1 files changed, 74 insertions, 0 deletions

diff --git a/arch/powerpc/boot/ep405.c b/arch/powerpc/boot/ep405.c
new file mode 100644
index 000000000000..2d08a862cbea
--- /dev/null
+++ b/arch/powerpc/boot/ep405.c
@@ -0,0 +1,74 @@
+/*
+ * Embedded Planet EP405 with PlanetCore firmware
+ *
+ * (c) Benjamin Herrenschmidt <benh@kernel.crashing.org>, IBM Corp,\
+ *
+ * Based on ep88xc.c by
+ *
+ * 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 "planetcore.h"
+#include "dcr.h"
+#include "4xx.h"
+#include "io.h"
+
+static char *table;
+static u64 mem_size;
+
+static void platform_fixups(void)
+{
+        u64 val;
+        void *nvrtc;
+
+        dt_fixup_memory(0, mem_size);
+        planetcore_set_mac_addrs(table);
+
+        if (!planetcore_get_decimal(table, PLANETCORE_KEY_CRYSTAL_HZ, &val)) {
+                printf("No PlanetCore crystal frequency key.\r\n");
+                return;
+        }
+        ibm405gp_fixup_clocks(val, 0xa8c000);
+        ibm4xx_quiesce_eth((u32 *)0xef600800, NULL);
+        ibm4xx_fixup_ebc_ranges("/plb/ebc");
+
+        if (!planetcore_get_decimal(table, PLANETCORE_KEY_KB_NVRAM, &val)) {
+                printf("No PlanetCore NVRAM size key.\r\n");
+                return;
+        }
+        nvrtc = finddevice("/plb/ebc/nvrtc@4,200000");
+        if (nvrtc != NULL) {
+                u32 reg[3] = { 4, 0x200000, 0};
+                getprop(nvrtc, "reg", reg, 3);
+                reg[2] = (val << 10) & 0xffffffff;
+                setprop(nvrtc, "reg", reg, 3);
+        }
+}
+
+void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+                   unsigned long r6, unsigned long r7)
+{
+        table = (char *)r3;
+        planetcore_prepare_table(table);
+
+        if (!planetcore_get_decimal(table, PLANETCORE_KEY_MB_RAM, &mem_size))
+                return;
+
+        mem_size *= 1024 * 1024;
+        simple_alloc_init(_end, mem_size - (unsigned long)_end, 32, 64);
+
+        fdt_init(_dtb_start);
+
+        planetcore_set_stdout_path(table);
+
+        serial_console_init();
+        platform_ops.fixups = platform_fixups;
+}