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 */
32