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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>
23 lines
756 B
C
23 lines
756 B
C
/*
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* drivers/clk/at91/sckc.h
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*
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* Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __AT91_SCKC_H_
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#define __AT91_SCKC_H_
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extern void __init of_at91sam9x5_clk_slow_osc_setup(struct device_node *np,
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void __iomem *sckcr);
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extern void __init of_at91sam9x5_clk_slow_rc_osc_setup(struct device_node *np,
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void __iomem *sckcr);
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extern void __init of_at91sam9x5_clk_slow_setup(struct device_node *np,
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void __iomem *sckcr);
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#endif /* __AT91_SCKC_H_ */
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