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ARM: dts: imx6q{dl}: fix the pin conflict between SPI and WEIM 

In the imx6q-sabreauto and imx6dl-sabreauto boards,
the pin MX6Q{DL}_PAD_EIM_D19 is used as a GPIO for SPI NOR, but
it is used as a data pin for the WEIM NOR.

In order to fix the conflict, this patch removes the pin from the hog,
and adds a new board-level pinctrl: pinctrl_ecspi1_sabreauto.

The SPI NOR selects this pinctrl_ecspi1_sabreauto when it is enabled.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
hifive-unleashed-5.1
Huang Shijie 2013-05-28 14:20:08 +08:00 committed by Shawn Guo
parent 85bf6d4e4b
commit 72eb4cca78
3 changed files with 17 additions and 3 deletions
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9
arch/arm/boot/dts/imx6dl-sabreauto.dts
View File

@ -25,7 +25,14 @@
fsl,pins = <
MX6DL_PAD_NANDF_CS2__GPIO6_IO15 0x80000000
MX6DL_PAD_SD2_DAT2__GPIO1_IO13 0x80000000
MX6DL_PAD_EIM_D19__GPIO3_IO19 0x80000000
>;
};
};
ecspi1 {
pinctrl_ecspi1_sabreauto: ecspi1-sabreauto {
fsl,pins = <
MX6DL_PAD_EIM_D19__GPIO3_IO19 0x80000000
>;
};
};

9
arch/arm/boot/dts/imx6q-sabreauto.dts
View File

@ -29,7 +29,14 @@
fsl,pins = <
MX6Q_PAD_NANDF_CS2__GPIO6_IO15 0x80000000
MX6Q_PAD_SD2_DAT2__GPIO1_IO13 0x80000000
MX6Q_PAD_EIM_D19__GPIO3_IO19 0x80000000
>;
};
};
ecspi1 {
pinctrl_ecspi1_sabreauto: ecspi1-sabreauto {
fsl,pins = <
MX6Q_PAD_EIM_D19__GPIO3_IO19 0x80000000
>;
};
};

2
arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
View File

@ -20,7 +20,7 @@
fsl,spi-num-chipselects = <1>;
cs-gpios = <&gpio3 19 0>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ecspi1_1>;
pinctrl-0 = <&pinctrl_ecspi1_1 &pinctrl_ecspi1_sabreauto>;
status = "disabled"; /* pin conflict with WEIM NOR */
flash: m25p80@0 {