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pci: Add a constant for an invalid interrupt

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Rather than using 0xff in the code, add a constant.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2015-07-27 15:47:17 -06:00
parent f134ed7df1
commit 5f48d798eb
2 changed files with 4 additions and 1 deletions
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2
include/pci.h
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@ -231,6 +231,8 @@
#define PCI_MIN_GNT 0x3e /* 8 bits */
#define PCI_MAX_LAT 0x3f /* 8 bits */
#define PCI_INTERRUPT_LINE_DISABLE 0xff
/* Header type 1 (PCI-to-PCI bridges) */
#define PCI_PRIMARY_BUS 0x18 /* Primary bus number */
#define PCI_SECONDARY_BUS 0x19 /* Secondary bus number */