1 files changed, 53 insertions, 0 deletions

diff --git a/include/asm-x86/visws/lithium.h b/include/asm-x86/visws/lithium.h
new file mode 100644
index 000000000000..dfcd4f07ab85
--- /dev/null
+++ b/include/asm-x86/visws/lithium.h
@@ -0,0 +1,53 @@
+#ifndef __I386_SGI_LITHIUM_H
+#define __I386_SGI_LITHIUM_H
+
+#include <asm/fixmap.h>
+
+/*
+ * Lithium is the SGI Visual Workstation I/O ASIC
+ */
+
+#define LI_PCI_A_PHYS           0xfc000000      /* Enet is dev 3 */
+#define LI_PCI_B_PHYS           0xfd000000      /* PIIX4 is here */
+
+/* see set_fixmap() and asm/fixmap.h */
+#define LI_PCIA_VADDR   (fix_to_virt(FIX_LI_PCIA))
+#define LI_PCIB_VADDR   (fix_to_virt(FIX_LI_PCIB))
+
+/* Not a standard PCI? (not in linux/pci.h) */
+#define LI_PCI_BUSNUM   0x44                    /* lo8: primary, hi8: sub */
+#define LI_PCI_INTEN    0x46
+
+/* LI_PCI_INTENT bits */
+#define LI_INTA_0       0x0001
+#define LI_INTA_1       0x0002
+#define LI_INTA_2       0x0004
+#define LI_INTA_3       0x0008
+#define LI_INTA_4       0x0010
+#define LI_INTB         0x0020
+#define LI_INTC         0x0040
+#define LI_INTD         0x0080
+
+/* More special purpose macros... */
+static inline void li_pcia_write16(unsigned long reg, unsigned short v)
+{
+        *((volatile unsigned short *)(LI_PCIA_VADDR+reg))=v;
+}
+
+static inline unsigned short li_pcia_read16(unsigned long reg)
+{
+         return *((volatile unsigned short *)(LI_PCIA_VADDR+reg));
+}
+
+static inline void li_pcib_write16(unsigned long reg, unsigned short v)
+{
+        *((volatile unsigned short *)(LI_PCIB_VADDR+reg))=v;
+}
+
+static inline unsigned short li_pcib_read16(unsigned long reg)
+{
+        return *((volatile unsigned short *)(LI_PCIB_VADDR+reg));
+}
+
+#endif
+