On 24/02/23 4:41 pm, Krzysztof Kozlowski wrote:
> On 24/02/2023 11:24, Ravi Gunasekaran wrote:
>> From: Aswath Govindraju <a-govindraju@xxxxxx>
>>
>> J721S2 has an OSPI NOR flash on its SOM connected the OSPI0 instance and a
>> QSPI NOR flash on the common processor board connected to the OSPI1
>> instance. Add support for the same
>>
>> Reviewed-by: Vaishnav Achath <vaishnav.a@xxxxxx>
>> Signed-off-by: Aswath Govindraju <a-govindraju@xxxxxx>
>> Signed-off-by: Matt Ranostay <mranostay@xxxxxx>
>> Signed-off-by: Ravi Gunasekaran <r-gunasekaran@xxxxxx>
>> ---
>> Changes from v10:
>> * Removed Link tag from commit message
>>
[...]
>>
>> .../dts/ti/k3-j721s2-common-proc-board.dts | 39 +++++++++++++++++
>> arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi | 43 +++++++++++++++++++
>> 2 files changed, 82 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
>> index fa38940fe6cd..76b420379645 100644
>> --- a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
>> +++ b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
>> @@ -206,6 +206,20 @@
>> J721S2_WKUP_IOPAD(0x0c8, PIN_INPUT, 7) /* (C28) WKUP_GPIO0_2 */
>> >;
>> };
>> +
>> + mcu_fss0_ospi1_pins_default: mcu-fss0-ospi1-pins-default {
>> + pinctrl-single,pins = <
>> + J721S2_WKUP_IOPAD(0x040, PIN_OUTPUT, 0) /* (A19) MCU_OSPI1_CLK */
>> + J721S2_WKUP_IOPAD(0x05c, PIN_OUTPUT, 0) /* (D20) MCU_OSPI1_CSn0 */
>> + J721S2_WKUP_IOPAD(0x060, PIN_OUTPUT, 0) /* (C21) MCU_OSPI1_CSn1 */
>> + J721S2_WKUP_IOPAD(0x04c, PIN_INPUT, 0) /* (D21) MCU_OSPI1_D0 */
>> + J721S2_WKUP_IOPAD(0x050, PIN_INPUT, 0) /* (G20) MCU_OSPI1_D1 */
>> + J721S2_WKUP_IOPAD(0x054, PIN_INPUT, 0) /* (C20) MCU_OSPI1_D2 */
>> + J721S2_WKUP_IOPAD(0x058, PIN_INPUT, 0) /* (A20) MCU_OSPI1_D3 */
>> + J721S2_WKUP_IOPAD(0x048, PIN_INPUT, 0) /* (B19) MCU_OSPI1_DQS */
>> + J721S2_WKUP_IOPAD(0x044, PIN_INPUT, 0) /* (B20) MCU_OSPI1_LBCLKO */
>> + >;
>> + };
>> };
>>
>> &main_gpio2 {
>> @@ -347,6 +361,31 @@
>> maximum-speed = "high-speed";
>> };
>>
>> +&fss {
>> + status = "okay";
>
> Where is the pinmux usage you said is required for the bus?
Will remove the comment in [3/8] in the next series.
>
>> +};
>> +
>> +&ospi1 {
>> + status = "okay";
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&mcu_fss0_ospi1_pins_default>;
>> +
>> + flash@0{
>> + compatible = "jedec,spi-nor";
>> + reg = <0x0>;
>> + spi-tx-bus-width = <1>;
>> + spi-rx-bus-width = <4>;
>> + spi-max-frequency = <40000000>;
>> + cdns,tshsl-ns = <60>;
>> + cdns,tsd2d-ns = <60>;
>> + cdns,tchsh-ns = <60>;
>> + cdns,tslch-ns = <60>;
>> + cdns,read-delay = <2>;
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>
> Are you sure these are correct? Aren't they marked as deprecated?
Right. I found that "address-cells" and "size-cells" are deprecated.
I will remove these in the next series.
Thank you for reviewing the patch.
>
>
>
> Best regards,
> Krzysztof
>
--
Regards,
Ravi
