diff options
| author | Boris BREZILLON <boris.brezillon@free-electrons.com> | 2014-05-07 18:00:08 +0200 |
|---|---|---|
| committer | Nicolas Ferre <nicolas.ferre@atmel.com> | 2014-05-07 18:27:22 +0200 |
| commit | 27cb1c2083373a44130d50d4d2fb64cf7eff2d90 (patch) | |
| tree | 2c1d8688414c8347545d474e309f22d91e23807a /drivers/clk/at91/pmc.h | |
| parent | cf2e933ce6da2a8bacd52e49c4dd4c0974af1d09 (diff) | |
| download | linux-stable-27cb1c2083373a44130d50d4d2fb64cf7eff2d90.tar.gz | |
clk: at91: rework main clk implementation
AT91 main clk is a clk multiplexer and not a simple fixed rate clk as
currently implemented.
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, rm9200 families) the multiplexer source is
hardcoded to the external crystal oscillator.
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/pmc.h')
| -rw-r--r-- | drivers/clk/at91/pmc.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h index 441350983ccb..42cc7cc5e1d3 100644 --- a/drivers/clk/at91/pmc.h +++ b/drivers/clk/at91/pmc.h @@ -58,8 +58,14 @@ static inline void pmc_write(struct at91_pmc *pmc, int offset, u32 value) int of_at91_get_clk_range(struct device_node *np, const char *propname, struct clk_range *range); +extern void __init of_at91rm9200_clk_main_osc_setup(struct device_node *np, + struct at91_pmc *pmc); +extern void __init of_at91sam9x5_clk_main_rc_osc_setup(struct device_node *np, + struct at91_pmc *pmc); extern void __init of_at91rm9200_clk_main_setup(struct device_node *np, struct at91_pmc *pmc); +extern void __init of_at91sam9x5_clk_main_setup(struct device_node *np, + struct at91_pmc *pmc); extern void __init of_at91rm9200_clk_pll_setup(struct device_node *np, struct at91_pmc *pmc); |