Hi Anil,
On 12/7/2012 3:57 PM, Kumar, Anil wrote:
> For DT, DaVinci platform can use pinctrl-single driver for handling
> padconf registers.
>
> Enable PINCTRL Kconfig for all DaVinci platform. Add required
> pinctrl DT entries in da850 dts file.
>
> Test procedure
> 1)Populate DT file with NAND node information.
> 2)Populate board DT file with pinmux information for NAND.
> 3)Boot and confirm NAND is detected by the kernel.
> 4)cat /proc/mtd to show partitions.
>
> Signed-off-by: Kumar, Anil <anilkumar.v@xxxxxx>
> ---
> :000000 100644 0000000... f999d9e... A Documentation/devicetree/bindings/arm/davinci/pinctrl.txt
> :100644 100644 06e0adf... 54a5405... M arch/arm/Kconfig
> :100644 100644 37dc5a3... 8cac9d2... M arch/arm/boot/dts/da850-evm.dts
> :100644 100644 fbada87... 94471bc... M arch/arm/boot/dts/da850.dtsi
> :100644 100644 f292239... 0892db4... M arch/arm/configs/da8xx_omapl_defconfig
> .../devicetree/bindings/arm/davinci/pinctrl.txt | 29 ++++++++++++++++++++
> arch/arm/Kconfig | 1 +
> arch/arm/boot/dts/da850-evm.dts | 3 ++
> arch/arm/boot/dts/da850.dtsi | 10 +++++++
> arch/arm/configs/da8xx_omapl_defconfig | 1 +
> 5 files changed, 44 insertions(+), 0 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/arm/davinci/pinctrl.txt b/Documentation/devicetree/bindings/arm/davinci/pinctrl.txt
> new file mode 100644
> index 0000000..f999d9e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/davinci/pinctrl.txt
> @@ -0,0 +1,29 @@
> +* Texas Instruments Davinci pinctrl-single
> +
> +This file provides information, what the device node for the
> +davinci pinctrl-single interface contain.
> +
> +Required properties:
> +- compatible: "pinctrl-single";
> +
> +- reg : offset and length of the register set for the mux registers
> +
> +- pinctrl-single,bit-per-mux: mask of allowed pinmux function bits in the
> + pinmux register
> +
> +- pinctrl-single,register-width: pinmux register access width in bits
> +
> +- pinctrl-single,function-mask: mask of allowed pinmux function bits in
> + the pinmux register
> +
> +Example:
> +pmx_core:pinmux@14120 {
> + compatible = "pinctrl-single";
> + reg = <0x14120 0x50>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + pinctrl-single,bit-per-mux;
> + pinctrl-single,register-width = <32>;
> + pinctrl-single,function-mask = <0xffffffff>;
> +};
These bindings are already documented as part of
Documentation/devicetree/bindings/pinctrl/pinctrl-single.txt. No need to
repeat.
> +~
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 06e0adf..54a5405 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -924,6 +924,7 @@ config ARCH_DAVINCI
> select GENERIC_IRQ_CHIP
> select HAVE_IDE
> select NEED_MACH_GPIO_H
> + select PINCTRL
No need to force this across DaVinci. You can select only for MACH_DA8XX_DT.
> select USE_OF
> select ZONE_DMA
> help
> diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts
> index 37dc5a3..8cac9d2 100644
> --- a/arch/arm/boot/dts/da850-evm.dts
> +++ b/arch/arm/boot/dts/da850-evm.dts
> @@ -15,6 +15,9 @@
> model = "DA850/AM1808/OMAP-L138 EVM";
>
> soc {
> + pmx_core:pinmux@14120 {
'pmx_core:pinmux@1c14120' instead like the way uart is defined?
> + status = "okay";
> + };
> serial0: serial@1c42000 {
> status = "okay";
> };
> diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
> index fbada87..94471bc 100644
> --- a/arch/arm/boot/dts/da850.dtsi
> +++ b/arch/arm/boot/dts/da850.dtsi
> @@ -29,6 +29,16 @@
> #size-cells = <1>;
> ranges = <0x0 0x01c00000 0x400000>;
>
> + pmx_core:pinmux@14120 {
> + compatible = "pinctrl-single";
> + reg = <0x14120 0x50>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + pinctrl-single,bit-per-mux;
> + pinctrl-single,register-width = <32>;
> + pinctrl-single,function-mask = <0xffffffff>;
> + status = "disabled";
> + };
> serial0: serial@1c42000 {
> compatible = "ns16550a";
> reg = <0x42000 0x100>;
> diff --git a/arch/arm/configs/da8xx_omapl_defconfig b/arch/arm/configs/da8xx_omapl_defconfig
> index f292239..0892db4 100644
> --- a/arch/arm/configs/da8xx_omapl_defconfig
> +++ b/arch/arm/configs/da8xx_omapl_defconfig
I would like the defconfig changes to be separated out into a different
patch.
Thanks,
Sekhar
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