2 * Copyright (C) 2008-2009 ST-Ericsson
4 * Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
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.
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>
19 #include <asm/localtimer.h>
20 #include <asm/hardware/gic.h>
21 #include <asm/mach/map.h>
23 #include <mach/hardware.h>
24 #include <mach/setup.h>
26 /* add any platform devices here - TODO */
27 static struct platform_device *platform_devs[] __initdata = {
28 /* yet to be added, add i2c0, gpio.. */
31 #define __IO_DEV_DESC(x, sz) { \
32 .virtual = IO_ADDRESS(x), \
33 .pfn = __phys_to_pfn(x), \
38 /* minimum static i/o mapping required to boot U8500 platforms */
39 static struct map_desc u8500_io_desc[] __initdata = {
40 __IO_DEV_DESC(U8500_UART2_BASE, SZ_4K),
41 __IO_DEV_DESC(U8500_GIC_CPU_BASE, SZ_4K),
42 __IO_DEV_DESC(U8500_GIC_DIST_BASE, SZ_4K),
43 __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 __IO_DEV_DESC(U8500_PRCMU_BASE, SZ_4K),
47 __IO_DEV_DESC(U8500_CLKRST1_BASE, SZ_4K),
48 __IO_DEV_DESC(U8500_CLKRST2_BASE, SZ_4K),
49 __IO_DEV_DESC(U8500_CLKRST3_BASE, SZ_4K),
50 __IO_DEV_DESC(U8500_CLKRST5_BASE, SZ_4K),
51 __IO_DEV_DESC(U8500_CLKRST6_BASE, SZ_4K),
54 static struct map_desc u8500ed_io_desc[] __initdata = {
55 __IO_DEV_DESC(U8500_MTU0_BASE_ED, SZ_4K),
56 __IO_DEV_DESC(U8500_CLKRST7_BASE_ED, SZ_8K),
59 static struct map_desc u8500v1_io_desc[] __initdata = {
60 __IO_DEV_DESC(U8500_MTU0_BASE_V1, SZ_4K),
63 void __init u8500_map_io(void)
65 iotable_init(u8500_io_desc, ARRAY_SIZE(u8500_io_desc));
68 iotable_init(u8500ed_io_desc, ARRAY_SIZE(u8500ed_io_desc));
70 iotable_init(u8500v1_io_desc, ARRAY_SIZE(u8500v1_io_desc));
73 void __init u8500_init_irq(void)
75 gic_dist_init(0, __io_address(U8500_GIC_DIST_BASE), 29);
76 gic_cpu_init(0, __io_address(U8500_GIC_CPU_BASE));
80 * This function is called from the board init
82 void __init u8500_init_devices(void)
84 /* Register the platform devices */
85 platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
90 static void __init u8500_timer_init(void)
92 #ifdef CONFIG_LOCAL_TIMERS
93 /* Setup the local timer base */
94 twd_base = __io_address(U8500_TWD_BASE);
96 /* Setup the MTU base */
98 mtu_base = __io_address(U8500_MTU0_BASE_ED);
100 mtu_base = __io_address(U8500_MTU0_BASE_V1);
105 struct sys_timer u8500_timer = {
106 .init = u8500_timer_init,