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authorMartin Kaiser <martin@kaiser.cx>2017-04-03 22:47:05 +0300
committerShawn Guo <shawnguo@kernel.org>2017-04-04 16:11:16 +0300
commit24bb244e02a6bead5b854d842002df0d38ae7b7b (patch)
tree69492764d53455330e92c84dd8b76d5131f38c59
parent901f26bce64a96bd9d038fda3604bd0ab1098c3b (diff)
downloadlinux-24bb244e02a6bead5b854d842002df0d38ae7b7b.tar.xz
ARM: i.MX25: globally disable supervisor protect
The problem described in commit 6befda9a272b ("ARM: i.MX53: globally disable supervisor protect") 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 <martin@kaiser.cx> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
-rw-r--r--arch/arm/mach-imx/mach-imx25.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mach-imx25.c b/arch/arm/mach-imx/mach-imx25.c
index 32dcb5e99e23..353b86e3808f 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,