+#ifdef CONFIG_OF_ISA_BUS
+
+/* ISA bus translator */
+static int of_bus_isa_match(const void *blob, int parentoffset)
+{
+ const char *name;
+
+ name = fdt_get_name(blob, parentoffset, NULL);
+ if (!name)
+ return 0;
+
+ return !strcmp(name, "isa");
+}
+
+static void of_bus_isa_count_cells(const void *blob, int parentoffset,
+ int *addrc, int *sizec)
+{
+ if (addrc)
+ *addrc = 2;
+ if (sizec)
+ *sizec = 1;
+}
+
+static u64 of_bus_isa_map(fdt32_t *addr, const fdt32_t *range,
+ int na, int ns, int pna)
+{
+ u64 cp, s, da;
+
+ /* Check address type match */
+ if ((addr[0] ^ range[0]) & cpu_to_be32(1))
+ return OF_BAD_ADDR;
+
+ cp = of_read_number(range + 1, na - 1);
+ s = of_read_number(range + na + pna, ns);
+ da = of_read_number(addr + 1, na - 1);
+
+ debug("OF: ISA map, cp=%" PRIu64 ", s=%" PRIu64
+ ", da=%" PRIu64 "\n", cp, s, da);
+
+ if (da < cp || da >= (cp + s))
+ return OF_BAD_ADDR;
+ return da - cp;
+}
+
+static int of_bus_isa_translate(fdt32_t *addr, u64 offset, int na)
+{
+ return of_bus_default_translate(addr + 1, offset, na - 1);
+}
+
+#endif /* CONFIG_OF_ISA_BUS */
+