timer-sp.h (1722B)
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};