Commit 61b2f7b1 authored by Matthias Schiffer's avatar Matthias Schiffer Committed by Shawn Guo
Browse files

ARM: dts: imx7-tqma7: add SPI-NOR flash 



The SPI-NOR flash on the SoM was missing from the device tree.

The TQMa7 as a designated QSPI_RESET# pin, however depending on the
hardware configuration the pin may be unconnected, or be used for a
different purpose. With this in mind, we mux the pin as a pullup and
define an input hog for it, but keep it a separate pin group, so that it
is easy for dependent Device Trees to modify the configuration.

Signed-off-by: default avatarMatthias Schiffer <matthias.schiffer@ew.tq-group.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent bac185ef

arch/arm/boot/dts/imx7-tqma7.dtsi

+43 −0
Original line number Diff line number Diff line
@@ -19,6 +19,16 @@ 
	cpu-supply = <&sw1a_reg>;

};



&gpio2 {

	/* Configured as pullup by QSPI pin group */

	qspi-reset-hog {

		gpio-hog;

		gpios = <4 GPIO_ACTIVE_LOW>;

		input;

		line-name = "qspi-reset";

	};

};



&i2c1 {

	pinctrl-names = "default";

	pinctrl-0 = <&pinctrl_i2c1>;
@@ -160,6 +170,25 @@ 
		>;

	};



	pinctrl_qspi: qspigrp {

		fsl,pins = <

			MX7D_PAD_EPDC_DATA00__QSPI_A_DATA0	0x5A

			MX7D_PAD_EPDC_DATA01__QSPI_A_DATA1	0x5A

			MX7D_PAD_EPDC_DATA02__QSPI_A_DATA2	0x5A

			MX7D_PAD_EPDC_DATA03__QSPI_A_DATA3	0x5A

			MX7D_PAD_EPDC_DATA05__QSPI_A_SCLK	0x11

			MX7D_PAD_EPDC_DATA06__QSPI_A_SS0_B	0x54

			MX7D_PAD_EPDC_DATA07__QSPI_A_SS1_B	0x54

		>;

	};



	pinctrl_qspi_reset: qspi_resetgrp {

		fsl,pins = <

			/* #QSPI_RESET */

			MX7D_PAD_EPDC_DATA04__GPIO2_IO4		0x52

		>;

	};



	pinctrl_usdhc3: usdhc3grp {

		fsl,pins = <

			MX7D_PAD_SD3_CMD__SD3_CMD		0x59
@@ -217,6 +246,20 @@ 
	};

};



&qspi {

	pinctrl-names = "default";

	pinctrl-0 = <&pinctrl_qspi &pinctrl_qspi_reset>;

	status = "okay";



	flash0: flash@0 {

		compatible = "jedec,spi-nor";

		reg = <0>;

		spi-max-frequency = <29000000>;

		spi-rx-bus-width = <4>;

		spi-tx-bus-width = <4>;

	};

};



&sdma {

	status = "okay";

};