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ARM: mach-shmobile: Use shared clock framework

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Teach SH-Mobile ARM how to make use of the shared SH clock
framework. This commit is one atomic switch that dumps the
local hackery and instead links in the shared clock framework
code in drivers/sh. A few local functions are kept in clock.c.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Magnus Damm 2010-05-12 14:21:24 +00:00 committed by Paul Mundt
parent 645e522ee0
commit e47bb515c5
6 changed files with 54 additions and 38 deletions
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3
arch/arm/mach-shmobile/Kconfig
View File

@ -84,4 +84,7 @@ config SH_TIMER_TMU
endmenu
config SH_CLK_CPG
bool
endif

2
arch/arm/mach-shmobile/Makefile
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@ -3,7 +3,7 @@
#
# Common objects
obj-y := timer.o console.o
obj-y := timer.o console.o clock.o
# CPU objects
obj-$(CONFIG_ARCH_SH7367) += setup-sh7367.o clock-sh7367.o intc-sh7367.o

36
arch/arm/mach-shmobile/clock-sh7367.c
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@ -21,43 +21,9 @@
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/clk.h>
struct clk {
const char *name;
unsigned long rate;
};
#include <linux/sh_clk.h>
#include <asm/clkdev.h>
int __clk_get(struct clk *clk)
{
return 1;
}
EXPORT_SYMBOL(__clk_get);
void __clk_put(struct clk *clk)
{
}
EXPORT_SYMBOL(__clk_put);
int clk_enable(struct clk *clk)
{
return 0;
}
EXPORT_SYMBOL(clk_enable);
void clk_disable(struct clk *clk)
{
}
EXPORT_SYMBOL(clk_disable);
unsigned long clk_get_rate(struct clk *clk)
{
return clk ? clk->rate : 0;
}
EXPORT_SYMBOL(clk_get_rate);
/* a static peripheral clock for now - enough to get sh-sci working */
static struct clk peripheral_clk = {
.name = "peripheral_clk",

44
arch/arm/mach-shmobile/clock.c Normal file
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@ -0,0 +1,44 @@
/*
* SH-Mobile Timer
*
* Copyright (C) 2010 Magnus Damm
*
* 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.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/sh_clk.h>
int __init clk_init(void)
{
/* Kick the child clocks.. */
recalculate_root_clocks();
/* Enable the necessary init clocks */
clk_enable_init_clocks();
return 0;
}
int __clk_get(struct clk *clk)
{
return 1;
}
EXPORT_SYMBOL(__clk_get);
void __clk_put(struct clk *clk)
{
}
EXPORT_SYMBOL(__clk_put);

2
arch/arm/mach-shmobile/include/mach/common.h
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@ -4,6 +4,8 @@
extern struct sys_timer shmobile_timer;
extern void shmobile_setup_console(void);
extern int clk_init(void);
extern void sh7367_init_irq(void);
extern void sh7367_add_early_devices(void);
extern void sh7367_add_standard_devices(void);

5
drivers/sh/Makefile
View File

@ -1,9 +1,10 @@
#
# Makefile for the SuperH specific drivers.
#
obj-y := clk.o intc.o
obj-$(CONFIG_SUPERHYWAY) += superhyway/
obj-$(CONFIG_MAPLE) += maple/
obj-$(CONFIG_GENERIC_GPIO) += pfc.o
obj-$(CONFIG_SUPERH) += clk.o
obj-$(CONFIG_SH_CLK_CPG) += clk-cpg.o
obj-y += intc.o