From 95713978b0a2929b72933235bb07c0a793e71afa Mon Sep 17 00:00:00 2001
From: Emilio López <emilio@elopez.com.ar>
Date: Fri, 2 May 2014 17:57:16 +0200
Subject: clk: sunxi: Implement MMC phase control
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

HdG: add header exporting clk_sunxi_mmc_phase_control

Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
 include/linux/clk/sunxi.h | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 include/linux/clk/sunxi.h

(limited to 'include/linux/clk')

diff --git a/include/linux/clk/sunxi.h b/include/linux/clk/sunxi.h
new file mode 100644
index 000000000000..1ef5c899e458
--- /dev/null
+++ b/include/linux/clk/sunxi.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright 2013 - Hans de Goede <hdegoede@redhat.com>
+ *
+ * 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.
+ */
+
+#ifndef __LINUX_CLK_SUNXI_H_
+#define __LINUX_CLK_SUNXI_H_
+
+#include <linux/clk.h>
+
+void clk_sunxi_mmc_phase_control(struct clk_hw *hw, u8 sample, u8 output);
+
+#endif
-- 
cgit 


From 80eded6ce8bb8bade60955660c6957d6166c44c1 Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <boris.brezillon@free-electrons.com>
Date: Wed, 7 May 2014 18:02:15 +0200
Subject: clk: at91: add slow clks driver

AT91 slow clk is a clk multiplexer.

In some SoCs (sam9x5, sama5, sam9g45 families) this multiplexer can
choose among 2 sources: an internal RC oscillator circuit and an oscillator
using an external crystal.

In other Socs (sam9260 family) the multiplexer source is hardcoded with
the OSCSEL signal.

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
 drivers/clk/at91/Makefile    |   4 +-
 drivers/clk/at91/clk-slow.c  | 467 +++++++++++++++++++++++++++++++++++++++++++
 drivers/clk/at91/pmc.c       |   5 +
 drivers/clk/at91/pmc.h       |   3 +
 drivers/clk/at91/sckc.c      |  57 ++++++
 drivers/clk/at91/sckc.h      |  22 ++
 include/linux/clk/at91_pmc.h |   1 +
 7 files changed, 557 insertions(+), 2 deletions(-)
 create mode 100644 drivers/clk/at91/clk-slow.c
 create mode 100644 drivers/clk/at91/sckc.c
 create mode 100644 drivers/clk/at91/sckc.h

(limited to 'include/linux/clk')

diff --git a/drivers/clk/at91/Makefile b/drivers/clk/at91/Makefile
index 46c1d3d0d66b..4998aee59267 100644
--- a/drivers/clk/at91/Makefile
+++ b/drivers/clk/at91/Makefile
@@ -2,8 +2,8 @@
 # Makefile for at91 specific clk
 #
 
-obj-y += pmc.o
-obj-y += clk-main.o clk-pll.o clk-plldiv.o clk-master.o
+obj-y += pmc.o sckc.o
+obj-y += clk-slow.o clk-main.o clk-pll.o clk-plldiv.o clk-master.o
 obj-y += clk-system.o clk-peripheral.o clk-programmable.o
 
 obj-$(CONFIG_HAVE_AT91_UTMI)		+= clk-utmi.o
diff --git a/drivers/clk/at91/clk-slow.c b/drivers/clk/at91/clk-slow.c
new file mode 100644
index 000000000000..0300c46ee247
--- /dev/null
+++ b/drivers/clk/at91/clk-slow.c
@@ -0,0 +1,467 @@
+/*
+ * drivers/clk/at91/clk-slow.c
+ *
+ *  Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
+ *
+ * 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.
+ *
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/clk/at91_pmc.h>
+#include <linux/delay.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
+
+#include "pmc.h"
+#include "sckc.h"
+
+#define SLOW_CLOCK_FREQ		32768
+#define SLOWCK_SW_CYCLES	5
+#define SLOWCK_SW_TIME_USEC	((SLOWCK_SW_CYCLES * USEC_PER_SEC) / \
+				 SLOW_CLOCK_FREQ)
+
+#define	AT91_SCKC_CR			0x00
+#define		AT91_SCKC_RCEN		(1 << 0)
+#define		AT91_SCKC_OSC32EN	(1 << 1)
+#define		AT91_SCKC_OSC32BYP	(1 << 2)
+#define		AT91_SCKC_OSCSEL	(1 << 3)
+
+struct clk_slow_osc {
+	struct clk_hw hw;
+	void __iomem *sckcr;
+	unsigned long startup_usec;
+};
+
+#define to_clk_slow_osc(hw) container_of(hw, struct clk_slow_osc, hw)
+
+struct clk_slow_rc_osc {
+	struct clk_hw hw;
+	void __iomem *sckcr;
+	unsigned long frequency;
+	unsigned long accuracy;
+	unsigned long startup_usec;
+};
+
+#define to_clk_slow_rc_osc(hw) container_of(hw, struct clk_slow_rc_osc, hw)
+
+struct clk_sam9260_slow {
+	struct clk_hw hw;
+	struct at91_pmc *pmc;
+};
+
+#define to_clk_sam9260_slow(hw) container_of(hw, struct clk_sam9260_slow, hw)
+
+struct clk_sam9x5_slow {
+	struct clk_hw hw;
+	void __iomem *sckcr;
+	u8 parent;
+};
+
+#define to_clk_sam9x5_slow(hw) container_of(hw, struct clk_sam9x5_slow, hw)
+
+
+static int clk_slow_osc_prepare(struct clk_hw *hw)
+{
+	struct clk_slow_osc *osc = to_clk_slow_osc(hw);
+	void __iomem *sckcr = osc->sckcr;
+	u32 tmp = readl(sckcr);
+
+	if (tmp & AT91_SCKC_OSC32BYP)
+		return 0;
+
+	writel(tmp | AT91_SCKC_OSC32EN, sckcr);
+
+	usleep_range(osc->startup_usec, osc->startup_usec + 1);
+
+	return 0;
+}
+
+static void clk_slow_osc_unprepare(struct clk_hw *hw)
+{
+	struct clk_slow_osc *osc = to_clk_slow_osc(hw);
+	void __iomem *sckcr = osc->sckcr;
+	u32 tmp = readl(sckcr);
+
+	if (tmp & AT91_SCKC_OSC32BYP)
+		return;
+
+	writel(tmp & ~AT91_SCKC_OSC32EN, sckcr);
+}
+
+static int clk_slow_osc_is_prepared(struct clk_hw *hw)
+{
+	struct clk_slow_osc *osc = to_clk_slow_osc(hw);
+	void __iomem *sckcr = osc->sckcr;
+	u32 tmp = readl(sckcr);
+
+	if (tmp & AT91_SCKC_OSC32BYP)
+		return 1;
+
+	return !!(tmp & AT91_SCKC_OSC32EN);
+}
+
+static const struct clk_ops slow_osc_ops = {
+	.prepare = clk_slow_osc_prepare,
+	.unprepare = clk_slow_osc_unprepare,
+	.is_prepared = clk_slow_osc_is_prepared,
+};
+
+static struct clk * __init
+at91_clk_register_slow_osc(void __iomem *sckcr,
+			   const char *name,
+			   const char *parent_name,
+			   unsigned long startup,
+			   bool bypass)
+{
+	struct clk_slow_osc *osc;
+	struct clk *clk = NULL;
+	struct clk_init_data init;
+
+	if (!sckcr || !name || !parent_name)
+		return ERR_PTR(-EINVAL);
+
+	osc = kzalloc(sizeof(*osc), GFP_KERNEL);
+	if (!osc)
+		return ERR_PTR(-ENOMEM);
+
+	init.name = name;
+	init.ops = &slow_osc_ops;
+	init.parent_names = &parent_name;
+	init.num_parents = 1;
+	init.flags = CLK_IGNORE_UNUSED;
+
+	osc->hw.init = &init;
+	osc->sckcr = sckcr;
+	osc->startup_usec = startup;
+
+	if (bypass)
+		writel((readl(sckcr) & ~AT91_SCKC_OSC32EN) | AT91_SCKC_OSC32BYP,
+		       sckcr);
+
+	clk = clk_register(NULL, &osc->hw);
+	if (IS_ERR(clk))
+		kfree(osc);
+
+	return clk;
+}
+
+void __init of_at91sam9x5_clk_slow_osc_setup(struct device_node *np,
+					     void __iomem *sckcr)
+{
+	struct clk *clk;
+	const char *parent_name;
+	const char *name = np->name;
+	u32 startup;
+	bool bypass;
+
+	parent_name = of_clk_get_parent_name(np, 0);
+	of_property_read_string(np, "clock-output-names", &name);
+	of_property_read_u32(np, "atmel,startup-time-usec", &startup);
+	bypass = of_property_read_bool(np, "atmel,osc-bypass");
+
+	clk = at91_clk_register_slow_osc(sckcr, name, parent_name, startup,
+					 bypass);
+	if (IS_ERR(clk))
+		return;
+
+	of_clk_add_provider(np, of_clk_src_simple_get, clk);
+}
+
+static unsigned long clk_slow_rc_osc_recalc_rate(struct clk_hw *hw,
+						 unsigned long parent_rate)
+{
+	struct clk_slow_rc_osc *osc = to_clk_slow_rc_osc(hw);
+
+	return osc->frequency;
+}
+
+static unsigned long clk_slow_rc_osc_recalc_accuracy(struct clk_hw *hw,
+						     unsigned long parent_acc)
+{
+	struct clk_slow_rc_osc *osc = to_clk_slow_rc_osc(hw);
+
+	return osc->accuracy;
+}
+
+static int clk_slow_rc_osc_prepare(struct clk_hw *hw)
+{
+	struct clk_slow_rc_osc *osc = to_clk_slow_rc_osc(hw);
+	void __iomem *sckcr = osc->sckcr;
+
+	writel(readl(sckcr) | AT91_SCKC_RCEN, sckcr);
+
+	usleep_range(osc->startup_usec, osc->startup_usec + 1);
+
+	return 0;
+}
+
+static void clk_slow_rc_osc_unprepare(struct clk_hw *hw)
+{
+	struct clk_slow_rc_osc *osc = to_clk_slow_rc_osc(hw);
+	void __iomem *sckcr = osc->sckcr;
+
+	writel(readl(sckcr) & ~AT91_SCKC_RCEN, sckcr);
+}
+
+static int clk_slow_rc_osc_is_prepared(struct clk_hw *hw)
+{
+	struct clk_slow_rc_osc *osc = to_clk_slow_rc_osc(hw);
+
+	return !!(readl(osc->sckcr) & AT91_SCKC_RCEN);
+}
+
+static const struct clk_ops slow_rc_osc_ops = {
+	.prepare = clk_slow_rc_osc_prepare,
+	.unprepare = clk_slow_rc_osc_unprepare,
+	.is_prepared = clk_slow_rc_osc_is_prepared,
+	.recalc_rate = clk_slow_rc_osc_recalc_rate,
+	.recalc_accuracy = clk_slow_rc_osc_recalc_accuracy,
+};
+
+static struct clk * __init
+at91_clk_register_slow_rc_osc(void __iomem *sckcr,
+			      const char *name,
+			      unsigned long frequency,
+			      unsigned long accuracy,
+			      unsigned long startup)
+{
+	struct clk_slow_rc_osc *osc;
+	struct clk *clk = NULL;
+	struct clk_init_data init;
+
+	if (!sckcr || !name)
+		return ERR_PTR(-EINVAL);
+
+	osc = kzalloc(sizeof(*osc), GFP_KERNEL);
+	if (!osc)
+		return ERR_PTR(-ENOMEM);
+
+	init.name = name;
+	init.ops = &slow_rc_osc_ops;
+	init.parent_names = NULL;
+	init.num_parents = 0;
+	init.flags = CLK_IS_ROOT | CLK_IGNORE_UNUSED;
+
+	osc->hw.init = &init;
+	osc->sckcr = sckcr;
+	osc->frequency = frequency;
+	osc->accuracy = accuracy;
+	osc->startup_usec = startup;
+
+	clk = clk_register(NULL, &osc->hw);
+	if (IS_ERR(clk))
+		kfree(osc);
+
+	return clk;
+}
+
+void __init of_at91sam9x5_clk_slow_rc_osc_setup(struct device_node *np,
+						void __iomem *sckcr)
+{
+	struct clk *clk;
+	u32 frequency = 0;
+	u32 accuracy = 0;
+	u32 startup = 0;
+	const char *name = np->name;
+
+	of_property_read_string(np, "clock-output-names", &name);
+	of_property_read_u32(np, "clock-frequency", &frequency);
+	of_property_read_u32(np, "clock-accuracy", &accuracy);
+	of_property_read_u32(np, "atmel,startup-time-usec", &startup);
+
+	clk = at91_clk_register_slow_rc_osc(sckcr, name, frequency, accuracy,
+					    startup);
+	if (IS_ERR(clk))
+		return;
+
+	of_clk_add_provider(np, of_clk_src_simple_get, clk);
+}
+
+static int clk_sam9x5_slow_set_parent(struct clk_hw *hw, u8 index)
+{
+	struct clk_sam9x5_slow *slowck = to_clk_sam9x5_slow(hw);
+	void __iomem *sckcr = slowck->sckcr;
+	u32 tmp;
+
+	if (index > 1)
+		return -EINVAL;
+
+	tmp = readl(sckcr);
+
+	if ((!index && !(tmp & AT91_SCKC_OSCSEL)) ||
+	    (index && (tmp & AT91_SCKC_OSCSEL)))
+		return 0;
+
+	if (index)
+		tmp |= AT91_SCKC_OSCSEL;
+	else
+		tmp &= ~AT91_SCKC_OSCSEL;
+
+	writel(tmp, sckcr);
+
+	usleep_range(SLOWCK_SW_TIME_USEC, SLOWCK_SW_TIME_USEC + 1);
+
+	return 0;
+}
+
+static u8 clk_sam9x5_slow_get_parent(struct clk_hw *hw)
+{
+	struct clk_sam9x5_slow *slowck = to_clk_sam9x5_slow(hw);
+
+	return !!(readl(slowck->sckcr) & AT91_SCKC_OSCSEL);
+}
+
+static const struct clk_ops sam9x5_slow_ops = {
+	.set_parent = clk_sam9x5_slow_set_parent,
+	.get_parent = clk_sam9x5_slow_get_parent,
+};
+
+static struct clk * __init
+at91_clk_register_sam9x5_slow(void __iomem *sckcr,
+			      const char *name,
+			      const char **parent_names,
+			      int num_parents)
+{
+	struct clk_sam9x5_slow *slowck;
+	struct clk *clk = NULL;
+	struct clk_init_data init;
+
+	if (!sckcr || !name || !parent_names || !num_parents)
+		return ERR_PTR(-EINVAL);
+
+	slowck = kzalloc(sizeof(*slowck), GFP_KERNEL);
+	if (!slowck)
+		return ERR_PTR(-ENOMEM);
+
+	init.name = name;
+	init.ops = &sam9x5_slow_ops;
+	init.parent_names = parent_names;
+	init.num_parents = num_parents;
+	init.flags = 0;
+
+	slowck->hw.init = &init;
+	slowck->sckcr = sckcr;
+	slowck->parent = !!(readl(sckcr) & AT91_SCKC_OSCSEL);
+
+	clk = clk_register(NULL, &slowck->hw);
+	if (IS_ERR(clk))
+		kfree(slowck);
+
+	return clk;
+}
+
+void __init of_at91sam9x5_clk_slow_setup(struct device_node *np,
+					 void __iomem *sckcr)
+{
+	struct clk *clk;
+	const char *parent_names[2];
+	int num_parents;
+	const char *name = np->name;
+	int i;
+
+	num_parents = of_count_phandle_with_args(np, "clocks", "#clock-cells");
+	if (num_parents <= 0 || num_parents > 2)
+		return;
+
+	for (i = 0; i < num_parents; ++i) {
+		parent_names[i] = of_clk_get_parent_name(np, i);
+		if (!parent_names[i])
+			return;
+	}
+
+	of_property_read_string(np, "clock-output-names", &name);
+
+	clk = at91_clk_register_sam9x5_slow(sckcr, name, parent_names,
+					    num_parents);
+	if (IS_ERR(clk))
+		return;
+
+	of_clk_add_provider(np, of_clk_src_simple_get, clk);
+}
+
+static u8 clk_sam9260_slow_get_parent(struct clk_hw *hw)
+{
+	struct clk_sam9260_slow *slowck = to_clk_sam9260_slow(hw);
+
+	return !!(pmc_read(slowck->pmc, AT91_PMC_SR) & AT91_PMC_OSCSEL);
+}
+
+static const struct clk_ops sam9260_slow_ops = {
+	.get_parent = clk_sam9260_slow_get_parent,
+};
+
+static struct clk * __init
+at91_clk_register_sam9260_slow(struct at91_pmc *pmc,
+			       const char *name,
+			       const char **parent_names,
+			       int num_parents)
+{
+	struct clk_sam9260_slow *slowck;
+	struct clk *clk = NULL;
+	struct clk_init_data init;
+
+	if (!pmc || !name)
+		return ERR_PTR(-EINVAL);
+
+	if (!parent_names || !num_parents)
+		return ERR_PTR(-EINVAL);
+
+	slowck = kzalloc(sizeof(*slowck), GFP_KERNEL);
+	if (!slowck)
+		return ERR_PTR(-ENOMEM);
+
+	init.name = name;
+	init.ops = &sam9260_slow_ops;
+	init.parent_names = parent_names;
+	init.num_parents = num_parents;
+	init.flags = 0;
+
+	slowck->hw.init = &init;
+	slowck->pmc = pmc;
+
+	clk = clk_register(NULL, &slowck->hw);
+	if (IS_ERR(clk))
+		kfree(slowck);
+
+	return clk;
+}
+
+void __init of_at91sam9260_clk_slow_setup(struct device_node *np,
+					  struct at91_pmc *pmc)
+{
+	struct clk *clk;
+	const char *parent_names[2];
+	int num_parents;
+	const char *name = np->name;
+	int i;
+
+	num_parents = of_count_phandle_with_args(np, "clocks", "#clock-cells");
+	if (num_parents <= 0 || num_parents > 1)
+		return;
+
+	for (i = 0; i < num_parents; ++i) {
+		parent_names[i] = of_clk_get_parent_name(np, i);
+		if (!parent_names[i])
+			return;
+	}
+
+	of_property_read_string(np, "clock-output-names", &name);
+
+	clk = at91_clk_register_sam9260_slow(pmc, name, parent_names,
+					     num_parents);
+	if (IS_ERR(clk))
+		return;
+
+	of_clk_add_provider(np, of_clk_src_simple_get, clk);
+}
diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c
index dc5fdde98e1a..524196bb35a5 100644
--- a/drivers/clk/at91/pmc.c
+++ b/drivers/clk/at91/pmc.c
@@ -229,6 +229,11 @@ out_free_pmc:
 }
 
 static const struct of_device_id pmc_clk_ids[] __initconst = {
+	/* Slow oscillator */
+	{
+		.compatible = "atmel,at91sam9260-clk-slow",
+		.data = of_at91sam9260_clk_slow_setup,
+	},
 	/* Main clock */
 	{
 		.compatible = "atmel,at91rm9200-clk-main-osc",
diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h
index 42cc7cc5e1d3..6c7625976113 100644
--- a/drivers/clk/at91/pmc.h
+++ b/drivers/clk/at91/pmc.h
@@ -58,6 +58,9 @@ static inline void pmc_write(struct at91_pmc *pmc, int offset, u32 value)
 int of_at91_get_clk_range(struct device_node *np, const char *propname,
 			  struct clk_range *range);
 
+extern void __init of_at91sam9260_clk_slow_setup(struct device_node *np,
+						 struct at91_pmc *pmc);
+
 extern void __init of_at91rm9200_clk_main_osc_setup(struct device_node *np,
 						    struct at91_pmc *pmc);
 extern void __init of_at91sam9x5_clk_main_rc_osc_setup(struct device_node *np,
diff --git a/drivers/clk/at91/sckc.c b/drivers/clk/at91/sckc.c
new file mode 100644
index 000000000000..1184d76a7ab7
--- /dev/null
+++ b/drivers/clk/at91/sckc.c
@@ -0,0 +1,57 @@
+/*
+ * drivers/clk/at91/sckc.c
+ *
+ *  Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
+ *
+ * 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.
+ *
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/io.h>
+
+#include "sckc.h"
+
+static const struct of_device_id sckc_clk_ids[] __initconst = {
+	/* Slow clock */
+	{
+		.compatible = "atmel,at91sam9x5-clk-slow-osc",
+		.data = of_at91sam9x5_clk_slow_osc_setup,
+	},
+	{
+		.compatible = "atmel,at91sam9x5-clk-slow-rc-osc",
+		.data = of_at91sam9x5_clk_slow_rc_osc_setup,
+	},
+	{
+		.compatible = "atmel,at91sam9x5-clk-slow",
+		.data = of_at91sam9x5_clk_slow_setup,
+	},
+	{ /*sentinel*/ }
+};
+
+static void __init of_at91sam9x5_sckc_setup(struct device_node *np)
+{
+	struct device_node *childnp;
+	void (*clk_setup)(struct device_node *, void __iomem *);
+	const struct of_device_id *clk_id;
+	void __iomem *regbase = of_iomap(np, 0);
+
+	if (!regbase)
+		return;
+
+	for_each_child_of_node(np, childnp) {
+		clk_id = of_match_node(sckc_clk_ids, childnp);
+		if (!clk_id)
+			continue;
+		clk_setup = clk_id->data;
+		clk_setup(childnp, regbase);
+	}
+}
+CLK_OF_DECLARE(at91sam9x5_clk_sckc, "atmel,at91sam9x5-sckc",
+	       of_at91sam9x5_sckc_setup);
diff --git a/drivers/clk/at91/sckc.h b/drivers/clk/at91/sckc.h
new file mode 100644
index 000000000000..836fcf59820f
--- /dev/null
+++ b/drivers/clk/at91/sckc.h
@@ -0,0 +1,22 @@
+/*
+ * drivers/clk/at91/sckc.h
+ *
+ *  Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
+ *
+ * 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.
+ */
+
+#ifndef __AT91_SCKC_H_
+#define __AT91_SCKC_H_
+
+extern void __init of_at91sam9x5_clk_slow_osc_setup(struct device_node *np,
+						    void __iomem *sckcr);
+extern void __init of_at91sam9x5_clk_slow_rc_osc_setup(struct device_node *np,
+						       void __iomem *sckcr);
+extern void __init of_at91sam9x5_clk_slow_setup(struct device_node *np,
+						void __iomem *sckcr);
+
+#endif /* __AT91_SCKC_H_ */
diff --git a/include/linux/clk/at91_pmc.h b/include/linux/clk/at91_pmc.h
index a6911ebbd02a..de4268d4987a 100644
--- a/include/linux/clk/at91_pmc.h
+++ b/include/linux/clk/at91_pmc.h
@@ -155,6 +155,7 @@ extern void __iomem *at91_pmc_base;
 #define		AT91_PMC_LOCKB		(1 <<  2)		/* PLLB Lock */
 #define		AT91_PMC_MCKRDY		(1 <<  3)		/* Master Clock */
 #define		AT91_PMC_LOCKU		(1 <<  6)		/* UPLL Lock [some SAM9] */
+#define		AT91_PMC_OSCSEL		(1 <<  7)		/* Slow Oscillator Selection [some SAM9] */
 #define		AT91_PMC_PCK0RDY	(1 <<  8)		/* Programmable Clock 0 */
 #define		AT91_PMC_PCK1RDY	(1 <<  9)		/* Programmable Clock 1 */
 #define		AT91_PMC_PCK2RDY	(1 << 10)		/* Programmable Clock 2 */
-- 
cgit 


From 7b42a997bfb93c6ae0709f34ec8e2860757804b5 Mon Sep 17 00:00:00 2001
From: Simon Horman <horms+renesas@verge.net.au>
Date: Fri, 18 Apr 2014 08:05:50 +0900
Subject: clk: shmobile: r8a7779: Add clocks support

The R8A7779 SoC has several clocks that are too custom to be supported in a
generic driver. Those clocks are all fixed rate clocks with multiplier and
divisor set according to boot mode configuration.

Based on work for R-Car Gen2 SoCs by Laurent Pinchart.

Cc: devicetree@vger.kernel.org
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
 .../bindings/clock/renesas,r8a7779-cpg-clocks.txt  |  27 ++++
 drivers/clk/shmobile/Makefile                      |   1 +
 drivers/clk/shmobile/clk-r8a7779.c                 | 180 +++++++++++++++++++++
 include/linux/clk/shmobile.h                       |   3 +
 4 files changed, 211 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/renesas,r8a7779-cpg-clocks.txt
 create mode 100644 drivers/clk/shmobile/clk-r8a7779.c

(limited to 'include/linux/clk')

diff --git a/Documentation/devicetree/bindings/clock/renesas,r8a7779-cpg-clocks.txt b/Documentation/devicetree/bindings/clock/renesas,r8a7779-cpg-clocks.txt
new file mode 100644
index 000000000000..ed3c8cb12f4e
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/renesas,r8a7779-cpg-clocks.txt
@@ -0,0 +1,27 @@
+* Renesas R8A7779 Clock Pulse Generator (CPG)
+
+The CPG generates core clocks for the R8A7779. It includes one PLL and
+several fixed ratio dividers
+
+Required Properties:
+
+  - compatible: Must be "renesas,r8a7779-cpg-clocks"
+  - reg: Base address and length of the memory resource used by the CPG
+
+  - clocks: Reference to the parent clock
+  - #clock-cells: Must be 1
+  - clock-output-names: The names of the clocks. Supported clocks are "plla",
+    "z", "zs", "s", "s1", "p", "b", "out".
+
+
+Example
+-------
+
+	cpg_clocks: cpg_clocks@ffc80000 {
+		compatible = "renesas,r8a7779-cpg-clocks";
+		reg = <0 0xffc80000 0 0x30>;
+		clocks = <&extal_clk>;
+		#clock-cells = <1>;
+		clock-output-names = "plla", "z", "zs", "s", "s1", "p",
+		                     "b", "out";
+	};
diff --git a/drivers/clk/shmobile/Makefile b/drivers/clk/shmobile/Makefile
index 5404cb931ebf..bdf342daefa5 100644
--- a/drivers/clk/shmobile/Makefile
+++ b/drivers/clk/shmobile/Makefile
@@ -1,5 +1,6 @@
 obj-$(CONFIG_ARCH_EMEV2)		+= clk-emev2.o
 obj-$(CONFIG_ARCH_R7S72100)		+= clk-rz.o
+obj-$(CONFIG_ARCH_R8A7779)		+= clk-r8a7779.o
 obj-$(CONFIG_ARCH_R8A7790)		+= clk-rcar-gen2.o
 obj-$(CONFIG_ARCH_R8A7791)		+= clk-rcar-gen2.o
 obj-$(CONFIG_ARCH_SHMOBILE_MULTI)	+= clk-div6.o
diff --git a/drivers/clk/shmobile/clk-r8a7779.c b/drivers/clk/shmobile/clk-r8a7779.c
new file mode 100644
index 000000000000..652ecacb6daf
--- /dev/null
+++ b/drivers/clk/shmobile/clk-r8a7779.c
@@ -0,0 +1,180 @@
+/*
+ * r8a7779 Core CPG Clocks
+ *
+ * Copyright (C) 2013, 2014 Horms Solutions Ltd.
+ *
+ * Contact: Simon Horman <horms@verge.net.au>
+ *
+ * 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; version 2 of the License.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/clk/shmobile.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/spinlock.h>
+
+#include <dt-bindings/clock/r8a7779-clock.h>
+
+#define CPG_NUM_CLOCKS			(R8A7779_CLK_OUT + 1)
+
+struct r8a7779_cpg {
+	struct clk_onecell_data data;
+	spinlock_t lock;
+	void __iomem *reg;
+};
+
+/* -----------------------------------------------------------------------------
+ * CPG Clock Data
+ */
+
+/*
+ *		MD1 = 1			MD1 = 0
+ *		(PLLA = 1500)		(PLLA = 1600)
+ *		(MHz)			(MHz)
+ *------------------------------------------------+--------------------
+ * clkz		1000   (2/3)		800   (1/2)
+ * clkzs	 250   (1/6)		200   (1/8)
+ * clki		 750   (1/2)		800   (1/2)
+ * clks		 250   (1/6)		200   (1/8)
+ * clks1	 125   (1/12)		100   (1/16)
+ * clks3	 187.5 (1/8)		200   (1/8)
+ * clks4	  93.7 (1/16)		100   (1/16)
+ * clkp		  62.5 (1/24)		 50   (1/32)
+ * clkg		  62.5 (1/24)		 66.6 (1/24)
+ * clkb, CLKOUT
+ * (MD2 = 0)	  62.5 (1/24)		 66.6 (1/24)
+ * (MD2 = 1)	  41.6 (1/36)		 50   (1/32)
+ */
+
+#define CPG_CLK_CONFIG_INDEX(md)	(((md) & (BIT(2)|BIT(1))) >> 1)
+
+struct cpg_clk_config {
+	unsigned int z_mult;
+	unsigned int z_div;
+	unsigned int zs_and_s_div;
+	unsigned int s1_div;
+	unsigned int p_div;
+	unsigned int b_and_out_div;
+};
+
+static const struct cpg_clk_config cpg_clk_configs[4] __initconst = {
+	{ 1, 2, 8, 16, 32, 24 },
+	{ 2, 3, 6, 12, 24, 24 },
+	{ 1, 2, 8, 16, 32, 32 },
+	{ 2, 3, 6, 12, 24, 36 },
+};
+
+/*
+ *   MD		PLLA Ratio
+ * 12 11
+ *------------------------
+ * 0  0		x42
+ * 0  1		x48
+ * 1  0		x56
+ * 1  1		x64
+ */
+
+#define CPG_PLLA_MULT_INDEX(md)	(((md) & (BIT(12)|BIT(11))) >> 11)
+
+static const unsigned int cpg_plla_mult[4] __initconst = { 42, 48, 56, 64 };
+
+/* -----------------------------------------------------------------------------
+ * Initialization
+ */
+
+static u32 cpg_mode __initdata;
+
+static struct clk * __init
+r8a7779_cpg_register_clock(struct device_node *np, struct r8a7779_cpg *cpg,
+			   const struct cpg_clk_config *config,
+			   unsigned int plla_mult, const char *name)
+{
+	const char *parent_name = "plla";
+	unsigned int mult = 1;
+	unsigned int div = 1;
+
+	if (!strcmp(name, "plla")) {
+		parent_name = of_clk_get_parent_name(np, 0);
+		mult = plla_mult;
+	} else if (!strcmp(name, "z")) {
+		div = config->z_div;
+		mult = config->z_mult;
+	} else if (!strcmp(name, "zs") || !strcmp(name, "s")) {
+		div = config->zs_and_s_div;
+	} else if (!strcmp(name, "s1")) {
+		div = config->s1_div;
+	} else if (!strcmp(name, "p")) {
+		div = config->p_div;
+	} else if (!strcmp(name, "b") || !strcmp(name, "out")) {
+		div = config->b_and_out_div;
+	} else {
+		return ERR_PTR(-EINVAL);
+	}
+
+	return clk_register_fixed_factor(NULL, name, parent_name, 0, mult, div);
+}
+
+static void __init r8a7779_cpg_clocks_init(struct device_node *np)
+{
+	const struct cpg_clk_config *config;
+	struct r8a7779_cpg *cpg;
+	struct clk **clks;
+	unsigned int i, plla_mult;
+	int num_clks;
+
+	num_clks = of_property_count_strings(np, "clock-output-names");
+	if (num_clks < 0) {
+		pr_err("%s: failed to count clocks\n", __func__);
+		return;
+	}
+
+	cpg = kzalloc(sizeof(*cpg), GFP_KERNEL);
+	clks = kzalloc(CPG_NUM_CLOCKS * sizeof(*clks), GFP_KERNEL);
+	if (cpg == NULL || clks == NULL) {
+		/* We're leaking memory on purpose, there's no point in cleaning
+		 * up as the system won't boot anyway.
+		 */
+		return;
+	}
+
+	spin_lock_init(&cpg->lock);
+
+	cpg->data.clks = clks;
+	cpg->data.clk_num = num_clks;
+
+	config = &cpg_clk_configs[CPG_CLK_CONFIG_INDEX(cpg_mode)];
+	plla_mult = cpg_plla_mult[CPG_PLLA_MULT_INDEX(cpg_mode)];
+
+	for (i = 0; i < num_clks; ++i) {
+		const char *name;
+		struct clk *clk;
+
+		of_property_read_string_index(np, "clock-output-names", i,
+					      &name);
+
+		clk = r8a7779_cpg_register_clock(np, cpg, config,
+						 plla_mult, name);
+		if (IS_ERR(clk))
+			pr_err("%s: failed to register %s %s clock (%ld)\n",
+			       __func__, np->name, name, PTR_ERR(clk));
+		else
+			cpg->data.clks[i] = clk;
+	}
+
+	of_clk_add_provider(np, of_clk_src_onecell_get, &cpg->data);
+}
+CLK_OF_DECLARE(r8a7779_cpg_clks, "renesas,r8a7779-cpg-clocks",
+	       r8a7779_cpg_clocks_init);
+
+void __init r8a7779_clocks_init(u32 mode)
+{
+	cpg_mode = mode;
+
+	of_clk_init(NULL);
+}
diff --git a/include/linux/clk/shmobile.h b/include/linux/clk/shmobile.h
index f9bf080a1123..9f8a14041dd5 100644
--- a/include/linux/clk/shmobile.h
+++ b/include/linux/clk/shmobile.h
@@ -1,7 +1,9 @@
 /*
  * Copyright 2013 Ideas On Board SPRL
+ * Copyright 2013, 2014 Horms Solutions Ltd.
  *
  * Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+ * Contact: Simon Horman <horms@verge.net.au>
  *
  * 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
@@ -14,6 +16,7 @@
 
 #include <linux/types.h>
 
+void r8a7779_clocks_init(u32 mode);
 void rcar_gen2_clocks_init(u32 mode);
 
 #endif
-- 
cgit 


From a97181adf1502128e2945b4fef2591249c565467 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 12 May 2014 14:04:47 +0200
Subject: clk: sunxi: Fixup clk_sunxi_mmc_phase_control to take a clk rather
 then a hw_clk

__clk_get_hw is supposed to be used by clk providers, not clk consumers.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
 drivers/clk/sunxi/clk-sunxi.c | 3 ++-
 include/linux/clk/sunxi.h     | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

(limited to 'include/linux/clk')

diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
index 59f90401b900..4cc2b2a5aa75 100644
--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
@@ -510,11 +510,12 @@ CLK_OF_DECLARE(sun7i_a20_gmac, "allwinner,sun7i-a20-gmac-clk",
  * clk_sunxi_mmc_phase_control() - configures MMC clock phase control
  */
 
-void clk_sunxi_mmc_phase_control(struct clk_hw *hw, u8 sample, u8 output)
+void clk_sunxi_mmc_phase_control(struct clk *clk, u8 sample, u8 output)
 {
 	#define to_clk_composite(_hw) container_of(_hw, struct clk_composite, hw)
 	#define to_clk_factors(_hw) container_of(_hw, struct clk_factors, hw)
 
+	struct clk_hw *hw = __clk_get_hw(clk);
 	struct clk_composite *composite = to_clk_composite(hw);
 	struct clk_hw *rate_hw = composite->rate_hw;
 	struct clk_factors *factors = to_clk_factors(rate_hw);
diff --git a/include/linux/clk/sunxi.h b/include/linux/clk/sunxi.h
index 1ef5c899e458..aed28c4451d9 100644
--- a/include/linux/clk/sunxi.h
+++ b/include/linux/clk/sunxi.h
@@ -17,6 +17,6 @@
 
 #include <linux/clk.h>
 
-void clk_sunxi_mmc_phase_control(struct clk_hw *hw, u8 sample, u8 output);
+void clk_sunxi_mmc_phase_control(struct clk *clk, u8 sample, u8 output);
 
 #endif
-- 
cgit 


From aa76fcf473f6bfa839f37f77b6fdb71f0fb88d8f Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Fri, 21 Feb 2014 17:36:21 +0200
Subject: CLK: TI: DPLL: add support for omap2 core dpll

OMAP2 has slightly different DPLL compared to later OMAP generations.
This patch adds support for the ti,omap2-dpll-core-clock and also adds
the bindings documentation.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 .../devicetree/bindings/clock/ti/dpll.txt          |  9 +++
 arch/arm/mach-omap2/clock.h                        |  1 -
 arch/arm/mach-omap2/clock2xxx.h                    |  4 --
 drivers/clk/ti/dpll.c                              | 78 +++++++++++++++++++---
 include/linux/clk/ti.h                             |  6 ++
 5 files changed, 82 insertions(+), 16 deletions(-)

(limited to 'include/linux/clk')

diff --git a/Documentation/devicetree/bindings/clock/ti/dpll.txt b/Documentation/devicetree/bindings/clock/ti/dpll.txt
index 30bfdb7c9f18..50a1a427608f 100644
--- a/Documentation/devicetree/bindings/clock/ti/dpll.txt
+++ b/Documentation/devicetree/bindings/clock/ti/dpll.txt
@@ -30,6 +30,7 @@ Required properties:
 		"ti,am3-dpll-clock",
 		"ti,am3-dpll-core-clock",
 		"ti,am3-dpll-x2-clock",
+		"ti,omap2-dpll-core-clock",
 
 - #clock-cells : from common clock binding; shall be set to 0.
 - clocks : link phandles of parent clocks, first entry lists reference clock
@@ -41,6 +42,7 @@ Required properties:
 	"mult-div1" - contains the multiplier / divider register base address
 	"autoidle" - contains the autoidle register base address (optional)
   ti,am3-* dpll types do not have autoidle register
+  ti,omap2-* dpll type does not support idlest / autoidle registers
 
 Optional properties:
 - DPLL mode setting - defining any one or more of the following overrides
@@ -73,3 +75,10 @@ Examples:
 		clocks = <&sys_clkin_ck>, <&sys_clkin_ck>;
 		reg = <0x90>, <0x5c>, <0x68>;
 	};
+
+	dpll_ck: dpll_ck {
+		#clock-cells = <0>;
+		compatible = "ti,omap2-dpll-core-clock";
+		clocks = <&sys_ck>, <&sys_ck>;
+		reg = <0x0500>, <0x0540>;
+	};
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index bda767a9dea8..f6e9904d7a75 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -279,7 +279,6 @@ extern const struct clk_hw_omap_ops clkhwops_omap3430es2_hsotgusb_wait;
 extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_module_wait;
 extern const struct clk_hw_omap_ops clkhwops_apll54;
 extern const struct clk_hw_omap_ops clkhwops_apll96;
-extern const struct clk_hw_omap_ops clkhwops_omap2xxx_dpll;
 extern const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait;
 
 /* clksel_rate blocks shared between OMAP44xx and AM33xx */
diff --git a/arch/arm/mach-omap2/clock2xxx.h b/arch/arm/mach-omap2/clock2xxx.h
index 539dc08afbba..45f41a411603 100644
--- a/arch/arm/mach-omap2/clock2xxx.h
+++ b/arch/arm/mach-omap2/clock2xxx.h
@@ -21,10 +21,6 @@ unsigned long omap2xxx_sys_clk_recalc(struct clk_hw *clk,
 				      unsigned long parent_rate);
 unsigned long omap2_osc_clk_recalc(struct clk_hw *clk,
 				   unsigned long parent_rate);
-unsigned long omap2_dpllcore_recalc(struct clk_hw *hw,
-				    unsigned long parent_rate);
-int omap2_reprogram_dpllcore(struct clk_hw *clk, unsigned long rate,
-			     unsigned long parent_rate);
 void omap2xxx_clkt_dpllcore_init(struct clk_hw *hw);
 unsigned long omap2_clk_apll54_recalc(struct clk_hw *hw,
 				      unsigned long parent_rate);
diff --git a/drivers/clk/ti/dpll.c b/drivers/clk/ti/dpll.c
index dda262db42ea..34e233990212 100644
--- a/drivers/clk/ti/dpll.c
+++ b/drivers/clk/ti/dpll.c
@@ -35,21 +35,18 @@ static const struct clk_ops dpll_m4xen_ck_ops = {
 	.set_rate	= &omap3_noncore_dpll_set_rate,
 	.get_parent	= &omap2_init_dpll_parent,
 };
+#else
+static const struct clk_ops dpll_m4xen_ck_ops = {};
 #endif
 
+#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4) || \
+	defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX) || \
+	defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
 static const struct clk_ops dpll_core_ck_ops = {
 	.recalc_rate	= &omap3_dpll_recalc,
 	.get_parent	= &omap2_init_dpll_parent,
 };
 
-#ifdef CONFIG_ARCH_OMAP3
-static const struct clk_ops omap3_dpll_core_ck_ops = {
-	.get_parent	= &omap2_init_dpll_parent,
-	.recalc_rate	= &omap3_dpll_recalc,
-	.round_rate	= &omap2_dpll_round_rate,
-};
-#endif
-
 static const struct clk_ops dpll_ck_ops = {
 	.enable		= &omap3_noncore_dpll_enable,
 	.disable	= &omap3_noncore_dpll_disable,
@@ -65,6 +62,33 @@ static const struct clk_ops dpll_no_gate_ck_ops = {
 	.round_rate	= &omap2_dpll_round_rate,
 	.set_rate	= &omap3_noncore_dpll_set_rate,
 };
+#else
+static const struct clk_ops dpll_core_ck_ops = {};
+static const struct clk_ops dpll_ck_ops = {};
+static const struct clk_ops dpll_no_gate_ck_ops = {};
+const struct clk_hw_omap_ops clkhwops_omap3_dpll = {};
+#endif
+
+#ifdef CONFIG_ARCH_OMAP2
+static const struct clk_ops omap2_dpll_core_ck_ops = {
+	.get_parent	= &omap2_init_dpll_parent,
+	.recalc_rate	= &omap2_dpllcore_recalc,
+	.round_rate	= &omap2_dpll_round_rate,
+	.set_rate	= &omap2_reprogram_dpllcore,
+};
+#else
+static const struct clk_ops omap2_dpll_core_ck_ops = {};
+#endif
+
+#ifdef CONFIG_ARCH_OMAP3
+static const struct clk_ops omap3_dpll_core_ck_ops = {
+	.get_parent	= &omap2_init_dpll_parent,
+	.recalc_rate	= &omap3_dpll_recalc,
+	.round_rate	= &omap2_dpll_round_rate,
+};
+#else
+static const struct clk_ops omap3_dpll_core_ck_ops = {};
+#endif
 
 #ifdef CONFIG_ARCH_OMAP3
 static const struct clk_ops omap3_dpll_ck_ops = {
@@ -237,10 +261,27 @@ static void __init of_ti_dpll_setup(struct device_node *node,
 	init->parent_names = parent_names;
 
 	dd->control_reg = ti_clk_get_reg_addr(node, 0);
-	dd->idlest_reg = ti_clk_get_reg_addr(node, 1);
-	dd->mult_div1_reg = ti_clk_get_reg_addr(node, 2);
 
-	if (!dd->control_reg || !dd->idlest_reg || !dd->mult_div1_reg)
+	/*
+	 * Special case for OMAP2 DPLL, register order is different due to
+	 * missing idlest_reg, also clkhwops is different. Detected from
+	 * missing idlest_mask.
+	 */
+	if (!dd->idlest_mask) {
+		dd->mult_div1_reg = ti_clk_get_reg_addr(node, 1);
+#ifdef CONFIG_ARCH_OMAP2
+		clk_hw->ops = &clkhwops_omap2xxx_dpll;
+		omap2xxx_clkt_dpllcore_init(&clk_hw->hw);
+#endif
+	} else {
+		dd->idlest_reg = ti_clk_get_reg_addr(node, 1);
+		if (!dd->idlest_reg)
+			goto cleanup;
+
+		dd->mult_div1_reg = ti_clk_get_reg_addr(node, 2);
+	}
+
+	if (!dd->control_reg || !dd->mult_div1_reg)
 		goto cleanup;
 
 	if (dd->autoidle_mask) {
@@ -547,3 +588,18 @@ static void __init of_ti_am3_core_dpll_setup(struct device_node *node)
 }
 CLK_OF_DECLARE(ti_am3_core_dpll_clock, "ti,am3-dpll-core-clock",
 	       of_ti_am3_core_dpll_setup);
+
+static void __init of_ti_omap2_core_dpll_setup(struct device_node *node)
+{
+	const struct dpll_data dd = {
+		.enable_mask = 0x3,
+		.mult_mask = 0x3ff << 12,
+		.div1_mask = 0xf << 8,
+		.max_divider = 16,
+		.min_divider = 1,
+	};
+
+	of_ti_dpll_setup(node, &omap2_dpll_core_ck_ops, &dd);
+}
+CLK_OF_DECLARE(ti_omap2_core_dpll_clock, "ti,omap2-dpll-core-clock",
+	       of_ti_omap2_core_dpll_setup);
diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h
index 4a21a872dbbd..753878c6fa52 100644
--- a/include/linux/clk/ti.h
+++ b/include/linux/clk/ti.h
@@ -259,6 +259,11 @@ int omap2_dflt_clk_enable(struct clk_hw *hw);
 void omap2_dflt_clk_disable(struct clk_hw *hw);
 int omap2_dflt_clk_is_enabled(struct clk_hw *hw);
 void omap3_clk_lock_dpll5(void);
+unsigned long omap2_dpllcore_recalc(struct clk_hw *hw,
+				    unsigned long parent_rate);
+int omap2_reprogram_dpllcore(struct clk_hw *clk, unsigned long rate,
+			     unsigned long parent_rate);
+void omap2xxx_clkt_dpllcore_init(struct clk_hw *hw);
 
 void __iomem *ti_clk_get_reg_addr(struct device_node *node, int index);
 void ti_dt_clocks_register(struct ti_dt_clk *oclks);
@@ -287,6 +292,7 @@ static inline void of_ti_clk_allow_autoidle_all(void) { }
 static inline void of_ti_clk_deny_autoidle_all(void) { }
 #endif
 
+extern const struct clk_hw_omap_ops clkhwops_omap2xxx_dpll;
 extern const struct clk_hw_omap_ops clkhwops_omap3_dpll;
 extern const struct clk_hw_omap_ops clkhwops_omap4_dpllmx;
 extern const struct clk_hw_omap_ops clkhwops_wait;
-- 
cgit 


From 4d008589e271e28eae728eef7f5fb1f658f12b9f Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Mon, 24 Feb 2014 16:06:34 +0200
Subject: CLK: TI: APLL: add support for omap2 aplls

This patch adds support for omap2 type aplls, which have gating and
autoidle functionality.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 .../devicetree/bindings/clock/ti/apll.txt          |  24 ++-
 arch/arm/mach-omap2/clock.h                        |  11 --
 drivers/clk/ti/apll.c                              | 181 +++++++++++++++++++++
 include/linux/clk/ti.h                             |  21 ++-
 4 files changed, 220 insertions(+), 17 deletions(-)

(limited to 'include/linux/clk')

diff --git a/Documentation/devicetree/bindings/clock/ti/apll.txt b/Documentation/devicetree/bindings/clock/ti/apll.txt
index 7faf5a68b3be..ade4dd4c30f0 100644
--- a/Documentation/devicetree/bindings/clock/ti/apll.txt
+++ b/Documentation/devicetree/bindings/clock/ti/apll.txt
@@ -14,18 +14,32 @@ a subtype of a DPLL [2], although a simplified one at that.
 [2] Documentation/devicetree/bindings/clock/ti/dpll.txt
 
 Required properties:
-- compatible : shall be "ti,dra7-apll-clock"
+- compatible : shall be "ti,dra7-apll-clock" or "ti,omap2-apll-clock"
 - #clock-cells : from common clock binding; shall be set to 0.
 - clocks : link phandles of parent clocks (clk-ref and clk-bypass)
 - reg : address and length of the register set for controlling the APLL.
   It contains the information of registers in the following order:
-	"control" - contains the control register base address
-	"idlest" - contains the idlest register base address
+	"control" - contains the control register offset
+	"idlest" - contains the idlest register offset
+	"autoidle" - contains the autoidle register offset (OMAP2 only)
+- ti,clock-frequency : static clock frequency for the clock (OMAP2 only)
+- ti,idlest-shift : bit-shift for the idlest field (OMAP2 only)
+- ti,bit-shift : bit-shift for enable and autoidle fields (OMAP2 only)
 
 Examples:
-	apll_pcie_ck: apll_pcie_ck@4a008200 {
+	apll_pcie_ck: apll_pcie_ck {
 		#clock-cells = <0>;
 		clocks = <&apll_pcie_in_clk_mux>, <&dpll_pcie_ref_ck>;
-		reg = <0x4a00821c 0x4>, <0x4a008220 0x4>;
+		reg = <0x021c>, <0x0220>;
 		compatible = "ti,dra7-apll-clock";
 	};
+
+	apll96_ck: apll96_ck {
+		#clock-cells = <0>;
+		compatible = "ti,omap2-apll-clock";
+		clocks = <&sys_ck>;
+		ti,bit-shift = <2>;
+		ti,idlest-shift = <8>;
+		ti,clock-frequency = <96000000>;
+		reg = <0x0500>, <0x0530>, <0x0520>;
+	};
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index f6e9904d7a75..eb441d137843 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -178,17 +178,6 @@ struct clksel {
 	const struct clksel_rate *rates;
 };
 
-struct clk_hw_omap_ops {
-	void			(*find_idlest)(struct clk_hw_omap *oclk,
-					void __iomem **idlest_reg,
-					u8 *idlest_bit, u8 *idlest_val);
-	void			(*find_companion)(struct clk_hw_omap *oclk,
-					void __iomem **other_reg,
-					u8 *other_bit);
-	void			(*allow_idle)(struct clk_hw_omap *oclk);
-	void			(*deny_idle)(struct clk_hw_omap *oclk);
-};
-
 unsigned long omap_fixed_divisor_recalc(struct clk_hw *hw,
 					unsigned long parent_rate);
 
diff --git a/drivers/clk/ti/apll.c b/drivers/clk/ti/apll.c
index b986f61f5a77..5428c9c547cd 100644
--- a/drivers/clk/ti/apll.c
+++ b/drivers/clk/ti/apll.c
@@ -221,3 +221,184 @@ cleanup:
 	kfree(init);
 }
 CLK_OF_DECLARE(dra7_apll_clock, "ti,dra7-apll-clock", of_dra7_apll_setup);
+
+#define OMAP2_EN_APLL_LOCKED	0x3
+#define OMAP2_EN_APLL_STOPPED	0x0
+
+static int omap2_apll_is_enabled(struct clk_hw *hw)
+{
+	struct clk_hw_omap *clk = to_clk_hw_omap(hw);
+	struct dpll_data *ad = clk->dpll_data;
+	u32 v;
+
+	v = ti_clk_ll_ops->clk_readl(ad->control_reg);
+	v &= ad->enable_mask;
+
+	v >>= __ffs(ad->enable_mask);
+
+	return v == OMAP2_EN_APLL_LOCKED ? 1 : 0;
+}
+
+static unsigned long omap2_apll_recalc(struct clk_hw *hw,
+				       unsigned long parent_rate)
+{
+	struct clk_hw_omap *clk = to_clk_hw_omap(hw);
+
+	if (omap2_apll_is_enabled(hw))
+		return clk->fixed_rate;
+
+	return 0;
+}
+
+static int omap2_apll_enable(struct clk_hw *hw)
+{
+	struct clk_hw_omap *clk = to_clk_hw_omap(hw);
+	struct dpll_data *ad = clk->dpll_data;
+	u32 v;
+	int i = 0;
+
+	v = ti_clk_ll_ops->clk_readl(ad->control_reg);
+	v &= ~ad->enable_mask;
+	v |= OMAP2_EN_APLL_LOCKED << __ffs(ad->enable_mask);
+	ti_clk_ll_ops->clk_writel(v, ad->control_reg);
+
+	while (1) {
+		v = ti_clk_ll_ops->clk_readl(ad->idlest_reg);
+		if (v & ad->idlest_mask)
+			break;
+		if (i > MAX_APLL_WAIT_TRIES)
+			break;
+		i++;
+		udelay(1);
+	}
+
+	if (i == MAX_APLL_WAIT_TRIES) {
+		pr_warn("%s failed to transition to locked\n",
+			__clk_get_name(clk->hw.clk));
+		return -EBUSY;
+	}
+
+	return 0;
+}
+
+static void omap2_apll_disable(struct clk_hw *hw)
+{
+	struct clk_hw_omap *clk = to_clk_hw_omap(hw);
+	struct dpll_data *ad = clk->dpll_data;
+	u32 v;
+
+	v = ti_clk_ll_ops->clk_readl(ad->control_reg);
+	v &= ~ad->enable_mask;
+	v |= OMAP2_EN_APLL_STOPPED << __ffs(ad->enable_mask);
+	ti_clk_ll_ops->clk_writel(v, ad->control_reg);
+}
+
+static struct clk_ops omap2_apll_ops = {
+	.enable		= &omap2_apll_enable,
+	.disable	= &omap2_apll_disable,
+	.is_enabled	= &omap2_apll_is_enabled,
+	.recalc_rate	= &omap2_apll_recalc,
+};
+
+static void omap2_apll_set_autoidle(struct clk_hw_omap *clk, u32 val)
+{
+	struct dpll_data *ad = clk->dpll_data;
+	u32 v;
+
+	v = ti_clk_ll_ops->clk_readl(ad->autoidle_reg);
+	v &= ~ad->autoidle_mask;
+	v |= val << __ffs(ad->autoidle_mask);
+	ti_clk_ll_ops->clk_writel(v, ad->control_reg);
+}
+
+#define OMAP2_APLL_AUTOIDLE_LOW_POWER_STOP	0x3
+#define OMAP2_APLL_AUTOIDLE_DISABLE		0x0
+
+static void omap2_apll_allow_idle(struct clk_hw_omap *clk)
+{
+	omap2_apll_set_autoidle(clk, OMAP2_APLL_AUTOIDLE_LOW_POWER_STOP);
+}
+
+static void omap2_apll_deny_idle(struct clk_hw_omap *clk)
+{
+	omap2_apll_set_autoidle(clk, OMAP2_APLL_AUTOIDLE_DISABLE);
+}
+
+static struct clk_hw_omap_ops omap2_apll_hwops = {
+	.allow_idle	= &omap2_apll_allow_idle,
+	.deny_idle	= &omap2_apll_deny_idle,
+};
+
+static void __init of_omap2_apll_setup(struct device_node *node)
+{
+	struct dpll_data *ad = NULL;
+	struct clk_hw_omap *clk_hw = NULL;
+	struct clk_init_data *init = NULL;
+	struct clk *clk;
+	const char *parent_name;
+	u32 val;
+
+	ad = kzalloc(sizeof(*clk_hw), GFP_KERNEL);
+	clk_hw = kzalloc(sizeof(*clk_hw), GFP_KERNEL);
+	init = kzalloc(sizeof(*init), GFP_KERNEL);
+
+	if (!ad || !clk_hw || !init)
+		goto cleanup;
+
+	clk_hw->dpll_data = ad;
+	clk_hw->hw.init = init;
+	init->ops = &omap2_apll_ops;
+	init->name = node->name;
+	clk_hw->ops = &omap2_apll_hwops;
+
+	init->num_parents = of_clk_get_parent_count(node);
+	if (init->num_parents != 1) {
+		pr_err("%s must have one parent\n", node->name);
+		goto cleanup;
+	}
+
+	parent_name = of_clk_get_parent_name(node, 0);
+	init->parent_names = &parent_name;
+
+	if (of_property_read_u32(node, "ti,clock-frequency", &val)) {
+		pr_err("%s missing clock-frequency\n", node->name);
+		goto cleanup;
+	}
+	clk_hw->fixed_rate = val;
+
+	if (of_property_read_u32(node, "ti,bit-shift", &val)) {
+		pr_err("%s missing bit-shift\n", node->name);
+		goto cleanup;
+	}
+
+	clk_hw->enable_bit = val;
+	ad->enable_mask = 0x3 << val;
+	ad->autoidle_mask = 0x3 << val;
+
+	if (of_property_read_u32(node, "ti,idlest-shift", &val)) {
+		pr_err("%s missing idlest-shift\n", node->name);
+		goto cleanup;
+	}
+
+	ad->idlest_mask = 1 << val;
+
+	ad->control_reg = ti_clk_get_reg_addr(node, 0);
+	ad->autoidle_reg = ti_clk_get_reg_addr(node, 1);
+	ad->idlest_reg = ti_clk_get_reg_addr(node, 2);
+
+	if (!ad->control_reg || !ad->autoidle_reg || !ad->idlest_reg)
+		goto cleanup;
+
+	clk = clk_register(NULL, &clk_hw->hw);
+	if (!IS_ERR(clk)) {
+		of_clk_add_provider(node, of_clk_src_simple_get, clk);
+		kfree(init);
+		return;
+	}
+cleanup:
+	kfree(ad);
+	kfree(clk_hw);
+	kfree(init);
+}
+CLK_OF_DECLARE(omap2_apll_clock, "ti,omap2-apll-clock",
+	       of_omap2_apll_setup);
diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h
index 753878c6fa52..44bf84002a34 100644
--- a/include/linux/clk/ti.h
+++ b/include/linux/clk/ti.h
@@ -94,7 +94,26 @@ struct dpll_data {
 	u8			flags;
 };
 
-struct clk_hw_omap_ops;
+struct clk_hw_omap;
+
+/**
+ * struct clk_hw_omap_ops - OMAP clk ops
+ * @find_idlest: find idlest register information for a clock
+ * @find_companion: find companion clock register information for a clock,
+ *		    basically converts CM_ICLKEN* <-> CM_FCLKEN*
+ * @allow_idle: enables autoidle hardware functionality for a clock
+ * @deny_idle: prevent autoidle hardware functionality for a clock
+ */
+struct clk_hw_omap_ops {
+	void	(*find_idlest)(struct clk_hw_omap *oclk,
+			       void __iomem **idlest_reg,
+			       u8 *idlest_bit, u8 *idlest_val);
+	void	(*find_companion)(struct clk_hw_omap *oclk,
+				  void __iomem **other_reg,
+				  u8 *other_bit);
+	void	(*allow_idle)(struct clk_hw_omap *oclk);
+	void	(*deny_idle)(struct clk_hw_omap *oclk);
+};
 
 /**
  * struct clk_hw_omap - OMAP struct clk
-- 
cgit 


From de742570745e12b53c70130ace958f2a60044000 Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Tue, 25 Feb 2014 19:16:07 +0200
Subject: CLK: TI: interface: add support for omap2430 specific interface clock

OMAP2430 I2CHS modules require specific hardware ops to be used, so added
a new compatible string for this.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 Documentation/devicetree/bindings/clock/ti/interface.txt |  2 ++
 arch/arm/mach-omap2/clock.h                              |  1 -
 drivers/clk/ti/interface.c                               | 11 +++++++++++
 include/linux/clk/ti.h                                   |  1 +
 4 files changed, 14 insertions(+), 1 deletion(-)

(limited to 'include/linux/clk')

diff --git a/Documentation/devicetree/bindings/clock/ti/interface.txt b/Documentation/devicetree/bindings/clock/ti/interface.txt
index 064e8caccac3..3111a409fea6 100644
--- a/Documentation/devicetree/bindings/clock/ti/interface.txt
+++ b/Documentation/devicetree/bindings/clock/ti/interface.txt
@@ -21,6 +21,8 @@ Required properties:
   "ti,omap3-dss-interface-clock" - interface clock with DSS specific HW handling
   "ti,omap3-ssi-interface-clock" - interface clock with SSI specific HW handling
   "ti,am35xx-interface-clock" - interface clock with AM35xx specific HW handling
+  "ti,omap2430-interface-clock" - interface clock with OMAP2430 specific HW
+				  handling
 - #clock-cells : from common clock binding; shall be set to 0
 - clocks : link to phandle of parent clock
 - reg : base address for the control register
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index eb441d137843..12f54d428d7c 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -268,7 +268,6 @@ extern const struct clk_hw_omap_ops clkhwops_omap3430es2_hsotgusb_wait;
 extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_module_wait;
 extern const struct clk_hw_omap_ops clkhwops_apll54;
 extern const struct clk_hw_omap_ops clkhwops_apll96;
-extern const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait;
 
 /* clksel_rate blocks shared between OMAP44xx and AM33xx */
 extern const struct clksel_rate div_1_0_rates[];
diff --git a/drivers/clk/ti/interface.c b/drivers/clk/ti/interface.c
index 320a2b168bb2..9c3e8c4aaa40 100644
--- a/drivers/clk/ti/interface.c
+++ b/drivers/clk/ti/interface.c
@@ -94,6 +94,7 @@ static void __init of_ti_no_wait_interface_clk_setup(struct device_node *node)
 CLK_OF_DECLARE(ti_no_wait_interface_clk, "ti,omap3-no-wait-interface-clock",
 	       of_ti_no_wait_interface_clk_setup);
 
+#ifdef CONFIG_ARCH_OMAP3
 static void __init of_ti_hsotgusb_interface_clk_setup(struct device_node *node)
 {
 	_of_ti_interface_clk_setup(node,
@@ -123,3 +124,13 @@ static void __init of_ti_am35xx_interface_clk_setup(struct device_node *node)
 }
 CLK_OF_DECLARE(ti_am35xx_interface_clk, "ti,am35xx-interface-clock",
 	       of_ti_am35xx_interface_clk_setup);
+#endif
+
+#ifdef CONFIG_SOC_OMAP2430
+static void __init of_ti_omap2430_interface_clk_setup(struct device_node *node)
+{
+	_of_ti_interface_clk_setup(node, &clkhwops_omap2430_i2chs_wait);
+}
+CLK_OF_DECLARE(ti_omap2430_interface_clk, "ti,omap2430-interface-clock",
+	       of_ti_omap2430_interface_clk_setup);
+#endif
diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h
index 44bf84002a34..a8390d478528 100644
--- a/include/linux/clk/ti.h
+++ b/include/linux/clk/ti.h
@@ -312,6 +312,7 @@ static inline void of_ti_clk_deny_autoidle_all(void) { }
 #endif
 
 extern const struct clk_hw_omap_ops clkhwops_omap2xxx_dpll;
+extern const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait;
 extern const struct clk_hw_omap_ops clkhwops_omap3_dpll;
 extern const struct clk_hw_omap_ops clkhwops_omap4_dpllmx;
 extern const struct clk_hw_omap_ops clkhwops_wait;
-- 
cgit 


From be67c3bf382c591d8267e0ef12d80041854731d9 Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Mon, 24 Feb 2014 17:52:57 +0200
Subject: CLK: TI: OMAP2: add clock init support

Adds support for registering the alias clocks, boot time clock-enable list
and disabling autoidle of clocks.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 drivers/clk/ti/Makefile   |   1 +
 drivers/clk/ti/clk-2xxx.c | 254 ++++++++++++++++++++++++++++++++++++++++++++++
 include/linux/clk/ti.h    |   2 +
 3 files changed, 257 insertions(+)
 create mode 100644 drivers/clk/ti/clk-2xxx.c

(limited to 'include/linux/clk')

diff --git a/drivers/clk/ti/Makefile b/drivers/clk/ti/Makefile
index 4319d4031aa3..4afeaed9e9ba 100644
--- a/drivers/clk/ti/Makefile
+++ b/drivers/clk/ti/Makefile
@@ -3,6 +3,7 @@ obj-y					+= clk.o autoidle.o clockdomain.o
 clk-common				= dpll.o composite.o divider.o gate.o \
 					  fixed-factor.o mux.o apll.o
 obj-$(CONFIG_SOC_AM33XX)		+= $(clk-common) clk-33xx.o
+obj-$(CONFIG_ARCH_OMAP2)		+= $(clk-common) interface.o clk-2xxx.o
 obj-$(CONFIG_ARCH_OMAP3)		+= $(clk-common) interface.o clk-3xxx.o
 obj-$(CONFIG_ARCH_OMAP4)		+= $(clk-common) clk-44xx.o
 obj-$(CONFIG_SOC_OMAP5)			+= $(clk-common) clk-54xx.o
diff --git a/drivers/clk/ti/clk-2xxx.c b/drivers/clk/ti/clk-2xxx.c
new file mode 100644
index 000000000000..f6400fb5ee3e
--- /dev/null
+++ b/drivers/clk/ti/clk-2xxx.c
@@ -0,0 +1,254 @@
+/*
+ * OMAP2 Clock init
+ *
+ * Copyright (C) 2013 Texas Instruments, Inc
+ *     Tero Kristo (t-kristo@ti.com)
+ *
+ * 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 version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/clk-provider.h>
+#include <linux/clk/ti.h>
+
+static struct ti_dt_clk omap2xxx_clks[] = {
+	DT_CLK(NULL, "func_32k_ck", "func_32k_ck"),
+	DT_CLK(NULL, "secure_32k_ck", "secure_32k_ck"),
+	DT_CLK(NULL, "virt_12m_ck", "virt_12m_ck"),
+	DT_CLK(NULL, "virt_13m_ck", "virt_13m_ck"),
+	DT_CLK(NULL, "virt_19200000_ck", "virt_19200000_ck"),
+	DT_CLK(NULL, "virt_26m_ck", "virt_26m_ck"),
+	DT_CLK(NULL, "aplls_clkin_ck", "aplls_clkin_ck"),
+	DT_CLK(NULL, "aplls_clkin_x2_ck", "aplls_clkin_x2_ck"),
+	DT_CLK(NULL, "osc_ck", "osc_ck"),
+	DT_CLK(NULL, "sys_ck", "sys_ck"),
+	DT_CLK(NULL, "alt_ck", "alt_ck"),
+	DT_CLK(NULL, "mcbsp_clks", "mcbsp_clks"),
+	DT_CLK(NULL, "dpll_ck", "dpll_ck"),
+	DT_CLK(NULL, "apll96_ck", "apll96_ck"),
+	DT_CLK(NULL, "apll54_ck", "apll54_ck"),
+	DT_CLK(NULL, "func_54m_ck", "func_54m_ck"),
+	DT_CLK(NULL, "core_ck", "core_ck"),
+	DT_CLK(NULL, "func_96m_ck", "func_96m_ck"),
+	DT_CLK(NULL, "func_48m_ck", "func_48m_ck"),
+	DT_CLK(NULL, "func_12m_ck", "func_12m_ck"),
+	DT_CLK(NULL, "sys_clkout_src", "sys_clkout_src"),
+	DT_CLK(NULL, "sys_clkout", "sys_clkout"),
+	DT_CLK(NULL, "emul_ck", "emul_ck"),
+	DT_CLK(NULL, "mpu_ck", "mpu_ck"),
+	DT_CLK(NULL, "dsp_fck", "dsp_fck"),
+	DT_CLK(NULL, "gfx_3d_fck", "gfx_3d_fck"),
+	DT_CLK(NULL, "gfx_2d_fck", "gfx_2d_fck"),
+	DT_CLK(NULL, "gfx_ick", "gfx_ick"),
+	DT_CLK("omapdss_dss", "ick", "dss_ick"),
+	DT_CLK(NULL, "dss_ick", "dss_ick"),
+	DT_CLK(NULL, "dss1_fck", "dss1_fck"),
+	DT_CLK(NULL, "dss2_fck", "dss2_fck"),
+	DT_CLK(NULL, "dss_54m_fck", "dss_54m_fck"),
+	DT_CLK(NULL, "core_l3_ck", "core_l3_ck"),
+	DT_CLK(NULL, "ssi_fck", "ssi_ssr_sst_fck"),
+	DT_CLK(NULL, "usb_l4_ick", "usb_l4_ick"),
+	DT_CLK(NULL, "l4_ck", "l4_ck"),
+	DT_CLK(NULL, "ssi_l4_ick", "ssi_l4_ick"),
+	DT_CLK(NULL, "gpt1_ick", "gpt1_ick"),
+	DT_CLK(NULL, "gpt1_fck", "gpt1_fck"),
+	DT_CLK(NULL, "gpt2_ick", "gpt2_ick"),
+	DT_CLK(NULL, "gpt2_fck", "gpt2_fck"),
+	DT_CLK(NULL, "gpt3_ick", "gpt3_ick"),
+	DT_CLK(NULL, "gpt3_fck", "gpt3_fck"),
+	DT_CLK(NULL, "gpt4_ick", "gpt4_ick"),
+	DT_CLK(NULL, "gpt4_fck", "gpt4_fck"),
+	DT_CLK(NULL, "gpt5_ick", "gpt5_ick"),
+	DT_CLK(NULL, "gpt5_fck", "gpt5_fck"),
+	DT_CLK(NULL, "gpt6_ick", "gpt6_ick"),
+	DT_CLK(NULL, "gpt6_fck", "gpt6_fck"),
+	DT_CLK(NULL, "gpt7_ick", "gpt7_ick"),
+	DT_CLK(NULL, "gpt7_fck", "gpt7_fck"),
+	DT_CLK(NULL, "gpt8_ick", "gpt8_ick"),
+	DT_CLK(NULL, "gpt8_fck", "gpt8_fck"),
+	DT_CLK(NULL, "gpt9_ick", "gpt9_ick"),
+	DT_CLK(NULL, "gpt9_fck", "gpt9_fck"),
+	DT_CLK(NULL, "gpt10_ick", "gpt10_ick"),
+	DT_CLK(NULL, "gpt10_fck", "gpt10_fck"),
+	DT_CLK(NULL, "gpt11_ick", "gpt11_ick"),
+	DT_CLK(NULL, "gpt11_fck", "gpt11_fck"),
+	DT_CLK(NULL, "gpt12_ick", "gpt12_ick"),
+	DT_CLK(NULL, "gpt12_fck", "gpt12_fck"),
+	DT_CLK("omap-mcbsp.1", "ick", "mcbsp1_ick"),
+	DT_CLK(NULL, "mcbsp1_ick", "mcbsp1_ick"),
+	DT_CLK(NULL, "mcbsp1_fck", "mcbsp1_fck"),
+	DT_CLK("omap-mcbsp.2", "ick", "mcbsp2_ick"),
+	DT_CLK(NULL, "mcbsp2_ick", "mcbsp2_ick"),
+	DT_CLK(NULL, "mcbsp2_fck", "mcbsp2_fck"),
+	DT_CLK("omap2_mcspi.1", "ick", "mcspi1_ick"),
+	DT_CLK(NULL, "mcspi1_ick", "mcspi1_ick"),
+	DT_CLK(NULL, "mcspi1_fck", "mcspi1_fck"),
+	DT_CLK("omap2_mcspi.2", "ick", "mcspi2_ick"),
+	DT_CLK(NULL, "mcspi2_ick", "mcspi2_ick"),
+	DT_CLK(NULL, "mcspi2_fck", "mcspi2_fck"),
+	DT_CLK(NULL, "uart1_ick", "uart1_ick"),
+	DT_CLK(NULL, "uart1_fck", "uart1_fck"),
+	DT_CLK(NULL, "uart2_ick", "uart2_ick"),
+	DT_CLK(NULL, "uart2_fck", "uart2_fck"),
+	DT_CLK(NULL, "uart3_ick", "uart3_ick"),
+	DT_CLK(NULL, "uart3_fck", "uart3_fck"),
+	DT_CLK(NULL, "gpios_ick", "gpios_ick"),
+	DT_CLK(NULL, "gpios_fck", "gpios_fck"),
+	DT_CLK("omap_wdt", "ick", "mpu_wdt_ick"),
+	DT_CLK(NULL, "mpu_wdt_ick", "mpu_wdt_ick"),
+	DT_CLK(NULL, "mpu_wdt_fck", "mpu_wdt_fck"),
+	DT_CLK(NULL, "sync_32k_ick", "sync_32k_ick"),
+	DT_CLK(NULL, "wdt1_ick", "wdt1_ick"),
+	DT_CLK(NULL, "omapctrl_ick", "omapctrl_ick"),
+	DT_CLK("omap24xxcam", "fck", "cam_fck"),
+	DT_CLK(NULL, "cam_fck", "cam_fck"),
+	DT_CLK("omap24xxcam", "ick", "cam_ick"),
+	DT_CLK(NULL, "cam_ick", "cam_ick"),
+	DT_CLK(NULL, "mailboxes_ick", "mailboxes_ick"),
+	DT_CLK(NULL, "wdt4_ick", "wdt4_ick"),
+	DT_CLK(NULL, "wdt4_fck", "wdt4_fck"),
+	DT_CLK(NULL, "mspro_ick", "mspro_ick"),
+	DT_CLK(NULL, "mspro_fck", "mspro_fck"),
+	DT_CLK(NULL, "fac_ick", "fac_ick"),
+	DT_CLK(NULL, "fac_fck", "fac_fck"),
+	DT_CLK("omap_hdq.0", "ick", "hdq_ick"),
+	DT_CLK(NULL, "hdq_ick", "hdq_ick"),
+	DT_CLK("omap_hdq.0", "fck", "hdq_fck"),
+	DT_CLK(NULL, "hdq_fck", "hdq_fck"),
+	DT_CLK("omap_i2c.1", "ick", "i2c1_ick"),
+	DT_CLK(NULL, "i2c1_ick", "i2c1_ick"),
+	DT_CLK("omap_i2c.2", "ick", "i2c2_ick"),
+	DT_CLK(NULL, "i2c2_ick", "i2c2_ick"),
+	DT_CLK(NULL, "gpmc_fck", "gpmc_fck"),
+	DT_CLK(NULL, "sdma_fck", "sdma_fck"),
+	DT_CLK(NULL, "sdma_ick", "sdma_ick"),
+	DT_CLK(NULL, "sdrc_ick", "sdrc_ick"),
+	DT_CLK(NULL, "des_ick", "des_ick"),
+	DT_CLK("omap-sham", "ick", "sha_ick"),
+	DT_CLK(NULL, "sha_ick", "sha_ick"),
+	DT_CLK("omap_rng", "ick", "rng_ick"),
+	DT_CLK(NULL, "rng_ick", "rng_ick"),
+	DT_CLK("omap-aes", "ick", "aes_ick"),
+	DT_CLK(NULL, "aes_ick", "aes_ick"),
+	DT_CLK(NULL, "pka_ick", "pka_ick"),
+	DT_CLK(NULL, "usb_fck", "usb_fck"),
+	DT_CLK(NULL, "timer_32k_ck", "func_32k_ck"),
+	DT_CLK(NULL, "timer_sys_ck", "sys_ck"),
+	DT_CLK(NULL, "timer_ext_ck", "alt_ck"),
+	{ .node_name = NULL },
+};
+
+static struct ti_dt_clk omap2420_clks[] = {
+	DT_CLK(NULL, "sys_clkout2_src", "sys_clkout2_src"),
+	DT_CLK(NULL, "sys_clkout2", "sys_clkout2"),
+	DT_CLK(NULL, "dsp_ick", "dsp_ick"),
+	DT_CLK(NULL, "iva1_ifck", "iva1_ifck"),
+	DT_CLK(NULL, "iva1_mpu_int_ifck", "iva1_mpu_int_ifck"),
+	DT_CLK(NULL, "wdt3_ick", "wdt3_ick"),
+	DT_CLK(NULL, "wdt3_fck", "wdt3_fck"),
+	DT_CLK("mmci-omap.0", "ick", "mmc_ick"),
+	DT_CLK(NULL, "mmc_ick", "mmc_ick"),
+	DT_CLK("mmci-omap.0", "fck", "mmc_fck"),
+	DT_CLK(NULL, "mmc_fck", "mmc_fck"),
+	DT_CLK(NULL, "eac_ick", "eac_ick"),
+	DT_CLK(NULL, "eac_fck", "eac_fck"),
+	DT_CLK(NULL, "i2c1_fck", "i2c1_fck"),
+	DT_CLK(NULL, "i2c2_fck", "i2c2_fck"),
+	DT_CLK(NULL, "vlynq_ick", "vlynq_ick"),
+	DT_CLK(NULL, "vlynq_fck", "vlynq_fck"),
+	DT_CLK("musb-hdrc", "fck", "osc_ck"),
+	{ .node_name = NULL },
+};
+
+static struct ti_dt_clk omap2430_clks[] = {
+	DT_CLK("twl", "fck", "osc_ck"),
+	DT_CLK(NULL, "iva2_1_ick", "iva2_1_ick"),
+	DT_CLK(NULL, "mdm_ick", "mdm_ick"),
+	DT_CLK(NULL, "mdm_osc_ck", "mdm_osc_ck"),
+	DT_CLK("omap-mcbsp.3", "ick", "mcbsp3_ick"),
+	DT_CLK(NULL, "mcbsp3_ick", "mcbsp3_ick"),
+	DT_CLK(NULL, "mcbsp3_fck", "mcbsp3_fck"),
+	DT_CLK("omap-mcbsp.4", "ick", "mcbsp4_ick"),
+	DT_CLK(NULL, "mcbsp4_ick", "mcbsp4_ick"),
+	DT_CLK(NULL, "mcbsp4_fck", "mcbsp4_fck"),
+	DT_CLK("omap-mcbsp.5", "ick", "mcbsp5_ick"),
+	DT_CLK(NULL, "mcbsp5_ick", "mcbsp5_ick"),
+	DT_CLK(NULL, "mcbsp5_fck", "mcbsp5_fck"),
+	DT_CLK("omap2_mcspi.3", "ick", "mcspi3_ick"),
+	DT_CLK(NULL, "mcspi3_ick", "mcspi3_ick"),
+	DT_CLK(NULL, "mcspi3_fck", "mcspi3_fck"),
+	DT_CLK(NULL, "icr_ick", "icr_ick"),
+	DT_CLK(NULL, "i2chs1_fck", "i2chs1_fck"),
+	DT_CLK(NULL, "i2chs2_fck", "i2chs2_fck"),
+	DT_CLK("musb-omap2430", "ick", "usbhs_ick"),
+	DT_CLK(NULL, "usbhs_ick", "usbhs_ick"),
+	DT_CLK("omap_hsmmc.0", "ick", "mmchs1_ick"),
+	DT_CLK(NULL, "mmchs1_ick", "mmchs1_ick"),
+	DT_CLK(NULL, "mmchs1_fck", "mmchs1_fck"),
+	DT_CLK("omap_hsmmc.1", "ick", "mmchs2_ick"),
+	DT_CLK(NULL, "mmchs2_ick", "mmchs2_ick"),
+	DT_CLK(NULL, "mmchs2_fck", "mmchs2_fck"),
+	DT_CLK(NULL, "gpio5_ick", "gpio5_ick"),
+	DT_CLK(NULL, "gpio5_fck", "gpio5_fck"),
+	DT_CLK(NULL, "mdm_intc_ick", "mdm_intc_ick"),
+	DT_CLK("omap_hsmmc.0", "mmchsdb_fck", "mmchsdb1_fck"),
+	DT_CLK(NULL, "mmchsdb1_fck", "mmchsdb1_fck"),
+	DT_CLK("omap_hsmmc.1", "mmchsdb_fck", "mmchsdb2_fck"),
+	DT_CLK(NULL, "mmchsdb2_fck", "mmchsdb2_fck"),
+	{ .node_name = NULL },
+};
+
+static const char *enable_init_clks[] = {
+	"apll96_ck",
+	"apll54_ck",
+	"sync_32k_ick",
+	"omapctrl_ick",
+	"gpmc_fck",
+	"sdrc_ick",
+};
+
+enum {
+	OMAP2_SOC_OMAP2420,
+	OMAP2_SOC_OMAP2430,
+};
+
+static int __init omap2xxx_dt_clk_init(int soc_type)
+{
+	ti_dt_clocks_register(omap2xxx_clks);
+
+	if (soc_type == OMAP2_SOC_OMAP2420)
+		ti_dt_clocks_register(omap2420_clks);
+	else
+		ti_dt_clocks_register(omap2430_clks);
+
+	omap2_clk_disable_autoidle_all();
+
+	omap2_clk_enable_init_clocks(enable_init_clks,
+				     ARRAY_SIZE(enable_init_clks));
+
+	pr_info("Clocking rate (Crystal/DPLL/MPU): %ld.%01ld/%ld/%ld MHz\n",
+		(clk_get_rate(clk_get_sys(NULL, "sys_ck")) / 1000000),
+		(clk_get_rate(clk_get_sys(NULL, "sys_ck")) / 100000) % 10,
+		(clk_get_rate(clk_get_sys(NULL, "dpll_ck")) / 1000000),
+		(clk_get_rate(clk_get_sys(NULL, "mpu_ck")) / 1000000));
+
+	return 0;
+}
+
+int __init omap2420_dt_clk_init(void)
+{
+	return omap2xxx_dt_clk_init(OMAP2_SOC_OMAP2420);
+}
+
+int __init omap2430_dt_clk_init(void)
+{
+	return omap2xxx_dt_clk_init(OMAP2_SOC_OMAP2430);
+}
diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h
index a8390d478528..188f0cbb26c2 100644
--- a/include/linux/clk/ti.h
+++ b/include/linux/clk/ti.h
@@ -302,6 +302,8 @@ int omap5xxx_dt_clk_init(void);
 int dra7xx_dt_clk_init(void);
 int am33xx_dt_clk_init(void);
 int am43xx_dt_clk_init(void);
+int omap2420_dt_clk_init(void);
+int omap2430_dt_clk_init(void);
 
 #ifdef CONFIG_OF
 void of_ti_clk_allow_autoidle_all(void);
-- 
cgit 


From 61f25ca76ccc7b63371a7a6b0b8b9a8a46745b79 Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Mon, 24 Feb 2014 18:49:35 +0200
Subject: ARM: OMAP2: clock: add DT boot support for cpufreq_ck

The clock and clkdev for this are added manually.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c | 53 ++++++++++++++++++++++++++++
 drivers/clk/ti/clk-2xxx.c                    |  2 ++
 include/linux/clk/ti.h                       |  1 +
 3 files changed, 56 insertions(+)

(limited to 'include/linux/clk')

diff --git a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
index b935ed2922d8..85e0b0c06718 100644
--- a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
+++ b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
@@ -208,3 +208,56 @@ void omap2xxx_clkt_vps_late_init(void)
 		clk_put(c);
 	}
 }
+
+#ifdef CONFIG_OF
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+
+static const struct clk_ops virt_prcm_set_ops = {
+	.recalc_rate	= &omap2_table_mpu_recalc,
+	.set_rate	= &omap2_select_table_rate,
+	.round_rate	= &omap2_round_to_table_rate,
+};
+
+/**
+ * omap2xxx_clkt_vps_init - initialize virt_prcm_set clock
+ *
+ * Does a manual init for the virtual prcm DVFS clock for OMAP2. This
+ * function is called only from omap2 DT clock init, as the virtual
+ * node is not modelled in the DT clock data.
+ */
+void omap2xxx_clkt_vps_init(void)
+{
+	struct clk_init_data init = { NULL };
+	struct clk_hw_omap *hw = NULL;
+	struct clk *clk;
+	const char *parent_name = "mpu_ck";
+	struct clk_lookup *lookup = NULL;
+
+	omap2xxx_clkt_vps_late_init();
+	omap2xxx_clkt_vps_check_bootloader_rates();
+
+	hw = kzalloc(sizeof(*hw), GFP_KERNEL);
+	lookup = kzalloc(sizeof(*lookup), GFP_KERNEL);
+	if (!hw || !lookup)
+		goto cleanup;
+	init.name = "virt_prcm_set";
+	init.ops = &virt_prcm_set_ops;
+	init.parent_names = &parent_name;
+	init.num_parents = 1;
+
+	hw->hw.init = &init;
+
+	clk = clk_register(NULL, &hw->hw);
+
+	lookup->dev_id = NULL;
+	lookup->con_id = "cpufreq_ck";
+	lookup->clk = clk;
+
+	clkdev_add(lookup);
+	return;
+cleanup:
+	kfree(hw);
+	kfree(lookup);
+}
+#endif
diff --git a/drivers/clk/ti/clk-2xxx.c b/drivers/clk/ti/clk-2xxx.c
index f6400fb5ee3e..c808ab3d2bb2 100644
--- a/drivers/clk/ti/clk-2xxx.c
+++ b/drivers/clk/ti/clk-2xxx.c
@@ -229,6 +229,8 @@ static int __init omap2xxx_dt_clk_init(int soc_type)
 	else
 		ti_dt_clocks_register(omap2430_clks);
 
+	omap2xxx_clkt_vps_init();
+
 	omap2_clk_disable_autoidle_all();
 
 	omap2_clk_enable_init_clocks(enable_init_clks,
diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h
index 188f0cbb26c2..4231c41bed51 100644
--- a/include/linux/clk/ti.h
+++ b/include/linux/clk/ti.h
@@ -283,6 +283,7 @@ unsigned long omap2_dpllcore_recalc(struct clk_hw *hw,
 int omap2_reprogram_dpllcore(struct clk_hw *clk, unsigned long rate,
 			     unsigned long parent_rate);
 void omap2xxx_clkt_dpllcore_init(struct clk_hw *hw);
+void omap2xxx_clkt_vps_init(void);
 
 void __iomem *ti_clk_get_reg_addr(struct device_node *node, int index);
 void ti_dt_clocks_register(struct ti_dt_clk *oclks);
-- 
cgit 


From ce369a545aac3da653dd95d8117093a862bf94d3 Mon Sep 17 00:00:00 2001
From: Andrii Tseglytskyi <andrii.tseglytskyi@ti.com>
Date: Fri, 16 May 2014 05:45:58 -0500
Subject: ARM: OMAP5+: dpll: support Duty Cycle Correction(DCC)

Duty Cycle Correction(DCC) needs to be enabled if the MPU is to run at
frequencies beyond 1.4GHz for OMAP5, DRA75x, DRA72x.

MPU DPLL has a limitation on the maximum frequency it can be locked
at. Duty Cycle Correction circuit is used to recover a correct duty
cycle for achieving higher frequencies (hardware internally switches
output to M3 output(CLKOUTHIF) from M2 output (CLKOUT)).

For further information, See the note on OMAP5432 Technical Reference
Manual(SWPU282U) chapter 3.6.3.3.1 "DPLLs Output Clocks Parameters",
and also the "OMAP543x ES2.0 DM Operating Conditions Addendum v0.5"
chapter 2.1 "Micro Processor Unit (MPU)". Equivalent information is
present in relevant DRA75x, 72x documentation(SPRUHP2E, SPRUHI2P).

Signed-off-by: Andrii Tseglytskyi <andrii.tseglytskyi@ti.com>
Signed-off-by: Taras Kondratiuk <taras@ti.com>
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
[t-kristo@ti.com: added TRM / DM references for DCC clock rate]
Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/dpll3xxx.c | 9 +++++++++
 include/linux/clk/ti.h         | 4 ++++
 2 files changed, 13 insertions(+)

(limited to 'include/linux/clk')

diff --git a/arch/arm/mach-omap2/dpll3xxx.c b/arch/arm/mach-omap2/dpll3xxx.c
index fcd8036af910..6d7ba37e2257 100644
--- a/arch/arm/mach-omap2/dpll3xxx.c
+++ b/arch/arm/mach-omap2/dpll3xxx.c
@@ -319,6 +319,15 @@ static int omap3_noncore_dpll_program(struct clk_hw_omap *clk, u16 freqsel)
 
 	/* Set DPLL multiplier, divider */
 	v = omap2_clk_readl(clk, dd->mult_div1_reg);
+
+	/* Handle Duty Cycle Correction */
+	if (dd->dcc_mask) {
+		if (dd->last_rounded_rate >= dd->dcc_rate)
+			v |= dd->dcc_mask; /* Enable DCC */
+		else
+			v &= ~dd->dcc_mask; /* Disable DCC */
+	}
+
 	v &= ~(dd->mult_mask | dd->div1_mask);
 	v |= dd->last_rounded_m << __ffs(dd->mult_mask);
 	v |= (dd->last_rounded_n - 1) << __ffs(dd->div1_mask);
diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h
index 4231c41bed51..e8d8a35034a5 100644
--- a/include/linux/clk/ti.h
+++ b/include/linux/clk/ti.h
@@ -41,6 +41,8 @@
  * @idlest_reg: register containing the DPLL idle status bitfield
  * @autoidle_mask: mask of the DPLL autoidle mode bitfield in @autoidle_reg
  * @freqsel_mask: mask of the DPLL jitter correction bitfield in @control_reg
+ * @dcc_mask: mask of the DPLL DCC correction bitfield @mult_div1_reg
+ * @dcc_rate: rate atleast which DCC @dcc_mask must be set
  * @idlest_mask: mask of the DPLL idle status bitfield in @idlest_reg
  * @lpmode_mask: mask of the DPLL low-power mode bitfield in @control_reg
  * @m4xen_mask: mask of the DPLL M4X multiplier bitfield in @control_reg
@@ -86,6 +88,8 @@ struct dpll_data {
 	u32			idlest_mask;
 	u32			dco_mask;
 	u32			sddiv_mask;
+	u32			dcc_mask;
+	unsigned long		dcc_rate;
 	u32			lpmode_mask;
 	u32			m4xen_mask;
 	u8			auto_recal_bit;
-- 
cgit