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Message-ID: <125c849f-3746-864f-8b8f-6e0a33aca439@linaro.org>
Date:   Fri, 23 Jun 2023 12:18:02 +0200
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Subject: Re: [PATCH 2/2] arch: arm64: configs: Enable UBI and UBIFS
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To:     "Lee, Kah Jing" <kah.jing.lee@intel.com>,
        Dinh Nguyen <dinguyen@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>
Cc:     "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
References: <0d1b3c55-4b11-9e63-e388-191d39d88df1@linaro.org>
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From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
In-Reply-To: <PH0PR11MB5673A862187810E9986E3C8BCB23A@PH0PR11MB5673.namprd11.prod.outlook.com>
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On 23/06/2023 12:03, Lee, Kah Jing wrote:
>>>>>
>>>>> Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@intel.com>
>>>>> Signed-off-by: Kah Jing Lee <kah.jing.lee@intel.com>
>>>>> ---
>>>>>  arch/arm64/configs/defconfig | 2 ++
>>>>>  1 file changed, 2 insertions(+)
>>>>>
>>>>> diff --git a/arch/arm64/configs/defconfig
>>>>> b/arch/arm64/configs/defconfig index a24609e14d50..23a6ebcb1a9e
>>>> 100644
>>>>> --- a/arch/arm64/configs/defconfig
>>>>> +++ b/arch/arm64/configs/defconfig
>>>>> @@ -470,6 +470,8 @@ CONFIG_IPMI_DEVICE_INTERFACE=m
>>>> CONFIG_IPMI_SI=m
>>>>> CONFIG_HW_RANDOM=y  CONFIG_HW_RANDOM_VIRTIO=y
>>>>> +CONFIG_MTD_UBI=y
>>>>> +CONFIG_UBIFS_FS=y
>>>>
>>>> Not modules?
>>> Yes, we need to boot with rootfs with UBIFS.
>>
>> So you miss init ramdisk.
> Currently we are using the bootargs to mount the rootfs from QSPI NOR flash:
> [    0.000000] Kernel command line: earlycon panic=-1 ubi.mtd=1 root=ubi0:rootfs rootfstype=ubifs rw rootwait
> Is it possible to mount the ubifs rootfs with the ubifs=m config during boot?

I think yes. rootfs devices are for example modules, so filesystem can
be as well.


Best regards,
Krzysztof