Add DT bindings documentation for the rk3288 crypto drivers.
Signed-off-by: Zain Wang <[email protected]>
---
.../devicetree/bindings/crypto/rk-crypto.txt | 31 ++++++++++++++++++++++
1 file changed, 31 insertions(+)
create mode 100644 Documentation/devicetree/bindings/crypto/rk-crypto.txt
diff --git a/Documentation/devicetree/bindings/crypto/rk-crypto.txt b/Documentation/devicetree/bindings/crypto/rk-crypto.txt
new file mode 100644
index 0000000..1e50768
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/rk-crypto.txt
@@ -0,0 +1,31 @@
+Rockchip Electronics And Security Accelerator
+
+Required properties:
+- compatible: should be "rockchip,crypto"
+- reg: base physical address of the engine and length of memory mapped
+ region.
+- interrupts: interrupt number
+- clocks: clock specifiers
+- clock-names: "aclk_crypto" used to clock data
+ "hclk_crypto" used to clock data
+ "srst_crypto" used to clock crypto accelerator
+ "apb_pclk" used to clock dma
+-status: Enable
+
+Examples:
+
+ crypto: cypto-controller@ff8a0000 {
+ compatible = "rockchip,crypto";
+ reg = <0xff8a0000 0x4000>;
+ interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru ACLK_CRYPTO>,
+ <&cru HCLK_CRYPTO>,
+ <&cru SRST_CRYPTO>,
+ <&cru ACLK_DMAC1>;
+
+ clock-names = "aclk_crypto",
+ "hclk_crypto",
+ "srst_crypto",
+ "apb_pclk";
+ status = "okay";
+ };
--
1.9.1
On Fri, Oct 30, 2015 at 04:22:49PM +0800, Zain Wang wrote:
> Add DT bindings documentation for the rk3288 crypto drivers.
>
> Signed-off-by: Zain Wang <[email protected]>
> ---
> .../devicetree/bindings/crypto/rk-crypto.txt | 31 ++++++++++++++++++++++
> 1 file changed, 31 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/crypto/rk-crypto.txt
>
> diff --git a/Documentation/devicetree/bindings/crypto/rk-crypto.txt b/Documentation/devicetree/bindings/crypto/rk-crypto.txt
> new file mode 100644
> index 0000000..1e50768
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/crypto/rk-crypto.txt
> @@ -0,0 +1,31 @@
> +Rockchip Electronics And Security Accelerator
> +
> +Required properties:
> +- compatible: should be "rockchip,crypto"
Choose a more specific name. Rockchip could easily come up with another
crypto accelerator later.
> +- reg: base physical address of the engine and length of memory mapped
> + region.
> +- interrupts: interrupt number
> +- clocks: clock specifiers
> +- clock-names: "aclk_crypto" used to clock data
> + "hclk_crypto" used to clock data
> + "srst_crypto" used to clock crypto accelerator
> + "apb_pclk" used to clock dma
> +-status: Enable
No need to mention the status property.
Thanks,
Mark.
> +
> +Examples:
> +
> + crypto: cypto-controller@ff8a0000 {
> + compatible = "rockchip,crypto";
> + reg = <0xff8a0000 0x4000>;
> + interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&cru ACLK_CRYPTO>,
> + <&cru HCLK_CRYPTO>,
> + <&cru SRST_CRYPTO>,
> + <&cru ACLK_DMAC1>;
> +
> + clock-names = "aclk_crypto",
> + "hclk_crypto",
> + "srst_crypto",
> + "apb_pclk";
> + status = "okay";
> + };
> --
> 1.9.1
>
>
Hi,
Am Freitag, 30. Oktober 2015, 16:22:49 schrieb Zain Wang:
> Add DT bindings documentation for the rk3288 crypto drivers.
>
> Signed-off-by: Zain Wang <[email protected]>
> ---
> .../devicetree/bindings/crypto/rk-crypto.txt | 31 ++++++++++++++++++++++
> 1 file changed, 31 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/crypto/rk-crypto.txt
>
> diff --git a/Documentation/devicetree/bindings/crypto/rk-crypto.txt b/Documentation/devicetree/bindings/crypto/rk-crypto.txt
> new file mode 100644
> index 0000000..1e50768
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/crypto/rk-crypto.txt
> @@ -0,0 +1,31 @@
> +Rockchip Electronics And Security Accelerator
> +
> +Required properties:
> +- compatible: should be "rockchip,crypto"
> +- reg: base physical address of the engine and length of memory mapped
> + region.
> +- interrupts: interrupt number
> +- clocks: clock specifiers
> +- clock-names: "aclk_crypto" used to clock data
> + "hclk_crypto" used to clock data
> + "srst_crypto" used to clock crypto accelerator
> + "apb_pclk" used to clock dma
The TRM area of the crypto IP block does not specifiy any special naming for
its clocks, but as a general rule clock names are in the scope of the ip block
so there is no need to add _crypto to every one of them :-) .
I'd suggest clock-names as "aclk", "hclk", "crypto" for the devicetree, with
crypto being the clock that actually drives the operation.
Secondly, why do you need to drive the clock of the peripheral dma-
controller itself (your apb_pclk)? The documentation in the TRM is
quite sparse, so this might very well be justified, but it looks odd that
you need to control the dmac1-clock when it looks like the crypto block
is doing its own dma and neither system-dma has any crypto-related
channel.
So I'd really like some explanation for this :-)
Thanks
Heiko
Hi Mark
On 2015年10月30日 22:03, Mark Rutland wrote:
> On Fri, Oct 30, 2015 at 04:22:49PM +0800, Zain Wang wrote:
>> Add DT bindings documentation for the rk3288 crypto drivers.
>>
>> Signed-off-by: Zain Wang <[email protected]>
>> ---
>> .../devicetree/bindings/crypto/rk-crypto.txt | 31 ++++++++++++++++++++++
>> 1 file changed, 31 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/crypto/rk-crypto.txt
>>
>> diff --git a/Documentation/devicetree/bindings/crypto/rk-crypto.txt b/Documentation/devicetree/bindings/crypto/rk-crypto.txt
>> new file mode 100644
>> index 0000000..1e50768
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/crypto/rk-crypto.txt
>> @@ -0,0 +1,31 @@
>> +Rockchip Electronics And Security Accelerator
>> +
>> +Required properties:
>> +- compatible: should be "rockchip,crypto"
> Choose a more specific name. Rockchip could easily come up with another
> crypto accelerator later.
ok! done.
rk3288_crypto may be better than crypto.
>> +- reg: base physical address of the engine and length of memory mapped
>> + region.
>> +- interrupts: interrupt number
>> +- clocks: clock specifiers
>> +- clock-names: "aclk_crypto" used to clock data
>> + "hclk_crypto" used to clock data
>> + "srst_crypto" used to clock crypto accelerator
>> + "apb_pclk" used to clock dma
>> +-status: Enable
> No need to mention the status property.
ok! done!
> Thanks,
> Mark.
>
>> +
>> +Examples:
>> +
>> + crypto: cypto-controller@ff8a0000 {
>> + compatible = "rockchip,crypto";
>> + reg = <0xff8a0000 0x4000>;
>> + interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
>> + clocks = <&cru ACLK_CRYPTO>,
>> + <&cru HCLK_CRYPTO>,
>> + <&cru SRST_CRYPTO>,
>> + <&cru ACLK_DMAC1>;
>> +
>> + clock-names = "aclk_crypto",
>> + "hclk_crypto",
>> + "srst_crypto",
>> + "apb_pclk";
>> + status = "okay";
>> + };
>> --
>> 1.9.1
>>
>>
>
Thanks
Zain
On Mon, Nov 2, 2015 at 3:13 AM, Zain <[email protected]> wrote:
> Hi Mark
>
> On 2015年10月30日 22:03, Mark Rutland wrote:
>> On Fri, Oct 30, 2015 at 04:22:49PM +0800, Zain Wang wrote:
>>> Add DT bindings documentation for the rk3288 crypto drivers.
>>>
>>> Signed-off-by: Zain Wang <[email protected]>
>>> ---
>>> +Required properties:
>>> +- compatible: should be "rockchip,crypto"
>> Choose a more specific name. Rockchip could easily come up with another
>> crypto accelerator later.
> ok! done.
> rk3288_crypto may be better than crypto.
Yes, but use '-' not '_'.
Rob
Hi Mark,
On 2015年11月02日 23:39, Rob Herring wrote:
> On Mon, Nov 2, 2015 at 3:13 AM, Zain <[email protected]> wrote:
>> Hi Mark
>>
>> On 2015年10月30日 22:03, Mark Rutland wrote:
>>> On Fri, Oct 30, 2015 at 04:22:49PM +0800, Zain Wang wrote:
>>>> Add DT bindings documentation for the rk3288 crypto drivers.
>>>>
>>>> Signed-off-by: Zain Wang <[email protected]>
>>>> ---
>>>> +Required properties:
>>>> +- compatible: should be "rockchip,crypto"
>>> Choose a more specific name. Rockchip could easily come up with another
>>> crypto accelerator later.
>> ok! done.
>> rk3288_crypto may be better than crypto.
> Yes, but use '-' not '_'.
ok! done!
>
> Rob
>
>
>
Thanks
Zain