1/*
2 *  linux/arch/arm/mach-clps711x/p720t.c
3 *
4 *  Copyright (C) 2000-2001 Deep Blue Solutions Ltd
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19 */
20#include <linux/kernel.h>
21#include <linux/init.h>
22#include <linux/types.h>
23#include <linux/string.h>
24#include <linux/mm.h>
25
26#include <asm/hardware.h>
27#include <asm/io.h>
28#include <asm/pgtable.h>
29#include <asm/page.h>
30#include <asm/setup.h>
31#include <asm/sizes.h>
32#include <asm/mach-types.h>
33#include <asm/mach/arch.h>
34#include <asm/mach/map.h>
35#include <asm/arch/syspld.h>
36
37#include "common.h"
38
39/*
40 * Map the P720T system PLD.  It occupies two address spaces:
41 *  SYSPLD_PHYS_BASE and SYSPLD_PHYS_BASE + 0x00400000
42 * We map both here.
43 */
44static struct map_desc p720t_io_desc[] __initdata = {
45	{
46		.virtual	= SYSPLD_VIRT_BASE,
47		.pfn		= __phys_to_pfn(SYSPLD_PHYS_BASE),
48		.length		= SZ_1M,
49		.type		= MT_DEVICE
50	}, {
51		.virtual	= 0xfe400000,
52		.pfn		= __phys_to_pfn(0x10400000),
53		.length		= SZ_1M,
54		.type		= MT_DEVICE
55	}
56};
57
58static void __init
59fixup_p720t(struct machine_desc *desc, struct tag *tag,
60	    char **cmdline, struct meminfo *mi)
61{
62	/*
63	 * Our bootloader doesn't setup any tags (yet).
64	 */
65	if (tag->hdr.tag != ATAG_CORE) {
66		tag->hdr.tag = ATAG_CORE;
67		tag->hdr.size = tag_size(tag_core);
68		tag->u.core.flags = 0;
69		tag->u.core.pagesize = PAGE_SIZE;
70		tag->u.core.rootdev = 0x0100;
71
72		tag = tag_next(tag);
73		tag->hdr.tag = ATAG_MEM;
74		tag->hdr.size = tag_size(tag_mem32);
75		tag->u.mem.size = 4096;
76		tag->u.mem.start = PHYS_OFFSET;
77
78		tag = tag_next(tag);
79		tag->hdr.tag = ATAG_NONE;
80		tag->hdr.size = 0;
81	}
82}
83
84static void __init p720t_map_io(void)
85{
86	clps711x_map_io();
87	iotable_init(p720t_io_desc, ARRAY_SIZE(p720t_io_desc));
88}
89
90MACHINE_START(P720T, "ARM-Prospector720T")
91	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
92	.phys_io	= 0x80000000,
93	.io_pg_offst	= ((0xff000000) >> 18) & 0xfffc,
94	.boot_params	= 0xc0000100,
95	.fixup		= fixup_p720t,
96	.map_io		= p720t_map_io,
97	.init_irq	= clps711x_init_irq,
98	.timer		= &clps711x_timer,
99MACHINE_END
100
101static int p720t_hw_init(void)
102{
103	/*
104	 * Power down as much as possible in case we don't
105	 * have the drivers loaded.
106	 */
107	PLD_LCDEN = 0;
108	PLD_PWR  &= ~(PLD_S4_ON|PLD_S3_ON|PLD_S2_ON|PLD_S1_ON);
109
110	PLD_KBD   = 0;
111	PLD_IO    = 0;
112	PLD_IRDA  = 0;
113	PLD_CODEC = 0;
114	PLD_TCH   = 0;
115	PLD_SPI   = 0;
116#ifndef CONFIG_DEBUG_LL
117	PLD_COM2  = 0;
118	PLD_COM1  = 0;
119#endif
120
121	return 0;
122}
123
124__initcall(p720t_hw_init);
125