Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1248173

Re: [PATCH v3 08/10] clk: ns2: add clock support for Broadcom Northstar 2 SoC

Show all headers | View raw

On 10/15/2015 1:40 PM, Scott Branden wrote:
> We need some sort of kconfig option to differentiate NS2 clock driver
> from being pulled in all the time.
> 
> On 15-10-15 12:48 PM, Jon Mason wrote:
>> The Broadcom Northstar 2 SoC is architected under the iProc
>> architecture. It has the following PLLs: GENPLL SCR, GENPLL SW,
>> LCPLL DDR, LCPLL Ports, all derived from an onboard crystal.
>>
>> Signed-off-by: Jon Mason <jonmason@broadcom.com>
>> ---
>>   drivers/clk/Makefile                |   2 +-
>>   drivers/clk/bcm/Makefile            |   1 +
>>   drivers/clk/bcm/clk-ns2.c           | 288
>> ++++++++++++++++++++++++++++++++++++
>>   include/dt-bindings/clock/bcm-ns2.h |  72 +++++++++
>>   4 files changed, 362 insertions(+), 1 deletion(-)
>>   create mode 100644 drivers/clk/bcm/clk-ns2.c
>>   create mode 100644 include/dt-bindings/clock/bcm-ns2.h
>>
>> diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
>> index d08b3e5..6124bd3 100644
>> --- a/drivers/clk/Makefile
>> +++ b/drivers/clk/Makefile
>> @@ -47,7 +47,7 @@ obj-$(CONFIG_COMMON_CLK_WM831X)        += clk-wm831x.o
>>   obj-$(CONFIG_COMMON_CLK_XGENE)        += clk-xgene.o
>>   obj-$(CONFIG_COMMON_CLK_PWM)        += clk-pwm.o
>>   obj-$(CONFIG_COMMON_CLK_AT91)        += at91/
>> -obj-$(CONFIG_ARCH_BCM)            += bcm/
>> +obj-y                    += bcm/
>>   obj-$(CONFIG_ARCH_BERLIN)        += berlin/
>>   obj-$(CONFIG_ARCH_HISI)            += hisilicon/
>>   obj-$(CONFIG_ARCH_MXC)            += imx/
>> diff --git a/drivers/clk/bcm/Makefile b/drivers/clk/bcm/Makefile
>> index e258b28..2d1cbc5 100644
>> --- a/drivers/clk/bcm/Makefile
>> +++ b/drivers/clk/bcm/Makefile
>> @@ -3,6 +3,7 @@ obj-$(CONFIG_CLK_BCM_KONA)    += clk-kona-setup.o
>>   obj-$(CONFIG_CLK_BCM_KONA)    += clk-bcm281xx.o
>>   obj-$(CONFIG_CLK_BCM_KONA)    += clk-bcm21664.o
>>   obj-$(CONFIG_COMMON_CLK_IPROC)    += clk-iproc-armpll.o
>> clk-iproc-pll.o clk-iproc-asiu.o
>> +obj-$(CONFIG_COMMON_CLK_IPROC)    += clk-ns2.o
> 
> NS2 code is dragged in for all IPROC SoCs.  We need a config option for
> NS2 (CONFIG_ARCH_BCM_NS2) to avoid this (if Arnd allows this for ARMv8
> processors... ?).
> 
> You can see below ARMv7 processors don't have this problem.
> 

The arm64 maintainers (Catalin, Mark, and etc.) stated they only want
one ARCH options per chip family.

> If not we need to add CONFIG_CLK_NS2.

If using CONFIG_CLK_NS2, how is it going to be enabled/selected?

Ray
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH v3 08/10] clk: ns2: add clock support for Broadcom Northstar 2 SoC Jon Mason <jonmason@broadcom.com> - 2015-10-15 21:50 +0200
  Re: [PATCH v3 08/10] clk: ns2: add clock support for Broadcom  Northstar 2 SoC Scott Branden <sbranden@broadcom.com> - 2015-10-15 22:50 +0200
    Re: [PATCH v3 08/10] clk: ns2: add clock support for Broadcom  Northstar 2 SoC Ray Jui <rjui@broadcom.com> - 2015-10-15 23:00 +0200
      Re: [PATCH v3 08/10] clk: ns2: add clock support for Broadcom  Northstar 2 SoC Scott Branden <sbranden@broadcom.com> - 2015-10-15 23:10 +0200
        Re: [PATCH v3 08/10] clk: ns2: add clock support for Broadcom  Northstar 2 SoC Jon Mason <jonmason@broadcom.com> - 2015-10-15 23:20 +0200
          Re: [PATCH v3 08/10] clk: ns2: add clock support for Broadcom  Northstar 2 SoC Ray Jui <rjui@broadcom.com> - 2015-10-15 23:20 +0200
            Re: [PATCH v3 08/10] clk: ns2: add clock support for Broadcom  Northstar 2 SoC Scott Branden <sbranden@broadcom.com> - 2015-10-15 23:30 +0200

csiph-web