util/sconfig: Expose usable PCI and PNP device names
These devices can be accessed directly by symbolname,
without a search and walk through the tree, as they
have static paths.
Change-Id: I711058f5c809fa9bc7ea4333aaebad6847ebdfd4
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31933
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/util/sconfig/main.c b/util/sconfig/main.c
index 5e3a1d4..6b421ec 100644
--- a/util/sconfig/main.c
+++ b/util/sconfig/main.c
@@ -883,6 +883,18 @@
emit_dev_links(fil, ptr);
}
+static void expose_device_names(FILE *fil, struct device *ptr, struct device *next)
+{
+ /* Only devices on root bus here. */
+ if (ptr->bustype == PCI && ptr->parent->dev->bustype == DOMAIN)
+ fprintf(fil, "DEVTREE_CONST struct device *DEVTREE_CONST __pci_0_%02x_%d = &%s;\n",
+ ptr->path_a, ptr->path_b, ptr->name);
+
+ if (ptr->bustype == PNP)
+ fprintf(fil, "DEVTREE_CONST struct device *DEVTREE_CONST __pnp_%04x_%02x = &%s;\n",
+ ptr->path_a, ptr->path_b, ptr->name);
+}
+
static void add_siblings_to_queue(struct queue_entry **bfs_q_head,
struct device *d)
{
@@ -1385,6 +1397,10 @@
fprintf(autogen, "\n/* pass 1 */\n");
walk_device_tree(autogen, &base_root_dev, pass1);
+ /* Expose static devicenames to global namespace. */
+ fprintf(autogen, "\n/* expose_device_names */\n");
+ walk_device_tree(autogen, &base_root_dev, expose_device_names);
+
fclose(autogen);
return 0;