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Diffstat (limited to 'include/asm-v850/v850e_timer_d.h')
| -rw-r--r-- | include/asm-v850/v850e_timer_d.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/include/asm-v850/v850e_timer_d.h b/include/asm-v850/v850e_timer_d.h new file mode 100644 index 00000000000..417612c5b22 --- /dev/null +++ b/include/asm-v850/v850e_timer_d.h @@ -0,0 +1,62 @@ +/* + * include/asm-v850/v850e_timer_d.h -- `Timer D' component often used + * with the V850E cpu core + * + * Copyright (C) 2001,02,03 NEC Electronics Corporation + * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file COPYING in the main directory of this + * archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + */ + +#ifndef __V850_V850E_TIMER_D_H__ +#define __V850_V850E_TIMER_D_H__ + +#include <asm/types.h> +#include <asm/machdep.h> /* Pick up chip-specific defs. */ + + +/* Timer D (16-bit interval timers). */ + +/* Count registers for timer D. */ +#define V850E_TIMER_D_TMD_ADDR(n) (V850E_TIMER_D_TMD_BASE_ADDR + 0x10 * (n)) +#define V850E_TIMER_D_TMD(n) (*(volatile u16 *)V850E_TIMER_D_TMD_ADDR(n)) + +/* Count compare registers for timer D. */ +#define V850E_TIMER_D_CMD_ADDR(n) (V850E_TIMER_D_CMD_BASE_ADDR + 0x10 * (n)) +#define V850E_TIMER_D_CMD(n) (*(volatile u16 *)V850E_TIMER_D_CMD_ADDR(n)) + +/* Control registers for timer D. */ +#define V850E_TIMER_D_TMCD_ADDR(n) (V850E_TIMER_D_TMCD_BASE_ADDR + 0x10 * (n)) +#define V850E_TIMER_D_TMCD(n) (*(volatile u8 *)V850E_TIMER_D_TMCD_ADDR(n)) +/* Control bits for timer D. */ +#define V850E_TIMER_D_TMCD_CE 0x2 /* count enable */ +#define V850E_TIMER_D_TMCD_CAE 0x1 /* clock action enable */ +/* Clock divider setting (log2). */ +#define V850E_TIMER_D_TMCD_CS(divlog2) (((divlog2) - V850E_TIMER_D_TMCD_CS_MIN) << 4) +/* Minimum clock divider setting (log2). */ +#ifndef V850E_TIMER_D_TMCD_CS_MIN /* Can be overridden by mach-specific hdrs */ +#define V850E_TIMER_D_TMCD_CS_MIN 2 /* Default is correct for the v850e/ma1 */ +#endif +/* Maximum clock divider setting (log2). */ +#define V850E_TIMER_D_TMCD_CS_MAX (V850E_TIMER_D_TMCD_CS_MIN + 7) + +/* Return the clock-divider (log2) of timer D unit N. */ +#define V850E_TIMER_D_DIVLOG2(n) \ + (((V850E_TIMER_D_TMCD(n) >> 4) & 0x7) + V850E_TIMER_D_TMCD_CS_MIN) + + +#ifndef __ASSEMBLY__ + +/* Start interval timer TIMER (0-3). The timer will issue the + corresponding INTCMD interrupt RATE times per second. This function + does not enable the interrupt. */ +extern void v850e_timer_d_configure (unsigned timer, unsigned rate); + +#endif /* !__ASSEMBLY__ */ + + +#endif /* __V850_V850E_TIMER_D_H__ */ |