1 /*
2  *  This program is free software; you can redistribute it and/or modify it
3  *  under the terms of the GNU General Public License version 2 as published
4  *  by the Free Software Foundation.
5  *
6  * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
7  */
8 
9 #include <linux/kernel.h>
10 #include <linux/export.h>
11 #include <linux/io.h>
12 #include <linux/ioport.h>
13 #include <asm/bootinfo.h>
14 
15 #include <lantiq_soc.h>
16 
17 #include "machtypes.h"
18 #include "devices.h"
19 #include "prom.h"
20 
plat_mem_setup(void)21 void __init plat_mem_setup(void)
22 {
23 	/* assume 16M as default incase uboot fails to pass proper ramsize */
24 	unsigned long memsize = 16;
25 	char **envp = (char **) KSEG1ADDR(fw_arg2);
26 
27 	ioport_resource.start = IOPORT_RESOURCE_START;
28 	ioport_resource.end = IOPORT_RESOURCE_END;
29 	iomem_resource.start = IOMEM_RESOURCE_START;
30 	iomem_resource.end = IOMEM_RESOURCE_END;
31 
32 	set_io_port_base((unsigned long) KSEG1);
33 
34 	while (*envp) {
35 		char *e = (char *)KSEG1ADDR(*envp);
36 		if (!strncmp(e, "memsize=", 8)) {
37 			e += 8;
38 			if (strict_strtoul(e, 0, &memsize))
39 				pr_warn("bad memsize specified\n");
40 		}
41 		envp++;
42 	}
43 	memsize *= 1024 * 1024;
44 	add_memory_region(0x00000000, memsize, BOOT_MEM_RAM);
45 }
46 
47 static int __init
lantiq_setup(void)48 lantiq_setup(void)
49 {
50 	ltq_soc_setup();
51 	mips_machine_setup();
52 	return 0;
53 }
54 
55 arch_initcall(lantiq_setup);
56 
57 static void __init
lantiq_generic_init(void)58 lantiq_generic_init(void)
59 {
60 	/* Nothing to do */
61 }
62 
63 MIPS_MACHINE(LTQ_MACH_GENERIC,
64 	     "Generic",
65 	     "Generic Lantiq based board",
66 	     lantiq_generic_init);
67