Juno uses a 1:1 mapping between CPU and PCI addresses for IO. First, that will trip devices that cannot use more than 16 bits of addresses for IO, second it is un-necessary as the system can handle zero-based PCI addresses just fine.
Change the mapping to start IO bus addresses from zero.
Signed-off-by: Liviu Dudau Liviu.Dudau@foss.arm.com --- board/armltd/vexpress64/pcie.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/board/armltd/vexpress64/pcie.c b/board/armltd/vexpress64/pcie.c index b3fb09c..0608a5a 100644 --- a/board/armltd/vexpress64/pcie.c +++ b/board/armltd/vexpress64/pcie.c @@ -123,7 +123,7 @@ void xr3pci_setup_atr(void) base += XR3PCI_ATR_TABLE_SIZE;
/* setup IO space translation */ - xr3pci_set_atr_entry(base, XR3_PCI_IOSPACE_START, XR3_PCI_IOSPACE_START, + xr3pci_set_atr_entry(base, XR3_PCI_IOSPACE_START, 0, XR3_PCI_IOSPACE_SIZE, XR3PCI_ATR_TRSLID_PCIE_IO);
base += XR3PCI_ATR_TABLE_SIZE;