mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 21:54:06 +08:00
f3ff96e907
This part just add necessary change to boot imx6ul. Update clock and pinctrl for imx6ul Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
37 lines
1.5 KiB
Plaintext
37 lines
1.5 KiB
Plaintext
* Freescale i.MX6 UltraLite IOMUX Controller
|
|
|
|
Please refer to fsl,imx-pinctrl.txt in this directory for common binding part
|
|
and usage.
|
|
|
|
Required properties:
|
|
- compatible: "fsl,imx6ul-iomuxc"
|
|
- fsl,pins: each entry consists of 6 integers and represents the mux and config
|
|
setting for one pin. The first 5 integers <mux_reg conf_reg input_reg mux_val
|
|
input_val> are specified using a PIN_FUNC_ID macro, which can be found in
|
|
imx6ul-pinfunc.h under device tree source folder. The last integer CONFIG is
|
|
the pad setting value like pull-up on this pin. Please refer to i.MX6 UltraLite
|
|
Reference Manual for detailed CONFIG settings.
|
|
|
|
CONFIG bits definition:
|
|
PAD_CTL_HYS (1 << 16)
|
|
PAD_CTL_PUS_100K_DOWN (0 << 14)
|
|
PAD_CTL_PUS_47K_UP (1 << 14)
|
|
PAD_CTL_PUS_100K_UP (2 << 14)
|
|
PAD_CTL_PUS_22K_UP (3 << 14)
|
|
PAD_CTL_PUE (1 << 13)
|
|
PAD_CTL_PKE (1 << 12)
|
|
PAD_CTL_ODE (1 << 11)
|
|
PAD_CTL_SPEED_LOW (0 << 6)
|
|
PAD_CTL_SPEED_MED (1 << 6)
|
|
PAD_CTL_SPEED_HIGH (3 << 6)
|
|
PAD_CTL_DSE_DISABLE (0 << 3)
|
|
PAD_CTL_DSE_260ohm (1 << 3)
|
|
PAD_CTL_DSE_130ohm (2 << 3)
|
|
PAD_CTL_DSE_87ohm (3 << 3)
|
|
PAD_CTL_DSE_65ohm (4 << 3)
|
|
PAD_CTL_DSE_52ohm (5 << 3)
|
|
PAD_CTL_DSE_43ohm (6 << 3)
|
|
PAD_CTL_DSE_37ohm (7 << 3)
|
|
PAD_CTL_SRE_FAST (1 << 0)
|
|
PAD_CTL_SRE_SLOW (0 << 0)
|