On 29 July 2016 at 22:55, Florian Fainelli <f.fainelli@xxxxxxxxx> wrote: > On 07/29/2016 01:52 PM, Rafał Miłecki wrote: >> On 29 July 2016 at 22:49, Ray Jui <ray.jui@xxxxxxxxxxxx> wrote: >>> On 7/29/2016 1:46 PM, Rafał Miłecki wrote: >>>> On 29 July 2016 at 22:44, Ray Jui <ray.jui@xxxxxxxxxxxx> wrote: >>>>> >>>>> On 7/29/2016 5:58 AM, Rafał Miłecki wrote: >>>>>> >>>>>> >>>>>> From: Rafał Miłecki <rafal@xxxxxxxxxx> >>>>>> >>>>>> This clock is present on cheaper Northstar devices like BCM53573 or >>>>>> BCM47189 using Corex-A7. This driver uses PMU (Power Management Unit) >>>>>> to calculate clock rate and allows using it in a generic (clk_*) way. >>>>>> >>>>> >>>>> I thought Northstar uses Cortex A9 instead of A7? >>>> >>>> >>>> [ 0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), >>>> cr=10c5387d >>>> [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing >>>> instruction cache >>>> [ 0.000000] Machine model: Tenda AC9 >>>> >>> >>> Yeah ARMv7 instruction set but the core is Cortex A7. Both Cortex A7 and A9 >>> use ARMv7 instructions. >> >> OK, sorry for irrelevant part then :) >> >> This is from BCM4709C0: >> bcma: bus0: Core 10 found: ARM Cortex A9 core (ihost) (manuf 0x4BF, id >> 0x510, rev 0x07, class 0x0) >> >> This is from BCM47189B0:: >> bcma: bus0: Core 3 found: ARM CA7 (manuf 0x4BF, id 0x847, rev 0x00, class 0x0) >> > > This is indeed a Cortex A7-based chip, not clear if putting this chip in > the Northstar family is accurate here because it really seems to have a > different architecture from the NS/NSP family here... Broadcom claims it is a Northstar, at least according to their SDKs: Asus RT-AC1200G+ # cat /proc/cpuinfo Processor : ARMv7 Processor rev 5 (v7l) BogoMIPS : 1795.68 Features : swp half thumb fastmult edsp CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xc07 CPU revision : 5 Hardware : Northstar Prototype Revision : 0000 Serial : 0000000000000000 -- Rafał -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
