| /* |
| * Copyright 2010 Ben. Herrenschmidt, IBM Corporation. |
| * |
| * Based on earlier code: |
| * Copyright (C) Paul Mackerras 1997. |
| * |
| * Matt Porter <mporter@kernel.crashing.org> |
| * Copyright 2002-2005 MontaVista Software Inc. |
| * |
| * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net> |
| * Copyright (c) 2003, 2004 Zultys Technologies |
| * |
| * Copyright 2007 David Gibson, IBM Corporation. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| */ |
| #include <stdarg.h> |
| #include <stddef.h> |
| #include "types.h" |
| #include "elf.h" |
| #include "string.h" |
| #include "stdio.h" |
| #include "page.h" |
| #include "ops.h" |
| #include "reg.h" |
| #include "io.h" |
| #include "dcr.h" |
| #include "4xx.h" |
| #include "44x.h" |
| #include "libfdt.h" |
| |
| BSS_STACK(4096); |
| |
| static void iss_4xx_fixups(void) |
| { |
| ibm4xx_sdram_fixup_memsize(); |
| } |
| |
| #define SPRN_PIR 0x11E /* Processor Indentification Register */ |
| void platform_init(void) |
| { |
| unsigned long end_of_ram = 0x08000000; |
| unsigned long avail_ram = end_of_ram - (unsigned long)_end; |
| u32 pir_reg; |
| |
| simple_alloc_init(_end, avail_ram, 128, 64); |
| platform_ops.fixups = iss_4xx_fixups; |
| platform_ops.exit = ibm44x_dbcr_reset; |
| pir_reg = mfspr(SPRN_PIR); |
| fdt_set_boot_cpuid_phys(_dtb_start, pir_reg); |
| fdt_init(_dtb_start); |
| serial_console_init(); |
| } |