diff options
Diffstat (limited to 'sys/dev/pci/pci.c')
| -rw-r--r-- | sys/dev/pci/pci.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/sys/dev/pci/pci.c b/sys/dev/pci/pci.c index 64f86b8..49b4611 100644 --- a/sys/dev/pci/pci.c +++ b/sys/dev/pci/pci.c @@ -948,7 +948,7 @@ pci_add_map(device_t pcib, int b, int s, int f, int reg, u_int8_t ln2size; u_int8_t ln2range; u_int32_t testval; - + u_int16_t cmd; int type; map = PCIB_READ_CONFIG(pcib, b, s, f, reg, 4); @@ -983,11 +983,18 @@ pci_add_map(device_t pcib, int b, int s, int f, int reg, else printf(", enabled\n"); } - - if (type == SYS_RES_IOPORT && !pci_porten(pcib, b, s, f)) - return 1; - if (type == SYS_RES_MEMORY && !pci_memen(pcib, b, s, f)) - return 1; + + /* Turn on resources that have been left off by a lazy BIOS */ + if (type == SYS_RES_IOPORT && !pci_porten(pcib, b, s, f)) { + cmd = PCIB_READ_CONFIG(pcib, b, s, f, PCIR_COMMAND, 2); + cmd |= PCIM_CMD_PORTEN; + PCIB_WRITE_CONFIG(pcib, b, s, f, PCIR_COMMAND, cmd, 2); + } + if (type == SYS_RES_MEMORY && !pci_memen(pcib, b, s, f)) { + cmd = PCIB_READ_CONFIG(pcib, b, s, f, PCIR_COMMAND, 2); + cmd |= PCIM_CMD_MEMEN; + PCIB_WRITE_CONFIG(pcib, b, s, f, PCIR_COMMAND, cmd, 2); + } resource_list_add(rl, type, reg, base, base + (1 << ln2size) - 1, |
