From: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Without I/O ports won't work.
Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
---
arch/mips/include/asm/prom.h | 15 +++++++++++++++
1 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/arch/mips/include/asm/prom.h b/arch/mips/include/asm/prom.h
index 7a6e82e..40ed259 100644
--- a/arch/mips/include/asm/prom.h
+++ b/arch/mips/include/asm/prom.h
@@ -12,6 +12,9 @@
#define __ASM_PROM_H
#ifdef CONFIG_OF
+#include <linux/bug.h>
+#include <linux/io.h>
+#include <linux/types.h>
#include <asm/bootinfo.h>
extern int early_init_dt_scan_memory_arch(unsigned long node,
@@ -21,6 +24,18 @@ extern int reserve_mem_mach(unsigned long addr, unsigned long size);
extern void free_mem_mach(unsigned long addr, unsigned long size);
extern void device_tree_init(void);
+
+static inline unsigned long pci_address_to_pio(phys_addr_t address)
+{
+ /*
+ * The ioport address can be directly used by inX() / outX()
+ */
+ BUG_ON(address > IO_SPACE_LIMIT);
+
+ return (unsigned long) address;
+}
+#define pci_address_to_pio pci_address_to_pio
+
#else /* CONFIG_OF */
static inline void device_tree_init(void) { }
#endif /* CONFIG_OF */
--
1.7.9.1
