diff options
| author | Markus Armbruster <armbru@redhat.com> | 2013-11-28 17:26:59 +0100 |
|---|---|---|
| committer | Andreas Färber <afaerber@suse.de> | 2013-12-23 00:27:23 +0100 |
| commit | bfa6dfd070f0cb5be37ae3bd6b90bdd67849c311 (patch) | |
| tree | e2444fc55a12e1d9b57e9e04c5ad082509862069 /hw/i2c/smbus_ich9.c | |
| parent | 08c58f92f66dcf0a9097c3a6a65bcc4ffd71268f (diff) | |
ich9: Document why cannot_instantiate_with_device_add_yet
An ICH9 southbridge contains several PCI devices, some of them with
multiple functions. We model each function as a separate qdev. Two
of them need some special wiring set up in pc_q35_init() to work: the
LPC controller at 00:1f.0, and the SMBus controller at 00:1f.3.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Diffstat (limited to 'hw/i2c/smbus_ich9.c')
| -rw-r--r-- | hw/i2c/smbus_ich9.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/hw/i2c/smbus_ich9.c b/hw/i2c/smbus_ich9.c index c1ffa34fd4..8d47eaffc8 100644 --- a/hw/i2c/smbus_ich9.c +++ b/hw/i2c/smbus_ich9.c @@ -97,11 +97,15 @@ static void ich9_smb_class_init(ObjectClass *klass, void *data) k->device_id = PCI_DEVICE_ID_INTEL_ICH9_6; k->revision = ICH9_A2_SMB_REVISION; k->class_id = PCI_CLASS_SERIAL_SMBUS; - dc->cannot_instantiate_with_device_add_yet = true; /* FIXME explain why */ dc->vmsd = &vmstate_ich9_smbus; dc->desc = "ICH9 SMBUS Bridge"; k->init = ich9_smbus_initfn; k->config_write = ich9_smbus_write_config; + /* + * Reason: part of ICH9 southbridge, needs to be wired up by + * pc_q35_init() + */ + dc->cannot_instantiate_with_device_add_yet = true; } i2c_bus *ich9_smb_init(PCIBus *bus, int devfn, uint32_t smb_io_base) |