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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2015-01-28 22:03:46 +0200 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2015-01-30 16:58:27 +0100 |
| commit | 96643455864a961881a3b2c4922ea76c3a5b4d20 (patch) | |
| tree | 3ddb1a7e156ffe8b343be0c66aa1a719b5d814c2 /src | |
| parent | 20c2c4b277e72c279229c1eea19aeaee94ab2ae1 (diff) | |
| download | coreboot-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')
| -rw-r--r-- | src/device/device_romstage.c | 21 | ||||
| -rw-r--r-- | src/include/device/device.h | 1 |
2 files changed, 22 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; +} diff --git a/src/include/device/device.h b/src/include/device/device.h index c67205cae7..30226bf7df 100644 --- a/src/include/device/device.h +++ b/src/include/device/device.h @@ -261,6 +261,7 @@ ROMSTAGE_CONST struct device *dev_find_next_pci_device( ROMSTAGE_CONST struct device *previous_dev); ROMSTAGE_CONST struct device * dev_find_slot_on_smbus (unsigned int bus, unsigned int addr); +ROMSTAGE_CONST struct device * dev_find_slot_pnp(u16 port, u16 device); #endif |