projects/linux·blob assoc-array-fixes · refs

63 lines · 1.7 KiB

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 NR_TIMERS 2
14#define TIMER_1_BASE 0x00
15#define TIMER_2_BASE 0x20
16
17#define TIMER_LOAD 0x00 /* ACVR rw */
18#define TIMER_VALUE 0x04 /* ACVR ro */
19#define TIMER_CTRL 0x08 /* ACVR rw */
20#define TIMER_CTRL_ONESHOT (1 << 0) /* CVR */
21#define TIMER_CTRL_32BIT (1 << 1) /* CVR */
22#define TIMER_CTRL_DIV1 (0 << 2) /* ACVR */
23#define TIMER_CTRL_DIV16 (1 << 2) /* ACVR */
24#define TIMER_CTRL_DIV256 (2 << 2) /* ACVR */
25#define TIMER_CTRL_IE (1 << 5) /* VR */
26#define TIMER_CTRL_PERIODIC (1 << 6) /* ACVR */
27#define TIMER_CTRL_ENABLE (1 << 7) /* ACVR */
28
29#define TIMER_INTCLR 0x0c /* ACVR wo */
30#define TIMER_RIS 0x10 /* CVR ro */
31#define TIMER_MIS 0x14 /* CVR ro */
32#define TIMER_BGLOAD 0x18 /* CVR rw */
33
34struct sp804_timer {
35 int load;
36 int load_h;
37 int value;
38 int value_h;
39 int ctrl;
40 int intclr;
41 int ris;
42 int mis;
43 int bgload;
44 int bgload_h;
45 int timer_base[NR_TIMERS];
46 int width;
47};
48
49struct sp804_clkevt {
50 void __iomem *base;
51 void __iomem *load;
52 void __iomem *load_h;
53 void __iomem *value;
54 void __iomem *value_h;
55 void __iomem *ctrl;
56 void __iomem *intclr;
57 void __iomem *ris;
58 void __iomem *mis;
59 void __iomem *bgload;
60 void __iomem *bgload_h;
61 unsigned long reload;
62 int width;
63};