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[pohmelfs.git] / arch / arm / mach-clps711x / p720t.c
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1 /*
2 * linux/arch/arm/mach-clps711x/p720t.c
4 * Copyright (C) 2000-2001 Deep Blue Solutions Ltd
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.
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.
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
20 #include <linux/config.h>
21 #include <linux/kernel.h>
22 #include <linux/init.h>
23 #include <linux/types.h>
24 #include <linux/string.h>
25 #include <linux/mm.h>
27 #include <asm/hardware.h>
28 #include <asm/io.h>
29 #include <asm/pgtable.h>
30 #include <asm/page.h>
31 #include <asm/setup.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>
37 #include "common.h"
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.
44 static struct map_desc p720t_io_desc[] __initdata = {
45 { SYSPLD_VIRT_BASE, SYSPLD_PHYS_BASE, 1048576, MT_DEVICE },
46 { 0xfe400000, 0x10400000, 1048576, MT_DEVICE }
49 static void __init
50 fixup_p720t(struct machine_desc *desc, struct tag *tag,
51 char **cmdline, struct meminfo *mi)
54 * Our bootloader doesn't setup any tags (yet).
56 if (tag->hdr.tag != ATAG_CORE) {
57 tag->hdr.tag = ATAG_CORE;
58 tag->hdr.size = tag_size(tag_core);
59 tag->u.core.flags = 0;
60 tag->u.core.pagesize = PAGE_SIZE;
61 tag->u.core.rootdev = 0x0100;
63 tag = tag_next(tag);
64 tag->hdr.tag = ATAG_MEM;
65 tag->hdr.size = tag_size(tag_mem32);
66 tag->u.mem.size = 4096;
67 tag->u.mem.start = PHYS_OFFSET;
69 tag = tag_next(tag);
70 tag->hdr.tag = ATAG_NONE;
71 tag->hdr.size = 0;
75 static void __init p720t_map_io(void)
77 clps711x_map_io();
78 iotable_init(p720t_io_desc, ARRAY_SIZE(p720t_io_desc));
81 MACHINE_START(P720T, "ARM-Prospector720T")
82 /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
83 .phys_ram = 0xc0000000,
84 .phys_io = 0x80000000,
85 .io_pg_offst = ((0xff000000) >> 18) & 0xfffc,
86 .boot_params = 0xc0000100,
87 .fixup = fixup_p720t,
88 .map_io = p720t_map_io,
89 .init_irq = clps711x_init_irq,
90 .timer = &clps711x_timer,
91 MACHINE_END
93 static int p720t_hw_init(void)
96 * Power down as much as possible in case we don't
97 * have the drivers loaded.
99 PLD_LCDEN = 0;
100 PLD_PWR &= ~(PLD_S4_ON|PLD_S3_ON|PLD_S2_ON|PLD_S1_ON);
102 PLD_KBD = 0;
103 PLD_IO = 0;
104 PLD_IRDA = 0;
105 PLD_CODEC = 0;
106 PLD_TCH = 0;
107 PLD_SPI = 0;
108 #ifndef CONFIG_DEBUG_LL
109 PLD_COM2 = 0;
110 PLD_COM1 = 0;
111 #endif
113 return 0;
116 __initcall(p720t_hw_init);