diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-07-18 22:00:54 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-18 22:00:54 +0200 |
| commit | bb2c018b09b681d43f5e08124b83e362647ea82b (patch) | |
| tree | d794902c78f9fdd04ed88a4b8d451ed6f9292ec0 /arch/powerpc/platforms/pseries/eeh.c | |
| parent | 82638844d9a8581bbf33201cc209a14876eca167 (diff) | |
| parent | 5b664cb235e97afbf34db9c4d77f08ebd725335e (diff) | |
Merge branch 'linus' into cpus4096
Conflicts:
drivers/acpi/processor_throttling.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/powerpc/platforms/pseries/eeh.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/eeh.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index 6f544ba4b37f..c027f0a70a04 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -812,6 +812,7 @@ int rtas_set_slot_reset(struct pci_dn *pdn) static inline void __restore_bars (struct pci_dn *pdn) { int i; + u32 cmd; if (NULL==pdn->phb) return; for (i=4; i<10; i++) { @@ -832,6 +833,19 @@ static inline void __restore_bars (struct pci_dn *pdn) /* max latency, min grant, interrupt pin and line */ rtas_write_config(pdn, 15*4, 4, pdn->config_space[15]); + + /* Restore PERR & SERR bits, some devices require it, + don't touch the other command bits */ + rtas_read_config(pdn, PCI_COMMAND, 4, &cmd); + if (pdn->config_space[1] & PCI_COMMAND_PARITY) + cmd |= PCI_COMMAND_PARITY; + else + cmd &= ~PCI_COMMAND_PARITY; + if (pdn->config_space[1] & PCI_COMMAND_SERR) + cmd |= PCI_COMMAND_SERR; + else + cmd &= ~PCI_COMMAND_SERR; + rtas_write_config(pdn, PCI_COMMAND, 4, cmd); } /** |