/SATA.
Main node required properties:
- compatible : value should be as follows:
(a) "hisilicon,hip05-sas-v1" for v1 hw in hip05 chipset
+ (b) "hisilicon,hip06-sas-v2" for v2 hw in hip06 chipset
- 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
@@ -13,7 +14,7 @@ Main node required properties:
- 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
+ - interrupts : For v1 hw: Interrupts for phys, completion queues, and fatal
sources; the interrupts are ordered in 3 groups, as follows:
- Phy interrupts
- Completion queue interrupts
@@ -30,6 +31,24 @@ Main node required properties:
Fatal interrupts : the fatal interrupts are ordered as follows:
- ECC
- AXI bus
+ For v2 hw: Interrupts for phys, Sata, and completion queues;
+ the interrupts are ordered in 3 groups, as follows:
+ - Phy interrupts
+ - Sata interrupts
+ - Completion queue interrupts
+ Phy interrupts : Each controller has 2 phy interrupts:
+ - phy up/down
+ - channel interrupt
+ Sata interrupts : Each phy on the controller has 1 Sata
+ interrupt. The interrupts are ordered in increasing
+ order.
+ Completion queue interrupts : each completion queue has 1
+ interrupt source. The interrupts are ordered in
+ increasing order.
+
+Optional main node properties:
+ - hip06-sas-v2-quirk-amt : when set, indicates that the v2 controller has the
+ "am-max-transmissions" limitation.
Example:
sas0: sas@c1000000 {