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85aecac8d2
The various cuboot platforms (i.e. pre-device tree aware u-boot for 83xx, 85xx and Ebony) share a certain amount of code for parsing the boot parameters. To a certain extent that's inevitable, since they platforms have different definitions of the bd_t structure. However, with some macro work and a helper function, this patch improves the situation a bit. In the process, this fixes a bug on Ebony, which was incorrectly handling the parameters passed form u-boot for the command line (the bug was copied from 83xx and 85xx which have subsequently been fixed). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
35 lines
1,003 B
C
35 lines
1,003 B
C
/*
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* Compatibility for old (not device tree aware) U-Boot versions
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*
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* Author: Scott Wood <scottwood@freescale.com>
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* Consolidated using macros by David Gibson <david@gibson.dropbear.id.au>
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*
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* Copyright 2007 David Gibson, IBM Corporation.
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* Copyright (c) 2007 Freescale Semiconductor, Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include "ops.h"
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#include "stdio.h"
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#include "ppcboot.h"
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extern char _end[];
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extern char _dtb_start[], _dtb_end[];
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void cuboot_init(unsigned long r4, unsigned long r5,
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unsigned long r6, unsigned long r7,
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unsigned long end_of_ram)
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{
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unsigned long avail_ram = end_of_ram - (unsigned long)_end;
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loader_info.initrd_addr = r4;
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loader_info.initrd_size = r4 ? r5 - r4 : 0;
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loader_info.cmdline = (char *)r6;
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loader_info.cmdline_len = r7 - r6;
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simple_alloc_init(_end, avail_ram - 1024*1024, 32, 64);
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}
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