From mboxrd@z Thu Jan 1 00:00:00 1970 From: stefan@agner.ch (Stefan Agner) Date: Wed, 09 May 2018 16:12:59 +0200 Subject: [PATCH] clk: imx6ull: use OSC clock during AXI rate change In-Reply-To: References: <20180418124908.3079-1-stefan@agner.ch> <20180502073807.GE3443@dragon> <56a409cf76a3eaa713cb4f0bbe1e39b6@agner.ch> <4188ee25bd5179b57d09e4624dcfbfbb@agner.ch> <152580354289.138124.13657232356773397650@swboyd.mtv.corp.google.com> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 09.05.2018 03:26, Jacky Bai wrote: >> Subject: Re: [PATCH] clk: imx6ull: use OSC clock during AXI rate change >> >> Quoting Stefan Agner (2018-05-08 06:20:03) >> > On 08.05.2018 09:32, Jacky Bai wrote: >> > > >> > > I have tried two 6ULL board, I don't meet such issue. System can >> > > boot up successfully with commit 6f9575e55632 included. >> > > Anyway, the change in this patch is ok for me. it is no harm to the >> > > BUS clock change flow. >> > >> > Hm, that is interesting, maybe it is because we use a different SKU? >> > Or maybe bootloader? >> > >> > I tested here with a 800 MHz clocked variant on a Colibri iMX6ULL >> > using U-Boot 2016.11. >> > >> >> I'll throw this into fixes today because it fixes something to be useful. It's still >> interesting to see what's different between the two setups though. > > Thanks. > > I will find some 800MHz parts and have a try with different bootloader later. > Will let you know, when I have some results. > FWIW, I tried two SKUs here: MCIMX6Z2DVM05AA (528Mhz) MCIMX6Z2CVM08AA (800MHz) Both run at 396MHz in U-Boot, and both freeze and the same location. -- Stefan