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Date: Thu, 18 Sep 2014 15:39:18 -0700
From: Florian Fainelli <florian@openwrt.org>
Organization: OpenWrt
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To: Hauke Mehrtens <hauke@hauke-m.de>,
        Jonathan Richardson <jonathar@broadcom.com>,
        Christian Daudt <bcm@fixthebug.org>, Matt Porter <mporter@linaro.org>,
        Russell King <linux@arm.linux.org.uk>,
        Mike Turquette <mturquette@linaro.org>,
        Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
        Mark Rutland <mark.rutland@arm.com>,
        Ian Campbell <ijc+devicetree@hellion.org.uk>,
        Kumar Gala <galak@codeaurora.org>, JD Zheng <jdzheng@broadcom.com>
CC: devicetree@vger.kernel.org, Scott Branden <sbranden@broadcom.com>,
        Ray Jui <rjui@broadcom.com>,
        =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= <zajec5@gmail.com>,
        linux-kernel@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com,
        linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 0/6] Add initial support for Broadcom Cygnus SoC
References: <Jonathan Richardson <jonathar@broadcom.com> <1410897497-27527-1-git-send-email-jonathar@broadcom.com> <541B5D5A.10800@hauke-m.de>
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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.

> 
> 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.
--
Florian