Re: [PATCH v1] arm64: defconfig: Enable i.MX95 configs for booting and Ethernet

Krzysztof Kozlowski
2025-10-23T15:32:23Z

On 23/10/2025 17:27, Marek Vasut wrote:
> On 10/23/25 5:22 PM, Krzysztof Kozlowski wrote:
>> On 23/10/2025 16:03, Alexander Stein wrote:
>>> Hi,
>>>
>>> Am Donnerstag, 23. Oktober 2025, 14:19:15 CEST schrieb João Paulo Gonçalves:
>>>> From: João Paulo Gonçalves <joao.goncalves@toradex.com>
>>>>
>>>> Enable the necessary missing configs for the i.MX95 to boot and also
>>>> have Ethernet working:
>>>>
>>>> * CONFIG_NXP_ENETC4 for the network controller driver
>>>> * CONFIG_NXP_NETC_BLK_CTRL for the NETC hardware domain controller
>>>> * CONFIG_PINCTRL_IMX_SCMI for the pinctrl driver
>>>> * CONFIG_CLK_IMX95_BLK_CTL for the shared hardware domain controller
>>>>
>>>> Signed-off-by: João Paulo Gonçalves <joao.goncalves@toradex.com>
>>>> ---
>>>> arch/arm64/configs/defconfig | 4 ++++
>>>> 1 file changed, 4 insertions(+)
>>>>
>>>> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
>>>> index e3a2d37bd10423b028f59dc40d6e8ee1c610d6b8..787d3ae3f5afeac486a905e0943e7b0e1dcee3a9 100644
>>>> --- a/arch/arm64/configs/defconfig
>>>> +++ b/arch/arm64/configs/defconfig
>>>> @@ -354,8 +354,10 @@ CONFIG_FSL_FMAN=y
>>>> CONFIG_FSL_DPAA_ETH=y
>>>> CONFIG_FSL_DPAA2_ETH=y
>>>> CONFIG_FSL_ENETC=y
>>>> +CONFIG_NXP_ENETC4=m
>>>> CONFIG_FSL_ENETC_VF=y
>>>> CONFIG_FSL_ENETC_QOS=y
>>>> +CONFIG_NXP_NETC_BLK_CTRL=m
>>>
>>> Are you sure this should be module? Shouldn't NFS boot be supported by
>>> default? I might be wring here though.
>>
>>
>> NFS root is supported already with this being module. Yes, it must be a
>> module, cannot be built in.
> It seems I am using it as built-in on MX95 Verdin (patch is posted on
> the ML), and yes, I do boot from NFS root without any initrd/initramfs.
> It has to be built-in for that use case to work.

Every arm64 platform is supposed to use initramfs and we already use all
over the place. Actually, even on arm32, so that use case is not
something defconfig is supposed to support. Your own product config of
course can.

Best regards,
Krzysztof