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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>
16#include <linux/platform_device.h>
Rabin Vincentcc2c1332010-03-01 05:03:31 +010017#include <linux/io.h>
Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +010018
Rabin Vincentcc2c1332010-03-01 05:03:31 +010019#include <asm/localtimer.h>
Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +010020#include <asm/hardware/gic.h>
21#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
26/* add any platform devices here - TODO */
27static struct platform_device *platform_devs[] __initdata = {
28 /* yet to be added, add i2c0, gpio.. */
29};
30
31#define __IO_DEV_DESC(x, sz) { \
32 .virtual = IO_ADDRESS(x), \
33 .pfn = __phys_to_pfn(x), \
34 .length = sz, \
35 .type = MT_DEVICE, \
36}
37
38/* minimum static i/o mapping required to boot U8500 platforms */
39static struct map_desc u8500_io_desc[] __initdata = {
Rabin Vincent59778fb2010-02-12 06:23:07 +010040 __IO_DEV_DESC(U8500_UART2_BASE, SZ_4K),
Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +010041 __IO_DEV_DESC(U8500_GIC_CPU_BASE, SZ_4K),
42 __IO_DEV_DESC(U8500_GIC_DIST_BASE, SZ_4K),
Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +010043 __IO_DEV_DESC(U8500_TWD_BASE, SZ_4K),
44 __IO_DEV_DESC(U8500_SCU_BASE, SZ_4K),
45 __IO_DEV_DESC(U8500_BACKUPRAM0_BASE, SZ_8K),
46};
47
Rabin Vincent75a36ee2010-03-01 05:05:56 +010048static struct map_desc u8500ed_io_desc[] __initdata = {
49 __IO_DEV_DESC(U8500_MTU0_BASE_ED, SZ_4K),
50};
51
52static struct map_desc u8500v1_io_desc[] __initdata = {
53 __IO_DEV_DESC(U8500_MTU0_BASE_V1, SZ_4K),
54};
55
Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +010056void __init u8500_map_io(void)
57{
58 iotable_init(u8500_io_desc, ARRAY_SIZE(u8500_io_desc));
Rabin Vincent75a36ee2010-03-01 05:05:56 +010059
60 if (cpu_is_u8500ed())
61 iotable_init(u8500ed_io_desc, ARRAY_SIZE(u8500ed_io_desc));
62 else
63 iotable_init(u8500v1_io_desc, ARRAY_SIZE(u8500v1_io_desc));
Srinidhi Kasagaraa44ef42009-11-28 08:17:18 +010064}
65
66void __init u8500_init_irq(void)
67{
68 gic_dist_init(0, __io_address(U8500_GIC_DIST_BASE), 29);
69 gic_cpu_init(0, __io_address(U8500_GIC_CPU_BASE));
70}
71
72/*
73 * This function is called from the board init
74 */
75void __init u8500_init_devices(void)
76{
77 /* Register the platform devices */
78 platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
79
80 return ;
81}
Rabin Vincentcc2c1332010-03-01 05:03:31 +010082
83static void __init u8500_timer_init(void)
84{
85#ifdef CONFIG_LOCAL_TIMERS
86 /* Setup the local timer base */
87 twd_base = __io_address(U8500_TWD_BASE);
88#endif
89 /* Setup the MTU base */
Rabin Vincent75a36ee2010-03-01 05:05:56 +010090 if (cpu_is_u8500ed())
91 mtu_base = __io_address(U8500_MTU0_BASE_ED);
92 else
93 mtu_base = __io_address(U8500_MTU0_BASE_V1);
Rabin Vincentcc2c1332010-03-01 05:03:31 +010094
95 nmdk_timer_init();
96}
97
98struct sys_timer u8500_timer = {
99 .init = u8500_timer_init,
100};