[POWERPC] Add a cuboot wrapper for 85xx with CPM2

The bd info struct changes if we have CPM2 enabled in u-boot.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/boot/Makefile

@@ -63,7 +63,7 @@ src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c
 		cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c cuboot-bamboo.c \
 		fixed-head.S ep88xc.c cuboot-hpc2.c ep405.c cuboot-taishan.c \
 		cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c \
-		cuboot-warp.c
+		cuboot-warp.c cuboot-85xx-cpm2.c
 src-boot := $(src-wlib) $(src-plat) empty.c
 
 src-boot := $(addprefix $(obj)/, $(src-boot))
@@ -201,6 +201,9 @@ image-$(CONFIG_PPC_MPC52xx)		+= cuImage.52xx
 image-$(CONFIG_STORCENTER)		+= cuImage.824x
 image-$(CONFIG_PPC_83xx)		+= cuImage.83xx
 image-$(CONFIG_PPC_85xx)		+= cuImage.85xx
+ifeq ($(CONFIG_CPM2),y)
+image-$(CONFIG_PPC_85xx)		+= cuImage.85xx-cpm2
+endif
 image-$(CONFIG_MPC7448HPC2)		+= cuImage.hpc2
 image-$(CONFIG_EBONY)			+= treeImage.ebony cuImage.ebony
 image-$(CONFIG_BAMBOO)			+= treeImage.bamboo cuImage.bamboo

arch/powerpc/boot/cuboot-85xx-cpm2.c

+/*
+ * 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_CPM2
+#include "ppcboot.h"
+
+static bd_t bd;
+
+static void platform_fixups(void)
+{
+	void *devp;
+
+	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_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.
+	 */
+	devp = find_node_by_devtype(NULL, "soc");
+	if (devp) {
+		void *serial = NULL;
+
+		setprop(devp, "bus-frequency", &bd.bi_busfreq,
+		        sizeof(bd.bi_busfreq));
+
+		while ((serial = find_node_by_devtype(serial, "serial"))) {
+			if (get_parent(serial) != devp)
+				continue;
+
+			setprop(serial, "clock-frequency", &bd.bi_busfreq,
+			        sizeof(bd.bi_busfreq));
+		}
+	}
+
+	devp = find_node_by_compatible(NULL, "fsl,cpm2-brg");
+	if (devp)
+		setprop(devp, "clock-frequency", &bd.bi_brgfreq,
+		        sizeof(bd.bi_brgfreq));
+}
+
+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;
+}