diff options
Diffstat (limited to 'src/northbridge/intel/gm45/northbridge.c')
| -rw-r--r-- | src/northbridge/intel/gm45/northbridge.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/src/northbridge/intel/gm45/northbridge.c b/src/northbridge/intel/gm45/northbridge.c index ce75aea442..84df62dd32 100644 --- a/src/northbridge/intel/gm45/northbridge.c +++ b/src/northbridge/intel/gm45/northbridge.c @@ -243,6 +243,17 @@ static void enable_dev(device_t dev) } } +static u8 scan_bus_unused(struct bus *link) +{ + struct device *dev; + + for (dev = link->children; dev; dev = dev->sibling) { + if (dev->enabled) + return 0; + } + return 1; +} + static void gm45_init(void *const chip_info) { int dev, fn, bit_base; @@ -268,7 +279,8 @@ static void gm45_init(void *const chip_info) for (; fn >= 0; --fn) { const struct device *const d = dev_find_slot(0, PCI_DEVFN(dev, fn)); - if (!d || d->enabled) continue; + if (d && d->enabled && d->link_list && !scan_bus_unused(d->link_list)) + continue; const u32 deven = pci_read_config32(d0f0, D0F0_DEVEN); pci_write_config32(d0f0, D0F0_DEVEN, deven & ~(1 << (bit_base + fn))); |