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gerrit-public.fairphone.software / kernel / msm-4.9 / cd090eedd85256829f762677d0752a846c1b88b9 / . / arch / arm / mach-ep93xx / ts72xx.c
blob: 777e75daa8a546dc2da62902d2a7f852ca10821d [file] [log] [blame]
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000[diff] [blame]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
26static 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
45static 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
64static 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
83static 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
102static 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
109MACHINE_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,
118MACHINE_END