linux-kernel - Re: [PATCH v2 5/5] arm64: dts: qcom: Add device tree for Sony Xperia 1 IV

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Message-ID: <ef67622c-859e-701f-c6c4-756954b31784@linaro.org>
Date:   Thu, 14 Jul 2022 14:38:10 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Konrad Dybcio <konrad.dybcio@...ainline.org>,
        ~postmarketos/upstreaming@...ts.sr.ht
Cc:     martin.botka@...ainline.org,
        angelogioacchino.delregno@...ainline.org,
        marijn.suijten@...ainline.org, jamipkettunen@...ainline.org,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Kees Cook <keescook@...omium.org>,
        Anton Vorontsov <anton@...msg.org>,
        Colin Cross <ccross@...roid.com>,
        Tony Luck <tony.luck@...el.com>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 5/5] arm64: dts: qcom: Add device tree for Sony Xperia
 1 IV

On 14/07/2022 14:34, Konrad Dybcio wrote:
> Add support for Sony Xperia 1 IV, a.k.a PDX223. This device is a part
> of the SoMC SM8450 Nagara platform and currently it is the only
> device based on that board, so no -common DTSI is created until (if?)
> other Nagara devices appear.
> 
> This commit brings support for:
> * SD Card
> * USB (*including SuperSpeed*)
> * ADSP/CDSP/SLPI (modem remains untested for now)
> * Most regulators (some GPIO-enabled ones require PMIC GPIOs but
> trying to access any SPMI device crashes the device..)
> * Part of I2C-connected peripherals (notably no touch due to a
> driver bug)
> * PCIe0 (PCIe1 is unused)
> 
> Do note display via simplefb is not supported, as the display is blanked
> upon exiting XBL.
> 
> To create a working boot image, you need to run:
> cat arch/arm64/boot/Image.gz arch/arm64/boot/dts/qcom/sm8450-sony-xperia-\
> nagara-pdx223.dtb > .Image.gz-dtb
> 
> mkbootimg \
> --kernel .Image.gz-dtb \
> --ramdisk some_initrd.img \
> --pagesize 4096 \
> --base 0x0 \
> --kernel_offset 0x8000 \
> --ramdisk_offset 0x1000000 \
> --tags_offset 0x100 \
> --cmdline "SOME_CMDLINE" \
> --dtb_offset 0x1f00000 \
> --header_version 1 \
> --os_version 12 \
> --os_patch_level 2022-06 \ # or newer
> -o boot.img-sony-xperia-pdx223
> 
> Then, you need to flash it on the device and get rid of all the
> vendor_boot/dtbo mess:
> 
> // You have to either pull vbmeta{"","_system"} from
> // /dev/block/bootdevice/by-name/ or build one as a part of AOSP build process
> fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
> fastboot --disable-verity --disable-verification flash vbmeta_system \
> vbmeta_system.img
> 
> fastboot flash boot boot.img-sony-xperia-pdx223
> fastboot erase vendor_boot
> fastboot erase recovery
> fastboot flash dtbo emptydtbo.img
> fastboot reboot
> 
> Where emptydtbo.img is a tiny file that consists of 2 bytes (all zeroes), doing
> a "fastboot erase" won't cut it, the bootloader will go crazy and things will
> fall apart when it tries to overlay random bytes from an empty partition onto a
> perfectly good appended DTB.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@...ainline.org>
> ---
> Changes since v1:
> - remove a stray blank line
> - use generic node names for CS35L41
> - fix up indentation for sdhci-caps-mask
> 
>  arch/arm64/boot/dts/qcom/Makefile             |   1 +
>  .../qcom/sm8450-sony-xperia-nagara-pdx223.dts | 634 ++++++++++++++++++
>  2 files changed, 635 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/qcom/sm8450-sony-xperia-nagara-pdx223.dts
> 


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>


Best regards,
Krzysztof