Fix bug for io_bar size during pci scan
During the pci scan process, Some devices return bar_reponse with the
highest bytes 0, such as the pci bridge in uli1575 return bar_response
with 0xffffff, So the bar_size should be manually set under 64K.
Signed-off-by: Jason Jin <jason.jin@freescale.com>
diff --git a/drivers/pci_auto.c b/drivers/pci_auto.c
index 15f7432..9e921b2 100644
--- a/drivers/pci_auto.c
+++ b/drivers/pci_auto.c
@@ -102,7 +102,8 @@
/* Check the BAR type and set our address mask */
if (bar_response & PCI_BASE_ADDRESS_SPACE) {
- bar_size = ~(bar_response & PCI_BASE_ADDRESS_IO_MASK) + 1;
+ bar_size = ((~(bar_response & PCI_BASE_ADDRESS_IO_MASK))
+ & 0xffff) + 1;
bar_res = io;
DEBUGF("PCI Autoconfig: BAR %d, I/O, size=0x%x, ", bar_nr, bar_size);