diff options
| author | Boris BREZILLON <boris.brezillon@free-electrons.com> | 2014-05-07 18:02:15 +0200 |
|---|---|---|
| committer | Nicolas Ferre <nicolas.ferre@atmel.com> | 2014-05-07 18:27:45 +0200 |
| commit | 80eded6ce8bb8bade60955660c6957d6166c44c1 (patch) | |
| tree | ceb33e9008052db4f868374f5d179e1ff2f24d7c /drivers/clk/at91/sckc.h | |
| parent | f9e1716f919f1bce2749a3ec15f34759ded0a56d (diff) | |
| download | linux-80eded6ce8bb8bade60955660c6957d6166c44c1.tar.bz2 | |
clk: at91: add slow clks driver
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>
Diffstat (limited to 'drivers/clk/at91/sckc.h')
| -rw-r--r-- | drivers/clk/at91/sckc.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/clk/at91/sckc.h b/drivers/clk/at91/sckc.h new file mode 100644 index 000000000000..836fcf59820f --- /dev/null +++ b/drivers/clk/at91/sckc.h @@ -0,0 +1,22 @@ +/* + * drivers/clk/at91/sckc.h + * + * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com> + * + * 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; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef __AT91_SCKC_H_ +#define __AT91_SCKC_H_ + +extern void __init of_at91sam9x5_clk_slow_osc_setup(struct device_node *np, + void __iomem *sckcr); +extern void __init of_at91sam9x5_clk_slow_rc_osc_setup(struct device_node *np, + void __iomem *sckcr); +extern void __init of_at91sam9x5_clk_slow_setup(struct device_node *np, + void __iomem *sckcr); + +#endif /* __AT91_SCKC_H_ */ |