[PATCH v2 0/9] New boards support: db845c and qcs404-evb
Peng Fan
peng.fan at oss.nxp.com
Tue Jul 12 10:28:22 CEST 2022
On 7/12/2022 1:53 PM, Sumit Garg wrote:
> Hi Peng,
>
> On Tue, 12 Jul 2022 at 06:27, Peng Fan <peng.fan at oss.nxp.com> wrote:
>>
>>
>>
>> On 7/8/2022 9:13 PM, Sumit Garg wrote:
>>> Add support for two new boards db845c and qcs404-evb:
>>> - db845c is a 96boards compliant platform aka RB3 based on Qualcomm
>>> SDM845 SoC.
>>> - qcs404-evb is an evaluation board from Qualcomm based on QCS404 SoC.
>>>
>>> Both these platforms have one thing in common that u-boot is chain-loaded
>>> in 64-bit mode via Android Boot Loader (ABL) which is an EFI application.
>>> For further details on chain-loading refer to platform specific
>>
>> Just curious about the flow:
>> ABL(an EFI applicaiton)->load U-Boot->start U-Boot? or you mean U-Boot
>> run as EFI application?
>>
>
> Here you can think of u-boot as just a replacement of the kernel image
> within the boot.img. U-boot already has a provision for
> LINUX_KERNEL_IMAGE_HEADER [1] which makes it look like a kernel image.
> Boot chain:
>
> XBL (edk2 proprietary source code) -> ABL(an EFI applicaiton) ->
> U-boot (part of boot.img as a replacement of kernel) -> FIT image
> (part of boot.img as a replacement of ramdisk)
Oh. This is complicated boot flow. Just guess this is easy to
support Windows ARM and Android both.
>
> Also, the final stage is configurable as u-boot allows interactions
> with various media (eMMC, USB (WIP), network (WIP) etc.)
U-Boot through XBL to access the various media or directly access.
I guess it is as U-Boot runs as EFI application, through XBL to access
the various media.
Thanks,
Peng.
>
> [1] https://source.denx.de/u-boot/u-boot/-/blob/master/arch/arm/Kconfig#L82
>
> -Sumit
>
>> THanks,
>> Peng.
>>
>>> documentation:
>>> - doc/board/qualcomm/sdm845.rst
>>> - doc/board/qualcomm/qcs404.rst
>>>
>>> Changes in v2:
>>> - Added patch #1 to fix DT node overrides in starqltechn-uboot.dtsi.
>>> - Updated patch #2 commit description.
>>> - Fixed a typo (s/96Board/96Boards/) in patch #5.
>>>
>>> Sumit Garg (9):
>>> board: starqltechn: Align DT node overrides with sdm845.dtsi
>>> arm64: dts: sdm845: Remove redundant u-boot DT properties
>>> clocks: sdm845: Import qcom,gcc-sdm845.h
>>> uart: sdm845: Fix debug UART pinmux
>>> board: qualcomm: Add support for dragonboard845c
>>> mmc: msm_sdhci: Add SDCC version 5.0.0 support
>>> pinctrl: qcom: Add pinctrl driver for QCS404 SoC
>>> clocks: qcom: Add clock driver for QCS404 SoC
>>> board: qualcomm: Add support for QCS404 EVB
>>>
>>> arch/arm/dts/Makefile | 1 +
>>> arch/arm/dts/dragonboard845c-uboot.dtsi | 37 +++
>>> arch/arm/dts/dragonboard845c.dts | 44 ++++
>>> arch/arm/dts/qcs404-evb-uboot.dtsi | 24 ++
>>> arch/arm/dts/qcs404-evb.dts | 81 ++++++
>>> arch/arm/dts/sdm845.dtsi | 8 +-
>>> arch/arm/dts/starqltechn-uboot.dtsi | 18 +-
>>> arch/arm/dts/starqltechn.dts | 2 +-
>>> arch/arm/mach-snapdragon/Kconfig | 25 ++
>>> arch/arm/mach-snapdragon/Makefile | 3 +
>>> arch/arm/mach-snapdragon/clock-qcs404.c | 30 +++
>>> arch/arm/mach-snapdragon/clock-sdm845.c | 3 +-
>>> arch/arm/mach-snapdragon/clock-snapdragon.c | 1 +
>>> .../include/mach/sysmap-qcs404.h | 13 +
>>> arch/arm/mach-snapdragon/pinctrl-qcs404.c | 55 ++++
>>> arch/arm/mach-snapdragon/pinctrl-snapdragon.c | 1 +
>>> arch/arm/mach-snapdragon/pinctrl-snapdragon.h | 1 +
>>> arch/arm/mach-snapdragon/sysmap-qcs404.c | 31 +++
>>> board/qualcomm/dragonboard845c/Kconfig | 12 +
>>> board/qualcomm/dragonboard845c/MAINTAINERS | 6 +
>>> board/qualcomm/dragonboard845c/Makefile | 9 +
>>> board/qualcomm/dragonboard845c/db845c.its | 63 +++++
>>> .../dragonboard845c/dragonboard845c.c | 9 +
>>> board/qualcomm/qcs404-evb/Kconfig | 15 ++
>>> board/qualcomm/qcs404-evb/MAINTAINERS | 6 +
>>> board/qualcomm/qcs404-evb/Makefile | 6 +
>>> board/qualcomm/qcs404-evb/qcs404-evb.c | 33 +++
>>> board/qualcomm/qcs404-evb/qcs404-evb.its | 64 +++++
>>> configs/dragonboard845c_defconfig | 28 ++
>>> configs/qcs404evb_defconfig | 39 +++
>>> doc/board/qualcomm/index.rst | 1 +
>>> doc/board/qualcomm/qcs404.rst | 79 ++++++
>>> doc/board/qualcomm/sdm845.rst | 100 ++++++-
>>> drivers/mmc/msm_sdhci.c | 96 ++++---
>>> include/configs/dragonboard845c.h | 28 ++
>>> include/configs/qcs404-evb.h | 27 ++
>>> include/dt-bindings/clock/qcom,gcc-qcs404.h | 180 +++++++++++++
>>> include/dt-bindings/clock/qcom,gcc-sdm845.h | 246 ++++++++++++++++++
>>> 38 files changed, 1363 insertions(+), 62 deletions(-)
>>> create mode 100644 arch/arm/dts/dragonboard845c-uboot.dtsi
>>> create mode 100644 arch/arm/dts/dragonboard845c.dts
>>> create mode 100644 arch/arm/dts/qcs404-evb-uboot.dtsi
>>> create mode 100644 arch/arm/dts/qcs404-evb.dts
>>> create mode 100644 arch/arm/mach-snapdragon/clock-qcs404.c
>>> create mode 100644 arch/arm/mach-snapdragon/include/mach/sysmap-qcs404.h
>>> create mode 100644 arch/arm/mach-snapdragon/pinctrl-qcs404.c
>>> create mode 100644 arch/arm/mach-snapdragon/sysmap-qcs404.c
>>> create mode 100644 board/qualcomm/dragonboard845c/Kconfig
>>> create mode 100644 board/qualcomm/dragonboard845c/MAINTAINERS
>>> create mode 100644 board/qualcomm/dragonboard845c/Makefile
>>> create mode 100644 board/qualcomm/dragonboard845c/db845c.its
>>> create mode 100644 board/qualcomm/dragonboard845c/dragonboard845c.c
>>> create mode 100644 board/qualcomm/qcs404-evb/Kconfig
>>> create mode 100644 board/qualcomm/qcs404-evb/MAINTAINERS
>>> create mode 100644 board/qualcomm/qcs404-evb/Makefile
>>> create mode 100644 board/qualcomm/qcs404-evb/qcs404-evb.c
>>> create mode 100644 board/qualcomm/qcs404-evb/qcs404-evb.its
>>> create mode 100644 configs/dragonboard845c_defconfig
>>> create mode 100644 configs/qcs404evb_defconfig
>>> create mode 100644 doc/board/qualcomm/qcs404.rst
>>> create mode 100644 include/configs/dragonboard845c.h
>>> create mode 100644 include/configs/qcs404-evb.h
>>> create mode 100644 include/dt-bindings/clock/qcom,gcc-qcs404.h
>>> create mode 100644 include/dt-bindings/clock/qcom,gcc-sdm845.h
>>>
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