diff options
Diffstat (limited to 'include/sbi_utils')
| -rw-r--r-- | include/sbi_utils/fdt/fdt_fixup.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/sbi_utils/fdt/fdt_fixup.h b/include/sbi_utils/fdt/fdt_fixup.h index 54568c2..0697a18 100644 --- a/include/sbi_utils/fdt/fdt_fixup.h +++ b/include/sbi_utils/fdt/fdt_fixup.h @@ -48,6 +48,20 @@ void fdt_plic_fixup(void *fdt, const char *compat); int fdt_reserved_memory_fixup(void *fdt); /** + * Fix up the reserved memory subnodes in the device tree + * + * This routine adds the no-map property to the reserved memory subnodes so + * that the OS does not map those PMP protected memory regions. + * + * Platform codes must call this helper in their final_init() after fdt_fixups() + * if the OS should not map the PMP protected reserved regions. + * + * @param fdt: device tree blob + * @return zero on success and -ve on failure + */ +int fdt_reserved_memory_nomap_fixup(void *fdt); + +/** * General device tree fix-up * * This routine do all required device tree fix-ups for a typical platform. |