On Wed, Jan 09, 2013 at 07:12:00PM +0100, Lars-Peter Clausen wrote: > This driver adds support for the AXI clkgen pcore to the common clock > framework. > The AXI clkgen pcore is a AXI front-end to the MMCM_ADV frequency synthesizer > commonly found in Xilinx FPGAs. > > The AXI clkgen pcore is used in Analog Devices' reference designs targeting > Xilinx FPGAs. > > Signed-off-by: Lars-Peter Clausen <[email protected]> > --- > .../devicetree/bindings/clock/axi-clkgen.txt | 22 ++ > drivers/clk/Kconfig | 8 + > drivers/clk/Makefile | 1 + > drivers/clk/clk-axi-clkgen.c | 326 > +++++++++++++++++++++ > 4 files changed, 357 insertions(+) > create mode 100644 Documentation/devicetree/bindings/clock/axi-clkgen.txt > create mode 100644 drivers/clk/clk-axi-clkgen.c > [..] > diff --git a/drivers/clk/clk-axi-clkgen.c b/drivers/clk/clk-axi-clkgen.c > new file mode 100644 > index 0000000..e9db225 > --- /dev/null > +++ b/drivers/clk/clk-axi-clkgen.c > @@ -0,0 +1,326 @@ > +/* > + * AXI clkgen driver > + * > + * Copyright 2012-2013 Analog Device Inc. > + * Author: Lars-Peter Clausen <[email protected]> > + * > + * Licensed under the GPL-2. > + * > + */ > + > +#include <linux/platform_device.h> > +#include <linux/clk-provider.h> > +#include <linux/clk.h> > +#include <linux/slab.h> > +#include <linux/io.h> > +#include <linux/of.h> > +#include <linux/module.h> > +#include <linux/err.h> > + > +#define AXI_CLKGEN_REG_UPDATE_ENABLE 0x04 > +#define AXI_CLKGEN_REG_CLK_OUT1 0x08 > +#define AXI_CLKGEN_REG_CLK_OUT2 0x0c > +#define AXI_CLKGEN_REG_CLK_DIV 0x10 > +#define AXI_CLKGEN_REG_CLK_FB1 0x14 > +#define AXI_CLKGEN_REG_CLK_FB2 0x18 > +#define AXI_CLKGEN_REG_LOCK1 0x1c > +#define AXI_CLKGEN_REG_LOCK2 0x20 > +#define AXI_CLKGEN_REG_LOCK3 0x24 > +#define AXI_CLKGEN_REG_FILTER1 0x28 > +#define AXI_CLKGEN_REG_FILTER2 0x2c > + > +struct axi_clkgen { > + void __iomem *base; > + struct clk_hw clk_hw; > +}; > + > +static uint32_t axi_clkgen_lookup_filter(unsigned int m) > +{ > + switch (m) { > + case 0: > + return 0x01001990; > + case 1: > + return 0x01001190; > + case 2: > + return 0x01009890; > + case 3: > + return 0x01001890; > + case 4: > + return 0x01008890; > + case 5 ... 8: > + return 0x01009090; > + case 9 ... 11: > + return 0x0100890;
Just checking to ensure this ^ entry is correct, since it looks different then the others (it may very well be). Josh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
