* [PATCH V3] arm64: dts: ti: k3-am68-sk-som: Add support for OSPI flash
@ 2024-02-26 9:52 Sinthu Raja
2024-03-08 8:10 ` Kumar, Udit
0 siblings, 1 reply; 2+ messages in thread
From: Sinthu Raja @ 2024-02-26 9:52 UTC (permalink / raw)
To: Nishanth Menon, Tero Kristo, Vignesh Raghavendra, Udit Kumar
Cc: linux-arm-kernel, devicetree, linux-kernel, Sinthu Raja
From: Sinthu Raja <sinthu.raja@ti.com>
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 <sinthu.raja@ti.com>
---
Changes in V3:
Address review comments:
a. Fix the make dtbs_check error related to ospi pinctrl
b. Increase the partition 0 size to 1MB and update the following
partitions start address accordingly.
V2: https://lore.kernel.org/linux-arm-kernel/20240219075932.6458-1-sinthu.raja@ti.com/
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..d3e869c250a2 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 {
+ 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 0x100000>;
+ };
+
+ partition@100000 {
+ label = "ospi.tispl";
+ reg = <0x100000 0x200000>;
+ };
+
+ partition@300000 {
+ label = "ospi.u-boot";
+ reg = <0x300000 0x400000>;
+ };
+
+ partition@700000 {
+ label = "ospi.env";
+ reg = <0x700000 0x40000>;
+ };
+
+ partition@740000 {
+ label = "ospi.env.backup";
+ reg = <0x740000 0x40000>;
+ };
+
+ partition@800000 {
+ label = "ospi.rootfs";
+ reg = <0x800000 0x37c0000>;
+ };
+
+ partition@3fc0000 {
+ label = "ospi.phypattern";
+ reg = <0x3fc0000 0x40000>;
+ };
+ };
+ };
+};
+
&mailbox0_cluster0 {
status = "okay";
interrupts = <436>;
--
2.34.1
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [PATCH V3] arm64: dts: ti: k3-am68-sk-som: Add support for OSPI flash
2024-02-26 9:52 [PATCH V3] arm64: dts: ti: k3-am68-sk-som: Add support for OSPI flash Sinthu Raja
@ 2024-03-08 8:10 ` Kumar, Udit
0 siblings, 0 replies; 2+ messages in thread
From: Kumar, Udit @ 2024-03-08 8:10 UTC (permalink / raw)
To: Sinthu Raja, Nishanth Menon, Tero Kristo, Vignesh Raghavendra
Cc: linux-arm-kernel, devicetree, linux-kernel, Sinthu Raja
Hi Sinthu,
On 2/26/2024 3:22 PM, Sinthu Raja wrote:
> From: Sinthu Raja <sinthu.raja@ti.com>
>
> 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 <sinthu.raja@ti.com>
> ---
>
> Changes in V3:
> Address review comments:
> a. Fix the make dtbs_check error related to ospi pinctrl
> b. Increase the partition 0 size to 1MB and update the following
> partitions start address accordingly.
>
> V2: https://lore.kernel.org/linux-arm-kernel/20240219075932.6458-1-sinthu.raja@ti.com/
>
> 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..d3e869c250a2 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 {
> + 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 */
I see there is one pin SOC_MCU_OSPI0_INT# connected over F17 GPIO.
Please suggest, if this is being used ?
> + >;
> + };
> +};
> +
> &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 0x100000>;
> + };
> +
> + partition@100000 {
> + label = "ospi.tispl";
> + reg = <0x100000 0x200000>;
> + };
> +
> + partition@300000 {
> + label = "ospi.u-boot";
> + reg = <0x300000 0x400000>;
> + };
> +
> + partition@700000 {
> + label = "ospi.env";
> + reg = <0x700000 0x40000>;
> + };
> +
> + partition@740000 {
> + label = "ospi.env.backup";
> + reg = <0x740000 0x40000>;
> + };
> +
> + partition@800000 {
> + label = "ospi.rootfs";
> + reg = <0x800000 0x37c0000>;
> + };
> +
> + partition@3fc0000 {
> + label = "ospi.phypattern";
> + reg = <0x3fc0000 0x40000>;
> + };
> + };
> + };
> +};
> +
> &mailbox0_cluster0 {
> status = "okay";
> interrupts = <436>;
^ permalink raw reply [flat|nested] 2+ messages in thread
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2024-02-26 9:52 [PATCH V3] arm64: dts: ti: k3-am68-sk-som: Add support for OSPI flash Sinthu Raja
2024-03-08 8:10 ` Kumar, Udit
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