ARM: mach-shmobile: SH-Mobile AP4 support.
[linux-2.6.git] / arch / arm / mach-shmobile / board-ap4evb.c
1 /*
2  * AP4EVB board support
3  *
4  * Copyright (C) 2010  Magnus Damm
5  * Copyright (C) 2008  Yoshihiro Shimoda
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; version 2 of the License.
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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
19  */
20 #include <linux/kernel.h>
21 #include <linux/init.h>
22 #include <linux/interrupt.h>
23 #include <linux/irq.h>
24 #include <linux/platform_device.h>
25 #include <linux/delay.h>
26 #include <linux/mtd/mtd.h>
27 #include <linux/mtd/partitions.h>
28 #include <linux/mtd/physmap.h>
29 #include <linux/io.h>
30 #include <mach/common.h>
31 #include <asm/mach-types.h>
32 #include <asm/mach/arch.h>
33 #include <asm/mach/map.h>
34
35 static struct mtd_partition nor_flash_partitions[] = {
36         {
37                 .name           = "loader",
38                 .offset         = 0x00000000,
39                 .size           = 512 * 1024,
40         },
41         {
42                 .name           = "bootenv",
43                 .offset         = MTDPART_OFS_APPEND,
44                 .size           = 512 * 1024,
45         },
46         {
47                 .name           = "kernel_ro",
48                 .offset         = MTDPART_OFS_APPEND,
49                 .size           = 8 * 1024 * 1024,
50                 .mask_flags     = MTD_WRITEABLE,
51         },
52         {
53                 .name           = "kernel",
54                 .offset         = MTDPART_OFS_APPEND,
55                 .size           = 8 * 1024 * 1024,
56         },
57         {
58                 .name           = "data",
59                 .offset         = MTDPART_OFS_APPEND,
60                 .size           = MTDPART_SIZ_FULL,
61         },
62 };
63
64 static struct physmap_flash_data nor_flash_data = {
65         .width          = 2,
66         .parts          = nor_flash_partitions,
67         .nr_parts       = ARRAY_SIZE(nor_flash_partitions),
68 };
69
70 static struct resource nor_flash_resources[] = {
71         [0]     = {
72                 .start  = 0x00000000,
73                 .end    = 0x08000000 - 1,
74                 .flags  = IORESOURCE_MEM,
75         }
76 };
77
78 static struct platform_device nor_flash_device = {
79         .name           = "physmap-flash",
80         .dev            = {
81                 .platform_data  = &nor_flash_data,
82         },
83         .num_resources  = ARRAY_SIZE(nor_flash_resources),
84         .resource       = nor_flash_resources,
85 };
86
87
88 static struct platform_device *ap4evb_devices[] __initdata = {
89         &nor_flash_device,
90 };
91
92 static struct map_desc ap4evb_io_desc[] __initdata = {
93         /* create a 1:1 entity map for 0xe6xxxxxx
94          * used by CPGA, INTC and PFC.
95          */
96         {
97                 .virtual        = 0xe6000000,
98                 .pfn            = __phys_to_pfn(0xe6000000),
99                 .length         = 256 << 20,
100                 .type           = MT_DEVICE_NONSHARED
101         },
102 };
103
104 static void __init ap4evb_map_io(void)
105 {
106         iotable_init(ap4evb_io_desc, ARRAY_SIZE(ap4evb_io_desc));
107
108         /* setup early devices and clocks here as well */
109         sh7372_add_early_devices();
110         sh7367_clock_init(); /* use g3 clocks for now */
111 }
112
113 static void __init ap4evb_init(void)
114 {
115         sh7372_add_standard_devices();
116
117         platform_add_devices(ap4evb_devices, ARRAY_SIZE(ap4evb_devices));
118 }
119
120 MACHINE_START(AP4EVB, "ap4evb")
121         .phys_io        = 0xe6000000,
122         .io_pg_offst    = ((0xe6000000) >> 18) & 0xfffc,
123         .map_io         = ap4evb_map_io,
124         .init_irq       = sh7372_init_irq,
125         .init_machine   = ap4evb_init,
126         .timer          = &shmobile_timer,
127 MACHINE_END