Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / powerpc / boot / cuboot-85xx.c

diff --git a/kernel/arch/powerpc/boot/cuboot-85xx.c b/kernel/arch/powerpc/boot/cuboot-85xx.c
new file mode 100644 (file)
index 0000000..277ba4a
--- /dev/null
+++ b/kernel/arch/powerpc/boot/cuboot-85xx.c
@@ -0,0 +1,62 @@
+/*
+ * Old U-boot compatibility for 85xx
+ *
+ * Author: Scott Wood <scottwood@freescale.com>
+ *
+ * Copyright (c) 2007 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include "ops.h"
+#include "stdio.h"
+#include "cuboot.h"
+
+#define TARGET_85xx
+#define TARGET_HAS_ETH3
+#include "ppcboot.h"
+
+static bd_t bd;
+
+static void platform_fixups(void)
+{
+       void *soc;
+
+       dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
+       dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
+       dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
+       dt_fixup_mac_address_by_alias("ethernet2", bd.bi_enet2addr);
+       dt_fixup_mac_address_by_alias("ethernet3", bd.bi_enet3addr);
+       dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 8, bd.bi_busfreq);
+
+       /* Unfortunately, the specific model number is encoded in the
+        * soc node name in existing dts files -- once that is fixed,
+        * this can do a simple path lookup.
+        */
+       soc = find_node_by_devtype(NULL, "soc");
+       if (soc) {
+               void *serial = NULL;
+
+               setprop(soc, "bus-frequency", &bd.bi_busfreq,
+                       sizeof(bd.bi_busfreq));
+
+               while ((serial = find_node_by_devtype(serial, "serial"))) {
+                       if (get_parent(serial) != soc)
+                               continue;
+
+                       setprop(serial, "clock-frequency", &bd.bi_busfreq,
+                               sizeof(bd.bi_busfreq));
+               }
+       }
+}
+
+void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+                   unsigned long r6, unsigned long r7)
+{
+       CUBOOT_INIT();
+       fdt_init(_dtb_start);
+       serial_console_init();
+       platform_ops.fixups = platform_fixups;
+}