[v1] Add Sipeed Lichee Pi 4A RISC-V board support

[PATCH 4/5] riscv: dts: thead: add sipeed Lichee Pi 4A board device tree

Posted by Jisheng Zhang 2 years, 9 months ago

Sipeed's Lichee Pi 4A development board uses Lichee Module 4A core
module which is powered by T-HEAD's light(a.k.a TH1520) SoC. Add
minimal device tree files for the core module and the development
board.

Support basic uart/gpio/dmac drivers, so supports booting to a basic
shell.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
---
 arch/riscv/boot/dts/Makefile                  |  1 +
 arch/riscv/boot/dts/thead/Makefile            |  2 +
 .../dts/thead/light-lichee-module-4a.dtsi     | 38 +++++++++++++++++++
 .../boot/dts/thead/light-lichee-pi-4a.dts     | 32 ++++++++++++++++
 4 files changed, 73 insertions(+)
 create mode 100644 arch/riscv/boot/dts/thead/Makefile
 create mode 100644 arch/riscv/boot/dts/thead/light-lichee-module-4a.dtsi
 create mode 100644 arch/riscv/boot/dts/thead/light-lichee-pi-4a.dts

diff --git a/arch/riscv/boot/dts/Makefile b/arch/riscv/boot/dts/Makefile
index f0d9f89054f8..1e884868ccba 100644
--- a/arch/riscv/boot/dts/Makefile
+++ b/arch/riscv/boot/dts/Makefile
@@ -2,6 +2,7 @@
 subdir-y += allwinner
 subdir-y += sifive
 subdir-y += starfive
+subdir-y += thead
 subdir-y += canaan
 subdir-y += microchip
 subdir-y += renesas
diff --git a/arch/riscv/boot/dts/thead/Makefile b/arch/riscv/boot/dts/thead/Makefile
new file mode 100644
index 000000000000..9e00acc714cc
--- /dev/null
+++ b/arch/riscv/boot/dts/thead/Makefile
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
+dtb-$(CONFIG_ARCH_THEAD) += light-lichee-pi-4a.dtb
diff --git a/arch/riscv/boot/dts/thead/light-lichee-module-4a.dtsi b/arch/riscv/boot/dts/thead/light-lichee-module-4a.dtsi
new file mode 100644
index 000000000000..24c9971e0fb5
--- /dev/null
+++ b/arch/riscv/boot/dts/thead/light-lichee-module-4a.dtsi
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023 Jisheng Zhang <jszhang@kernel.org>
+ */
+
+/dts-v1/;
+
+#include "light.dtsi"
+
+/ {
+	model = "Sipeed Lichee Module 4A";
+	compatible = "sipeed,lichee-module-4a", "thead,light";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x00000000 0x2 0x00000000>;
+	};
+};
+
+&osc {
+	clock-frequency = <24000000>;
+};
+
+&osc_32k {
+	clock-frequency = <32768>;
+};
+
+&apb_clk {
+	clock-frequency = <62500000>;
+};
+
+&uart_sclk {
+	clock-frequency = <100000000>;
+};
+
+&dmac0 {
+	status = "okay";
+};
diff --git a/arch/riscv/boot/dts/thead/light-lichee-pi-4a.dts b/arch/riscv/boot/dts/thead/light-lichee-pi-4a.dts
new file mode 100644
index 000000000000..4f0ba2149d2d
--- /dev/null
+++ b/arch/riscv/boot/dts/thead/light-lichee-pi-4a.dts
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023 Jisheng Zhang <jszhang@kernel.org>
+ */
+
+#include "light-lichee-module-4a.dtsi"
+
+/ {
+	model = "Sipeed Lichee Pi 4A";
+	compatible = "sipeed,lichee-pi-4a", "sipeed,lichee-module-4a", "thead,light";
+
+	aliases {
+		gpio0 = &gpio0;
+		gpio1 = &gpio1;
+		gpio2 = &gpio2;
+		gpio3 = &gpio3;
+		serial0 = &uart0;
+		serial1 = &uart1;
+		serial2 = &uart2;
+		serial3 = &uart3;
+		serial4 = &uart4;
+		serial5 = &uart5;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
-- 
2.40.0

Re: [PATCH 4/5] riscv: dts: thead: add sipeed Lichee Pi 4A board device tree

Posted by Guo Ren 2 years, 9 months ago

On Mon, May 8, 2023 at 2:34 AM Jisheng Zhang <jszhang@kernel.org> wrote:
>
> Sipeed's Lichee Pi 4A development board uses Lichee Module 4A core
> module which is powered by T-HEAD's light(a.k.a TH1520) SoC. Add
No light, just th1520.

> minimal device tree files for the core module and the development
> board.
>
> Support basic uart/gpio/dmac drivers, so supports booting to a basic
> shell.
>
> Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
> ---
>  arch/riscv/boot/dts/Makefile                  |  1 +
>  arch/riscv/boot/dts/thead/Makefile            |  2 +
>  .../dts/thead/light-lichee-module-4a.dtsi     | 38 +++++++++++++++++++
>  .../boot/dts/thead/light-lichee-pi-4a.dts     | 32 ++++++++++++++++
>  4 files changed, 73 insertions(+)
>  create mode 100644 arch/riscv/boot/dts/thead/Makefile
>  create mode 100644 arch/riscv/boot/dts/thead/light-lichee-module-4a.dtsi
>  create mode 100644 arch/riscv/boot/dts/thead/light-lichee-pi-4a.dts
>
> diff --git a/arch/riscv/boot/dts/Makefile b/arch/riscv/boot/dts/Makefile
> index f0d9f89054f8..1e884868ccba 100644
> --- a/arch/riscv/boot/dts/Makefile
> +++ b/arch/riscv/boot/dts/Makefile
> @@ -2,6 +2,7 @@
>  subdir-y += allwinner
>  subdir-y += sifive
>  subdir-y += starfive
> +subdir-y += thead
>  subdir-y += canaan
>  subdir-y += microchip
>  subdir-y += renesas
> diff --git a/arch/riscv/boot/dts/thead/Makefile b/arch/riscv/boot/dts/thead/Makefile
> new file mode 100644
> index 000000000000..9e00acc714cc
> --- /dev/null
> +++ b/arch/riscv/boot/dts/thead/Makefile
> @@ -0,0 +1,2 @@
> +# SPDX-License-Identifier: GPL-2.0
> +dtb-$(CONFIG_ARCH_THEAD) += light-lichee-pi-4a.dtb
> diff --git a/arch/riscv/boot/dts/thead/light-lichee-module-4a.dtsi b/arch/riscv/boot/dts/thead/light-lichee-module-4a.dtsi
> new file mode 100644
> index 000000000000..24c9971e0fb5
> --- /dev/null
> +++ b/arch/riscv/boot/dts/thead/light-lichee-module-4a.dtsi
> @@ -0,0 +1,38 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (C) 2023 Jisheng Zhang <jszhang@kernel.org>
> + */
> +
> +/dts-v1/;
> +
> +#include "light.dtsi"
> +
> +/ {
> +       model = "Sipeed Lichee Module 4A";
> +       compatible = "sipeed,lichee-module-4a", "thead,light";
no light, th1520
> +
> +       memory@0 {
> +               device_type = "memory";
> +               reg = <0x0 0x00000000 0x2 0x00000000>;
> +       };
> +};
> +
> +&osc {
> +       clock-frequency = <24000000>;
> +};
> +
> +&osc_32k {
> +       clock-frequency = <32768>;
> +};
> +
> +&apb_clk {
> +       clock-frequency = <62500000>;
> +};
> +
> +&uart_sclk {
> +       clock-frequency = <100000000>;
> +};
> +
> +&dmac0 {
> +       status = "okay";
> +};
> diff --git a/arch/riscv/boot/dts/thead/light-lichee-pi-4a.dts b/arch/riscv/boot/dts/thead/light-lichee-pi-4a.dts
> new file mode 100644
> index 000000000000..4f0ba2149d2d
> --- /dev/null
> +++ b/arch/riscv/boot/dts/thead/light-lichee-pi-4a.dts
> @@ -0,0 +1,32 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (C) 2023 Jisheng Zhang <jszhang@kernel.org>
> + */
> +
> +#include "light-lichee-module-4a.dtsi"
> +
> +/ {
> +       model = "Sipeed Lichee Pi 4A";
> +       compatible = "sipeed,lichee-pi-4a", "sipeed,lichee-module-4a", "thead,light";
no light, th1520
> +
> +       aliases {
> +               gpio0 = &gpio0;
> +               gpio1 = &gpio1;
> +               gpio2 = &gpio2;
> +               gpio3 = &gpio3;
> +               serial0 = &uart0;
> +               serial1 = &uart1;
> +               serial2 = &uart2;
> +               serial3 = &uart3;
> +               serial4 = &uart4;
> +               serial5 = &uart5;
> +       };
> +
> +       chosen {
> +               stdout-path = "serial0:115200n8";
> +       };
> +};
> +
> +&uart0 {
> +       status = "okay";
> +};
> --
> 2.40.0
>


-- 
Best Regards
 Guo Ren

Re: [PATCH 4/5] riscv: dts: thead: add sipeed Lichee Pi 4A board device tree

Posted by Conor Dooley 2 years, 9 months ago

Hey Jisheng,

On Mon, May 08, 2023 at 02:23:03AM +0800, Jisheng Zhang wrote:
> Sipeed's Lichee Pi 4A development board uses Lichee Module 4A core
> module which is powered by T-HEAD's light(a.k.a TH1520) SoC. Add
> minimal device tree files for the core module and the development
> board.
> 
> Support basic uart/gpio/dmac drivers, so supports booting to a basic
> shell.

There are quite a lot of dtbs_check warnings etc produced by this patch.
RISC-V is *almost* W=1 clean for dtbs_check & I'd like to get that to
clean once the non-coherent DMA situation for Renesas is sorted out.
That said, I think some of the issues I noticed will crop up at the
default warning level too.

Please fix all of the W=1 complaints from dtbs_check, which will require
the creation of some additional dt-bindings.

> 
> Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
> ---
>  arch/riscv/boot/dts/Makefile                  |  1 +
>  arch/riscv/boot/dts/thead/Makefile            |  2 +
>  .../dts/thead/light-lichee-module-4a.dtsi     | 38 +++++++++++++++++++
>  .../boot/dts/thead/light-lichee-pi-4a.dts     | 32 ++++++++++++++++
>  4 files changed, 73 insertions(+)
>  create mode 100644 arch/riscv/boot/dts/thead/Makefile
>  create mode 100644 arch/riscv/boot/dts/thead/light-lichee-module-4a.dtsi

As I mentioned in one of the earlier patches, I don't think using
"light" here is all that great. I would much rather see "th1520" used
instead.

Thanks,
Conor.

>  create mode 100644 arch/riscv/boot/dts/thead/light-lichee-pi-4a.dts
> 
> diff --git a/arch/riscv/boot/dts/Makefile b/arch/riscv/boot/dts/Makefile
> index f0d9f89054f8..1e884868ccba 100644
> --- a/arch/riscv/boot/dts/Makefile
> +++ b/arch/riscv/boot/dts/Makefile
> @@ -2,6 +2,7 @@
>  subdir-y += allwinner
>  subdir-y += sifive
>  subdir-y += starfive
> +subdir-y += thead
>  subdir-y += canaan
>  subdir-y += microchip
>  subdir-y += renesas
> diff --git a/arch/riscv/boot/dts/thead/Makefile b/arch/riscv/boot/dts/thead/Makefile
> new file mode 100644
> index 000000000000..9e00acc714cc
> --- /dev/null
> +++ b/arch/riscv/boot/dts/thead/Makefile
> @@ -0,0 +1,2 @@
> +# SPDX-License-Identifier: GPL-2.0
> +dtb-$(CONFIG_ARCH_THEAD) += light-lichee-pi-4a.dtb
> diff --git a/arch/riscv/boot/dts/thead/light-lichee-module-4a.dtsi b/arch/riscv/boot/dts/thead/light-lichee-module-4a.dtsi
> new file mode 100644
> index 000000000000..24c9971e0fb5
> --- /dev/null
> +++ b/arch/riscv/boot/dts/thead/light-lichee-module-4a.dtsi
> @@ -0,0 +1,38 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (C) 2023 Jisheng Zhang <jszhang@kernel.org>
> + */
> +
> +/dts-v1/;
> +
> +#include "light.dtsi"
> +
> +/ {
> +	model = "Sipeed Lichee Module 4A";
> +	compatible = "sipeed,lichee-module-4a", "thead,light";
> +
> +	memory@0 {
> +		device_type = "memory";
> +		reg = <0x0 0x00000000 0x2 0x00000000>;
> +	};
> +};
> +
> +&osc {
> +	clock-frequency = <24000000>;
> +};
> +
> +&osc_32k {
> +	clock-frequency = <32768>;
> +};
> +
> +&apb_clk {
> +	clock-frequency = <62500000>;
> +};
> +
> +&uart_sclk {
> +	clock-frequency = <100000000>;
> +};
> +
> +&dmac0 {
> +	status = "okay";
> +};
> diff --git a/arch/riscv/boot/dts/thead/light-lichee-pi-4a.dts b/arch/riscv/boot/dts/thead/light-lichee-pi-4a.dts
> new file mode 100644
> index 000000000000..4f0ba2149d2d
> --- /dev/null
> +++ b/arch/riscv/boot/dts/thead/light-lichee-pi-4a.dts
> @@ -0,0 +1,32 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (C) 2023 Jisheng Zhang <jszhang@kernel.org>
> + */
> +
> +#include "light-lichee-module-4a.dtsi"
> +
> +/ {
> +	model = "Sipeed Lichee Pi 4A";
> +	compatible = "sipeed,lichee-pi-4a", "sipeed,lichee-module-4a", "thead,light";
> +
> +	aliases {
> +		gpio0 = &gpio0;
> +		gpio1 = &gpio1;
> +		gpio2 = &gpio2;
> +		gpio3 = &gpio3;
> +		serial0 = &uart0;
> +		serial1 = &uart1;
> +		serial2 = &uart2;
> +		serial3 = &uart3;
> +		serial4 = &uart4;
> +		serial5 = &uart5;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +};
> +
> +&uart0 {
> +	status = "okay";
> +};
> -- 
> 2.40.0
>

[PATCH 1/5] irqchip/sifive-plic: Support T-HEAD's C910 PLIC
[PATCH 2/5] riscv: Add the T-HEAD SoC family Kconfig option
[PATCH 3/5] riscv: dts: add initial T-HEAD light SoC device tree
[PATCH 4/5] riscv: dts: thead: add sipeed Lichee Pi 4A board device tree
[PATCH 5/5] MAINTAINERS: add entry for T-HEAD RISC-V SoC