On 19/02/24 13:29, Sinthu Raja wrote:
> From: Sinthu Raja <[email protected]>
>
> AM68 SK has an OSPI NOR flash on its SOM connected to OSPI0 instance.
> Enable support for the same. Also, describe the OSPI flash partition
> information through the device tree, according to the offsets in the
> bootloader.
>
> Signed-off-by: Sinthu Raja <[email protected]>
> ---
>
> Changes in V2:
> =============
> 1. Address review comments
> a. remove pin E20, which is not connected.
>
> V1: https://patchwork.kernel.org/project/linux-arm-kernel/patch/[email protected]/
>
> arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi | 78 ++++++++++++++++++++++
> 1 file changed, 78 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi b/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi
> index 0f4a5da0ebc4..afaf702cfc9d 100644
> --- a/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi
> @@ -130,6 +130,24 @@ rtos_ipc_memory_region: ipc-memories@a8000000 {
> };
> };
>
> +&wkup_pmx0 {
> + mcu_fss0_ospi0_pins_default: mcu-fss0-ospi0-pins-default {
pinmux nodes should end with -pins ^^^^^^
Please run make dtbs_check and fix the issues pointed out
> + pinctrl-single,pins = <
> + J721S2_WKUP_IOPAD(0x000, PIN_OUTPUT, 0) /* (D19) MCU_OSPI0_CLK */
> + J721S2_WKUP_IOPAD(0x02c, PIN_OUTPUT, 0) /* (F15) MCU_OSPI0_CSn0 */
> + J721S2_WKUP_IOPAD(0x00c, PIN_INPUT, 0) /* (C19) MCU_OSPI0_D0 */
> + J721S2_WKUP_IOPAD(0x010, PIN_INPUT, 0) /* (F16) MCU_OSPI0_D1 */
> + J721S2_WKUP_IOPAD(0x014, PIN_INPUT, 0) /* (G15) MCU_OSPI0_D2 */
> + J721S2_WKUP_IOPAD(0x018, PIN_INPUT, 0) /* (F18) MCU_OSPI0_D3 */
> + J721S2_WKUP_IOPAD(0x01c, PIN_INPUT, 0) /* (E19) MCU_OSPI0_D4 */
> + J721S2_WKUP_IOPAD(0x020, PIN_INPUT, 0) /* (G19) MCU_OSPI0_D5 */
> + J721S2_WKUP_IOPAD(0x024, PIN_INPUT, 0) /* (F19) MCU_OSPI0_D6 */
> + J721S2_WKUP_IOPAD(0x028, PIN_INPUT, 0) /* (F20) MCU_OSPI0_D7 */
> + J721S2_WKUP_IOPAD(0x008, PIN_INPUT, 0) /* (E18) MCU_OSPI0_DQS */
> + >;
> + };
> +};
> +
> &wkup_pmx2 {
> wkup_i2c0_pins_default: wkup-i2c0-default-pins {
> pinctrl-single,pins = <
> @@ -152,6 +170,66 @@ eeprom@51 {
> };
> };
>
> +&ospi0 {
> + status = "okay";
> + pinctrl-names = "default";
> + pinctrl-0 = <&mcu_fss0_ospi0_pins_default>;
> +
> + flash@0 {
> + compatible = "jedec,spi-nor";
> + reg = <0x0>;
> + 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 = <4>;
> +
> + partitions {
> + compatible = "fixed-partitions";
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + partition@0 {
> + label = "ospi.tiboot3";
> + reg = <0x0 0x80000>;
Should this be 1MB similar to comment at [0]
[0] lore.kernel.org/r/[email protected]
> + };
> +
> + 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>;
> + };
> + };
> + };
> +};
> +
> &mailbox0_cluster0 {
> status = "okay";
> interrupts = <436>;
--
Regards
Vignesh