1 files changed, 53 insertions, 0 deletions
diff --git a/arch/arm/kernel/isa.c b/arch/arm/kernel/isa.c
new file mode 100644
index 000000000000..685c3e591a7e
--- /dev/null
+++ b/arch/arm/kernel/isa.c
@@ -0,0 +1,53 @@
+/*
+ *  linux/arch/arm/kernel/isa.c
+ *
+ *  Copyright (C) 1999 Phil Blundell
+ *
+ *  ISA shared memory and I/O port support
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+/* 
+ * Nothing about this is actually ARM specific.  One day we could move
+ * it into kernel/resource.c or some place like that.  
+ */
+
+#include <linux/stddef.h>
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/sysctl.h>
+#include <linux/init.h>
+
+static unsigned int isa_membase, isa_portbase, isa_portshift;
+
+static ctl_table ctl_isa_vars[4] = {
+	{BUS_ISA_MEM_BASE, "membase", &isa_membase, 
+	 sizeof(isa_membase), 0444, NULL, &proc_dointvec},
+	{BUS_ISA_PORT_BASE, "portbase", &isa_portbase, 
+	 sizeof(isa_portbase), 0444, NULL, &proc_dointvec},
+	{BUS_ISA_PORT_SHIFT, "portshift", &isa_portshift, 
+	 sizeof(isa_portshift), 0444, NULL, &proc_dointvec},
+	{0}
+};
+
+static struct ctl_table_header *isa_sysctl_header;
+
+static ctl_table ctl_isa[2] = {{CTL_BUS_ISA, "isa", NULL, 0, 0555, ctl_isa_vars},
+			       {0}};
+static ctl_table ctl_bus[2] = {{CTL_BUS, "bus", NULL, 0, 0555, ctl_isa},
+			       {0}};
+
+void __init
+register_isa_ports(unsigned int membase, unsigned int portbase, unsigned int portshift)
+{
+	isa_membase = membase;
+	isa_portbase = portbase;
+	isa_portshift = portshift;
+	isa_sysctl_header = register_sysctl_table(ctl_bus, 0);
+}