u-boot/arch/microblaze/include/asm/microblaze_timer.h

/*
 * (C) Copyright 2007 Michal Simek
 *
 * Michal  SIMEK <monstr@monstr.cz>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#define TIMER_ENABLE_ALL    0x400 /* ENALL */
#define TIMER_PWM           0x200 /* PWMA0 */
#define TIMER_INTERRUPT     0x100 /* T0INT */
#define TIMER_ENABLE        0x080 /* ENT0 */
#define TIMER_ENABLE_INTR   0x040 /* ENIT0 */
#define TIMER_RESET         0x020 /* LOAD0 */
#define TIMER_RELOAD        0x010 /* ARHT0 */
#define TIMER_EXT_CAPTURE   0x008 /* CAPT0 */
#define TIMER_EXT_COMPARE   0x004 /* GENT0 */
#define TIMER_DOWN_COUNT    0x002 /* UDT0 */
#define TIMER_CAPTURE_MODE  0x001 /* MDT0 */

typedef volatile struct microblaze_timer_t {
	int control; /* control/statuc register TCSR */
	int loadreg; /* load register TLR */
	int counter; /* timer/counter register */
} microblaze_timer_t;

int timer_init(void);