linux/arch/arm/mach-mmp/clock.h
Arnd Bergmann 97b09da4ee ARM: pxa: use correct __iomem annotations
This tries to clear up the confusion between integers and iomem pointers
in the marvell pxa platform. MMIO addresses are supposed to be __iomem*
values, in order to let the Linux type checking work correctly. This
patch moves the cast to __iomem as far back as possible, to the place
where the MMIO virtual address windows are defined.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2011-10-08 21:03:07 +08:00

72 lines
1.7 KiB
C

/*
* linux/arch/arm/mach-mmp/clock.h
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/clkdev.h>
struct clkops {
void (*enable)(struct clk *);
void (*disable)(struct clk *);
unsigned long (*getrate)(struct clk *);
int (*setrate)(struct clk *, unsigned long);
};
struct clk {
const struct clkops *ops;
void __iomem *clk_rst; /* clock reset control register */
int fnclksel; /* functional clock select (APBC) */
uint32_t enable_val; /* value for clock enable (APMU) */
unsigned long rate;
int enabled;
};
extern struct clkops apbc_clk_ops;
extern struct clkops apmu_clk_ops;
#define APBC_CLK(_name, _reg, _fnclksel, _rate) \
struct clk clk_##_name = { \
.clk_rst = APBC_##_reg, \
.fnclksel = _fnclksel, \
.rate = _rate, \
.ops = &apbc_clk_ops, \
}
#define APBC_CLK_OPS(_name, _reg, _fnclksel, _rate, _ops) \
struct clk clk_##_name = { \
.clk_rst = APBC_##_reg, \
.fnclksel = _fnclksel, \
.rate = _rate, \
.ops = _ops, \
}
#define APMU_CLK(_name, _reg, _eval, _rate) \
struct clk clk_##_name = { \
.clk_rst = APMU_##_reg, \
.enable_val = _eval, \
.rate = _rate, \
.ops = &apmu_clk_ops, \
}
#define APMU_CLK_OPS(_name, _reg, _eval, _rate, _ops) \
struct clk clk_##_name = { \
.clk_rst = APMU_##_reg, \
.enable_val = _eval, \
.rate = _rate, \
.ops = _ops, \
}
#define INIT_CLKREG(_clk, _devname, _conname) \
{ \
.clk = _clk, \
.dev_id = _devname, \
.con_id = _conname, \
}
extern struct clk clk_pxa168_gpio;
extern struct clk clk_pxa168_timers;