6d803ba736
factorise some generic infrastructure to assist looking up struct clks for the ARM & SH architecture. as the code is identical at 99% put the arch specific code for allocation as example in asm/clkdev.h Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
/*
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* linux/arch/arm/mach-mmp/clock.h
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/clkdev.h>
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struct clkops {
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void (*enable)(struct clk *);
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void (*disable)(struct clk *);
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unsigned long (*getrate)(struct clk *);
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};
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struct clk {
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const struct clkops *ops;
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void __iomem *clk_rst; /* clock reset control register */
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int fnclksel; /* functional clock select (APBC) */
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uint32_t enable_val; /* value for clock enable (APMU) */
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unsigned long rate;
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int enabled;
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};
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extern struct clkops apbc_clk_ops;
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extern struct clkops apmu_clk_ops;
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#define APBC_CLK(_name, _reg, _fnclksel, _rate) \
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struct clk clk_##_name = { \
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.clk_rst = (void __iomem *)APBC_##_reg, \
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.fnclksel = _fnclksel, \
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.rate = _rate, \
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.ops = &apbc_clk_ops, \
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}
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#define APBC_CLK_OPS(_name, _reg, _fnclksel, _rate, _ops) \
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struct clk clk_##_name = { \
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.clk_rst = (void __iomem *)APBC_##_reg, \
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.fnclksel = _fnclksel, \
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.rate = _rate, \
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.ops = _ops, \
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}
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#define APMU_CLK(_name, _reg, _eval, _rate) \
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struct clk clk_##_name = { \
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.clk_rst = (void __iomem *)APMU_##_reg, \
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.enable_val = _eval, \
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.rate = _rate, \
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.ops = &apmu_clk_ops, \
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}
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#define APMU_CLK_OPS(_name, _reg, _eval, _rate, _ops) \
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struct clk clk_##_name = { \
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.clk_rst = (void __iomem *)APMU_##_reg, \
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.enable_val = _eval, \
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.rate = _rate, \
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.ops = _ops, \
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}
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#define INIT_CLKREG(_clk, _devname, _conname) \
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{ \
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.clk = _clk, \
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.dev_id = _devname, \
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.con_id = _conname, \
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}
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extern struct clk clk_pxa168_gpio;
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extern struct clk clk_pxa168_timers;
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