dany/u-boot-megous
1
0
Fork 0
mirror of https://xff.cz/git/u-boot/ synced 2025-09-02 17:22:22 +02:00
Code Issues Packages Projects Releases Wiki Activity

pci: Add a constant for an invalid interrupt

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/pci/pci.c
View File

@@ -269,7 +269,8 @@ int pci_hose_config_device(struct pci_controller *hose,
/* Disable interrupt line, if device says it wants to use interrupts */ /* Disable interrupt line, if device says it wants to use interrupts */
pci_hose_read_config_byte(hose, dev, PCI_INTERRUPT_PIN, &pin); pci_hose_read_config_byte(hose, dev, PCI_INTERRUPT_PIN, &pin);
if (pin != 0) { if (pin != 0) {
pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, 0xff); pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE,
PCI_INTERRUPT_LINE_DISABLE);
} }
pci_hose_read_config_dword(hose, dev, PCI_COMMAND, &old_command); pci_hose_read_config_dword(hose, dev, PCI_COMMAND, &old_command);

2
include/pci.h
View File

@@ -231,6 +231,8 @@
#define PCI_MIN_GNT 0x3e /* 8 bits */ #define PCI_MIN_GNT 0x3e /* 8 bits */
#define PCI_MAX_LAT 0x3f /* 8 bits */ #define PCI_MAX_LAT 0x3f /* 8 bits */
#define PCI_INTERRUPT_LINE_DISABLE 0xff
/* Header type 1 (PCI-to-PCI bridges) */ /* Header type 1 (PCI-to-PCI bridges) */
#define PCI_PRIMARY_BUS 0x18 /* Primary bus number */ #define PCI_PRIMARY_BUS 0x18 /* Primary bus number */
#define PCI_SECONDARY_BUS 0x19 /* Secondary bus number */ #define PCI_SECONDARY_BUS 0x19 /* Secondary bus number */