diff options
| author | Boris BREZILLON <b.brezillon@overkiz.com> | 2013-10-11 13:44:36 +0400 |
|---|---|---|
| committer | Nicolas Ferre <nicolas.ferre@atmel.com> | 2013-12-02 18:31:24 +0400 |
| commit | 6114067e437eb861a8e75741e3d8763475f75512 (patch) | |
| tree | 48afa7cdb1ce6034ec8445def1d5190a77485869 /drivers/clk/at91/pmc.h | |
| parent | 5fba62ea2648f89cbd7f0ed32069f03b179d05e9 (diff) | |
| download | linux-6114067e437eb861a8e75741e3d8763475f75512.tar.xz | |
clk: at91: add PMC peripheral clocks
This patch adds new at91 peripheral clock implementation using common clk
framework.
Almost all peripherals provided by at91 SoCs need a clock to work properly.
This clock is enabled/disabled using PCER/PCDR resgisters.
Each peripheral is given an id (see atmel's datasheets) which is used to
define and reference peripheral clocks.
Some new SoCs (at91sam9x5 and sama5d3) provide a new register (PCR) where you
can configure the peripheral clock as a division of the master clock.
This will help reducing the peripherals power comsumption.
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.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 | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h index 9c8a397cb850..a09212bc6bc9 100644 --- a/drivers/clk/at91/pmc.h +++ b/drivers/clk/at91/pmc.h @@ -80,4 +80,9 @@ extern void __init of_at91sam9x5_clk_master_setup(struct device_node *np, extern void __init of_at91rm9200_clk_sys_setup(struct device_node *np, struct at91_pmc *pmc); +extern void __init of_at91rm9200_clk_periph_setup(struct device_node *np, + struct at91_pmc *pmc); +extern void __init of_at91sam9x5_clk_periph_setup(struct device_node *np, + struct at91_pmc *pmc); + #endif /* __PMC_H_ */ |