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ARM: dts: am437x: cm-t43: add spi-flash support

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CM-T43 has an on-board 2MB SPI-flash which stores U-Boot and the U-Boot
environment. Add it to the device tree.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Benoit Cousson <bcousson@baylibre.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Dmitry Lifshitz <lifshitz@compulab.co.il>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Nikita Kiryanov 2015-12-01 15:54:59 +02:00 committed by Tony Lindgren
parent 4bbbd23c05
commit 81fb61fc2e
1 changed files with 40 additions and 0 deletions
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40
arch/arm/boot/dts/am437x-cm-t43.dts
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@ -44,6 +44,15 @@
AM4372_IOPAD(0x98c, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0) /* i2c0_scl.i2c0_scl */
>;
};
spi0_pins: pinmux_spi0_pins {
pinctrl-single,pins = <
AM4372_IOPAD(0x950, PIN_INPUT | MUX_MODE0) /* spi0_sclk.spi0_sclk */
AM4372_IOPAD(0x954, PIN_INPUT | MUX_MODE0) /* spi0_d0.spi0_d0 */
AM4372_IOPAD(0x958, PIN_OUTPUT | MUX_MODE0) /* spi0_d1.spi0_d1 */
AM4372_IOPAD(0x95C, PIN_OUTPUT | MUX_MODE0) /* spi0_cs0.spi0_cs0 */
>;
};
};
&i2c0 {
@ -146,6 +155,37 @@
status = "okay";
};
&spi0 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&spi0_pins>;
dmas = <&edma 16
&edma 17>;
dma-names = "tx0", "rx0";
flash: w25q64cvzpig@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <20000000>;
partition@0 {
label = "uboot";
reg = <0x0 0xc0000>;
};
partition@c0000 {
label = "uboot environment";
reg = <0xc0000 0x40000>;
};
partition@100000 {
label = "reserved";
reg = <0x100000 0x100000>;
};
};
};
&uart0 {
status = "okay";
};