While booting from device tree, imx6q used to provide twd clock lookup
by calling clk_register_clkdev() in clock driver. However, the commit
bd60345 (ARM: use device tree to get smp_twd clock) forces DT boot to
look up the clock from device tree. It causes the failure below when
twd driver tries to get the clock, and hence kernel has to calibrate the
local timer frequency.
smp_twd: clock not found -2
...
Calibrating local timer... 396.13MHz.
Fix the regression by providing twd clock lookup from device tree, and
remove the unused twd clk_register_clkdev() call from clock driver.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Add dtsi for imx6q and imx6dl with non-common blocks moved into there.
Major differences between imx6dl and imx6q:
* Dual vs. Quad cores
* single vs. dual IPU
* 128 vs. 256 KB OCRAM
* imx6q: ECSPI5, OpenVG (GC355), SATA
* imx6dl: I2C4, PXP, EPDC, LCDIF
* iomuxc/pads definition
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
i.MX6 Quad and i.MX6 DualLite is similar enough to share one dtsi
file, so rename imx6q.dtsi to imx6qdl.dtsi preparing for the addition
of imx6dl support.
Another member of i.MX6 series i.MX6 SoloLite is different enough
from the other two, so it will stand as a separate dtsi. That's why
we rename to imx6qdl.dtsi not imx6.dtsi.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Shawn Guo