From: Christoph Niedermaier cniedermaier@dh-electronics.de
If the function gpr_init is used in a common MX6 spl implementation we have to ensure that it is only called for suitable cpu types, otherwise it breaks hardware parts like enet1, can1, can2, etc.
Signed-off-by: Christoph Niedermaier cniedermaier@dh-electronics.de --- arch/arm/mach-imx/mx6/soc.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/arch/arm/mach-imx/mx6/soc.c b/arch/arm/mach-imx/mx6/soc.c index 31c9a6e..e80f1d4 100644 --- a/arch/arm/mach-imx/mx6/soc.c +++ b/arch/arm/mach-imx/mx6/soc.c @@ -660,6 +660,14 @@ void gpr_init(void) { struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
+ /* + * If this function is used in a common MX6 spl implementation + * we have to ensure that it is only called for suitable cpu types, + * otherwise it breaks hardware parts like enet1, can1, can2, etc. + */ + if (!is_mx6dqp() && !is_mx6dq() && !is_mx6sdl()) + return; + /* enable AXI cache for VDOA/VPU/IPU */ writel(0xF00000CF, &iomux->gpr[4]); if (is_mx6dqp()) {