| Message ID | 1444663237-238302-3-git-send-email-john.garry@huawei.com |
|---|---|
| State | New |
| Headers | show |
On Mon, Oct 12, 2015 at 10:20 AM, John Garry <john.garry@huawei.com> wrote: > Add devicetree bindings for HiSilicon SAS driver. In the future, please use get_maintainers.pl. > Signed-off-by: John Garry <john.garry@huawei.com> > --- > .../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 We don't do indexes in DT (mostly). Why do you need this? > + - 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 Within the above register range? If so and if this varies, then that implies there is more than 1 version of IP. In that case you should have a more specific compatible string. How long is this property I count 3 cells here, but the example has 5. Define what each cell corresponds to specifically. > + > + - 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 > > -- > To unsubscribe from this list: send the line "unsubscribe devicetree" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 16/10/2015 14:47, Rob Herring wrote: > On Mon, Oct 12, 2015 at 10:20 AM, John Garry <john.garry@huawei.com> wrote: >> Add devicetree bindings for HiSilicon SAS driver. > > In the future, please use get_maintainers.pl. > Will do. >> Signed-off-by: John Garry <john.garry@huawei.com> >> --- >> .../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 > > We don't do indexes in DT (mostly). Why do you need this? We don't strictly require it. A soc may have multiple instances of this IP, so having an index is useful for memory pools/workqueue/etc name string associated with each instance. > >> + - 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 > > Within the above register range? If so and if this varies, then that > implies there is more than 1 version of IP. In that case you should > have a more specific compatible string. > The registers in the second region are for syscon register offsets. See last note, below. > How long is this property I count 3 cells here, but the example has 5. > Define what each cell corresponds to specifically. > We will add all the cells to the decription, which are: Reset assert, clock disable, reset status, reset de-assert, and clock enable. >> + >> + - 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>; We have decided to remove the second memory region and access the relevant memories through syscon interface. >> + 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 >> >> -- >> To unsubscribe from this list: send the line "unsubscribe devicetree" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > . > Thanks, John -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 10/19/2015 06:48 PM, John Garry wrote: > On 16/10/2015 14:47, Rob Herring wrote: >>> + - 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 >> >> Within the above register range? If so and if this varies, then that >> implies there is more than 1 version of IP. In that case you should >> have a more specific compatible string. >> > The registers in the second region are for syscon register offsets. See > last note, below. > >> How long is this property I count 3 cells here, but the example has 5. >> Define what each cell corresponds to specifically. >> > We will add all the cells to the decription, which are: > Reset assert, clock disable, reset status, reset de-assert, and clock > enable. >>> + We have switch to using syscon, The dts has been changed to sas_ctrl0: sas_ctrl@c0000000 { compatible = "hisilicon,sas-ctrl", "syscon"; reg = <0x0 0xc0000000 0x0 0x10000>; }; sas0: sas@c1000000 { compatible = "hisilicon,sas-controller-v1"; reg = <0x0 0xc1000000 0x0 0x10000>; hisilicon,sas-syscon = <&sas_ctrl0>; ctrl-reg = <0xa60 0x33c 0x5a30 0xa64 0x338>; ctrl-reg contains several regs in sas-ctrl, which need to be accessed since some complicated requirement of the silicon. Have considered using hisilicon,sas-syscon = <&sas_ctrl0 0xa60 0x33c 0x5a30 0xa64 0x338>; But of_property_read_u32_array cat not get array from index 1. Then we have to use of_property_read_u32_index one by one. So instead we add additional ctrl-reg, and get the array one time via of_property_read_u32_array. Thanks -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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"; + };
Add devicetree bindings for HiSilicon SAS driver. Signed-off-by: John Garry <john.garry@huawei.com> --- .../devicetree/bindings/scsi/hisilicon-sas.txt | 63 ++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 Documentation/devicetree/bindings/scsi/hisilicon-sas.txt