This is needed for tegra124 also, so make it common and add a header file
for tegra124.
Signed-off-by: Simon Glass <s...@chromium.org>
---
arch/arm/cpu/armv7/tegra-common/Makefile | 1 +
arch/arm/cpu/armv7/{tegra20 => tegra-common}/pwm.c | 0
arch/arm/cpu/armv7/tegra20/Makefile | 1 -
arch/arm/include/asm/arch-tegra/pwm.h | 60 ++++++++++++++++++++++
arch/arm/include/asm/arch-tegra124/pwm.h | 14 +++++
arch/arm/include/asm/arch-tegra20/pwm.h | 54 ++-----------------
6 files changed, 79 insertions(+), 51 deletions(-)
rename arch/arm/cpu/armv7/{tegra20 => tegra-common}/pwm.c (100%)
create mode 100644 arch/arm/include/asm/arch-tegra/pwm.h
create mode 100644 arch/arm/include/asm/arch-tegra124/pwm.h
diff --git a/arch/arm/cpu/armv7/tegra-common/Makefile
b/arch/arm/cpu/armv7/tegra-common/Makefile
index 463c260..91feb81 100644
--- a/arch/arm/cpu/armv7/tegra-common/Makefile
+++ b/arch/arm/cpu/armv7/tegra-common/Makefile
@@ -8,3 +8,4 @@
#
obj-$(CONFIG_CMD_ENTERRCM) += cmd_enterrcm.o
+obj-$(CONFIG_PWM_TEGRA) += pwm.o
diff --git a/arch/arm/cpu/armv7/tegra20/pwm.c
b/arch/arm/cpu/armv7/tegra-common/pwm.c
similarity index 100%
rename from arch/arm/cpu/armv7/tegra20/pwm.c
rename to arch/arm/cpu/armv7/tegra-common/pwm.c
diff --git a/arch/arm/cpu/armv7/tegra20/Makefile
b/arch/arm/cpu/armv7/tegra20/Makefile
index 9b4295c..56e54d0 100644
--- a/arch/arm/cpu/armv7/tegra20/Makefile
+++ b/arch/arm/cpu/armv7/tegra20/Makefile
@@ -7,5 +7,4 @@
# SPDX-License-Identifier: GPL-2.0+
#
-obj-$(CONFIG_PWM_TEGRA) += pwm.o
obj-$(CONFIG_VIDEO_TEGRA) += display.o
diff --git a/arch/arm/include/asm/arch-tegra/pwm.h
b/arch/arm/include/asm/arch-tegra/pwm.h
new file mode 100644
index 0000000..8e7397d
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra/pwm.h
@@ -0,0 +1,60 @@
+/*
+ * Tegra pulse width frequency modulator definitions
+ *
+ * Copyright (c) 2011 The Chromium OS Authors.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __ASM_ARCH_TEGRA_PWM_H
+#define __ASM_ARCH_TEGRA_PWM_H
+
+/* This is a single PWM channel */
+struct pwm_ctlr {
+ uint control; /* Control register */
+ uint reserved[3]; /* Space space */
+};
+
+#define PWM_NUM_CHANNELS 4
+
+/* PWM_CONTROLLER_PWM_CSR_0/1/2/3_0 */
+#define PWM_ENABLE_SHIFT 31
+#define PWM_ENABLE_MASK (0x1 << PWM_ENABLE_SHIFT)
+
+#define PWM_WIDTH_SHIFT 16
+#define PWM_WIDTH_MASK (0x7FFF << PWM_WIDTH_SHIFT)
+
+#define PWM_DIVIDER_SHIFT 0
+#define PWM_DIVIDER_MASK (0x1FFF << PWM_DIVIDER_SHIFT)
+
+/**
+ * Program the PWM with the given parameters.
+ *
+ * @param channel PWM channel to update
+ * @param rate Clock rate to use for PWM
+ * @param pulse_width high pulse width: 0=always low, 1=1/256 pulse high,
+ * n = n/256 pulse high
+ * @param freq_divider frequency divider value (1 to use rate as is)
+ */
+void pwm_enable(unsigned channel, int rate, int pulse_width, int freq_divider);
+
+/**
+ * Request a pwm channel as referenced by a device tree node.
+ *
+ * This channel can then be passed to pwm_enable().
+ *
+ * @param blob Device tree blob
+ * @param node Node containing reference to pwm
+ * @param prop_name Property name of pwm reference
+ * @return channel number, if ok, else -1
+ */
+int pwm_request(const void *blob, int node, const char *prop_name);
+
+/**
+ * Set up the pwm controller, by looking it up in the fdt.
+ *
+ * @return 0 if ok, -1 if the device tree node was not found or invalid.
+ */
+int pwm_init(const void *blob);
+
+#endif /* __ASM_ARCH_TEGRA_PWM_H */
diff --git a/arch/arm/include/asm/arch-tegra124/pwm.h
b/arch/arm/include/asm/arch-tegra124/pwm.h
new file mode 100644
index 0000000..3d2c432
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra124/pwm.h
@@ -0,0 +1,14 @@
+/*
+ * Tegra pulse width frequency modulator definitions
+ *
+ * Copyright (c) 2011 The Chromium OS Authors.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __ASM_ARCH_TEGRA124_PWM_H
+#define __ASM_ARCH_TEGRA124_PWM_H
+
+#include <asm/arch-tegra/pwm.h>
+
+#endif /* __ASM_ARCH_TEGRA124_PWM_H */
diff --git a/arch/arm/include/asm/arch-tegra20/pwm.h
b/arch/arm/include/asm/arch-tegra20/pwm.h
index 8e7397d..2207d9c 100644
--- a/arch/arm/include/asm/arch-tegra20/pwm.h
+++ b/arch/arm/include/asm/arch-tegra20/pwm.h
@@ -6,55 +6,9 @@
* SPDX-License-Identifier: GPL-2.0+
*/
-#ifndef __ASM_ARCH_TEGRA_PWM_H
-#define __ASM_ARCH_TEGRA_PWM_H
+#ifndef __ASM_ARCH_TEGRA20_PWM_H
+#define __ASM_ARCH_TEGRA20_PWM_H
-/* This is a single PWM channel */
-struct pwm_ctlr {
- uint control; /* Control register */
- uint reserved[3]; /* Space space */
-};
+#include <asm/arch-tegra/pwm.h>
-#define PWM_NUM_CHANNELS 4
-
-/* PWM_CONTROLLER_PWM_CSR_0/1/2/3_0 */
-#define PWM_ENABLE_SHIFT 31
-#define PWM_ENABLE_MASK (0x1 << PWM_ENABLE_SHIFT)
-
-#define PWM_WIDTH_SHIFT 16
-#define PWM_WIDTH_MASK (0x7FFF << PWM_WIDTH_SHIFT)
-
-#define PWM_DIVIDER_SHIFT 0
-#define PWM_DIVIDER_MASK (0x1FFF << PWM_DIVIDER_SHIFT)
-
-/**
- * Program the PWM with the given parameters.
- *
- * @param channel PWM channel to update
- * @param rate Clock rate to use for PWM
- * @param pulse_width high pulse width: 0=always low, 1=1/256 pulse high,
- * n = n/256 pulse high
- * @param freq_divider frequency divider value (1 to use rate as is)
- */
-void pwm_enable(unsigned channel, int rate, int pulse_width, int freq_divider);
-
-/**
- * Request a pwm channel as referenced by a device tree node.
- *
- * This channel can then be passed to pwm_enable().
- *
- * @param blob Device tree blob
- * @param node Node containing reference to pwm
- * @param prop_name Property name of pwm reference
- * @return channel number, if ok, else -1
- */
-int pwm_request(const void *blob, int node, const char *prop_name);
-
-/**
- * Set up the pwm controller, by looking it up in the fdt.
- *
- * @return 0 if ok, -1 if the device tree node was not found or invalid.
- */
-int pwm_init(const void *blob);
-
-#endif /* __ASM_ARCH_TEGRA_PWM_H */
+#endif /* __ASM_ARCH_TEGRA20_PWM_H */
--
2.2.0.rc0.207.ga3a616c
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