[PATCH] doc: PCI: altera: Fix the 'ranges' property in example
From: marex@denx.de (Marek Vasut)
Date: 2015-12-28 08:26:52
On Monday, December 28, 2015 at 08:42:00 AM, Ley Foon Tan wrote:
On Mon, Dec 28, 2015 at 3:34 PM, Marek Vasut [off-list ref] wrote:quoted
On Monday, December 28, 2015 at 07:56:15 AM, Ley Foon Tan wrote:quoted
On Thu, 2015-12-24 at 10:45 +0100, Marek Vasut wrote:quoted
The example does not work on real hardware with the PCIe HIP [1]. The problem is with incorrect "ranges" property in the example, so one cannot just copy-paste the example into his DT and expect this to work. This patches aligns the "ranges" in the example with the reference FPGA design.Hi MarekHi Ley,quoted
The original "ranges" is working for me. What error did you encounter?Every time a driver accessed the Txs range, the system got stuck hard. The Cra access always worked fine though, so the PCIe devices were always detected. I checked with signaltap and my impression is that the wrong address propagated into the request passed to the Txs port of the HardIP block, unless I change the range configuration. Note that I tested Intel Centrino 6235 WiFi card and Atheros AR5006 WiFi card. The intel in particular uses both the Txs and even MSI , so to use the intel, the whole PCIe block has to work properly ; with this change, it does and I can use the intel card just fine.quoted
Thanks.Hi Marek I tested two Ethernet adapters, one SSD NVMe and our custom endpoint without the problem. Can you please send me your dts file if possible? Do you use the latest Altera pcie driver in v4.4?
I'm using next from 20151223, crude patch is attached. Best regards, Marek Vasut -------------- next part -------------- A non-text attachment was scrubbed... Name: 0001-ARM-socfpga-Enable-PCIe-support.patch Type: text/x-patch Size: 2018 bytes Desc: not available URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20151228/5a3c326f/attachment.bin>