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tegra124: Add pwm_controller registers 

Add some defines and structs that describe what the PWM registers look like.

BUG=none
TEST=emerge-nyan chromeos-coreboot-nyan

Original-Change-Id: Ie10589e4cbf5292e543d205ac8a1c6b09a0f76d0
Original-Signed-off-by: Andrew Chew <achew@nvidia.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/185771
Original-Reviewed-by: Andrew Bresticker <abrestic@chromium.org>
(cherry picked from commit fbbd2a5e148c1142aee100dbcde17c865b06b2bd)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: If4dc40c1dcdf1723e05923e2fea42ccc47766699
Reviewed-on: http://review.coreboot.org/7401
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
This commit is contained in:
Andrew Chew 2014-02-10 16:36:53 -08:00 committed by Marc Jones
parent c38c6f7211
commit 301f84c6d7
1 changed files with 43 additions and 0 deletions
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43
src/soc/nvidia/tegra/pwm.h Normal file
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/*
* Copyright 2014 Google Inc.
* (C) Copyright 2010
* NVIDIA Corporation <www.nvidia.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __SOC_NVIDIA_TEGRA_PWM_H
#define __SOC_NVIDIA_TEGRA_PWM_H
#include <types.h>
/* Register definitions for the Tegra pwm controller */
#define NV_PWM_CSR_ENABLE_SHIFT 31
#define NV_PWM_CSR_PULSE_WIDTH_SHIFT 16
struct pwm_reg {
u32 csr;
u32 rsvd[3];
};
struct pwm_controller {
struct pwm_reg pwm[4];
};
#endif /* __SOC_NVIDIA_TEGRA_PWM_H */