On Mon, Jul 14, 2014 at 03:55:29PM +0200, Stefan Agner wrote:

There are two enable (gates) bits to enable the FlexCAN clocks: the
first is in the divider register, the second in the clock gate register.
For most clocks there is a divider in between, then it looks like this:

clk[VF610_CLK_ESDHC0_SEL] = imx_clk_mux("esdhc0_sel", CCM_CSCMR1, 16, 2,
esdhc_sels, 4);
clk[VF610_CLK_ESDHC0_EN] = imx_clk_gate("esdhc0_en", "esdhc0_sel",
CCM_CSCDR2, 28);
clk[VF610_CLK_ESDHC0_DIV] = imx_clk_divider("esdhc0_div", "esdhc0_en",
CCM_CSCDR2, 16, 4);
clk[VF610_CLK_ESDHC0] = imx_clk_gate2("eshc0", "esdhc0_div", CCM_CCGR7,
CCM_CCGRx_CGn(1));

However, for FlexCAN no clock selection and no divider is available,
hence its just a chain of an enable and gate register...

Ah, okay.  Thanks for the explanation.

Shawn