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Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +01001/*
2 * Copyright (C) 2008-2009 ST-Ericsson
3 *
4 * Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2, as
8 * published by the Free Software Foundation.
9 *
10 */
11#include <linux/types.h>
12#include <linux/init.h>
13#include <linux/device.h>
14#include <linux/amba/bus.h>
15#include <linux/irq.h>
Rabin Vincent94bdc0e2010-03-03 04:54:37 +010016#include <linux/gpio.h>
Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +010017#include <linux/platform_device.h>
Rabin Vincentcc2c1332010-03-01 05:03:31 +010018#include <linux/io.h>
Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +010019
Rabin Vincentcc2c1332010-03-01 05:03:31 +010020#include <asm/localtimer.h>
Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +010021#include <asm/mach/map.h>
Rabin Vincentcc2c1332010-03-01 05:03:31 +010022#include <plat/mtu.h>
Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +010023#include <mach/hardware.h>
Rabin Vincentcc2c1332010-03-01 05:03:31 +010024#include <mach/setup.h>
Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +010025
Rabin Vincent94bdc0e2010-03-03 04:54:37 +010026#define GPIO_RESOURCE(block) \
27 { \
28 .start = U8500_GPIOBANK##block##_BASE, \
29 .end = U8500_GPIOBANK##block##_BASE + 127, \
30 .flags = IORESOURCE_MEM, \
31 }, \
32 { \
33 .start = IRQ_GPIO##block, \
34 .end = IRQ_GPIO##block, \
35 .flags = IORESOURCE_IRQ, \
36 }
37
38#define GPIO_DEVICE(block) \
39 { \
40 .name = "gpio", \
41 .id = block, \
42 .num_resources = 2, \
43 .resource = &u8500_gpio_resources[block * 2], \
44 .dev = { \
45 .platform_data = &u8500_gpio_data[block], \
46 }, \
47 }
48
49#define GPIO_DATA(_name, first) \
50 { \
51 .name = _name, \
52 .first_gpio = first, \
53 .first_irq = NOMADIK_GPIO_TO_IRQ(first), \
54 }
55
56static struct nmk_gpio_platform_data u8500_gpio_data[] = {
57 GPIO_DATA("GPIO-0-31", 0),
58 GPIO_DATA("GPIO-32-63", 32), /* 37..63 not routed to pin */
59 GPIO_DATA("GPIO-64-95", 64),
60 GPIO_DATA("GPIO-96-127", 96), /* 97..127 not routed to pin */
61 GPIO_DATA("GPIO-128-159", 128),
62 GPIO_DATA("GPIO-160-191", 160), /* 172..191 not routed to pin */
63 GPIO_DATA("GPIO-192-223", 192),
64 GPIO_DATA("GPIO-224-255", 224), /* 231..255 not routed to pin */
65 GPIO_DATA("GPIO-256-288", 256), /* 258..288 not routed to pin */
66};
67
68static struct resource u8500_gpio_resources[] = {
69 GPIO_RESOURCE(0),
70 GPIO_RESOURCE(1),
71 GPIO_RESOURCE(2),
72 GPIO_RESOURCE(3),
73 GPIO_RESOURCE(4),
74 GPIO_RESOURCE(5),
75 GPIO_RESOURCE(6),
76 GPIO_RESOURCE(7),
77 GPIO_RESOURCE(8),
78};
79
80static struct platform_device u8500_gpio_devs[] = {
81 GPIO_DEVICE(0),
82 GPIO_DEVICE(1),
83 GPIO_DEVICE(2),
84 GPIO_DEVICE(3),
85 GPIO_DEVICE(4),
86 GPIO_DEVICE(5),
87 GPIO_DEVICE(6),
88 GPIO_DEVICE(7),
89 GPIO_DEVICE(8),
90};
91
Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +010092static struct platform_device *platform_devs[] __initdata = {
Rabin Vincent94bdc0e2010-03-03 04:54:37 +010093 &u8500_gpio_devs[0],
94 &u8500_gpio_devs[1],
95 &u8500_gpio_devs[2],
96 &u8500_gpio_devs[3],
97 &u8500_gpio_devs[4],
98 &u8500_gpio_devs[5],
99 &u8500_gpio_devs[6],
100 &u8500_gpio_devs[7],
101 &u8500_gpio_devs[8],
Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +0100102};
103
Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +0100104/* minimum static i/o mapping required to boot U8500 platforms */
105static struct map_desc u8500_io_desc[] __initdata = {
Rabin Vincent1df20af2010-03-01 05:07:47 +0100106 __IO_DEV_DESC(U8500_PRCMU_BASE, SZ_4K),
Rabin Vincentc9c09572010-05-03 07:34:53 +0100107 __IO_DEV_DESC(U8500_GPIO0_BASE, SZ_4K),
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100108 __IO_DEV_DESC(U8500_GPIO1_BASE, SZ_4K),
109 __IO_DEV_DESC(U8500_GPIO2_BASE, SZ_4K),
110 __IO_DEV_DESC(U8500_GPIO3_BASE, SZ_4K),
Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +0100111};
112
Rabin Vincent75a36ee2010-03-01 05:05:56 +0100113static struct map_desc u8500ed_io_desc[] __initdata = {
114 __IO_DEV_DESC(U8500_MTU0_BASE_ED, SZ_4K),
Rabin Vincent1df20af2010-03-01 05:07:47 +0100115 __IO_DEV_DESC(U8500_CLKRST7_BASE_ED, SZ_8K),
Rabin Vincent75a36ee2010-03-01 05:05:56 +0100116};
117
118static struct map_desc u8500v1_io_desc[] __initdata = {
Rabin Vincentc9c09572010-05-03 07:34:53 +0100119 __IO_DEV_DESC(U8500_MTU0_BASE, SZ_4K),
Rabin Vincent75a36ee2010-03-01 05:05:56 +0100120};
121
Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +0100122void __init u8500_map_io(void)
123{
Rabin Vincent178980f2010-05-03 07:39:02 +0100124 ux500_map_io();
125
Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +0100126 iotable_init(u8500_io_desc, ARRAY_SIZE(u8500_io_desc));
Rabin Vincent75a36ee2010-03-01 05:05:56 +0100127
128 if (cpu_is_u8500ed())
129 iotable_init(u8500ed_io_desc, ARRAY_SIZE(u8500ed_io_desc));
130 else
131 iotable_init(u8500v1_io_desc, ARRAY_SIZE(u8500v1_io_desc));
Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +0100132}
133
Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +0100134/*
135 * This function is called from the board init
136 */
137void __init u8500_init_devices(void)
138{
139 /* Register the platform devices */
140 platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
141
142 return ;
143}
Rabin Vincentcc2c1332010-03-01 05:03:31 +0100144
145static void __init u8500_timer_init(void)
146{
147#ifdef CONFIG_LOCAL_TIMERS
148 /* Setup the local timer base */
149 twd_base = __io_address(U8500_TWD_BASE);
150#endif
151 /* Setup the MTU base */
Rabin Vincent75a36ee2010-03-01 05:05:56 +0100152 if (cpu_is_u8500ed())
153 mtu_base = __io_address(U8500_MTU0_BASE_ED);
154 else
Rabin Vincentc9c09572010-05-03 07:34:53 +0100155 mtu_base = __io_address(U8500_MTU0_BASE);
Rabin Vincentcc2c1332010-03-01 05:03:31 +0100156
157 nmdk_timer_init();
158}
159
160struct sys_timer u8500_timer = {
161 .init = u8500_timer_init,
162};