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| author | Clemens Ladisch <clemens@ladisch.de> | 2010-03-17 11:07:55 +0100 |
|---|---|---|
| committer | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2010-03-17 23:24:42 +0100 |
| commit | 8301b91ba0b2d15c86fdf5357efe7c04eb767a6e (patch) | |
| tree | 618f6ef4d1b4a35bba74af004a0aabdde4f315e2 /drivers | |
| parent | cf36df6bfb49fd265a39f676bfc9718029fef160 (diff) | |
| download | linux-3.10-8301b91ba0b2d15c86fdf5357efe7c04eb767a6e.tar.gz linux-3.10-8301b91ba0b2d15c86fdf5357efe7c04eb767a6e.tar.bz2 linux-3.10-8301b91ba0b2d15c86fdf5357efe7c04eb767a6e.zip | |
firewire: ohci: add cycle timer quirk for the TI TSB12LV22
Among the many entries in the TSB12LV22 errata list (TI literature
number SLLS312) is the following:
PCI Slave reads of the Cycle Timer register may occasionally get an
incorrect value.
Software may be able to validate value by reading the register
multiple times rapidly and evaluating for a reasonable difference.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de> (untested)
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (added #define)
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/firewire/ohci.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c index 75dc6988cff..e33917bf97d 100644 --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -231,6 +231,8 @@ static inline struct fw_ohci *fw_ohci(struct fw_card *card) static char ohci_driver_name[] = KBUILD_MODNAME; +#define PCI_DEVICE_ID_TI_TSB12LV22 0x8009 + #define QUIRK_CYCLE_TIMER 1 #define QUIRK_RESET_PACKET 2 #define QUIRK_BE_HEADERS 4 @@ -239,6 +241,8 @@ static char ohci_driver_name[] = KBUILD_MODNAME; static const struct { unsigned short vendor, device, flags; } ohci_quirks[] = { + {PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TSB12LV22, QUIRK_CYCLE_TIMER | + QUIRK_RESET_PACKET}, {PCI_VENDOR_ID_TI, PCI_ANY_ID, QUIRK_RESET_PACKET}, {PCI_VENDOR_ID_AL, PCI_ANY_ID, QUIRK_CYCLE_TIMER}, {PCI_VENDOR_ID_NEC, PCI_ANY_ID, QUIRK_CYCLE_TIMER}, |