xref: /OK3568_Linux_fs/kernel/arch/powerpc/boot/cuboot.c (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun  * Compatibility for old (not device tree aware) U-Boot versions
4*4882a593Smuzhiyun  *
5*4882a593Smuzhiyun  * Author: Scott Wood <scottwood@freescale.com>
6*4882a593Smuzhiyun  * Consolidated using macros by David Gibson <david@gibson.dropbear.id.au>
7*4882a593Smuzhiyun  *
8*4882a593Smuzhiyun  * Copyright 2007 David Gibson, IBM Corporation.
9*4882a593Smuzhiyun  * Copyright (c) 2007 Freescale Semiconductor, Inc.
10*4882a593Smuzhiyun  */
11*4882a593Smuzhiyun 
12*4882a593Smuzhiyun #include "ops.h"
13*4882a593Smuzhiyun #include "stdio.h"
14*4882a593Smuzhiyun 
15*4882a593Smuzhiyun #include "ppcboot.h"
16*4882a593Smuzhiyun 
cuboot_init(unsigned long r4,unsigned long r5,unsigned long r6,unsigned long r7,unsigned long end_of_ram)17*4882a593Smuzhiyun void cuboot_init(unsigned long r4, unsigned long r5,
18*4882a593Smuzhiyun 		 unsigned long r6, unsigned long r7,
19*4882a593Smuzhiyun 		 unsigned long end_of_ram)
20*4882a593Smuzhiyun {
21*4882a593Smuzhiyun 	unsigned long avail_ram = end_of_ram - (unsigned long)_end;
22*4882a593Smuzhiyun 
23*4882a593Smuzhiyun 	loader_info.initrd_addr = r4;
24*4882a593Smuzhiyun 	loader_info.initrd_size = r4 ? r5 - r4 : 0;
25*4882a593Smuzhiyun 	loader_info.cmdline = (char *)r6;
26*4882a593Smuzhiyun 	loader_info.cmdline_len = r7 - r6;
27*4882a593Smuzhiyun 
28*4882a593Smuzhiyun 	simple_alloc_init(_end, avail_ram - 1024*1024, 32, 64);
29*4882a593Smuzhiyun }
30