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Fri, 03 May 2019 10:06:14 -0700 (PDT) Date: Fri, 3 May 2019 10:06:13 -0700 From: Guenter Roeck To: Linus Walleij Subject: Re: [PATCH 1/6] ARM: ks8695: watchdog: stop using mach/*.h Message-ID: <20190503170613.GA1783@roeck-us.net> References: <20190415202501.941196-1-arnd@arndb.de> <2424c672-e3fb-4c32-4c24-fafc59d03a96@uclinux.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190503_100615_988109_195F6343 X-CRM114-Status: GOOD ( 22.51 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: LINUXWATCHDOG , Arnd Bergmann , "linux-kernel@vger.kernel.org" , arm-soc , Greg Ungerer , Wim Van Sebroeck , Linux ARM Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, May 03, 2019 at 08:16:05AM +0100, Linus Walleij wrote: > On Fri, May 3, 2019 at 8:02 AM Greg Ungerer wrote: > > > I dug out some old ks8695 based hardware to try this out. > > I had a lot of trouble getting anything modern working on it. > > In the end I still don't have a reliable test bed to test this properly. > > What is usually used by old ARMv4 systems is OpenWrt or > OpenEmbedded. Those is the only build systems that reliably > produce a userspace for these things now, and it is also the > appropriate size for this kind of systems. > > > Ultimately though I am left wondering if the ks8695 support in the > > kernel is useful to anyone the way it is at the moment. With a minimal > > kernel configuration I can boot up to a shell - but the system is > > really unreliable if you try to interactively use it. I don't think > > it is the hardware - it seems to run reliably with the old code > > it has running from flash on it. I am only testing the new kernel, > > running with the existing user space root filesystem on it (which > > dates from 2004 :-) > > Personally I think it is a bad sign that this subarch and boards do > not have active OpenWrt support, they are routers after all (right?) > and any active use of networking equipment should use a recent > userspace as well, given all the security bugs that popped up over > the years. > > With IXP4xx, Gemini and EP93xx we have found active users and > companies selling the chips and reference designs and even > recommending it for new products (!) at times. If this is not the > case with KS8695 and no hobbyists are willing to submit it > to OpenWrt and modernize it to use device tree I think it should be > deleted from the kernel. > That may be the best approach if indeed no one is using it, much less maintaining it. Guenter _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel