projects / mirror_ubuntu-zesty-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| aa44ef4d SK |
1 | /* |
| 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> | |
| cc2c1334 | 17 | #include <linux/io.h> |
| aa44ef4d | 18 | |
| cc2c1334 | 19 | #include <asm/localtimer.h> |
| aa44ef4d SK |
20 | #include <asm/hardware/gic.h> |
| 21 | #include <asm/mach/map.h> | |
| cc2c1334 | 22 | #include <plat/mtu.h> |
| aa44ef4d | 23 | #include <mach/hardware.h> |
| cc2c1334 | 24 | #include <mach/setup.h> |
| aa44ef4d SK |
25 | |
| 26 | /* add any platform devices here - TODO */ | |
| 27 | static 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 */ | |
| 39 | static struct map_desc u8500_io_desc[] __initdata = { | |
| 59778fb6 | 40 | __IO_DEV_DESC(U8500_UART2_BASE, SZ_4K), |
| aa44ef4d SK |
41 | __IO_DEV_DESC(U8500_GIC_CPU_BASE, SZ_4K), |
| 42 | __IO_DEV_DESC(U8500_GIC_DIST_BASE, SZ_4K), | |
| aa44ef4d SK |
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 | }; | |
| 47 | ||
| 75a36ee0 RV |
48 | static struct map_desc u8500ed_io_desc[] __initdata = { |
| 49 | __IO_DEV_DESC(U8500_MTU0_BASE_ED, SZ_4K), | |
| 50 | }; | |
| 51 | ||
| 52 | static struct map_desc u8500v1_io_desc[] __initdata = { | |
| 53 | __IO_DEV_DESC(U8500_MTU0_BASE_V1, SZ_4K), | |
| 54 | }; | |
| 55 | ||
| aa44ef4d SK |
56 | void __init u8500_map_io(void) |
| 57 | { | |
| 58 | iotable_init(u8500_io_desc, ARRAY_SIZE(u8500_io_desc)); | |
| 75a36ee0 RV |
59 | |
| 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)); | |
| aa44ef4d SK |
64 | } |
| 65 | ||
| 66 | void __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 | */ | |
| 75 | void __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 | } | |
| cc2c1334 RV |
82 | |
| 83 | static 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 */ | |
| 75a36ee0 RV |
90 | if (cpu_is_u8500ed()) |
| 91 | mtu_base = __io_address(U8500_MTU0_BASE_ED); | |
| 92 | else | |
| 93 | mtu_base = __io_address(U8500_MTU0_BASE_V1); | |
| cc2c1334 RV |
94 | |
| 95 | nmdk_timer_init(); | |
| 96 | } | |
| 97 | ||
| 98 | struct sys_timer u8500_timer = { | |
| 99 | .init = u8500_timer_init, | |
| 100 | }; |