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| author | Kumar Gala | 2007-07-20 23:29:09 +0200 |
|---|---|---|
| committer | Kumar Gala | 2007-07-24 05:30:14 +0200 |
| commit | eb12af43333dd9d54158f35147a79628c41152db (patch) | |
| tree | 6dcd7624d648d4342d45a24710fdff3f30f19674 /arch | |
| parent | [POWERPC] Make sure virtual P2P bridge registers are setup on PCIe PHB (diff) | |
| download | kernel-qcow2-linux-eb12af43333dd9d54158f35147a79628c41152db.tar.gz kernel-qcow2-linux-eb12af43333dd9d54158f35147a79628c41152db.tar.xz kernel-qcow2-linux-eb12af43333dd9d54158f35147a79628c41152db.zip | |
[POWERPC] FSL: Add support for PCI-X controllers
Some set of 85xx platforms have PCI-X controllers. The old arch/ppc
code setup these controllers and we haven't moved it over to arch/powerpc.
We use the PCI-X Capabilties to know if we are in PCI-X mode instead
of the Global Utilities PORDEVSR.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/sysdev/fsl_pci.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c index f88a9aecdf16..13aaefc1af5b 100644 --- a/arch/powerpc/sysdev/fsl_pci.c +++ b/arch/powerpc/sysdev/fsl_pci.c @@ -89,11 +89,22 @@ void __init setup_pci_atmu(struct pci_controller *hose, struct resource *rsrc) void __init setup_pci_cmd(struct pci_controller *hose) { u16 cmd; + int cap_x; + early_read_config_word(hose, 0, 0, PCI_COMMAND, &cmd); cmd |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO; early_write_config_word(hose, 0, 0, PCI_COMMAND, cmd); - early_write_config_byte(hose, 0, 0, PCI_LATENCY_TIMER, 0x80); + + cap_x = early_find_capability(hose, 0, 0, PCI_CAP_ID_PCIX); + if (cap_x) { + int pci_x_cmd = cap_x + PCI_X_CMD; + cmd = PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ + | PCI_X_CMD_ERO | PCI_X_CMD_DPERR_E; + early_write_config_word(hose, 0, 0, pci_x_cmd, cmd); + } else { + early_write_config_byte(hose, 0, 0, PCI_LATENCY_TIMER, 0x80); + } } static void __devinit quirk_fsl_pcie_transparent(struct pci_dev *dev) |