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e292ccde HC |
1 | #ifndef _ASM_HPET_H |
2 | #define _ASM_HPET_H | |
3 | ||
4 | #ifdef CONFIG_RS780_HPET | |
5 | ||
6 | #define HPET_MMAP_SIZE 1024 | |
7 | ||
8 | #define HPET_ID 0x000 | |
9 | #define HPET_PERIOD 0x004 | |
10 | #define HPET_CFG 0x010 | |
11 | #define HPET_STATUS 0x020 | |
12 | #define HPET_COUNTER 0x0f0 | |
13 | ||
14 | #define HPET_Tn_CFG(n) (0x100 + 0x20 * n) | |
15 | #define HPET_Tn_CMP(n) (0x108 + 0x20 * n) | |
16 | #define HPET_Tn_ROUTE(n) (0x110 + 0x20 * n) | |
17 | ||
18 | #define HPET_T0_IRS 0x001 | |
19 | #define HPET_T1_IRS 0x002 | |
20 | #define HPET_T3_IRS 0x004 | |
21 | ||
22 | #define HPET_T0_CFG 0x100 | |
23 | #define HPET_T0_CMP 0x108 | |
24 | #define HPET_T0_ROUTE 0x110 | |
25 | #define HPET_T1_CFG 0x120 | |
26 | #define HPET_T1_CMP 0x128 | |
27 | #define HPET_T1_ROUTE 0x130 | |
28 | #define HPET_T2_CFG 0x140 | |
29 | #define HPET_T2_CMP 0x148 | |
30 | #define HPET_T2_ROUTE 0x150 | |
31 | ||
32 | #define HPET_ID_REV 0x000000ff | |
33 | #define HPET_ID_NUMBER 0x00001f00 | |
34 | #define HPET_ID_64BIT 0x00002000 | |
35 | #define HPET_ID_LEGSUP 0x00008000 | |
36 | #define HPET_ID_VENDOR 0xffff0000 | |
37 | #define HPET_ID_NUMBER_SHIFT 8 | |
38 | #define HPET_ID_VENDOR_SHIFT 16 | |
39 | ||
40 | #define HPET_CFG_ENABLE 0x001 | |
41 | #define HPET_CFG_LEGACY 0x002 | |
42 | #define HPET_LEGACY_8254 2 | |
43 | #define HPET_LEGACY_RTC 8 | |
44 | ||
45 | #define HPET_TN_LEVEL 0x0002 | |
46 | #define HPET_TN_ENABLE 0x0004 | |
47 | #define HPET_TN_PERIODIC 0x0008 | |
48 | #define HPET_TN_PERIODIC_CAP 0x0010 | |
49 | #define HPET_TN_64BIT_CAP 0x0020 | |
50 | #define HPET_TN_SETVAL 0x0040 | |
51 | #define HPET_TN_32BIT 0x0100 | |
52 | #define HPET_TN_ROUTE 0x3e00 | |
53 | #define HPET_TN_FSB 0x4000 | |
54 | #define HPET_TN_FSB_CAP 0x8000 | |
55 | #define HPET_TN_ROUTE_SHIFT 9 | |
56 | ||
57 | /* Max HPET Period is 10^8 femto sec as in HPET spec */ | |
58 | #define HPET_MAX_PERIOD 100000000UL | |
59 | /* | |
60 | * Min HPET period is 10^5 femto sec just for safety. If it is less than this, | |
61 | * then 32 bit HPET counter wrapsaround in less than 0.5 sec. | |
62 | */ | |
63 | #define HPET_MIN_PERIOD 100000UL | |
64 | ||
65 | #define HPET_ADDR 0x20000 | |
66 | #define HPET_MMIO_ADDR 0x90000e0000020000 | |
67 | #define HPET_FREQ 14318780 | |
68 | #define HPET_COMPARE_VAL ((HPET_FREQ + HZ / 2) / HZ) | |
69 | #define HPET_T0_IRQ 0 | |
70 | ||
71 | extern void __init setup_hpet_timer(void); | |
72 | #endif /* CONFIG_RS780_HPET */ | |
73 | #endif /* _ASM_HPET_H */ |