On Mon, 28 Sep 2015, Eric Anholt wrote: > Previously we've only supported a few fixed clocks based on > assumptions about how the firmware sets up the clocks, but this > binding will let us control the actual (audio power domain) clock > manager. > > Signed-off-by: Eric Anholt <[email protected]> > Acked-by: Stephen Warren <[email protected]> > --- > .../bindings/clock/brcm,bcm2835-cprman.txt | 45 +++++++++++++++++++++ > include/dt-bindings/clock/bcm2835.h | 47 > ++++++++++++++++++++++ > 2 files changed, 92 insertions(+) > create mode 100644 > Documentation/devicetree/bindings/clock/brcm,bcm2835-cprman.txt > create mode 100644 include/dt-bindings/clock/bcm2835.h
Acked-by: Lee Jones <[email protected]> > diff --git a/Documentation/devicetree/bindings/clock/brcm,bcm2835-cprman.txt > b/Documentation/devicetree/bindings/clock/brcm,bcm2835-cprman.txt > new file mode 100644 > index 0000000..e56a1df > --- /dev/null > +++ b/Documentation/devicetree/bindings/clock/brcm,bcm2835-cprman.txt > @@ -0,0 +1,45 @@ > +Broadcom BCM2835 CPRMAN clocks > + > +This binding uses the common clock binding: > + Documentation/devicetree/bindings/clock/clock-bindings.txt > + > +The CPRMAN clock controller generates clocks in the audio power domain > +of the BCM2835. There is a level of PLLs deriving from an external > +oscillator, a level of PLL dividers that produce channels off of the > +few PLLs, and a level of mostly-generic clock generators sourcing from > +the PLL channels. Most other hardware components source from the > +clock generators, but a few (like the ARM or HDMI) will source from > +the PLL dividers directly. > + > +Required properties: > +- compatible: Should be "brcm,bcm2835-cprman" > +- #clock-cells: Should be <1>. The permitted clock-specifier values can > be > + found in include/dt-bindings/clock/bcm2835.h > +- reg: Specifies base physical address and size of the > registers > +- clocks: The external oscillator clock phandle > + > +Example: > + > + clk_osc: clock@3 { > + compatible = "fixed-clock"; > + reg = <3>; > + #clock-cells = <0>; > + clock-output-names = "osc"; > + clock-frequency = <19200000>; > + }; > + > + clocks: cprman@7e101000 { > + compatible = "brcm,bcm2835-cprman"; > + #clock-cells = <1>; > + reg = <0x7e101000 0x2000>; > + clocks = <&clk_osc>; > + }; > + > + i2c0: i2c@7e205000 { > + compatible = "brcm,bcm2835-i2c"; > + reg = <0x7e205000 0x1000>; > + interrupts = <2 21>; > + clocks = <&clocks BCM2835_CLOCK_VPU>; > + #address-cells = <1>; > + #size-cells = <0>; > + }; > diff --git a/include/dt-bindings/clock/bcm2835.h > b/include/dt-bindings/clock/bcm2835.h > new file mode 100644 > index 0000000..d323efa > --- /dev/null > +++ b/include/dt-bindings/clock/bcm2835.h > @@ -0,0 +1,47 @@ > +/* > + * Copyright (C) 2015 Broadcom Corporation > + * > + * 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 version 2. > + * > + * This program is distributed "as is" WITHOUT ANY WARRANTY of any > + * kind, whether express or implied; without even the implied warranty > + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + */ > + > +#define BCM2835_PLLA 0 > +#define BCM2835_PLLB 1 > +#define BCM2835_PLLC 2 > +#define BCM2835_PLLD 3 > +#define BCM2835_PLLH 4 > + > +#define BCM2835_PLLA_CORE 5 > +#define BCM2835_PLLA_PER 6 > +#define BCM2835_PLLB_ARM 7 > +#define BCM2835_PLLC_CORE0 8 > +#define BCM2835_PLLC_CORE1 9 > +#define BCM2835_PLLC_CORE2 10 > +#define BCM2835_PLLC_PER 11 > +#define BCM2835_PLLD_CORE 12 > +#define BCM2835_PLLD_PER 13 > +#define BCM2835_PLLH_RCAL 14 > +#define BCM2835_PLLH_AUX 15 > +#define BCM2835_PLLH_PIX 16 > + > +#define BCM2835_CLOCK_TIMER 17 > +#define BCM2835_CLOCK_OTP 18 > +#define BCM2835_CLOCK_UART 19 > +#define BCM2835_CLOCK_VPU 20 > +#define BCM2835_CLOCK_V3D 21 > +#define BCM2835_CLOCK_ISP 22 > +#define BCM2835_CLOCK_H264 23 > +#define BCM2835_CLOCK_VEC 24 > +#define BCM2835_CLOCK_HSM 25 > +#define BCM2835_CLOCK_SDRAM 26 > +#define BCM2835_CLOCK_TSENS 27 > +#define BCM2835_CLOCK_EMMC 28 > +#define BCM2835_CLOCK_PERI_IMAGE 29 > + > +#define BCM2835_CLOCK_COUNT 30 -- To unsubscribe from this list: send the line "unsubscribe linux-clk" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
