1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * ARM timer implementation, found in Integrator, Versatile and Realview
 4 * platforms.  Not all platforms support all registers and bits in these
 5 * registers, so we mark them with A for Integrator AP, C for Integrator
 6 * CP, V for Versatile and R for Realview.
 7 *
 8 * Integrator AP has 16-bit timers, Integrator CP, Versatile and Realview
 9 * can have 16-bit or 32-bit selectable via a bit in the control register.
10 *
11 * Every SP804 contains two identical timers.
12 */
13#define TIMER_1_BASE	0x00
14#define TIMER_2_BASE	0x20
15
16#define TIMER_LOAD	0x00			/* ACVR rw */
17#define TIMER_VALUE	0x04			/* ACVR ro */
18#define TIMER_CTRL	0x08			/* ACVR rw */
19#define TIMER_CTRL_ONESHOT	(1 << 0)	/*  CVR */
20#define TIMER_CTRL_32BIT	(1 << 1)	/*  CVR */
21#define TIMER_CTRL_DIV1		(0 << 2)	/* ACVR */
22#define TIMER_CTRL_DIV16	(1 << 2)	/* ACVR */
23#define TIMER_CTRL_DIV256	(2 << 2)	/* ACVR */
24#define TIMER_CTRL_IE		(1 << 5)	/*   VR */
25#define TIMER_CTRL_PERIODIC	(1 << 6)	/* ACVR */
26#define TIMER_CTRL_ENABLE	(1 << 7)	/* ACVR */
27
28#define TIMER_INTCLR	0x0c			/* ACVR wo */
29#define TIMER_RIS	0x10			/*  CVR ro */
30#define TIMER_MIS	0x14			/*  CVR ro */
31#define TIMER_BGLOAD	0x18			/*  CVR rw */