linkb_to_host
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1895 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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3f5ef301a7
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@ -241,27 +241,32 @@ static int ht_setup_chain(device_t udev, uint8_t upos)
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break;
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}
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/* get ht direction */
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offs = ( (pci_read_config16(dev, pos + PCI_CAP_FLAGS) >> 10) & 1) ? PCI_HT_SLAVE1_OFFS : PCI_HT_SLAVE0_OFFS;
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/* Setup the Hypertransport link */
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reset_needed |= ht_optimize_link(udev, upos, uoffs, dev, pos, offs);
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/* Update the Unitid of the current device */
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flags = pci_read_config16(dev, pos + PCI_CAP_FLAGS);
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flags &= ~0x1f; /* mask out the bse Unit ID */
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flags |= next_unitid & 0x1f;
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pci_write_config16(dev, pos + PCI_CAP_FLAGS, flags);
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/* Remeber the location of the last device */
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udev = PCI_DEV(0, next_unitid, 0);
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upos = pos;
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uoffs = (offs != PCI_HT_SLAVE0_OFFS) ? PCI_HT_SLAVE0_OFFS : PCI_HT_SLAVE1_OFFS;
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dev = PCI_DEV(0, next_unitid, 0);
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/* Compute the number of unitids consumed */
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count = (flags >> 5) & 0x1f;
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next_unitid += count;
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/* get ht direction */
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flags = pci_read_config16(dev, pos + PCI_CAP_FLAGS); // double read ??
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offs = ((flags>>10) & 1) ? PCI_HT_SLAVE1_OFFS : PCI_HT_SLAVE0_OFFS;
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/* Setup the Hypertransport link */
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reset_needed |= ht_optimize_link(udev, upos, uoffs, dev, pos, offs);
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/* Remeber the location of the last device */
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udev = dev;
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upos = pos;
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uoffs = (offs != PCI_HT_SLAVE0_OFFS) ? PCI_HT_SLAVE0_OFFS : PCI_HT_SLAVE1_OFFS;
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} while((last_unitid != next_unitid) && (next_unitid <= 0x1f));
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return reset_needed;
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}
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@ -298,27 +303,31 @@ static int ht_setup_chainx(device_t udev, uint8_t upos, uint8_t bus)
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break;
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}
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/* get ht direction */
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offs = ((pci_read_config16(dev, pos + PCI_CAP_FLAGS)>>10) & 1) ? PCI_HT_SLAVE1_OFFS : PCI_HT_SLAVE0_OFFS;
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/* Setup the Hypertransport link */
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reset_needed |= ht_optimize_link(udev, upos, uoffs, dev, pos, offs);
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/* Update the Unitid of the current device */
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flags = pci_read_config16(dev, pos + PCI_CAP_FLAGS);
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flags &= ~0x1f; /* mask out the bse Unit ID */
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flags |= next_unitid & 0x1f;
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pci_write_config16(dev, pos + PCI_CAP_FLAGS, flags);
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/* Remeber the location of the last device */
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udev = PCI_DEV(bus, next_unitid, 0);
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upos = pos;
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uoffs = ( offs != PCI_HT_SLAVE0_OFFS ) ? PCI_HT_SLAVE0_OFFS : PCI_HT_SLAVE1_OFFS;
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dev = PCI_DEV(bus, next_unitid, 0);
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/* Compute the number of unitids consumed */
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count = (flags >> 5) & 0x1f;
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next_unitid += count;
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/* get ht direction */
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flags = pci_read_config16(dev, pos + PCI_CAP_FLAGS); // double read ??
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offs = ((flags>>10) & 1) ? PCI_HT_SLAVE1_OFFS : PCI_HT_SLAVE0_OFFS;
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/* Setup the Hypertransport link */
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reset_needed |= ht_optimize_link(udev, upos, uoffs, dev, pos, offs);
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/* Remeber the location of the last device */
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udev = dev;
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upos = pos;
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uoffs = ( offs != PCI_HT_SLAVE0_OFFS ) ? PCI_HT_SLAVE0_OFFS : PCI_HT_SLAVE1_OFFS;
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} while((last_unitid != next_unitid) && (next_unitid <= 0x1f));
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return reset_needed;
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}
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