From 3863f840fa03f6b93672a5afff74f15d460cb911 Mon Sep 17 00:00:00 2001 From: "Cooper Jr., Franklin" Date: Fri, 16 Jun 2017 17:25:05 -0500 Subject: spl: fit: Break out some functions into a common file Some of the functions within spl_fit will be used for non spl purposes. Instead of duplicating functions simply break the functions to be reused into its own file. Signed-off-by: Franklin S Cooper Jr Reviewed-by: Tom Rini Reviewed-by: Simon Glass [trini: Only add the new define to image.h, otherwise we see breakage due to massive include leakage into host tools in some cases] Signed-off-by: Tom Rini --- common/common_fit.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 common/common_fit.c (limited to 'common/common_fit.c') diff --git a/common/common_fit.c b/common/common_fit.c new file mode 100644 index 00000000000..5f5f3f9a447 --- /dev/null +++ b/common/common_fit.c @@ -0,0 +1,62 @@ +/* + * Copyright (C) 2016 Google, Inc + * Written by Simon Glass + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include +#include + +ulong fdt_getprop_u32(const void *fdt, int node, const char *prop) +{ + const u32 *cell; + int len; + + cell = fdt_getprop(fdt, node, prop, &len); + if (!cell || len != sizeof(*cell)) + return FDT_ERROR; + + return fdt32_to_cpu(*cell); +} + +/* + * Iterate over all /configurations subnodes and call a platform specific + * function to find the matching configuration. + * Returns the node offset or a negative error number. + */ +int fit_find_config_node(const void *fdt) +{ + const char *name; + int conf, node, len; + + conf = fdt_path_offset(fdt, FIT_CONFS_PATH); + if (conf < 0) { + debug("%s: Cannot find /configurations node: %d\n", __func__, + conf); + return -EINVAL; + } + for (node = fdt_first_subnode(fdt, conf); + node >= 0; + node = fdt_next_subnode(fdt, node)) { + name = fdt_getprop(fdt, node, "description", &len); + if (!name) { +#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT + printf("%s: Missing FDT description in DTB\n", + __func__); +#endif + return -EINVAL; + } + if (board_fit_config_name_match(name)) + continue; + + debug("Selecting config '%s'", name); + + return node; + } + + return -ENOENT; +} -- cgit v1.2.3