[PATCH RESEND] ARM: PCI: Use PCI_CLASS_* defines for PCI class
Rostislav Lisovy
lisovy at gmail.com
Mon Sep 8 01:05:32 PDT 2014
Signed-off-by: Rostislav Lisovy <lisovy at gmail.com>
Reviewed-by: Yijing Wang <wangyijing at huawei.com>
---
The header file include/linux/pci_ids.h defines
#define PCI_CLASS_BRIDGE_OTHER 0x0680
#define PCI_CLASS_SYSTEM_DMA 0x0801
((struct pci_dev*)dev)->class
corresponds to the 3 bytes Class code in the PCI Configuration space
header -- 1B Base class, 1B Sub-class, 1B Reg-level interface.
In that case
(PCI_CLASS_BRIDGE_OTHER << 8)
is equivalent to 0x68000 (imagine the leading zero)
and
((PCI_CLASS_SYSTEM_DMA << 8) | 0x03))
is equivalent to 0x80103.
arch/arm/kernel/bios32.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index 17a26c1..e511ad1 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -255,10 +255,9 @@ static void pci_fixup_it8152(struct pci_dev *dev)
{
int i;
/* fixup for ITE 8152 devices */
- /* FIXME: add defines for class 0x68000 and 0x80103 */
if ((dev->class >> 8) == PCI_CLASS_BRIDGE_HOST ||
- dev->class == 0x68000 ||
- dev->class == 0x80103) {
+ dev->class == (PCI_CLASS_BRIDGE_OTHER << 8) ||
+ dev->class == ((PCI_CLASS_SYSTEM_DMA << 8) | 0x03)) {
for (i = 0; i < PCI_NUM_RESOURCES; i++) {
dev->resource[i].start = 0;
dev->resource[i].end = 0;
--
1.7.10.4
More information about the linux-arm-kernel
mailing list