Re: [PATCH 0/6] Add initial support for Broadcom Cygnus SoC

[Hauke Mehrtens]

On 09/19/2014 12:39 AM, Florian Fainelli wrote:
> On 09/18/2014 03:31 PM, Hauke Mehrtens wrote:
>> On 09/16/2014 09:58 PM, Jonathan Richardson wrote:
>>> Hi,
>>>
>>> This patchset contains initial support for Broadcom's Cygnus SoC based on our
>>> iProc architecture. Initial support is minimal and includes just the mach
>>> platform code, clock driver, and a basic device tree configuration. Peripheral
>>> drivers will be submitted soon, as will device tree configurations for other
>>> Cygnus board variants.
>>
>> This SoC looks similar to the BCM5301X (Northstar) SoCs even some cores
>> are at the same memory addresses. Does this SoC use an AXI bus with
>> Broadcom Plugins at address 0x18000000 ?
>>
>> The BCM5301X (Northstar) SoCs also has an iProc Clock Control Unit and I
>> will try to use your driver for that SoC.
>>
>> Is Broadcom Cygnus similar to BCM563XX or is it actually the same SoC?
> 
> According to this link:
> http://lists.denx.de/pipermail/u-boot/2014-August/186086.html
> 
> these SoCs, in particular BCM58622 would belong to the StrataGX network
> processors:
> http://www.broadcom.com/products/Processors/Home-and-Small-Business/BCM5862X-Series.

Broadcom claims that this SoC is pin and software compatible to BCM5301X:
> Pin compatible and software compatible products with previous
> generation BCM5301x products enable single design with easy
> upgradeable path

>> Do you have some description of the hardware features of this SoC? Does
>> it have PCIe, or Ethernet?
> 
> From the link above, it has Ethernet for sure, and certainly PCIe since
> the Wi-Fi chips mentioned in the link above are PCIe chips.
> 
> It would be really good if all the work you and Rafal did was usable for
> the Cygnus SoCs.

I also hope you can use much of the code and improve it. ;-)

Hauke

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