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https://github.com/brain-hackers/u-boot-brain
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d442f69399
Several architectures had a default board_fit_config_name_match already; this provides a generic weak version. We default to rejecting all configs. This will use the FIT's default config, instead of the first config. This may result in boot failures if there are multiple configurations and the first config is *not* the default. Signed-off-by: Sean Anderson <sean.anderson@seco.com>
87 lines
1.8 KiB
C
87 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2016 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#include <common.h>
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#include <errno.h>
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#include <image.h>
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#include <log.h>
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#include <linux/libfdt.h>
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ulong fdt_getprop_u32(const void *fdt, int node, const char *prop)
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{
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const u32 *cell;
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int len;
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cell = fdt_getprop(fdt, node, prop, &len);
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if (!cell || len != sizeof(*cell))
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return FDT_ERROR;
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return fdt32_to_cpu(*cell);
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}
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__weak int board_fit_config_name_match(const char *name)
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{
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return -EINVAL;
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}
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/*
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* Iterate over all /configurations subnodes and call a platform specific
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* function to find the matching configuration.
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* Returns the node offset or a negative error number.
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*/
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int fit_find_config_node(const void *fdt)
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{
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const char *name;
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int conf, node, len;
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const char *dflt_conf_name;
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const char *dflt_conf_desc = NULL;
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int dflt_conf_node = -ENOENT;
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conf = fdt_path_offset(fdt, FIT_CONFS_PATH);
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if (conf < 0) {
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debug("%s: Cannot find /configurations node: %d\n", __func__,
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conf);
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return -EINVAL;
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}
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dflt_conf_name = fdt_getprop(fdt, conf, "default", &len);
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for (node = fdt_first_subnode(fdt, conf);
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node >= 0;
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node = fdt_next_subnode(fdt, node)) {
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name = fdt_getprop(fdt, node, "description", &len);
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if (!name) {
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#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
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printf("%s: Missing FDT description in DTB\n",
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__func__);
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#endif
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return -EINVAL;
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}
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if (dflt_conf_name) {
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const char *node_name = fdt_get_name(fdt, node, NULL);
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if (strcmp(dflt_conf_name, node_name) == 0) {
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dflt_conf_node = node;
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dflt_conf_desc = name;
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}
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}
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if (board_fit_config_name_match(name))
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continue;
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debug("Selecting config '%s'\n", name);
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return node;
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}
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if (dflt_conf_node != -ENOENT) {
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debug("Selecting default config '%s'\n", dflt_conf_desc);
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return dflt_conf_node;
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}
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return -ENOENT;
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}
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