7190a55c3e
So, it turns out that the AR8327 has 7 ports internally: * GMAC0 / external (CPU) MAC0 * GMAC1 / port1 -> GMAC5 / port5: external switch port PHYs * GMAC6 / external (CPU) MAC1 Now, depending upon how things are wired up, the second CPU port (MAC1) can be wired to either the switch (port6), or through port5's PHY, bypassing the GMAC+switch entirely. Ie, it can pretend to be a boring PHY, saving system designers from having to include a separate PHY for a "WAN" port. Here's the rub - the AP135 board (QCA955x SoC) hooks up arge0 to the second CPU port on the AR8327, but it's hooked up as RGMII. So, in order to hook it up to the rest of the switch, it isn't configured as a separate PHY - OpenWRT has it setup as connected via RGMII to GMAC6 and (I'm guessing) it's set to be a WAN port by configuring up port-based VLANs or something. Thus, with a port mask of 0x3f, GMAC6 was never allowed to receive traffic from any other port. It could transmit fine, but not receive anything. So, now it works enough for me to continue doing board bootstrapping. Note, this isn't enough to make the QCA955x + AR8327 work - there's a bunch of uncommitted work to both the platform SoC (interrupt handling, ethernet, etc) and the ethernet switch (register access space, setup, etc) that needs to happen. However, this particular change is also relevant to other SoCs, like the AR934x and AR7161, both of which can be glued to this switch. Tested: * AP135 development board TODO: * Figure out whether I can somehow abuse another port mode to have this be a pass-through PHY, or whether I should just create some more boot time hints to explicitly set up port-based isolation so this works in a more useful way by default.
This is the top level of the FreeBSD source directory. This file was last revised on: $FreeBSD$ For copyright information, please see the file COPYRIGHT in this directory (additional copyright information also exists for some sources in this tree - please see the specific source directories for more information). The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree, the most commonly used one being ``world'', which rebuilds and installs everything in the FreeBSD system from the source tree except the kernel, the kernel-modules and the contents of /etc. The ``world'' target should only be used in cases where the source tree has not changed from the currently running version. See: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html for more information, including setting make(1) variables. The ``buildkernel'' and ``installkernel'' targets build and install the kernel and the modules (see below). Please see the top of the Makefile in this directory for more information on the standard build targets and compile-time flags. Building a kernel is a somewhat more involved process, documentation for which can be found at: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html And in the config(8) man page. Note: If you want to build and install the kernel with the ``buildkernel'' and ``installkernel'' targets, you might need to build world before. More information is available in the handbook. The sample kernel configuration files reside in the sys/<arch>/conf sub-directory (assuming that you've installed the kernel sources), the file named GENERIC being the one used to build your initial installation kernel. The file NOTES contains entries and documentation for all possible devices, not just those commonly used. It is the successor of the ancient LINT file, but in contrast to LINT, it is not buildable as a kernel but a pure reference and documentation file. Source Roadmap: --------------- bin System/user commands. cddl Various commands and libraries under the Common Development and Distribution License. contrib Packages contributed by 3rd parties. crypto Cryptography stuff (see crypto/README). etc Template files for /etc. games Amusements. gnu Various commands and libraries under the GNU Public License. Please see gnu/COPYING* for more information. include System include files. kerberos5 Kerberos5 (Heimdal) package. lib System libraries. libexec System daemons. release Release building Makefile & associated tools. rescue Build system for statically linked /rescue utilities. sbin System commands. secure Cryptographic libraries and commands. share Shared resources. sys Kernel sources. tools Utilities for regression testing and miscellaneous tasks. usr.bin User commands. usr.sbin System administration commands. For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/synching.html