xref: /openbmc/linux/arch/arm/mach-tegra/io.c (revision eb3fcf00)
1 /*
2  * arch/arm/mach-tegra/io.c
3  *
4  * Copyright (C) 2010 Google, Inc.
5  *
6  * Author:
7  *	Colin Cross <ccross@google.com>
8  *	Erik Gilling <konkers@google.com>
9  *
10  * This software is licensed under the terms of the GNU General Public
11  * License version 2, as published by the Free Software Foundation, and
12  * may be copied, distributed, and modified under those terms.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  * GNU General Public License for more details.
18  *
19  */
20 
21 #include <linux/init.h>
22 #include <linux/io.h>
23 #include <linux/kernel.h>
24 #include <linux/mm.h>
25 #include <linux/module.h>
26 
27 #include <asm/mach/map.h>
28 #include <asm/page.h>
29 
30 #include "board.h"
31 #include "iomap.h"
32 
33 static struct map_desc tegra_io_desc[] __initdata = {
34 	{
35 		.virtual = (unsigned long)IO_PPSB_VIRT,
36 		.pfn = __phys_to_pfn(IO_PPSB_PHYS),
37 		.length = IO_PPSB_SIZE,
38 		.type = MT_DEVICE,
39 	},
40 	{
41 		.virtual = (unsigned long)IO_APB_VIRT,
42 		.pfn = __phys_to_pfn(IO_APB_PHYS),
43 		.length = IO_APB_SIZE,
44 		.type = MT_DEVICE,
45 	},
46 	{
47 		.virtual = (unsigned long)IO_CPU_VIRT,
48 		.pfn = __phys_to_pfn(IO_CPU_PHYS),
49 		.length = IO_CPU_SIZE,
50 		.type = MT_DEVICE,
51 	},
52 	{
53 		.virtual = (unsigned long)IO_IRAM_VIRT,
54 		.pfn = __phys_to_pfn(IO_IRAM_PHYS),
55 		.length = IO_IRAM_SIZE,
56 		.type = MT_DEVICE,
57 	},
58 };
59 
60 void __init tegra_map_common_io(void)
61 {
62 	debug_ll_io_init();
63 	iotable_init(tegra_io_desc, ARRAY_SIZE(tegra_io_desc));
64 }
65