/* SPDX-License-Identifier: GPL-2.0 */
/*
 * ARM timer implementation, found in Integrator, Versatile and Realview
 * platforms.  Not all platforms support all registers and bits in these
 * registers, so we mark them with A for Integrator AP, C for Integrator
 * CP, V for Versatile and R for Realview.
 *
 * Integrator AP has 16-bit timers, Integrator CP, Versatile and Realview
 * can have 16-bit or 32-bit selectable via a bit in the control register.
 *
 * Every SP804 contains two identical timers.
 */
#define NR_TIMERS       2
#define TIMER_1_BASE    0x00
#define TIMER_2_BASE    0x20

#define TIMER_LOAD      0x00                    /* ACVR rw */
#define TIMER_VALUE     0x04                    /* ACVR ro */
#define TIMER_CTRL      0x08                    /* ACVR rw */
#define TIMER_CTRL_ONESHOT      (1 << 0)        /*  CVR */
#define TIMER_CTRL_32BIT        (1 << 1)        /*  CVR */
#define TIMER_CTRL_DIV1         (0 << 2)        /* ACVR */
#define TIMER_CTRL_DIV16        (1 << 2)        /* ACVR */
#define TIMER_CTRL_DIV256       (2 << 2)        /* ACVR */
#define TIMER_CTRL_IE           (1 << 5)        /*   VR */
#define TIMER_CTRL_PERIODIC     (1 << 6)        /* ACVR */
#define TIMER_CTRL_ENABLE       (1 << 7)        /* ACVR */

#define TIMER_INTCLR    0x0c                    /* ACVR wo */
#define TIMER_RIS       0x10                    /*  CVR ro */
#define TIMER_MIS       0x14                    /*  CVR ro */
#define TIMER_BGLOAD    0x18                    /*  CVR rw */

struct sp804_timer {
        int load;
        int load_h;
        int value;
        int value_h;
        int ctrl;
        int intclr;
        int ris;
        int mis;
        int bgload;
        int bgload_h;
        int timer_base[NR_TIMERS];
        int width;
};

struct sp804_clkevt {
        void __iomem *base;
        void __iomem *load;
        void __iomem *load_h;
        void __iomem *value;
        void __iomem *value_h;
        void __iomem *ctrl;
        void __iomem *intclr;
        void __iomem *ris;
        void __iomem *mis;
        void __iomem *bgload;
        void __iomem *bgload_h;
        unsigned long reload;
        int width;
};