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| author | Peng Fan <van.freenix@gmail.com> | 2016-02-03 10:06:07 +0800 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2016-02-21 11:23:48 +0100 |
| commit | 745df68d362346306900678178b8a7d5bbd73d0e (patch) | |
| tree | fe8eb00464bb1f821f7d8c4e5692c4bcc003cae1 /drivers/pinctrl/Makefile | |
| parent | f91e65a74eff93d5187a3b27e1badd80c2a35fed (diff) | |
| download | talos-obmc-uboot-745df68d362346306900678178b8a7d5bbd73d0e.tar.gz talos-obmc-uboot-745df68d362346306900678178b8a7d5bbd73d0e.zip | |
pinctrl: imx: Introduce pinctrl driver for i.MX6
Introduce pinctrl for i.MX6
1. pinctrl-imx.c is for common usage. It's used by i.MX6/7.
2. Add PINCTRL_IMX PINCTRL_IMX6 Kconfig entry.
3. To the pinctrl_ops implementation, only set_state is implemented.
To i.MX6/7, the pinctrl dts entry is as following:
&iomuxc {
pinctrl-names = "default";
pinctrl_csi1: csi1grp {
fsl,pins = <
MX6UL_PAD_CSI_MCLK__CSI_MCLK 0x1b088
MX6UL_PAD_CSI_PIXCLK__CSI_PIXCLK 0x1b088
MX6UL_PAD_CSI_VSYNC__CSI_VSYNC 0x1b088
>;
};
[.....]
};
there is no property named function or groups. So pinctrl_generic_set_state
can not be used here.
5. This driver is a simple implementation for i.mx iomux controller,
only parse the fsl,pins property and write value to registers.
6. With DEBUG enabled, we can see log when "i2c bus 0":
"
set_state_simple op missing
imx_pinctrl_set_state: i2c1grp
mux_reg 0x14c, conf_reg 0x3bc, input_reg 0x5d8, mux_mode 0x0, input_val 0x1, config_val 0x4000007f
write mux: offset 0x14c val 0x10
select_input: offset 0x5d8 val 0x1
write config: offset 0x3bc val 0x7f
mux_reg 0x148, conf_reg 0x3b8, input_reg 0x5d4, mux_mode 0x0, input_val 0x1, config_val 0x4000007f
write mux: offset 0x148 val 0x10
select_input: offset 0x5d4 val 0x1
write config: offset 0x3b8 val 0x7f
"
this means imx6 pinctrl driver works as expected.
Signed-off-by: Peng Fan <van.freenix@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/pinctrl/Makefile')
| -rw-r--r-- | drivers/pinctrl/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile index b4f46500eb..d7b6180ec0 100644 --- a/drivers/pinctrl/Makefile +++ b/drivers/pinctrl/Makefile @@ -5,6 +5,7 @@ obj-y += pinctrl-uclass.o obj-$(CONFIG_$(SPL_)PINCTRL_GENERIC) += pinctrl-generic.o +obj-y += nxp/ obj-$(CONFIG_ARCH_ROCKCHIP) += rockchip/ obj-$(CONFIG_PINCTRL_SANDBOX) += pinctrl-sandbox.o |
