Re: [PATCH v3 1/1] riscv: dts: thead: add basic spi node

Kanak Shilledar
2024-07-12T08:41:39Z

Hi,
Any updates on this patch?

Thanks and Regards,
Kanak Shilledar

On Fri, Jul 5, 2024 at 3:05 PM Kanak Shilledar <kanakshilledar@gmail.com> wrote:
>
> created spi0 node with fixed clock. the spi0 node
> uses synopsis designware driver and has the following
> compatible "snps,dw-apb-ssi". the spi0 node is connected
> to a SPI NOR flash pad which is left unpopulated on the back
> side of the board.
>
> Acked-by: Drew Fustini <drew@pdp7.com>
> Signed-off-by: Kanak Shilledar <kanakshilledar@gmail.com>
> ---
> Changes in v3:
> - Changed the position of "spi" to come after "serial" in
> aliases for both the boards.
> - Added Acked-by tag.
> Changes in v2:
> - Separated from a single patch file.
> ---
> .../boot/dts/thead/th1520-beaglev-ahead.dts | 9 +++++++++
> .../boot/dts/thead/th1520-lichee-module-4a.dtsi | 4 ++++
> .../riscv/boot/dts/thead/th1520-lichee-pi-4a.dts | 5 +++++
> arch/riscv/boot/dts/thead/th1520.dtsi | 16 ++++++++++++++++
> 4 files changed, 34 insertions(+)
>
> diff --git a/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
> index d9b4de9e4757..b4d2e1d69bdb 100644
> --- a/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
> +++ b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
> @@ -23,6 +23,7 @@ aliases {
> serial3 = &uart3;
> serial4 = &uart4;
> serial5 = &uart5;
> + spi0 = &spi0;
> };
>
> chosen {
> @@ -52,6 +53,10 @@ &sdhci_clk {
> clock-frequency = <198000000>;
> };
>
> +&spi_clk {
> + clock-frequency = <396000000>;
> +};
> +
> &uart_sclk {
> clock-frequency = <100000000>;
> };
> @@ -79,3 +84,7 @@ &sdio0 {
> &uart0 {
> status = "okay";
> };
> +
> +&spi0 {
> + status = "okay";
> +};
> diff --git a/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi b/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
> index 1365d3a512a3..6939bd36560c 100644
> --- a/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
> +++ b/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
> @@ -33,6 +33,10 @@ &sdhci_clk {
> clock-frequency = <198000000>;
> };
>
> +&spi_clk {
> + clock-frequency = <396000000>;
> +};
> +
> &uart_sclk {
> clock-frequency = <100000000>;
> };
> diff --git a/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts b/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts
> index 9a3884a73e13..7738d2895c5a 100644
> --- a/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts
> +++ b/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts
> @@ -20,6 +20,7 @@ aliases {
> serial3 = &uart3;
> serial4 = &uart4;
> serial5 = &uart5;
> + spi0 = &spi0;
> };
>
> chosen {
> @@ -30,3 +31,7 @@ chosen {
> &uart0 {
> status = "okay";
> };
> +
> +&spi0 {
> + status = "okay";
> +};
> diff --git a/arch/riscv/boot/dts/thead/th1520.dtsi b/arch/riscv/boot/dts/thead/th1520.dtsi
> index d2fa25839012..f962de663e7e 100644
> --- a/arch/riscv/boot/dts/thead/th1520.dtsi
> +++ b/arch/riscv/boot/dts/thead/th1520.dtsi
> @@ -140,6 +140,12 @@ apb_clk: apb-clk-clock {
> #clock-cells = <0>;
> };
>
> + spi_clk: spi-clock {
> + compatible = "fixed-clock";
> + clock-output-names = "spi_clk";
> + #clock-cells = <0>;
> + };
> +
> uart_sclk: uart-sclk-clock {
> compatible = "fixed-clock";
> clock-output-names = "uart_sclk";
> @@ -183,6 +189,16 @@ clint: timer@ffdc000000 {
> <&cpu3_intc 3>, <&cpu3_intc 7>;
> };
>
> + spi0: spi@ffe700c000 {
> + compatible = "thead,th1520-spi", "snps,dw-apb-ssi";
> + reg = <0xff 0xe700c000 0x0 0x1000>;
> + interrupts = <54 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&spi_clk>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + status = "disabled";
> + };
> +
> uart0: serial@ffe7014000 {
> compatible = "snps,dw-apb-uart";
> reg = <0xff 0xe7014000 0x0 0x100>;
> --
> 2.45.2