From bd22c2b97514fbfb0e03bd9c72b3445e4dbd57e2 Mon Sep 17 00:00:00 2001
From: Jin Zhengxiong-R64188 <Jason.Jin@freescale.com>
Date: Tue, 27 Jun 2006 18:12:02 +0800
Subject: [PATCH] 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>
---
drivers/pci_auto.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/pci_auto.c b/drivers/pci_auto.c
index 15f74328f0..9e921b2148 100644
--- a/drivers/pci_auto.c
+++ b/drivers/pci_auto.c
@@ -102,7 +102,8 @@ void pciauto_setup_device(struct pci_controller *hose,
/* 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);
--
2.39.5