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authorAndrew Chew <achew@nvidia.com>2014-02-10 16:36:53 -0800
committerMarc Jones <marc.jones@se-eng.com>2014-11-12 20:16:11 +0100
commit301f84c6d7e93bcebe0e8c8d447308aa0044a615 (patch)
treedebde38d9492a3498fb7e16c75e89e5fed2b364f /src
parentc38c6f7211cb425afd97956b8e600366df608331 (diff)
downloadcoreboot-301f84c6d7e93bcebe0e8c8d447308aa0044a615.tar.xz
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>
Diffstat (limited to 'src')
-rw-r--r--src/soc/nvidia/tegra/pwm.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/src/soc/nvidia/tegra/pwm.h b/src/soc/nvidia/tegra/pwm.h
new file mode 100644
index 0000000000..eea5b07b91
--- /dev/null
+++ b/src/soc/nvidia/tegra/pwm.h
@@ -0,0 +1,43 @@
+/*
+ * 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 */