From: David Feng fenghua@phytium.com.cn
u-boot did not program the upper 32 bits of prefetchable base and limit in pci bridge config space. I think it's needed when 64 bit address space is used.
Signed-off-by: David Feng fenghua@phytium.com.cn --- drivers/pci/pci_auto.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/pci_auto.c b/drivers/pci/pci_auto.c index 86ba6b5..896605a 100644 --- a/drivers/pci/pci_auto.c +++ b/drivers/pci/pci_auto.c @@ -226,6 +226,10 @@ void pciauto_prescan_setup_bridge(struct pci_controller *hose, /* Set up memory and I/O filter limits, assume 32-bit I/O space */ pci_hose_write_config_word(hose, dev, PCI_PREF_MEMORY_BASE, (pci_prefetch->bus_lower & 0xfff00000) >> 16); +#ifdef CONFIG_SYS_PCI_64BIT + pci_hose_write_config_dword(hose, dev, PCI_PREF_BASE_UPPER32, + pci_prefetch->bus_lower >> 32); +#endif
cmdstat |= PCI_COMMAND_MEMORY; } else { @@ -275,7 +279,11 @@ void pciauto_postscan_setup_bridge(struct pci_controller *hose, pciauto_region_align(pci_prefetch, 0x100000);
pci_hose_write_config_word(hose, dev, PCI_PREF_MEMORY_LIMIT, - (pci_prefetch->bus_lower - 1) >> 16); + (pci_prefetch->bus_lower - 1) >> 16); +#ifdef CONFIG_SYS_PCI_64BIT + pci_hose_write_config_dword(hose, dev, PCI_PREF_LIMIT_UPPER32, + (pci_prefetch->bus_lower - 1) >> 32); +#endif }
if (pci_io) {