From 3f9f08cf91c8a6949a5d78a18bd3d8df7b86d888 Mon Sep 17 00:00:00 2001 From: Gerald Van Baren Date: Sat, 14 Apr 2007 22:46:41 -0400 Subject: Add some utilities to manipulate the reserved memory map. --- libfdt/fdt_wip.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'libfdt/fdt_wip.c') diff --git a/libfdt/fdt_wip.c b/libfdt/fdt_wip.c index 261b9b0dc9..cf811830a7 100644 --- a/libfdt/fdt_wip.c +++ b/libfdt/fdt_wip.c @@ -110,3 +110,29 @@ int fdt_nop_node(void *fdt, int nodeoffset) nop_region(fdt_offset_ptr(fdt, nodeoffset, 0), endoffset - nodeoffset); return 0; } + +/* + * Replace a reserve map entry in the nth slot. + */ +int fdt_replace_reservemap_entry(void *fdt, int n, uint64_t addr, uint64_t size) +{ + struct fdt_reserve_entry *re; + int used; + int total; + int err; + + err = fdt_num_reservemap(fdt, &used, &total); + if (err != 0) + return err; + + if (n >= total) + return -FDT_ERR_NOSPACE; + re = (struct fdt_reserve_entry *) + (fdt + fdt_off_mem_rsvmap(fdt) + + (n * sizeof(struct fdt_reserve_entry))); + re->address = cpu_to_fdt64(addr); + re->size = cpu_to_fdt64(size); + + return 0; +} + -- cgit v1.2.3