powerpc/boot/cuboot.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * Compatibility for old (not device tree aware) U-Boot versions
0004  *
0005  * Author: Scott Wood <scottwood@freescale.com>
0006  * Consolidated using macros by David Gibson <david@gibson.dropbear.id.au>
0007  *
0008  * Copyright 2007 David Gibson, IBM Corporation.
0009  * Copyright (c) 2007 Freescale Semiconductor, Inc.
0010  */
0011
0012 #include "ops.h"
0013 #include "stdio.h"
0014
0015 #include "ppcboot.h"
0016
0017 void cuboot_init(unsigned long r4, unsigned long r5,
0018          unsigned long r6, unsigned long r7,
0019          unsigned long end_of_ram)
0020 {
0021     unsigned long avail_ram = end_of_ram - (unsigned long)_end;
0022
0023     loader_info.initrd_addr = r4;
0024     loader_info.initrd_size = r4 ? r5 - r4 : 0;
0025     loader_info.cmdline = (char *)r6;
0026     loader_info.cmdline_len = r7 - r6;
0027
0028     simple_alloc_init(_end, avail_ram - 1024*1024, 32, 64);
0029 }