tegra: Move the pwm into tegra-common

This is needed for tegra124 also, so make it common and add a header file
for tegra124.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

2 files changed, 0 insertions, 87 deletions

diff --git a/arch/arm/mach-tegra/tegra20/Makefile b/arch/arm/mach-tegra/tegra20/Makefile
index d48f9bb325..fc3fb4ae4c 100644
--- a/arch/arm/mach-tegra/tegra20/Makefile
+++ b/arch/arm/mach-tegra/tegra20/Makefile
@@ -7,7 +7,6 @@
 ifdef CONFIG_SPL_BUILD
 obj-y	+= cpu.o
 else
-obj-$(CONFIG_PWM_TEGRA) += pwm.o
 obj-$(CONFIG_VIDEO_TEGRA) += display.o
 endif
 
diff --git a/arch/arm/mach-tegra/tegra20/pwm.c b/arch/arm/mach-tegra/tegra20/pwm.c
deleted file mode 100644
index 5b886363f8..0000000000
--- a/arch/arm/mach-tegra/tegra20/pwm.c
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * Tegra2 pulse width frequency modulator definitions
- *
- * Copyright (c) 2011 The Chromium OS Authors.
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include <common.h>
-#include <fdtdec.h>
-#include <asm/io.h>
-#include <asm/arch/clock.h>
-#include <asm/arch/pwm.h>
-
-struct pwm_info {
-	struct pwm_ctlr *pwm;		/* Registers for our pwm controller */
-	int pwm_node;			/* PWM device tree node */
-} local;
-
-void pwm_enable(unsigned channel, int rate, int pulse_width, int freq_divider)
-{
-	u32 reg;
-
-	assert(channel < PWM_NUM_CHANNELS);
-
-	/* TODO: Can we use clock_adjust_periph_pll_div() here? */
-	clock_start_periph_pll(PERIPH_ID_PWM, CLOCK_ID_SFROM32KHZ, rate);
-
-	reg = PWM_ENABLE_MASK;
-	reg |= pulse_width << PWM_WIDTH_SHIFT;
-	reg |= freq_divider << PWM_DIVIDER_SHIFT;
-	writel(reg, &local.pwm[channel].control);
-	debug("%s: channel=%d, rate=%d\n", __func__, channel, rate);
-}
-
-int pwm_request(const void *blob, int node, const char *prop_name)
-{
-	int pwm_node;
-	u32 data[3];
-
-	if (fdtdec_get_int_array(blob, node, prop_name, data,
-			ARRAY_SIZE(data))) {
-		debug("%s: Cannot decode PWM property '%s'\n", __func__,
-		      prop_name);
-		return -1;
-	}
-
-	pwm_node = fdt_node_offset_by_phandle(blob, data[0]);
-	if (pwm_node != local.pwm_node) {
-		debug("%s: PWM property '%s' phandle %d not recognised"
-		      "- expecting %d\n", __func__, prop_name, data[0],
-		      local.pwm_node);
-		return -1;
-	}
-	if (data[1] >= PWM_NUM_CHANNELS) {
-		debug("%s: PWM property '%s': invalid channel %u\n", __func__,
-		      prop_name, data[1]);
-		return -1;
-	}
-
-	/*
-	 * TODO: We could maintain a list of requests, but it might not be
-	 * worth it for U-Boot.
-	 */
-	return data[1];
-}
-
-int pwm_init(const void *blob)
-{
-	local.pwm_node = fdtdec_next_compatible(blob, 0,
-						COMPAT_NVIDIA_TEGRA20_PWM);
-	if (local.pwm_node < 0) {
-		debug("%s: Cannot find device tree node\n", __func__);
-		return -1;
-	}
-
-	local.pwm = (struct pwm_ctlr *)fdtdec_get_addr(blob, local.pwm_node,
-						       "reg");
-	if (local.pwm == (struct pwm_ctlr *)FDT_ADDR_T_NONE) {
-		debug("%s: Cannot find pwm reg address\n", __func__);
-		return -1;
-	}
-	debug("Tegra PWM at %p, node %d\n", local.pwm, local.pwm_node);
-
-	return 0;
-}