Re: [RFC 4/5] clk: iproc: define Broadcom NS2 iProc clock binding
From: Jon Mason
Date: Wed Oct 14 2015 - 11:44:22 EST
On Tue, Oct 13, 2015 at 03:24:52PM -0700, Ray Jui wrote:
> Same as this patch. I thought device tree binding document should go
> with the clock driver changes.
>
> Strictly speaking, device tree binding document should always go before
> the driver changes. In the binding document the DT interface is defined,
> then changes are implemented in the driver.
I split them off this way due to the clk maintainer not wanting to
pull in any device tree changes. Since the documentation is for the
device tree enties, it makes logical sense to me that they be in the
same device tree series. If Stephen will pull these in with the clk
changes, I am more than happy to have it done by him :)
Thanks,
Jon
>
> Ray
>
> On 10/13/2015 2:22 PM, Jon Mason wrote:
> > Document the device tree bindings for Broadcom Northstar 2 architecture
> > based clock controller
> >
> > Signed-off-by: Jon Mason <jonmason@xxxxxxxxxxxx>
> > ---
> > .../bindings/clock/brcm,iproc-clocks.txt | 48 ++++++++++++++++++++++
> > 1 file changed, 48 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt b/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt
> > index b3c3e9d..ede65a5 100644
> > --- a/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt
> > +++ b/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt
> > @@ -160,3 +160,51 @@ Northstar Plus. These clock IDs are defined in:
> > pcie_phy lcpll0 1 BCM_NSP_LCPLL0_PCIE_PHY_REF_CLK
> > sdio lcpll0 2 BCM_NSP_LCPLL0_SDIO_CLK
> > ddr_phy lcpll0 3 BCM_NSP_LCPLL0_DDR_PHY_CLK
> > +
> > +Northstar 2
> > +-----------
> > +PLL and leaf clock compatible strings for Northstar 2 are:
> > + "brcm,ns2-genpll-scr"
> > + "brcm,ns2-genpll-sw"
> > + "brcm,ns2-lcpll-ddr"
> > + "brcm,ns2-lcpll-ports"
> > +
> > +The following table defines the set of PLL/clock index and ID for Northstar 2.
> > +These clock IDs are defined in:
> > + "include/dt-bindings/clock/bcm-ns2.h"
> > +
> > + Clock Source Index ID
> > + --- ----- ----- ---------
> > + crystal N/A N/A N/A
> > +
> > + genpll_scr crystal 0 BCM_NS2_GENPLL_SCR
> > + scr genpll_scr 1 BCM_NS2_GENPLL_SCR_SCR_CLK
> > + fs genpll_scr 2 BCM_NS2_GENPLL_SCR_FS_CLK
> > + audio_ref genpll_scr 3 BCM_NS2_GENPLL_SCR_AUDIO_CLK
> > + ch3_unused genpll_scr 4 BCM_NS2_GENPLL_SCR_CH3_UNUSED
> > + ch4_unused genpll_scr 5 BCM_NS2_GENPLL_SCR_CH4_UNUSED
> > + ch5_unused genpll_scr 6 BCM_NS2_GENPLL_SCR_CH5_UNUSED
> > +
> > + genpll_sw crystal 0 BCM_NS2_GENPLL_SW
> > + rpe genpll_sw 1 BCM_NS2_GENPLL_SW_RPE_CLK
> > + 250 genpll_sw 2 BCM_NS2_GENPLL_SW_250_CLK
> > + nic genpll_sw 3 BCM_NS2_GENPLL_SW_NIC_CLK
> > + chimp genpll_sw 4 BCM_NS2_GENPLL_SW_CHIMP_CLK
> > + port genpll_sw 5 BCM_NS2_GENPLL_SW_PORT_CLK
> > + sdio genpll_sw 6 BCM_NS2_GENPLL_SW_SDIO_CLK
> > +
> > + lcpll_ddr crystal 0 BCM_NS2_LCPLL_DDR
> > + pcie_sata_usb lcpll_ddr 1 BCM_NS2_LCPLL_DDR_PCIE_SATA_USB_CLK
> > + ddr lcpll_ddr 2 BCM_NS2_LCPLL_DDR_DDR_CLK
> > + ch2_unused lcpll_ddr 3 BCM_NS2_LCPLL_DDR_CH2_UNUSED
> > + ch3_unused lcpll_ddr 4 BCM_NS2_LCPLL_DDR_CH3_UNUSED
> > + ch4_unused lcpll_ddr 5 BCM_NS2_LCPLL_DDR_CH4_UNUSED
> > + ch5_unused lcpll_ddr 6 BCM_NS2_LCPLL_DDR_CH5_UNUSED
> > +
> > + lcpll_ports crystal 0 BCM_NS2_LCPLL_PORTS
> > + wan lcpll_ports 1 BCM_NS2_LCPLL_PORTS_WAN_CLK
> > + rgmii lcpll_ports 2 BCM_NS2_LCPLL_PORTS_RGMII_CLK
> > + ch2_unused lcpll_ports 3 BCM_NS2_LCPLL_PORTS_CH2_UNUSED
> > + ch3_unused lcpll_ports 4 BCM_NS2_LCPLL_PORTS_CH3_UNUSED
> > + ch4_unused lcpll_ports 5 BCM_NS2_LCPLL_PORTS_CH4_UNUSED
> > + ch5_unused lcpll_ports 6 BCM_NS2_LCPLL_PORTS_CH5_UNUSED
> >
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