diff mbox

[v3,02/32] devicetree: bindings: scsi: HiSi SAS

Message ID 1447086757-147706-3-git-send-email-john.garry@huawei.com (mailing list archive)
State Superseded, archived
Headers show

Commit Message

John Garry Nov. 9, 2015, 4:32 p.m. UTC
Add devicetree bindings for HiSilicon SAS driver.

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
---
 .../devicetree/bindings/scsi/hisilicon-sas.txt     | 81 ++++++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/scsi/hisilicon-sas.txt

Comments

Rob Herring (Arm) Nov. 9, 2015, 6:01 p.m. UTC | #1
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@huawei.com>
> Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
> ---
>  .../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.

> +  - 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.

Rob
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John Garry Nov. 10, 2015, 11:09 a.m. UTC | #2
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@huawei.com>
>> Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
>> ---
>>   .../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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Rob Herring (Arm) Nov. 10, 2015, 1:16 p.m. UTC | #3
On Tue, Nov 10, 2015 at 5:09 AM, John Garry <john.garry@huawei.com> wrote:
> 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@huawei.com>
>>> Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
>>> ---
>>>   .../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"?

That's fine.

Rob
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diff mbox

Patch

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
+  - 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"
+- reg: offset and length of the syscon sas-ctrl registers
+
+
+Example:
+	sas_ctrl0: sas_ctrl@c0000000 {
+		compatible = "hisilicon,sas-ctrl", "syscon";
+		reg = <0x0 0xc0000000 0x0 0x10000>;
+	};
+
+	sas0: sas@c1000000 {
+		compatible = "hisilicon,sas-controller-v1";
+		sas-addr = [50 01 88 20 16 00 00 0a];
+		reg = <0x0 0xc1000000 0x0 0x10000>;
+		hisilicon,sas-syscon = <&sas_ctrl0>;
+		ctrl-reset-reg = <0xa60>;
+		ctrl-reset-sts-reg = <0x5a30>;
+		ctrl-clock-ena-reg = <0x338>;
+		queue-count = <32>;
+		phy-count = <8>;
+		dma-coherent;
+		interrupt-parent = <&mbigen_dsa>;
+		interrupts =    <259 4>,<263 4>,<264 4>,/* phy0 */
+				<269 4>,<273 4>,<274 4>,/* phy1 */
+				<279 4>,<283 4>,<284 4>,/* phy2 */
+				<289 4>,<293 4>,<294 4>,/* phy3 */
+				<299 4>,<303 4>,<304 4>,/* phy4 */
+				<309 4>,<313 4>,<314 4>,/* phy5 */
+				<319 4>,<323 4>,<324 4>,/* phy6 */
+				<329 4>,<333 4>,<334 4>,/* phy7 */
+				<336 1>,<337 1>,<338 1>,/* cq0-2 */
+				<339 1>,<340 1>,<341 1>,/* cq3-5 */
+				<342 1>,<343 1>,<344 1>,/* cq6-8 */
+				<345 1>,<346 1>,<347 1>,/* cq9-11 */
+				<348 1>,<349 1>,<350 1>,/* cq12-14 */
+				<351 1>,<352 1>,<353 1>,/* cq15-17 */
+				<354 1>,<355 1>,<356 1>,/* cq18-20 */
+				<357 1>,<358 1>,<359 1>,/* cq21-23 */
+				<360 1>,<361 1>,<362 1>,/* cq24-26 */
+				<363 1>,<364 1>,<365 1>,/* cq27-29 */
+				<366 1>,<367 1>/* cq30-31 */
+				<376 4>,/* fatal ecc */
+				<381 4>;/* fatal axi */
+		status = "disabled";
+	};