summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--arch/powerpc/sysdev/mpic.c2
-rw-r--r--include/linux/pci_regs.h21
2 files changed, 22 insertions, 1 deletions
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 723972bb5bd9..3ee03a9a98fa 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -341,7 +341,7 @@ static void __init mpic_scan_ht_pic(struct mpic *mpic, u8 __iomem *devbase,
u8 id = readb(devbase + pos + PCI_CAP_LIST_ID);
if (id == PCI_CAP_ID_HT) {
id = readb(devbase + pos + 3);
- if (id == 0x80)
+ if (id == HT_CAPTYPE_IRQ)
break;
}
}
diff --git a/include/linux/pci_regs.h b/include/linux/pci_regs.h
index 7d0e26cba420..c312a12ad2d6 100644
--- a/include/linux/pci_regs.h
+++ b/include/linux/pci_regs.h
@@ -12,6 +12,11 @@
* PCI Local Bus Specification
* PCI to PCI Bridge Specification
* PCI System Design Guide
+ *
+ * For hypertransport information, please consult the following manuals
+ * from http://www.hypertransport.org
+ *
+ * The Hypertransport I/O Link Specification
*/
#ifndef LINUX_PCI_REGS_H
@@ -463,4 +468,20 @@
#define PCI_PWR_CAP 12 /* Capability */
#define PCI_PWR_CAP_BUDGET(x) ((x) & 1) /* Included in system budget */
+/* Hypertransport sub capability types */
+#define HT_CAPTYPE_SLAVE 0x00 /* Slave/Primary link configuration */
+#define HT_CAPTYPE_HOST 0x20 /* Host/Secondary link configuration */
+#define HT_CAPTYPE_IRQ 0x80 /* IRQ Configuration */
+#define HT_CAPTYPE_REMAPPING_40 0xA0 /* 40 bit address remapping */
+#define HT_CAPTYPE_REMAPPING_64 0xA2 /* 64 bit address remapping */
+#define HT_CAPTYPE_UNITID_CLUMP 0x90 /* Unit ID clumping */
+#define HT_CAPTYPE_EXTCONF 0x98 /* Extended Configuration Space Access */
+#define HT_CAPTYPE_MSI_MAPPING 0xA8 /* MSI Mapping Capability */
+#define HT_CAPTYPE_DIRECT_ROUTE 0xB0 /* Direct routing configuration */
+#define HT_CAPTYPE_VCSET 0xB8 /* Virtual Channel configuration */
+#define HT_CAPTYPE_ERROR_RETRY 0xC0 /* Retry on error configuration */
+#define HT_CAPTYPE_GEN3 0xD0 /* Generation 3 hypertransport configuration */
+#define HT_CAPTYPE_PM 0xE0 /* Hypertransport powermanagement configuration */
+
+
#endif /* LINUX_PCI_REGS_H */