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-rw-r--r--arch/arm/mach-imx/Makefile2
-rw-r--r--arch/arm/mach-imx/clk-pllv1.c2
-rw-r--r--arch/arm/mach-imx/clk.c3
-rw-r--r--arch/arm/mach-imx/clk.h3
-rw-r--r--arch/arm/mach-imx/mach-kzm_arm11_01.c1
-rw-r--r--arch/arm/plat-mxc/Makefile2
-rw-r--r--arch/arm/plat-mxc/clock.c212
-rw-r--r--arch/arm/plat-mxc/cpufreq.c1
-rw-r--r--arch/arm/plat-mxc/include/mach/clock.h68
9 files changed, 8 insertions, 286 deletions
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index 07f7c226e4c..e407d928508 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -12,7 +12,7 @@ obj-$(CONFIG_SOC_IMX35) += mm-imx3.o cpu-imx35.o clk-imx35.o ehci-imx35.o pm-imx
12obj-$(CONFIG_SOC_IMX5) += cpu-imx5.o mm-imx5.o clk-imx51-imx53.o ehci-imx5.o pm-imx5.o cpu_op-mx51.o 12obj-$(CONFIG_SOC_IMX5) += cpu-imx5.o mm-imx5.o clk-imx51-imx53.o ehci-imx5.o pm-imx5.o cpu_op-mx51.o
13 13
14obj-$(CONFIG_COMMON_CLK) += clk-pllv1.o clk-pllv2.o clk-pllv3.o clk-gate2.o \ 14obj-$(CONFIG_COMMON_CLK) += clk-pllv1.o clk-pllv2.o clk-pllv3.o clk-gate2.o \
15 clk-pfd.o clk-busy.o 15 clk-pfd.o clk-busy.o clk.o
16 16
17# Support for CMOS sensor interface 17# Support for CMOS sensor interface
18obj-$(CONFIG_MX1_VIDEO) += mx1-camera-fiq.o mx1-camera-fiq-ksym.o 18obj-$(CONFIG_MX1_VIDEO) += mx1-camera-fiq.o mx1-camera-fiq-ksym.o
diff --git a/arch/arm/mach-imx/clk-pllv1.c b/arch/arm/mach-imx/clk-pllv1.c
index 4a03c936093..02be7317891 100644
--- a/arch/arm/mach-imx/clk-pllv1.c
+++ b/arch/arm/mach-imx/clk-pllv1.c
@@ -6,7 +6,7 @@
6#include <linux/err.h> 6#include <linux/err.h>
7#include <mach/common.h> 7#include <mach/common.h>
8#include <mach/hardware.h> 8#include <mach/hardware.h>
9#include <mach/clock.h> 9
10#include "clk.h" 10#include "clk.h"
11 11
12/** 12/**
diff --git a/arch/arm/mach-imx/clk.c b/arch/arm/mach-imx/clk.c
new file mode 100644
index 00000000000..f5e8be8e7f1
--- /dev/null
+++ b/arch/arm/mach-imx/clk.c
@@ -0,0 +1,3 @@
1#include <linux/spinlock.h>
2
3DEFINE_SPINLOCK(imx_ccm_lock);
diff --git a/arch/arm/mach-imx/clk.h b/arch/arm/mach-imx/clk.h
index 1bf64fe2523..5f2d8acca25 100644
--- a/arch/arm/mach-imx/clk.h
+++ b/arch/arm/mach-imx/clk.h
@@ -3,7 +3,8 @@
3 3
4#include <linux/spinlock.h> 4#include <linux/spinlock.h>
5#include <linux/clk-provider.h> 5#include <linux/clk-provider.h>
6#include <mach/clock.h> 6
7extern spinlock_t imx_ccm_lock;
7 8
8struct clk *imx_clk_pllv1(const char *name, const char *parent, 9struct clk *imx_clk_pllv1(const char *name, const char *parent,
9 void __iomem *base); 10 void __iomem *base);
diff --git a/arch/arm/mach-imx/mach-kzm_arm11_01.c b/arch/arm/mach-imx/mach-kzm_arm11_01.c
index 5d08533ab2c..8dc9d3edf17 100644
--- a/arch/arm/mach-imx/mach-kzm_arm11_01.c
+++ b/arch/arm/mach-imx/mach-kzm_arm11_01.c
@@ -36,7 +36,6 @@
36#include <asm/mach/map.h> 36#include <asm/mach/map.h>
37#include <asm/mach/time.h> 37#include <asm/mach/time.h>
38 38
39#include <mach/clock.h>
40#include <mach/common.h> 39#include <mach/common.h>
41#include <mach/hardware.h> 40#include <mach/hardware.h>
42#include <mach/iomux-mx3.h> 41#include <mach/iomux-mx3.h>
diff --git a/arch/arm/plat-mxc/Makefile b/arch/arm/plat-mxc/Makefile
index 6ac72003115..149237e2485 100644
--- a/arch/arm/plat-mxc/Makefile
+++ b/arch/arm/plat-mxc/Makefile
@@ -3,7 +3,7 @@
3# 3#
4 4
5# Common support 5# Common support
6obj-y := clock.o time.o devices.o cpu.o system.o irq-common.o 6obj-y := time.o devices.o cpu.o system.o irq-common.o
7 7
8obj-$(CONFIG_MXC_TZIC) += tzic.o 8obj-$(CONFIG_MXC_TZIC) += tzic.o
9obj-$(CONFIG_MXC_AVIC) += avic.o 9obj-$(CONFIG_MXC_AVIC) += avic.o
diff --git a/arch/arm/plat-mxc/clock.c b/arch/arm/plat-mxc/clock.c
deleted file mode 100644
index 0ed09549468..00000000000
--- a/arch/arm/plat-mxc/clock.c
+++ /dev/null
@@ -1,212 +0,0 @@
1/*
2 * Based on arch/arm/plat-omap/clock.c
3 *
4 * Copyright (C) 2004 - 2005 Nokia corporation
5 * Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
6 * Modified for omap shared clock framework by Tony Lindgren <tony@atomide.com>
7 * Copyright 2007 Freescale Semiconductor, Inc. All Rights Reserved.
8 * Copyright 2008 Juergen Beisert, kernel@pengutronix.de
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
22 * MA 02110-1301, USA.
23 */
24
25/* #define DEBUG */
26
27#include <linux/clk.h>
28#include <linux/err.h>
29#include <linux/errno.h>
30#include <linux/init.h>
31#include <linux/io.h>
32#include <linux/kernel.h>
33#include <linux/list.h>
34#include <linux/module.h>
35#include <linux/mutex.h>
36#include <linux/platform_device.h>
37#include <linux/proc_fs.h>
38#include <linux/semaphore.h>
39#include <linux/string.h>
40
41#include <mach/clock.h>
42#include <mach/hardware.h>
43
44#ifndef CONFIG_COMMON_CLK
45static LIST_HEAD(clocks);
46static DEFINE_MUTEX(clocks_mutex);
47
48/*-------------------------------------------------------------------------
49 * Standard clock functions defined in include/linux/clk.h
50 *-------------------------------------------------------------------------*/
51
52static void __clk_disable(struct clk *clk)
53{
54 if (clk == NULL || IS_ERR(clk))
55 return;
56 WARN_ON(!clk->usecount);
57
58 if (!(--clk->usecount)) {
59 if (clk->disable)
60 clk->disable(clk);
61 __clk_disable(clk->parent);
62 __clk_disable(clk->secondary);
63 }
64}
65
66static int __clk_enable(struct clk *clk)
67{
68 if (clk == NULL || IS_ERR(clk))
69 return -EINVAL;
70
71 if (clk->usecount++ == 0) {
72 __clk_enable(clk->parent);
73 __clk_enable(clk->secondary);
74
75 if (clk->enable)
76 clk->enable(clk);
77 }
78 return 0;
79}
80
81/* This function increments the reference count on the clock and enables the
82 * clock if not already enabled. The parent clock tree is recursively enabled
83 */
84int clk_enable(struct clk *clk)
85{
86 int ret = 0;
87
88 if (clk == NULL || IS_ERR(clk))
89 return -EINVAL;
90
91 mutex_lock(&clocks_mutex);
92 ret = __clk_enable(clk);
93 mutex_unlock(&clocks_mutex);
94
95 return ret;
96}
97EXPORT_SYMBOL(clk_enable);
98
99/* This function decrements the reference count on the clock and disables
100 * the clock when reference count is 0. The parent clock tree is
101 * recursively disabled
102 */
103void clk_disable(struct clk *clk)
104{
105 if (clk == NULL || IS_ERR(clk))
106 return;
107
108 mutex_lock(&clocks_mutex);
109 __clk_disable(clk);
110 mutex_unlock(&clocks_mutex);
111}
112EXPORT_SYMBOL(clk_disable);
113
114/* Retrieve the *current* clock rate. If the clock itself
115 * does not provide a special calculation routine, ask
116 * its parent and so on, until one is able to return
117 * a valid clock rate
118 */
119unsigned long clk_get_rate(struct clk *clk)
120{
121 if (clk == NULL || IS_ERR(clk))
122 return 0UL;
123
124 if (clk->get_rate)
125 return clk->get_rate(clk);
126
127 return clk_get_rate(clk->parent);
128}
129EXPORT_SYMBOL(clk_get_rate);
130
131/* Round the requested clock rate to the nearest supported
132 * rate that is less than or equal to the requested rate.
133 * This is dependent on the clock's current parent.
134 */
135long clk_round_rate(struct clk *clk, unsigned long rate)
136{
137 if (clk == NULL || IS_ERR(clk) || !clk->round_rate)
138 return 0;
139
140 return clk->round_rate(clk, rate);
141}
142EXPORT_SYMBOL(clk_round_rate);
143
144/* Set the clock to the requested clock rate. The rate must
145 * match a supported rate exactly based on what clk_round_rate returns
146 */
147int clk_set_rate(struct clk *clk, unsigned long rate)
148{
149 int ret = -EINVAL;
150
151 if (clk == NULL || IS_ERR(clk) || clk->set_rate == NULL || rate == 0)
152 return ret;
153
154 mutex_lock(&clocks_mutex);
155 ret = clk->set_rate(clk, rate);
156 mutex_unlock(&clocks_mutex);
157
158 return ret;
159}
160EXPORT_SYMBOL(clk_set_rate);
161
162/* Set the clock's parent to another clock source */
163int clk_set_parent(struct clk *clk, struct clk *parent)
164{
165 int ret = -EINVAL;
166 struct clk *old;
167
168 if (clk == NULL || IS_ERR(clk) || parent == NULL ||
169 IS_ERR(parent) || clk->set_parent == NULL)
170 return ret;
171
172 if (clk->usecount)
173 clk_enable(parent);
174
175 mutex_lock(&clocks_mutex);
176 ret = clk->set_parent(clk, parent);
177 if (ret == 0) {
178 old = clk->parent;
179 clk->parent = parent;
180 } else {
181 old = parent;
182 }
183 mutex_unlock(&clocks_mutex);
184
185 if (clk->usecount)
186 clk_disable(old);
187
188 return ret;
189}
190EXPORT_SYMBOL(clk_set_parent);
191
192/* Retrieve the clock's parent clock source */
193struct clk *clk_get_parent(struct clk *clk)
194{
195 struct clk *ret = NULL;
196
197 if (clk == NULL || IS_ERR(clk))
198 return ret;
199
200 return clk->parent;
201}
202EXPORT_SYMBOL(clk_get_parent);
203
204#else
205
206/*
207 * Lock to protect the clock module (ccm) registers. Used
208 * on all i.MXs
209 */
210DEFINE_SPINLOCK(imx_ccm_lock);
211
212#endif /* CONFIG_COMMON_CLK */
diff --git a/arch/arm/plat-mxc/cpufreq.c b/arch/arm/plat-mxc/cpufreq.c
index 73db34bf588..b5b6f808313 100644
--- a/arch/arm/plat-mxc/cpufreq.c
+++ b/arch/arm/plat-mxc/cpufreq.c
@@ -23,7 +23,6 @@
23#include <linux/err.h> 23#include <linux/err.h>
24#include <linux/slab.h> 24#include <linux/slab.h>
25#include <mach/hardware.h> 25#include <mach/hardware.h>
26#include <mach/clock.h>
27 26
28#define CLK32_FREQ 32768 27#define CLK32_FREQ 32768
29#define NANOSECOND (1000 * 1000 * 1000) 28#define NANOSECOND (1000 * 1000 * 1000)
diff --git a/arch/arm/plat-mxc/include/mach/clock.h b/arch/arm/plat-mxc/include/mach/clock.h
deleted file mode 100644
index 0c4ad776f72..00000000000
--- a/arch/arm/plat-mxc/include/mach/clock.h
+++ /dev/null
@@ -1,68 +0,0 @@
1/*
2 * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
3 * Copyright 2008 Juergen Beisert, kernel@pengutronix.de
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
17 * MA 02110-1301, USA.
18 */
19
20#ifndef __ASM_ARCH_MXC_CLOCK_H__
21#define __ASM_ARCH_MXC_CLOCK_H__
22
23#ifndef __ASSEMBLY__
24#include <linux/list.h>
25
26#ifndef CONFIG_COMMON_CLK
27struct module;
28
29struct clk {
30 int id;
31 /* Source clock this clk depends on */
32 struct clk *parent;
33 /* Secondary clock to enable/disable with this clock */
34 struct clk *secondary;
35 /* Reference count of clock enable/disable */
36 __s8 usecount;
37 /* Register bit position for clock's enable/disable control. */
38 u8 enable_shift;
39 /* Register address for clock's enable/disable control. */
40 void __iomem *enable_reg;
41 u32 flags;
42 /* get the current clock rate (always a fresh value) */
43 unsigned long (*get_rate) (struct clk *);
44 /* Function ptr to set the clock to a new rate. The rate must match a
45 supported rate returned from round_rate. Leave blank if clock is not
46 programmable */
47 int (*set_rate) (struct clk *, unsigned long);
48 /* Function ptr to round the requested clock rate to the nearest
49 supported rate that is less than or equal to the requested rate. */
50 unsigned long (*round_rate) (struct clk *, unsigned long);
51 /* Function ptr to enable the clock. Leave blank if clock can not
52 be gated. */
53 int (*enable) (struct clk *);
54 /* Function ptr to disable the clock. Leave blank if clock can not
55 be gated. */
56 void (*disable) (struct clk *);
57 /* Function ptr to set the parent clock of the clock. */
58 int (*set_parent) (struct clk *, struct clk *);
59};
60
61int clk_register(struct clk *clk);
62void clk_unregister(struct clk *clk);
63#endif /* CONFIG_COMMON_CLK */
64
65extern spinlock_t imx_ccm_lock;
66
67#endif /* __ASSEMBLY__ */
68#endif /* __ASM_ARCH_MXC_CLOCK_H__ */
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-19 09:38:43 -0400