diff mbox series

[v3,3/4] arm64: add Airoha EN7581 platform

Message ID b50faa94923389d435ac37c3094c269a46bddaea.1709768157.git.lorenzo@kernel.org (mailing list archive)
State New, archived
Headers show
Series arm64: Add support for Airoha EN7581 Soc | expand

Commit Message

Lorenzo Bianconi March 7, 2024, 12:11 a.m. UTC
From: Daniel Danzberger <dd@embedd.com>

Introduce the Kconfig entry for the Airoha EN7581 multicore architecture
available in the Airoha EN7581 evaluation board.

Signed-off-by: Daniel Danzberger <dd@embedd.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
 arch/arm64/Kconfig.platforms | 13 +++++++++++++
 1 file changed, 13 insertions(+)

Comments

AngeloGioacchino Del Regno March 7, 2024, 11:37 a.m. UTC | #1
Il 07/03/24 01:11, Lorenzo Bianconi ha scritto:
> From: Daniel Danzberger <dd@embedd.com>
> 
> Introduce the Kconfig entry for the Airoha EN7581 multicore architecture
> available in the Airoha EN7581 evaluation board.
> 
> Signed-off-by: Daniel Danzberger <dd@embedd.com>
> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
> ---
>   arch/arm64/Kconfig.platforms | 13 +++++++++++++
>   1 file changed, 13 insertions(+)
> 
> diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
> index 24335565bad5..bbe61e233034 100644
> --- a/arch/arm64/Kconfig.platforms
> +++ b/arch/arm64/Kconfig.platforms
> @@ -8,6 +8,19 @@ config ARCH_ACTIONS
>   	help
>   	  This enables support for the Actions Semiconductor S900 SoC family.
>   
> +config ARCH_AIROHA
> +	bool "Airoha SoC Support"
> +	select ARM_AMBA

ARM_AMBA is selected by ARM64 already, you don't need that one here.

> +	select ARM_GIC
> +	select ARM_GIC_V3

ARM_GIC and ARM_GIC_v3 are also selected by ARM64

> +	select ARM_PSCI

ARM64 selects ARM_PSCI_FW (which should select ARM_PSCI, please verify)

> +	select HAVE_ARM_ARCH_TIMER
> +	select COMMON_CLK

ARM64 selects COMMON_CLK already.

> +	help
> +	  This enables support for Airoha EN7581 multicore architecture
> +	  available on the following SoCs:
> +	   - Airoha EN7581 Evaluation Board

You're not going to add one ARCH entry for each MTK Airoha platform, are you?

(if you are, that's wrong)

....so the help text must be refactored; you could say something like
"This enables support for the ARM64 based Airoha SoCs"

...also, I'm undecided whether MTK should be mentioned or not, here, as those
SoCs are (...at least the 7581 seems to be) really based on MediaTek router
chips, in many instances, sharing the same IPs.


Cheers,
Angelo
Lorenzo Bianconi March 7, 2024, 12:14 p.m. UTC | #2
> Il 07/03/24 01:11, Lorenzo Bianconi ha scritto:
> > From: Daniel Danzberger <dd@embedd.com>
> > 
> > Introduce the Kconfig entry for the Airoha EN7581 multicore architecture
> > available in the Airoha EN7581 evaluation board.
> > 
> > Signed-off-by: Daniel Danzberger <dd@embedd.com>
> > Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
> > ---
> >   arch/arm64/Kconfig.platforms | 13 +++++++++++++
> >   1 file changed, 13 insertions(+)
> > 
> > diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
> > index 24335565bad5..bbe61e233034 100644
> > --- a/arch/arm64/Kconfig.platforms
> > +++ b/arch/arm64/Kconfig.platforms
> > @@ -8,6 +8,19 @@ config ARCH_ACTIONS
> >   	help
> >   	  This enables support for the Actions Semiconductor S900 SoC family.
> > +config ARCH_AIROHA
> > +	bool "Airoha SoC Support"
> > +	select ARM_AMBA
> 
> ARM_AMBA is selected by ARM64 already, you don't need that one here.

ack, I will fix it in v4.

> 
> > +	select ARM_GIC
> > +	select ARM_GIC_V3
> 
> ARM_GIC and ARM_GIC_v3 are also selected by ARM64

ack, I will fix it in v4.

> 
> > +	select ARM_PSCI
> 
> ARM64 selects ARM_PSCI_FW (which should select ARM_PSCI, please verify)

ARM64 selects ARM_PSCI_FW but ARM_PSCI_FW does not seem to select ARM_PSCI.
Am I missing something?

> 
> > +	select HAVE_ARM_ARCH_TIMER
> > +	select COMMON_CLK
> 
> ARM64 selects COMMON_CLK already.

ack, I will fix it in v4.

> 
> > +	help
> > +	  This enables support for Airoha EN7581 multicore architecture
> > +	  available on the following SoCs:
> > +	   - Airoha EN7581 Evaluation Board
> 
> You're not going to add one ARCH entry for each MTK Airoha platform, are you?
> 
> (if you are, that's wrong)
> 
> ....so the help text must be refactored; you could say something like
> "This enables support for the ARM64 based Airoha SoCs"

ack, I will fix it in v4.

> 
> ...also, I'm undecided whether MTK should be mentioned or not, here, as those
> SoCs are (...at least the 7581 seems to be) really based on MediaTek router
> chips, in many instances, sharing the same IPs.

Right, EN7581 is similar to mtk router but I do not know if this will be always
true (maybe?? :))

Regards,
Lorenzo

> 
> 
> Cheers,
> Angelo
>
AngeloGioacchino Del Regno March 7, 2024, 12:22 p.m. UTC | #3
Il 07/03/24 13:14, Lorenzo Bianconi ha scritto:
>> Il 07/03/24 01:11, Lorenzo Bianconi ha scritto:
>>> From: Daniel Danzberger <dd@embedd.com>
>>>
>>> Introduce the Kconfig entry for the Airoha EN7581 multicore architecture
>>> available in the Airoha EN7581 evaluation board.
>>>
>>> Signed-off-by: Daniel Danzberger <dd@embedd.com>
>>> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
>>> ---
>>>    arch/arm64/Kconfig.platforms | 13 +++++++++++++
>>>    1 file changed, 13 insertions(+)
>>>
>>> diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
>>> index 24335565bad5..bbe61e233034 100644
>>> --- a/arch/arm64/Kconfig.platforms
>>> +++ b/arch/arm64/Kconfig.platforms
>>> @@ -8,6 +8,19 @@ config ARCH_ACTIONS
>>>    	help
>>>    	  This enables support for the Actions Semiconductor S900 SoC family.
>>> +config ARCH_AIROHA
>>> +	bool "Airoha SoC Support"
>>> +	select ARM_AMBA
>>
>> ARM_AMBA is selected by ARM64 already, you don't need that one here.
> 
> ack, I will fix it in v4.
> 
>>
>>> +	select ARM_GIC
>>> +	select ARM_GIC_V3
>>
>> ARM_GIC and ARM_GIC_v3 are also selected by ARM64
> 
> ack, I will fix it in v4.
> 
>>
>>> +	select ARM_PSCI
>>
>> ARM64 selects ARM_PSCI_FW (which should select ARM_PSCI, please verify)
> 
> ARM64 selects ARM_PSCI_FW but ARM_PSCI_FW does not seem to select ARM_PSCI.
> Am I missing something?
> 

I asked you to verify because I didn't (and was making assumptions) - if it's
not getting selected, keep the select here. I have no problem with that.

>>
>>> +	select HAVE_ARM_ARCH_TIMER
>>> +	select COMMON_CLK
>>
>> ARM64 selects COMMON_CLK already.
> 
> ack, I will fix it in v4.
> 
>>
>>> +	help
>>> +	  This enables support for Airoha EN7581 multicore architecture
>>> +	  available on the following SoCs:
>>> +	   - Airoha EN7581 Evaluation Board
>>
>> You're not going to add one ARCH entry for each MTK Airoha platform, are you?
>>
>> (if you are, that's wrong)
>>
>> ....so the help text must be refactored; you could say something like
>> "This enables support for the ARM64 based Airoha SoCs"
> 
> ack, I will fix it in v4.
> 
>>
>> ...also, I'm undecided whether MTK should be mentioned or not, here, as those
>> SoCs are (...at least the 7581 seems to be) really based on MediaTek router
>> chips, in many instances, sharing the same IPs.
> 
> Right, EN7581 is similar to mtk router but I do not know if this will be always
> true (maybe?? :))
> 

I hoped you did know more... but even if logic says that it will be true for most
probably a long time (since Airoha *is* [a subsidiary of] MediaTek), perhaps it's
not a good idea to mention MTK?

I'm not sure either. Of course, mentioning MTK would for the sole purpose of making
sure that whoever tries to port new Airoha SoCs has a pointer (as in: look at MTK
SoCs, you can reuse stuff from there, don't lose time with reinventing the wheel),
but at the same time if Airoha starts being different, that'd do the exact opposite
of my intention...

Uhm.

Any advice from anyone else?

...otherwise just avoid the mention.

Cheers,
Angelo
diff mbox series

Patch

diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index 24335565bad5..bbe61e233034 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -8,6 +8,19 @@  config ARCH_ACTIONS
 	help
 	  This enables support for the Actions Semiconductor S900 SoC family.
 
+config ARCH_AIROHA
+	bool "Airoha SoC Support"
+	select ARM_AMBA
+	select ARM_GIC
+	select ARM_GIC_V3
+	select ARM_PSCI
+	select HAVE_ARM_ARCH_TIMER
+	select COMMON_CLK
+	help
+	  This enables support for Airoha EN7581 multicore architecture
+	  available on the following SoCs:
+	   - Airoha EN7581 Evaluation Board
+
 config ARCH_SUNXI
 	bool "Allwinner sunxi 64-bit SoC Family"
 	select ARCH_HAS_RESET_CONTROLLER