Something went wrong. Try again.
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Something went wrong. Try again.
1.7 kB · 63 lines
C
at master
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364/* 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;};