On 29 July 2016 at 22:55, Florian Fainelli [off-list ref] wrote:

On 07/29/2016 01:52 PM, Rafał Miłecki wrote:

quoted

On 29 July 2016 at 22:49, Ray Jui [off-list ref] wrote:

quoted

On 7/29/2016 1:46 PM, Rafał Miłecki wrote:

quoted

On 29 July 2016 at 22:44, Ray Jui [off-list ref] wrote:

quoted

On 7/29/2016 5:58 AM, Rafał Miłecki wrote:

quoted

From: Rafał Miłecki <rafal@milecki.pl>

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