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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>
This commit is contained in:
Kyösti Mälkki 2019-03-15 17:44:23 +02:00 committed by Felix Held
parent 8bb2bace86
commit 5e2a2cd5e7
1 changed files with 16 additions and 0 deletions
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16
util/sconfig/main.c
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@ -883,6 +883,18 @@ static void pass1(FILE *fil, struct device *ptr, struct device *next)
emit_dev_links(fil, ptr); 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, static void add_siblings_to_queue(struct queue_entry **bfs_q_head,
struct device *d) struct device *d)
{ {
@ -1385,6 +1397,10 @@ int main(int argc, char **argv)
fprintf(autogen, "\n/* pass 1 */\n"); fprintf(autogen, "\n/* pass 1 */\n");
walk_device_tree(autogen, &base_root_dev, pass1); 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); fclose(autogen);
return 0; return 0;