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-rw-r--r--arch/powerpc/include/asm/io.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h
index a3855b8..f94ef42 100644
--- a/arch/powerpc/include/asm/io.h
+++ b/arch/powerpc/include/asm/io.h
@@ -20,6 +20,14 @@ extern int check_legacy_ioport(unsigned long base_port);
#define _PNPWRP 0xa79
#define PNPBIOS_BASE 0xf000
+#if defined(CONFIG_PPC64) && defined(CONFIG_PCI)
+extern struct pci_dev *isa_bridge_pcidev;
+/*
+ * has legacy ISA devices ?
+ */
+#define arch_has_dev_port() (isa_bridge_pcidev != NULL)
+#endif
+
#include <linux/device.h>
#include <linux/io.h>