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[POWERPC] FSL: Add support for PCI-X controllers

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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>
This commit is contained in:
Kumar Gala
2007-07-20 16:29:09 -05:00
parent 7391ff35b2
commit eb12af4333
1 changed files with 12 additions and 1 deletions
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11
arch/powerpc/sysdev/fsl_pci.c
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@@ -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) void __init setup_pci_cmd(struct pci_controller *hose)
{ {
u16 cmd; u16 cmd;
int cap_x;
early_read_config_word(hose, 0, 0, PCI_COMMAND, &cmd); early_read_config_word(hose, 0, 0, PCI_COMMAND, &cmd);
cmd |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY cmd |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY
| PCI_COMMAND_IO; | PCI_COMMAND_IO;
early_write_config_word(hose, 0, 0, PCI_COMMAND, cmd); early_write_config_word(hose, 0, 0, PCI_COMMAND, cmd);
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); early_write_config_byte(hose, 0, 0, PCI_LATENCY_TIMER, 0x80);
}
} }
static void __devinit quirk_fsl_pcie_transparent(struct pci_dev *dev) static void __devinit quirk_fsl_pcie_transparent(struct pci_dev *dev)