From 0596d35d80f5090440bd9a2a2beaacb268ff59c0 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Wed, 30 Jul 2014 03:59:03 -0600 Subject: fdt: Sync up with libfdt This brings in changes up to commit f9e91a48 in the libfdt repo. Mostly this is whitespace/minor changes. But there are a few new features: - fdt_size_cells() and fdt_address_cells() - fdt_resize() Signed-off-by: Simon Glass --- lib/libfdt/fdt_addresses.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 lib/libfdt/fdt_addresses.c (limited to 'lib/libfdt/fdt_addresses.c') diff --git a/lib/libfdt/fdt_addresses.c b/lib/libfdt/fdt_addresses.c new file mode 100644 index 00000000000..76054d98e5f --- /dev/null +++ b/lib/libfdt/fdt_addresses.c @@ -0,0 +1,55 @@ +/* + * libfdt - Flat Device Tree manipulation + * Copyright (C) 2014 David Gibson + * SPDX-License-Identifier: GPL-2.0+ BSD-2-Clause + */ +#include "libfdt_env.h" + +#ifndef USE_HOSTCC +#include +#include +#else +#include "fdt_host.h" +#endif + +#include "libfdt_internal.h" + +int fdt_address_cells(const void *fdt, int nodeoffset) +{ + const fdt32_t *ac; + int val; + int len; + + ac = fdt_getprop(fdt, nodeoffset, "#address-cells", &len); + if (!ac) + return 2; + + if (len != sizeof(*ac)) + return -FDT_ERR_BADNCELLS; + + val = fdt32_to_cpu(*ac); + if ((val <= 0) || (val > FDT_MAX_NCELLS)) + return -FDT_ERR_BADNCELLS; + + return val; +} + +int fdt_size_cells(const void *fdt, int nodeoffset) +{ + const fdt32_t *sc; + int val; + int len; + + sc = fdt_getprop(fdt, nodeoffset, "#size-cells", &len); + if (!sc) + return 2; + + if (len != sizeof(*sc)) + return -FDT_ERR_BADNCELLS; + + val = fdt32_to_cpu(*sc); + if ((val < 0) || (val > FDT_MAX_NCELLS)) + return -FDT_ERR_BADNCELLS; + + return val; +} -- cgit v1.2.3