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@linaro.org --- configs/qcom_defconfig | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/configs/qcom_defconfig b/configs/qcom_defconfig index 659775852c07..3935fe2ef59f 100644 --- a/configs/qcom_defconfig +++ b/configs/qcom_defconfig @@ -32,7 +32,9 @@ CONFIG_CMD_FAT=y CONFIG_CMD_FS_GENERIC=y CONFIG_CMD_LOG=y CONFIG_EFI_PARTITION=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