From bd22c2b97514fbfb0e03bd9c72b3445e4dbd57e2 Mon Sep 17 00:00:00 2001 From: Jin Zhengxiong-R64188 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 --- 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 15f7432..9e921b2 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);