[PATCH v2 13/14] qcom_defconfig: enable livetree

Neil Armstrong neil.armstrong at linaro.org
Fri Mar 15 18:24:41 CET 2024


On 15/03/2024 16:10, Caleb Connolly wrote:
> Qualcomm FDTs are on the larger size, and with the addition of DT
> modifications during board_init() it makes sense to enable OF_LIVE
> globally. The cost of building the tree should be offset by the
> increased efficiency at which we can walk it.
> 
> Some rough measurements with CONFIG_BOOTSTAGE suggests that this might
> add 0.1-0.2ms to the boot-to-console time. However the reset-to-reset
> timer difference is in the range of 0.5ms so this could just be noise.
> 
> Suffice to say, no significant slow down.
> 
> Signed-off-by: Caleb Connolly <caleb.connolly at linaro.org>
> ---
>   configs/qcom_defconfig | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/configs/qcom_defconfig b/configs/qcom_defconfig
> index cbc612b44bd9..eebd0d74bd51 100644
> --- a/configs/qcom_defconfig
> +++ b/configs/qcom_defconfig
> @@ -25,8 +25,11 @@ CONFIG_CMD_UFS=y
>   CONFIG_CMD_USB=y
>   CONFIG_CMD_CAT=y
>   CONFIG_CMD_BMP=y
>   CONFIG_CMD_LOG=y
> +CONFIG_OF_LIVE=y
> +# CONFIG_NET is not set
> +# CONFIG_OFNODE_MULTI_TREE is not set
>   CONFIG_BUTTON_QCOM_PMIC=y
>   CONFIG_CLK=y
>   CONFIG_CLK_QCOM_QCS404=y
>   CONFIG_CLK_QCOM_SDM845=y
> 

Reviewed-by: Neil Armstrong <neil.armstrong at linaro.org>


More information about the U-Boot mailing list