[PATCH v8 07/12] mach-snapdragon: Kconfig: changes / additions to support SPL

[Casey Connolly]

Hi Michael,

On 16/05/2026 20:19, michael.srba at seznam.cz wrote:
> From: Michael Srba <Michael.Srba at seznam.cz>
> 
> Select SUPPORT_SPL so SPL build can be enabled, disable SYSRESET_PSCI in SPL.
> (SPL runs in EL3, so if SPL itself doesn't provide PSCI, nothing else will.)
> 
> Also select (SPL_)OF_LIVE and DM_EVENT/SPL_EVENT, which are needed to fix up
> upstream dt to make usb work.
> 
> Mirror u-boot proper selections like GPIO and pinctrl to ensure consistent
> behavior, and select SPL_SPRINTF, SPL_LIBCOMMON_SUPPORT etc for similar
> reasons.
> 
> Signed-off-by: Michael Srba <Michael.Srba at seznam.cz>
> Reviewed-by: Simon Glass <sjg at chromium.org>
> ---
>  arch/arm/Kconfig                 | 33 ++++++++++++++++++++++++++++++++-
>  arch/arm/mach-snapdragon/Kconfig | 10 ++++++++++
>  2 files changed, 42 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 850768282ce..255d2035cdc 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -1136,6 +1136,7 @@ config ARCH_SNAPDRAGON
>  	bool "Qualcomm Snapdragon SoCs"
>  	select ARM64
>  	select DM
> +	select DM_EVENT if USB_DWC3_GENERIC

Is there any reason not to make this uncoditional?

>  	select DM_GPIO
>  	select DM_SERIAL
>  	select DM_RESET
> @@ -1149,9 +1150,39 @@ config ARCH_SNAPDRAGON
>  	select SAVE_PREV_BL_FDT_ADDR if !ENABLE_ARM_SOC_BOOT0_HOOK
>  	select LINUX_KERNEL_IMAGE_HEADER if !ENABLE_ARM_SOC_BOOT0_HOOK
>  	select SYSRESET
> -	select SYSRESET_PSCI
> +	select SYSRESET_PSCI if !SPL
>  	select ANDROID_BOOT_IMAGE_IGNORE_BLOB_ADDR
>  	select MMU_PGPROT
> +	select SUPPORT_SPL
> +
> +	select OF_LIVE if USB_DWC3_GENERIC

Same here, OF_LIVE carries performance benefits too besides the fixup stuff.

> +	select SPL_OF_LIVE if SPL_USB_DWC3_GENERIC
> +	select ARMV8_SPL_EXCEPTION_VECTORS if SPL
> +	select ENABLE_ARM_SOC_BOOT0_HOOK if SPL
> +	select SPL_DM if SPL
> +	select SPL_DM_GPIO if SPL
> +	select SPL_DM_PMIC if SPL
> +	select SPL_DM_USB_GADGET if SPL
> +	select SPL_ENV_SUPPORT if SPL
> +	select SPL_EVENT if SPL_USB_DWC3_GENERIC
> +	select SPL_GPIO if SPL
> +	select SPL_HAS_BSS_LINKER_SECTION if SPL
> +	select SPL_LIBCOMMON_SUPPORT if SPL
> +	select SPL_LIBDISK_SUPPORT if SPL
> +	select SPL_LIBGENERIC_SUPPORT if SPL
> +	select SPL_OF_CONTROL if SPL
> +	select SPL_PINCONF if SPL
> +	select SPL_PINCTRL if SPL
> +	select SPL_PINCTRL_FULL if SPL
> +	select SPL_PINCTRL_GENERIC if SPL
> +	select SPL_PINCONF_RECURSIVE if SPL
> +	select SPL_PINMUX if SPL
> +	select SPL_SPMI if SPL
> +	select SPL_SPMI_MSM if SPL
> +	select SPL_SPRINTF if SPL
> +	select SPL_STRTO if SPL
> +	select SPL_USB_GADGET if SPL
> +	imply SPL_MMC if SPL
>  	imply OF_UPSTREAM
>  	imply CMD_DM
>  	imply DM_USB_GADGET
> diff --git a/arch/arm/mach-snapdragon/Kconfig b/arch/arm/mach-snapdragon/Kconfig
> index c195d478512..a2228e217af 100644
> --- a/arch/arm/mach-snapdragon/Kconfig
> +++ b/arch/arm/mach-snapdragon/Kconfig
> @@ -14,6 +14,9 @@ config SYS_VENDOR
>  config SYS_MALLOC_F_LEN
>  	default 0x2000
>  
> +config SPL_SYS_MALLOC_F
> +	default y
> +
>  config SPL_SYS_MALLOC_F_LEN
>  	default 0x2000
>  
> @@ -39,6 +42,13 @@ config SYS_CONFIG_NAME
>  	  Based on this option include/configs/<CONFIG_SYS_CONFIG_NAME>.h header
>  	  will be used for board configuration.
>  
> +config SPL_SHARES_INIT_SP_ADDR
> +	# override the default from common/spl/Kconfig
> +	default n
> +
> +config SPL_HAVE_INIT_STACK
> +	default y
> +
>  choice
>  	prompt "Qualcomm boot0.h workaround"
>  	optional
> 

-- 
// Casey (she/her)