diff options
Diffstat (limited to 'arch/arm/mach-ux500/cpu.c')
-rw-r--r-- | arch/arm/mach-ux500/cpu.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c new file mode 100644 index 000000000000..d81ad023963c --- /dev/null +++ b/arch/arm/mach-ux500/cpu.c | |||
@@ -0,0 +1,99 @@ | |||
1 | /* | ||
2 | * Copyright (C) ST-Ericsson SA 2010 | ||
3 | * | ||
4 | * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson | ||
5 | * License terms: GNU General Public License (GPL) version 2 | ||
6 | */ | ||
7 | |||
8 | #include <linux/platform_device.h> | ||
9 | #include <linux/amba/bus.h> | ||
10 | #include <linux/io.h> | ||
11 | #include <linux/clk.h> | ||
12 | |||
13 | #include <asm/hardware/cache-l2x0.h> | ||
14 | #include <asm/hardware/gic.h> | ||
15 | #include <asm/mach/map.h> | ||
16 | #include <asm/localtimer.h> | ||
17 | |||
18 | #include <plat/mtu.h> | ||
19 | #include <mach/hardware.h> | ||
20 | #include <mach/setup.h> | ||
21 | #include <mach/devices.h> | ||
22 | |||
23 | #include "clock.h" | ||
24 | |||
25 | static struct map_desc ux500_io_desc[] __initdata = { | ||
26 | __IO_DEV_DESC(UX500_UART0_BASE, SZ_4K), | ||
27 | __IO_DEV_DESC(UX500_UART2_BASE, SZ_4K), | ||
28 | |||
29 | __IO_DEV_DESC(UX500_GIC_CPU_BASE, SZ_4K), | ||
30 | __IO_DEV_DESC(UX500_GIC_DIST_BASE, SZ_4K), | ||
31 | __IO_DEV_DESC(UX500_L2CC_BASE, SZ_4K), | ||
32 | __IO_DEV_DESC(UX500_TWD_BASE, SZ_4K), | ||
33 | __IO_DEV_DESC(UX500_SCU_BASE, SZ_4K), | ||
34 | |||
35 | __IO_DEV_DESC(UX500_CLKRST1_BASE, SZ_4K), | ||
36 | __IO_DEV_DESC(UX500_CLKRST2_BASE, SZ_4K), | ||
37 | __IO_DEV_DESC(UX500_CLKRST3_BASE, SZ_4K), | ||
38 | __IO_DEV_DESC(UX500_CLKRST5_BASE, SZ_4K), | ||
39 | __IO_DEV_DESC(UX500_CLKRST6_BASE, SZ_4K), | ||
40 | |||
41 | __IO_DEV_DESC(UX500_MTU0_BASE, SZ_4K), | ||
42 | __IO_DEV_DESC(UX500_MTU1_BASE, SZ_4K), | ||
43 | |||
44 | __IO_DEV_DESC(UX500_BACKUPRAM0_BASE, SZ_8K), | ||
45 | }; | ||
46 | |||
47 | static struct amba_device *ux500_amba_devs[] __initdata = { | ||
48 | &ux500_pl031_device, | ||
49 | }; | ||
50 | |||
51 | void __init ux500_map_io(void) | ||
52 | { | ||
53 | iotable_init(ux500_io_desc, ARRAY_SIZE(ux500_io_desc)); | ||
54 | } | ||
55 | |||
56 | void __init ux500_init_devices(void) | ||
57 | { | ||
58 | amba_add_devices(ux500_amba_devs, ARRAY_SIZE(ux500_amba_devs)); | ||
59 | } | ||
60 | |||
61 | void __init ux500_init_irq(void) | ||
62 | { | ||
63 | gic_dist_init(0, __io_address(UX500_GIC_DIST_BASE), 29); | ||
64 | gic_cpu_init(0, __io_address(UX500_GIC_CPU_BASE)); | ||
65 | } | ||
66 | |||
67 | #ifdef CONFIG_CACHE_L2X0 | ||
68 | static int ux500_l2x0_init(void) | ||
69 | { | ||
70 | void __iomem *l2x0_base; | ||
71 | |||
72 | l2x0_base = __io_address(UX500_L2CC_BASE); | ||
73 | |||
74 | /* 64KB way size, 8 way associativity, force WA */ | ||
75 | l2x0_init(l2x0_base, 0x3e060000, 0xc0000fff); | ||
76 | |||
77 | return 0; | ||
78 | } | ||
79 | early_initcall(ux500_l2x0_init); | ||
80 | #endif | ||
81 | |||
82 | static void __init ux500_timer_init(void) | ||
83 | { | ||
84 | #ifdef CONFIG_LOCAL_TIMERS | ||
85 | /* Setup the local timer base */ | ||
86 | twd_base = __io_address(UX500_TWD_BASE); | ||
87 | #endif | ||
88 | /* Setup the MTU base */ | ||
89 | if (cpu_is_u8500ed()) | ||
90 | mtu_base = __io_address(U8500_MTU0_BASE_ED); | ||
91 | else | ||
92 | mtu_base = __io_address(UX500_MTU0_BASE); | ||
93 | |||
94 | nmdk_timer_init(); | ||
95 | } | ||
96 | |||
97 | struct sys_timer ux500_timer = { | ||
98 | .init = ux500_timer_init, | ||
99 | }; | ||