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1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * ARM timer implementation, found in Integrator, Versatile and Realview4 * platforms. Not all platforms support all registers and bits in these5 * registers, so we mark them with A for Integrator AP, C for Integrator6 * CP, V for Versatile and R for Realview.7 *8 * Integrator AP has 16-bit timers, Integrator CP, Versatile and Realview9 * 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 214#define TIMER_1_BASE 0x0015#define TIMER_2_BASE 0x2016 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};64