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52f69f81 VZ |
1 | /* |
2 | * Copyright (C) 2011 by Vladimir Zapolskiy <vz@mleia.com> | |
3 | * | |
1a459660 | 4 | * SPDX-License-Identifier: GPL-2.0+ |
52f69f81 VZ |
5 | */ |
6 | ||
7 | #ifndef _LPC32XX_TIMER_H | |
8 | #define _LPC32XX_TIMER_H | |
9 | ||
10 | #include <asm/types.h> | |
11 | ||
12 | /* Timer/Counter Registers */ | |
13 | struct timer_regs { | |
14 | u32 ir; /* Interrupt Register */ | |
15 | u32 tcr; /* Timer Control Register */ | |
16 | u32 tc; /* Timer Counter */ | |
17 | u32 pr; /* Prescale Register */ | |
18 | u32 pc; /* Prescale Counter */ | |
19 | u32 mcr; /* Match Control Register */ | |
20 | u32 mr[4]; /* Match Registers */ | |
21 | u32 ccr; /* Capture Control Register */ | |
22 | u32 cr[4]; /* Capture Registers */ | |
23 | u32 emr; /* External Match Register */ | |
24 | u32 reserved[12]; | |
25 | u32 ctcr; /* Count Control Register */ | |
26 | }; | |
27 | ||
28 | /* Timer/Counter Interrupt Register bits */ | |
29 | #define TIMER_IR_CR(n) (1 << ((n) + 4)) | |
30 | #define TIMER_IR_MR(n) (1 << (n)) | |
31 | ||
32 | /* Timer/Counter Timer Control Register bits */ | |
33 | #define TIMER_TCR_COUNTER_RESET (1 << 1) | |
34 | #define TIMER_TCR_COUNTER_ENABLE (1 << 0) | |
35 | #define TIMER_TCR_COUNTER_DISABLE (0 << 0) | |
36 | ||
37 | /* Timer/Counter Match Control Register bits */ | |
38 | #define TIMER_MCR_STOP(n) (1 << (3 * (n) + 2)) | |
39 | #define TIMER_MCR_RESET(n) (1 << (3 * (n) + 1)) | |
40 | #define TIMER_MCR_INTERRUPT(n) (1 << (3 * (n))) | |
41 | ||
42 | /* Timer/Counter Capture Control Register bits */ | |
43 | #define TIMER_CCR_INTERRUPT(n) (1 << (3 * (n) + 2)) | |
44 | #define TIMER_CCR_FALLING_EDGE(n) (1 << (3 * (n) + 1)) | |
45 | #define TIMER_CCR_RISING_EDGE(n) (1 << (3 * (n))) | |
46 | ||
47 | /* Timer/Counter External Match Register bits */ | |
48 | #define TIMER_EMR_EMC_TOGGLE(n) (0x3 << (2 * (n) + 4)) | |
49 | #define TIMER_EMR_EMC_SET(n) (0x2 << (2 * (n) + 4)) | |
50 | #define TIMER_EMR_EMC_CLEAR(n) (0x1 << (2 * (n) + 4)) | |
51 | #define TIMER_EMR_EMC_NOTHING(n) (0x0 << (2 * (n) + 4)) | |
52 | #define TIMER_EMR_EM(n) (1 << (n)) | |
53 | ||
54 | /* Timer/Counter Count Control Register bits */ | |
55 | #define TIMER_CTCR_INPUT(n) ((n) << 2) | |
56 | #define TIMER_CTCR_MODE_COUNTER_BOTH (0x3 << 0) | |
57 | #define TIMER_CTCR_MODE_COUNTER_FALLING (0x2 << 0) | |
58 | #define TIMER_CTCR_MODE_COUNTER_RISING (0x1 << 0) | |
59 | #define TIMER_CTCR_MODE_TIMER (0x0 << 0) | |
60 | ||
61 | #endif /* _LPC32XX_TIMER_H */ |