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path: root/drivers/pci/hotplug/shpchp_pci.c
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Diffstat (limited to 'drivers/pci/hotplug/shpchp_pci.c')
-rw-r--r--drivers/pci/hotplug/shpchp_pci.c31
1 files changed, 19 insertions, 12 deletions
diff --git a/drivers/pci/hotplug/shpchp_pci.c b/drivers/pci/hotplug/shpchp_pci.c
index 257adc233996..0a6b25ef194c 100644
--- a/drivers/pci/hotplug/shpchp_pci.c
+++ b/drivers/pci/hotplug/shpchp_pci.c
@@ -47,21 +47,28 @@ static void program_fw_provided_values(struct pci_dev *dev)
return;
/* use default values if we can't get them from firmware */
- if (get_hp_params_from_firmware(dev, &hpp)) {
- hpp.cache_line_size = 8;
- hpp.latency_timer = 0x40;
- hpp.enable_serr = 0;
- hpp.enable_perr = 0;
+ if (get_hp_params_from_firmware(dev, &hpp) ||
+ !hpp.t0 || (hpp.t0->revision > 1)) {
+ printk(KERN_WARNING
+ "%s: Could not get hotplug parameters. Use defaults\n",
+ __FUNCTION__);
+ hpp.t0 = &hpp.type0_data;
+ hpp.t0->revision = 0;
+ hpp.t0->cache_line_size = 8;
+ hpp.t0->latency_timer = 0x40;
+ hpp.t0->enable_serr = 0;
+ hpp.t0->enable_perr = 0;
}
- pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, hpp.cache_line_size);
- pci_write_config_byte(dev, PCI_LATENCY_TIMER, hpp.latency_timer);
+ pci_write_config_byte(dev,
+ PCI_CACHE_LINE_SIZE, hpp.t0->cache_line_size);
+ pci_write_config_byte(dev, PCI_LATENCY_TIMER, hpp.t0->latency_timer);
pci_read_config_word(dev, PCI_COMMAND, &pci_cmd);
- if (hpp.enable_serr)
+ if (hpp.t0->enable_serr)
pci_cmd |= PCI_COMMAND_SERR;
else
pci_cmd &= ~PCI_COMMAND_SERR;
- if (hpp.enable_perr)
+ if (hpp.t0->enable_perr)
pci_cmd |= PCI_COMMAND_PARITY;
else
pci_cmd &= ~PCI_COMMAND_PARITY;
@@ -70,13 +77,13 @@ static void program_fw_provided_values(struct pci_dev *dev)
/* Program bridge control value and child devices */
if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
pci_write_config_byte(dev, PCI_SEC_LATENCY_TIMER,
- hpp.latency_timer);
+ hpp.t0->latency_timer);
pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &pci_bctl);
- if (hpp.enable_serr)
+ if (hpp.t0->enable_serr)
pci_bctl |= PCI_BRIDGE_CTL_SERR;
else
pci_bctl &= ~PCI_BRIDGE_CTL_SERR;
- if (hpp.enable_perr)
+ if (hpp.t0->enable_perr)
pci_bctl |= PCI_BRIDGE_CTL_PARITY;
else
pci_bctl &= ~PCI_BRIDGE_CTL_PARITY;