1 /* 2 * Copyright (C) 2011 by Vladimir Zapolskiy <vz@mleia.com> 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 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 */ 62