diff options
Diffstat (limited to 'drivers/ieee1394')
| -rw-r--r-- | drivers/ieee1394/ohci1394.c | 11 | ||||
| -rw-r--r-- | drivers/ieee1394/ohci1394.h | 10 |
2 files changed, 20 insertions, 1 deletions
diff --git a/drivers/ieee1394/ohci1394.c b/drivers/ieee1394/ohci1394.c index 643094c3339c..63b71fa997fc 100644 --- a/drivers/ieee1394/ohci1394.c +++ b/drivers/ieee1394/ohci1394.c @@ -553,7 +553,8 @@ static void ohci_initialize(struct ti_ohci *ohci) * register content. * To actually enable physical responses is the job of our interrupt * handler which programs the physical request filter. */ - reg_write(ohci, OHCI1394_PhyUpperBound, 0x01000000); + reg_write(ohci, OHCI1394_PhyUpperBound, + OHCI1394_PHYS_UPPER_BOUND_PROGRAMMED >> 16); DBGMSG("physUpperBoundOffset=%08x", reg_read(ohci, OHCI1394_PhyUpperBound)); @@ -3414,6 +3415,14 @@ static int __devinit ohci1394_pci_probe(struct pci_dev *dev, host->csr.max_rec = (reg_read(ohci, OHCI1394_BusOptions) >> 12) & 0xf; host->csr.lnk_spd = reg_read(ohci, OHCI1394_BusOptions) & 0x7; + if (phys_dma) { + host->low_addr_space = + (u64) reg_read(ohci, OHCI1394_PhyUpperBound) << 16; + if (!host->low_addr_space) + host->low_addr_space = OHCI1394_PHYS_UPPER_BOUND_FIXED; + } + host->middle_addr_space = OHCI1394_MIDDLE_ADDRESS_SPACE; + /* Tell the highlevel this host is ready */ if (hpsb_add_host(host)) FAIL(-ENOMEM, "Failed to register host with highlevel"); diff --git a/drivers/ieee1394/ohci1394.h b/drivers/ieee1394/ohci1394.h index 7df0962144e3..fa05f113f7f0 100644 --- a/drivers/ieee1394/ohci1394.h +++ b/drivers/ieee1394/ohci1394.h @@ -443,6 +443,16 @@ static inline u32 reg_read(const struct ti_ohci *ohci, int offset) #define OHCI1394_TCODE_PHY 0xE +/* Node offset map (phys DMA area, posted write area). + * The value of OHCI1394_PHYS_UPPER_BOUND_PROGRAMMED may be modified but must + * be lower than OHCI1394_MIDDLE_ADDRESS_SPACE. + * OHCI1394_PHYS_UPPER_BOUND_FIXED and OHCI1394_MIDDLE_ADDRESS_SPACE are + * constants given by the OHCI spec. + */ +#define OHCI1394_PHYS_UPPER_BOUND_FIXED 0x000100000000ULL /* 4 GB */ +#define OHCI1394_PHYS_UPPER_BOUND_PROGRAMMED 0x010000000000ULL /* 1 TB */ +#define OHCI1394_MIDDLE_ADDRESS_SPACE 0xffff00000000ULL + void ohci1394_init_iso_tasklet(struct ohci1394_iso_tasklet *tasklet, int type, void (*func)(unsigned long), |