From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sergei Shtylyov Date: Wed, 23 Apr 2014 18:54:33 +0000 Subject: Re: [PATCH 05/14] ARM: shmobile: koelsch-reference: Work around core clock issues Message-Id: <53580C69.20602@cogentembedded.com> List-Id: References: <53cf0cf7ba2ef785b339826a0765bb6b1756adeb.1397774191.git.horms+renesas@verge.net.au> <5356D0B8.5010406@cogentembedded.com> <20140423002254.GD5738@verge.net.au> In-Reply-To: <20140423002254.GD5738@verge.net.au> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-arm-kernel@lists.infradead.org Hello. On 04/23/2014 04:22 AM, Simon Horman wrote: >>> From: Geert Uytterhoeven >>> Due to issues with runtime PM clock management, clocks not explicitly >>> managed by their drivers may not be enabled at all, or be inadvertently >>> disabled by the clk_disable_unused() late initcall. >>> Until this is fixed, add a temporary workaround, calling >>> shmobile_clk_workaround() with enable = true. >>> For now this enables the clocks for: ether, i2c2, msiof0, qspi_mod, and >>> thermal. More clocks can be added if needed. >>> Signed-off-by: Geert Uytterhoeven >>> Signed-off-by: Simon Horman >> It is strange but this workaround doesn't seem to help me booting Koelsch >> reference kernel with NFS root: it still crashes due to imprecise >> external abort once the userland starts. Only the actual drivers/sh/ Unfortunately, I currently don't have time to find out what is wrong with the workaround... >> fixing series by Ben/Geert helps with booting further. I therefore >> would like to have it merged by Simon the sooner the better... > For my reference, specifically which patches are you referring to? Here the link to the cover letter of the 17 patch series: http://marc.info/?l=linux-sh&m9756526122104 WBR, Sergei