@@ -737,3 +737,43 @@ dpi1_out: endpoint {
};
};
};
+
+&fss {
+ status = "okay";
+};
+
+&ospi0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&ospi0_pins_default>;
+
+ flash@0 {
+ compatible = "spi-nand";
+ reg = <0>;
+ spi-tx-bus-width = <8>;
+ spi-rx-bus-width = <8>;
+ spi-max-frequency = <25000000>;
+ cdns,tshsl-ns = <60>;
+ cdns,tsd2d-ns = <60>;
+ cdns,tchsh-ns = <60>;
+ cdns,tslch-ns = <60>;
+ cdns,read-delay = <2>;
+ };
+};
+
+&main_pmx0 {
+ ospi0_pins_default: ospi0-default-pins {
+ pinctrl-single,pins = <
+ AM62AX_IOPAD(0x000, PIN_OUTPUT, 0) /* (H24) OSPI0_CLK */
+ AM62AX_IOPAD(0x02c, PIN_OUTPUT, 0) /* (F23) OSPI0_CSn0 */
+ AM62AX_IOPAD(0x00c, PIN_INPUT, 0) /* (E25) OSPI0_D0 */
+ AM62AX_IOPAD(0x010, PIN_INPUT, 0) /* (G24) OSPI0_D1 */
+ AM62AX_IOPAD(0x014, PIN_INPUT, 0) /* (F25) OSPI0_D2 */
+ AM62AX_IOPAD(0x018, PIN_INPUT, 0) /* (F24) OSPI0_D3 */
+ AM62AX_IOPAD(0x01c, PIN_INPUT, 0) /* (J23) OSPI0_D4 */
+ AM62AX_IOPAD(0x020, PIN_INPUT, 0) /* (J25) OSPI0_D5 */
+ AM62AX_IOPAD(0x024, PIN_INPUT, 0) /* (H25) OSPI0_D6 */
+ AM62AX_IOPAD(0x028, PIN_INPUT, 0) /* (J22) OSPI0_D7 */
+ AM62AX_IOPAD(0x008, PIN_INPUT, 0) /* (J24) OSPI0_DQS */
+ >;
+ };
+};
Describe the octal SPI NAND available on the low-power starter kit. The pinctrl configuration comes from TI fork. With the current mainline tree, we currently get the following performances: eraseblock write speed is 7507 KiB/s eraseblock read speed is 15802 KiB/s page write speed is 7551 KiB/s page read speed is 15609 KiB/s 2 page write speed is 7551 KiB/s 2 page read speed is 15609 KiB/s erase speed is 284444 KiB/s 2x multi-block erase speed is 512000 KiB/s Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> --- arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 40 +++++++++++++++++++++++++ 1 file changed, 40 insertions(+)