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authorKyösti Mälkki <kyosti.malkki@gmail.com>2015-01-28 22:03:46 +0200
committerKyösti Mälkki <kyosti.malkki@gmail.com>2015-01-30 16:58:27 +0100
commit96643455864a961881a3b2c4922ea76c3a5b4d20 (patch)
tree3ddb1a7e156ffe8b343be0c66aa1a719b5d814c2 /src/device
parent20c2c4b277e72c279229c1eea19aeaee94ab2ae1 (diff)
downloadcoreboot-96643455864a961881a3b2c4922ea76c3a5b4d20.tar.xz
devicetree: Search PnP device node from the tree by path
Copied from device_util.c with added ROMSTAGE_CONST. Change-Id: If872631ed96a79b9a0b15e09382d6f81098c8db3 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/8297 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Diffstat (limited to 'src/device')
-rw-r--r--src/device/device_romstage.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/src/device/device_romstage.c b/src/device/device_romstage.c
index 987fdade0e..df0df6a529 100644
--- a/src/device/device_romstage.c
+++ b/src/device/device_romstage.c
@@ -101,3 +101,24 @@ ROMSTAGE_CONST struct device *dev_find_slot_on_smbus(unsigned int bus,
}
return result;
}
+
+/**
+ * Given a PnP port and a device number, find the device structure.
+ *
+ * @param port The I/O port.
+ * @param device Logical device number.
+ * @return Pointer to the device structure (if found), 0 otherwise.
+ */
+ROMSTAGE_CONST struct device *dev_find_slot_pnp(u16 port, u16 device)
+{
+ ROMSTAGE_CONST struct device *dev;
+
+ for (dev = all_devices; dev; dev = dev->next) {
+ if ((dev->path.type == DEVICE_PATH_PNP) &&
+ (dev->path.pnp.port == port) &&
+ (dev->path.pnp.device == device)) {
+ return dev;
+ }
+ }
+ return 0;
+}