CONFIG_ARC_UBOOT_SUPPORT: Support uboot arg Handling

General informations

The Linux kernel configuration item CONFIG_ARC_UBOOT_SUPPORT:

• prompt: Support uboot arg Handling
• type: bool
• depends on: (none)
• defined in arch/arc/Kconfig
• found in Linux kernels: 4.2–4.20

Help text

ARC Linux by default checks for uboot provided args as pointers to external cmdline or DTB. This however breaks in absence of uboot, when booting from Metaware debugger directly, as the registers are not zeroed out on reset by mdb and/or ARCv2 based cores. The bogus registers look like uboot args to kernel which then chokes. So only enable the uboot arg checking/processing if users are sure of uboot being in play.

Hardware

LKDDb

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Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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