[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>

2 files changed, 70 insertions, 1 deletions

diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index b36f9113ad1f..7f6b07c30d69 100644
--- a/arch/powerpc/boot/Makefile
+++ b/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
diff --git a/arch/powerpc/boot/cuboot-85xx-cpm2.c b/arch/powerpc/boot/cuboot-85xx-cpm2.c
new file mode 100644
index 000000000000..723872ddd447
--- /dev/null
+++ b/arch/powerpc/boot/cuboot-85xx-cpm2.c
@@ -0,0 +1,66 @@
+/*
+ * 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;
+}