powerpc/boot/holly.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * Copyright 2007 IBM Corporation
0004  *
0005  * Stephen Winiecki <stevewin@us.ibm.com>
0006  * Josh Boyer <jwboyer@linux.vnet.ibm.com>
0007  *
0008  * Based on earlier code:
0009  * Copyright (C) Paul Mackerras 1997.
0010  */
0011 #include <stdarg.h>
0012 #include <stddef.h>
0013 #include "types.h"
0014 #include "elf.h"
0015 #include "string.h"
0016 #include "stdio.h"
0017 #include "page.h"
0018 #include "ops.h"
0019 #include "io.h"
0020
0021 BSS_STACK(4096);
0022
0023 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5)
0024 {
0025     u32 heapsize = 0x8000000 - (u32)_end; /* 128M */
0026
0027     simple_alloc_init(_end, heapsize, 32, 64);
0028     fdt_init(_dtb_start);
0029     serial_console_init();
0030 }