Tool/software:
#1. What change needed to support a OSPI NAND flash? The SK board configuration based on OSPI NOR flash. Need a example.
ospi0_pins_default: ospi0-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x0000, PIN_OUTPUT, 0) /* (H24) OSPI0_CLK */
AM62X_IOPAD(0x002c, PIN_OUTPUT, 0) /* (F23) OSPI0_CSn0 */
AM62X_IOPAD(0x000c, PIN_OUTPUT, 0) /* (E25) OSPI0_D0 */
AM62X_IOPAD(0x0010, PIN_OUTPUT, 0) /* (G24) OSPI0_D1 */
AM62X_IOPAD(0x0014, PIN_OUTPUT, 0) /* (F25) OSPI0_D2 */
AM62X_IOPAD(0x0018, PIN_OUTPUT, 0) /* (F24) OSPI0_D3 */
AM62X_IOPAD(0x01c, PIN_INPUT, 0) /* (J23) OSPI0_D4 */
AM62X_IOPAD(0x020, PIN_INPUT, 0) /* (J25) OSPI0_D5 */
AM62X_IOPAD(0x024, PIN_INPUT, 0) /* (H25) OSPI0_D6 */
AM62X_IOPAD(0x028, PIN_INPUT, 0) /* (J22) OSPI0_D7 */
AM62X_IOPAD(0x008, PIN_INPUT, 0) /* (J24) OSPI0_DQS */
>;
};
&ospi0 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&ospi0_pins_default>;
flash@0{
compatible = "spi-nand";
reg = <0x0>;
spi-tx-bus-width = <8>;
spi-rx-bus-width = <8>;
spi-max-frequency = <25000000>; /* 25000000 */
cdns,tshsl-ns = <60>;
cdns,tsd2d-ns = <60>;
cdns,tchsh-ns = <60>;
cdns,tslch-ns = <60>;
cdns,read-delay = <4>;
cdns,phy-mode;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "ospi.tiboot3";
reg = <0x0 0x80000>;
};
partition@80000 {
label = "ospi.tispl";
reg = <0x80000 0x200000>;
};
partition@280000 {
label = "ospi.u-boot";
reg = <0x280000 0x400000>;
};
partition@680000 {
label = "ospi.env";
reg = <0x680000 0x40000>;
};
partition@6c0000 {
label = "ospi.env.backup";
reg = <0x6c0000 0x40000>;
};
partition@800000 {
label = "ospi.rootfs";
reg = <0x800000 0x37c0000>;
};
partition@3fc0000 {
label = "ospi.phypattern";
reg = <0x3fc0000 0x40000>;
};
};
};
};
on customer's board with upper configuration in SDK9.1. got below with mtd list"
#2. According to this post, need to modify source code to support a new OSPI NAND flash part number? How to adapt W35N04JWTBIF?
#3. There is not mtd command in my uboot, (SDK9.2), need specific configuration in uboot?
=> mtd list
Unknown command 'mtd' - try 'help'
=>
#4. Is there difference between OSPI NOR and OSPI NAND to user? same command?
