From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Kaiser Subject: [PATCH 2/2] ARM: i.MX25: globally disable supervisor protect Date: Tue, 31 Jan 2017 20:20:02 +0100 Message-ID: <1485890402-22974-2-git-send-email-martin@kaiser.cx> References: <1485890402-22974-1-git-send-email-martin@kaiser.cx> Return-path: In-Reply-To: <1485890402-22974-1-git-send-email-martin@kaiser.cx> Sender: linux-kernel-owner@vger.kernel.org To: Shawn Guo , Sascha Hauer , Steffen Trumtrar Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Martin Kaiser List-Id: devicetree@vger.kernel.org The problem described in 6befda9a272b98bfb1dc772efc3564644cbfb270 for the i.MX53 platform applies to i.MX25 as well. E.g. CSPI1+SDMA and SSI1+SDMA are not working with the default AIPS configuration. Modifiy the AIPS configuration to allow access to the bus by SDMA and peripherals. Signed-off-by: Martin Kaiser --- arch/arm/mach-imx/mach-imx25.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/mach-imx/mach-imx25.c b/arch/arm/mach-imx/mach-imx25.c index 32dcb5e..353b86e 100644 --- a/arch/arm/mach-imx/mach-imx25.c +++ b/arch/arm/mach-imx/mach-imx25.c @@ -23,6 +23,11 @@ static void __init imx25_init_early(void) mxc_set_cpu_type(MXC_CPU_MX25); } +static void __init imx25_dt_init(void) +{ + imx_aips_allow_unprivileged_access("fsl,imx25-aips"); +} + static void __init mx25_init_irq(void) { struct device_node *np; @@ -41,6 +46,7 @@ static const char * const imx25_dt_board_compat[] __initconst = { DT_MACHINE_START(IMX25_DT, "Freescale i.MX25 (Device Tree Support)") .init_early = imx25_init_early, + .init_machine = imx25_dt_init, .init_late = imx25_pm_init, .init_irq = mx25_init_irq, .dt_compat = imx25_dt_board_compat, -- 2.1.4