Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
[linux-2.6] / arch / arm / mach-ep93xx / ts72xx.c
1 /*
2  * arch/arm/mach-ep93xx/ts72xx.c
3  * Technologic Systems TS72xx SBC support.
4  *
5  * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
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; either version 2 of the License, or (at
10  * your option) any later version.
11  */
12
13 #include <linux/config.h>
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/mm.h>
17 #include <linux/sched.h>
18 #include <linux/interrupt.h>
19 #include <linux/mtd/physmap.h>
20 #include <asm/io.h>
21 #include <asm/hardware.h>
22 #include <asm/mach-types.h>
23 #include <asm/mach/arch.h>
24 #include <asm/mach/map.h>
25
26 static struct map_desc ts72xx_io_desc[] __initdata = {
27         {
28                 .virtual        = TS72XX_MODEL_VIRT_BASE,
29                 .pfn            = __phys_to_pfn(TS72XX_MODEL_PHYS_BASE),
30                 .length         = TS72XX_MODEL_SIZE,
31                 .type           = MT_DEVICE,
32         }, {
33                 .virtual        = TS72XX_OPTIONS_VIRT_BASE,
34                 .pfn            = __phys_to_pfn(TS72XX_OPTIONS_PHYS_BASE),
35                 .length         = TS72XX_OPTIONS_SIZE,
36                 .type           = MT_DEVICE,
37         }, {
38                 .virtual        = TS72XX_OPTIONS2_VIRT_BASE,
39                 .pfn            = __phys_to_pfn(TS72XX_OPTIONS2_PHYS_BASE),
40                 .length         = TS72XX_OPTIONS2_SIZE,
41                 .type           = MT_DEVICE,
42         }
43 };
44
45 static struct map_desc ts72xx_nand_io_desc[] __initdata = {
46         {
47                 .virtual        = TS72XX_NAND_DATA_VIRT_BASE,
48                 .pfn            = __phys_to_pfn(TS72XX_NAND1_DATA_PHYS_BASE),
49                 .length         = TS72XX_NAND_DATA_SIZE,
50                 .type           = MT_DEVICE,
51         }, {
52                 .virtual        = TS72XX_NAND_CONTROL_VIRT_BASE,
53                 .pfn            = __phys_to_pfn(TS72XX_NAND1_CONTROL_PHYS_BASE),
54                 .length         = TS72XX_NAND_CONTROL_SIZE,
55                 .type           = MT_DEVICE,
56         }, {
57                 .virtual        = TS72XX_NAND_BUSY_VIRT_BASE,
58                 .pfn            = __phys_to_pfn(TS72XX_NAND1_BUSY_PHYS_BASE),
59                 .length         = TS72XX_NAND_BUSY_SIZE,
60                 .type           = MT_DEVICE,
61         }
62 };
63
64 static struct map_desc ts72xx_alternate_nand_io_desc[] __initdata = {
65         {
66                 .virtual        = TS72XX_NAND_DATA_VIRT_BASE,
67                 .pfn            = __phys_to_pfn(TS72XX_NAND2_DATA_PHYS_BASE),
68                 .length         = TS72XX_NAND_DATA_SIZE,
69                 .type           = MT_DEVICE,
70         }, {
71                 .virtual        = TS72XX_NAND_CONTROL_VIRT_BASE,
72                 .pfn            = __phys_to_pfn(TS72XX_NAND2_CONTROL_PHYS_BASE),
73                 .length         = TS72XX_NAND_CONTROL_SIZE,
74                 .type           = MT_DEVICE,
75         }, {
76                 .virtual        = TS72XX_NAND_BUSY_VIRT_BASE,
77                 .pfn            = __phys_to_pfn(TS72XX_NAND2_BUSY_PHYS_BASE),
78                 .length         = TS72XX_NAND_BUSY_SIZE,
79                 .type           = MT_DEVICE,
80         }
81 };
82
83 static void __init ts72xx_map_io(void)
84 {
85         ep93xx_map_io();
86         iotable_init(ts72xx_io_desc, ARRAY_SIZE(ts72xx_io_desc));
87
88         /*
89          * The TS-7200 has NOR flash, the other models have NAND flash.
90          */
91         if (!board_is_ts7200()) {
92                 if (is_ts9420_installed()) {
93                         iotable_init(ts72xx_alternate_nand_io_desc,
94                                 ARRAY_SIZE(ts72xx_alternate_nand_io_desc));
95                 } else {
96                         iotable_init(ts72xx_nand_io_desc,
97                                 ARRAY_SIZE(ts72xx_nand_io_desc));
98                 }
99         }
100 }
101
102 static void __init ts72xx_init_machine(void)
103 {
104         ep93xx_init_devices();
105         if (board_is_ts7200())
106                 physmap_configure(TS72XX_NOR_PHYS_BASE, 0x01000000, 1, NULL);
107 }
108
109 MACHINE_START(TS72XX, "Technologic Systems TS-72xx SBC")
110         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
111         .phys_io        = EP93XX_APB_PHYS_BASE,
112         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
113         .boot_params    = 0x00000100,
114         .map_io         = ts72xx_map_io,
115         .init_irq       = ep93xx_init_irq,
116         .timer          = &ep93xx_timer,
117         .init_machine   = ts72xx_init_machine,
118 MACHINE_END