@@ -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";
};
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> --- Changes in V2: - Removed unnecessary line break after pinmux_spi0_pins section. arch/arm/boot/dts/am437x-cm-t43.dts | 40 +++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+)