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| author | Robert Jarzmik <robert.jarzmik@free.fr> | 2014-07-30 22:50:59 +0200 |
|---|---|---|
| committer | Mike Turquette <mturquette@linaro.org> | 2014-09-30 12:31:30 -0700 |
| commit | bda003036684b9779fca2b3d457621eaff9bcd0a (patch) | |
| tree | ab1b69b8d74b6baa63c0dd021fbbf562f36c56e2 /drivers/clk/Makefile | |
| parent | 7d1311b93e58ed55f3a31cc8f94c4b8fe988a2b9 (diff) | |
| download | linux-bda003036684b9779fca2b3d457621eaff9bcd0a.tar.bz2 | |
clk: add pxa clocks infrastructure
Add a the common code used by all PXA variants.
This is the first step in the transition from architecture defined
clocks (in arch/arm/mach-pxa) towards clock framework. The goal is to
have the same features (and not all the features) of the existing
clocks, and enable the transition of PXA to device-tree.
All PXA rely on a "CKEN" type clock, which :
- has a gate (bit in CKEN register)
- is generated from a PLL, generally divided
- has an alternate low power clock
Each variant will specialize the CKEN clock :
- pxa25x have no low power clock
- pxa27x in low power use always the 13 MHz ring oscillator
- pxa3xx in low power have specific dividers for each clock
The device-tree provides a list of CLK_* (ex: CLK_USB or CLK_I2C) to get
a handle on the clock. While pxa-clock.h will describe all the clocks of
all the variants, each variant will only use a subset of it.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Diffstat (limited to 'drivers/clk/Makefile')
| -rw-r--r-- | drivers/clk/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index f537a0b1f798..7891e4edaa07 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -48,6 +48,7 @@ obj-$(CONFIG_ARCH_MMP) += mmp/ endif obj-$(CONFIG_PLAT_ORION) += mvebu/ obj-$(CONFIG_ARCH_MXS) += mxs/ +obj-$(CONFIG_ARCH_PXA) += pxa/ obj-$(CONFIG_COMMON_CLK_QCOM) += qcom/ obj-$(CONFIG_ARCH_ROCKCHIP) += rockchip/ obj-$(CONFIG_COMMON_CLK_SAMSUNG) += samsung/ |