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   1 /*
   2  * Tegra pulse width frequency modulator definitions
   3  *
   4  * Copyright (c) 2011 The Chromium OS Authors.
   5  *
   6  * SPDX-License-Identifier:     GPL-2.0+
   7  */
   8
   9 #ifndef __ASM_ARCH_TEGRA_PWM_H
  10 #define __ASM_ARCH_TEGRA_PWM_H
  11
  12 /* This is a single PWM channel */
  13 struct pwm_ctlr {
  14         uint control;           /* Control register */
  15         uint reserved[3];       /* Space space */
  16 };
  17
  18 #define PWM_NUM_CHANNELS        4
  19
  20 /* PWM_CONTROLLER_PWM_CSR_0/1/2/3_0 */
  21 #define PWM_ENABLE_SHIFT        31
  22 #define PWM_ENABLE_MASK (0x1 << PWM_ENABLE_SHIFT)
  23
  24 #define PWM_WIDTH_SHIFT 16
  25 #define PWM_WIDTH_MASK          (0x7FFF << PWM_WIDTH_SHIFT)
  26
  27 #define PWM_DIVIDER_SHIFT       0
  28 #define PWM_DIVIDER_MASK        (0x1FFF << PWM_DIVIDER_SHIFT)
  29
  30 #endif  /* __ASM_ARCH_TEGRA_PWM_H */