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USB: add new configuration variable CONFIG_PCI_OHCI_DEVNO

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In case of several PCI USB controllers on a board this variable
specifys which controller to use.
See doc/README.generic_usb_ohci for details.

Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com>
This commit is contained in:
Sergei Poselenov 2008-05-27 11:35:02 +02:00 committed by Wolfgang Denk
parent 2f7468aeba
commit 5a904e5637
2 changed files with 10 additions and 1 deletions
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6
doc/README.generic_usb_ohci
View File

@ -51,6 +51,12 @@ You'll need to define
CONFIG_PCI_OHCI
If you have several USB PCI controllers, define
CONFIG_PCI_OHCI_DEVNO: number of the OHCI device in PCI list
If undefined, the first instance found in PCI space will be used.
PCI Controllers need to do byte swapping on register accesses, so they
should to define:

5
drivers/usb/usb_ohci.c
View File

@ -53,6 +53,9 @@
#if defined(CONFIG_PCI_OHCI)
# include <pci.h>
#if !defined(CONFIG_PCI_OHCI_DEVNO)
#define CONFIG_PCI_OHCI_DEVNO 0
#endif
#endif
#include <malloc.h>
@ -1818,7 +1821,7 @@ int usb_lowlevel_init(void)
gohci.sleeping = 0;
gohci.irq = -1;
#ifdef CONFIG_PCI_OHCI
pdev = pci_find_devices(ohci_pci_ids, 0);
pdev = pci_find_devices(ohci_pci_ids, CONFIG_PCI_OHCI_DEVNO);
if (pdev != -1) {
u16 vid, did;