From mboxrd@z Thu Jan 1 00:00:00 1970 From: shawnguo@kernel.org (Shawn Guo) Date: Tue, 28 Jun 2016 10:36:52 +0800 Subject: [PATCH] ARM: i.MX: Disable supervisor protect for i.MX51 In-Reply-To: <1466832375-32071-1-git-send-email-shc_work@mail.ru> References: <1466832375-32071-1-git-send-email-shc_work@mail.ru> Message-ID: <20160628023652.GE21328@tiger> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Sat, Jun 25, 2016 at 08:26:15AM +0300, Alexander Shiyan wrote: > Most peripherals on the i.MX51 have an Off-Platform Peripheral Access > Control Register (OPACR) in which the access rights (together with the > MPROT registers) can be declared. > However, this does not seem to work for example for SSI1+SDMA, because the > supervisor bit is not set for the SDMA unit. > A similar problem was described in the patch for i.MX53 CPU > (ARM: i.MX53: globally disable supervisor protect), and the same solution > is applicable for i.MX51 CPU. > Patch has tested on custom board based on Digi CCMX-51 module (i.MX51). > > Signed-off-by: Alexander Shiyan Applied, thanks.