xref: /openbmc/linux/arch/powerpc/boot/cuboot.c (revision e15a5365)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Compatibility for old (not device tree aware) U-Boot versions
4  *
5  * Author: Scott Wood <scottwood@freescale.com>
6  * Consolidated using macros by David Gibson <david@gibson.dropbear.id.au>
7  *
8  * Copyright 2007 David Gibson, IBM Corporation.
9  * Copyright (c) 2007 Freescale Semiconductor, Inc.
10  */
11 
12 #include "ops.h"
13 #include "stdio.h"
14 
15 #include "ppcboot.h"
16 
17 void cuboot_init(unsigned long r4, unsigned long r5,
18 		 unsigned long r6, unsigned long r7,
19 		 unsigned long end_of_ram)
20 {
21 	unsigned long avail_ram = end_of_ram - (unsigned long)_end;
22 
23 	loader_info.initrd_addr = r4;
24 	loader_info.initrd_size = r4 ? r5 - r4 : 0;
25 	loader_info.cmdline = (char *)r6;
26 	loader_info.cmdline_len = r7 - r6;
27 
28 	simple_alloc_init(_end, avail_ram - 1024*1024, 32, 64);
29 }
30