/* 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 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 */