From: Konrad Dybcio <konrad.dybcio@somainline.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
Andy Gross <agross@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arm64: defconfig: build-in Qualcomm SC7180 and SM8450 interconnects
Date: Fri, 21 Oct 2022 11:18:29 +0200 [thread overview]
Message-ID: <c39e27fb-e69f-0d1e-16bb-2acc0b5a5b1e@somainline.org> (raw)
In-Reply-To: <20221021032702.1340963-1-krzysztof.kozlowski@linaro.org>
On 21.10.2022 05:27, Krzysztof Kozlowski wrote:
> On Qualcomm SC7180 and SM8450 SocS, the typical debug console serial
> port is part of GENI Serial Engine QUP Wrapper Controller which uses
> interconnects. This means that without interconnect drivers, the serial
> might not probe. Without serial console, the root might not be mounted
> by initramfs:
>
> + REASON=No init found. Try passing init= bootarg. PS1=(initramfs
> ...
> (initramfs) run-init -c /dev/console -n /root /sbin/init
> run-init: opening console: No such file or directory
>
> This means that interconnect drivers on these Qualcomm SoCs cannot be
> modules and must be built-in to mount rootfs.
>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Konrad
> arch/arm64/configs/defconfig | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
> index 2af94d3c1c11..c1b7fb44e381 100644
> --- a/arch/arm64/configs/defconfig
> +++ b/arch/arm64/configs/defconfig
> @@ -1301,7 +1301,7 @@ CONFIG_INTERCONNECT_QCOM_MSM8916=m
> CONFIG_INTERCONNECT_QCOM_MSM8996=m
> CONFIG_INTERCONNECT_QCOM_OSM_L3=m
> CONFIG_INTERCONNECT_QCOM_QCS404=m
> -CONFIG_INTERCONNECT_QCOM_SC7180=m
> +CONFIG_INTERCONNECT_QCOM_SC7180=y
> CONFIG_INTERCONNECT_QCOM_SC7280=y
> CONFIG_INTERCONNECT_QCOM_SC8180X=y
> CONFIG_INTERCONNECT_QCOM_SC8280XP=y
> @@ -1309,7 +1309,7 @@ CONFIG_INTERCONNECT_QCOM_SDM845=y
> CONFIG_INTERCONNECT_QCOM_SM8150=m
> CONFIG_INTERCONNECT_QCOM_SM8250=m
> CONFIG_INTERCONNECT_QCOM_SM8350=m
> -CONFIG_INTERCONNECT_QCOM_SM8450=m
> +CONFIG_INTERCONNECT_QCOM_SM8450=y
> CONFIG_EXT2_FS=y
> CONFIG_EXT3_FS=y
> CONFIG_EXT4_FS_POSIX_ACL=y
next prev parent reply other threads:[~2022-10-21 9:19 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-21 3:27 [PATCH] arm64: defconfig: build-in Qualcomm SC7180 and SM8450 interconnects Krzysztof Kozlowski
2022-10-21 9:18 ` Konrad Dybcio [this message]
2022-11-07 3:12 ` Bjorn Andersson
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