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Message-Id: <20260118-cv1800b-i2s-driver-v2-7-d10055f68368@gmail.com>
Date: Sun, 18 Jan 2026 00:18:59 +0400
From: "Anton D. Stavinskii" <stavinsky@...il.com>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Chen Wang <unicorn_wang@...look.com>,
Inochi Amaoto <inochiama@...il.com>, Jaroslav Kysela <perex@...ex.cz>,
Takashi Iwai <tiwai@...e.com>, Paul Walmsley <pjw@...nel.org>,
Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>,
Alexandre Ghiti <alex@...ti.fr>
Cc: linux-sound@...r.kernel.org, devicetree@...r.kernel.org,
sophgo@...ts.linux.dev, linux-kernel@...r.kernel.org,
linux-riscv@...ts.infradead.org,
"Anton D. Stavinskii" <stavinsky@...il.com>
Subject: [PATCH v2 7/7] riscv: dts: sophgo: dts nodes for i2s tdm modules
Introduced I2S nodes and internal dac and adc nodes as well
The new header file provided in order to make DMA channel names
more readable.
Signed-off-by: Anton D. Stavinskii <stavinsky@...il.com>
---
arch/riscv/boot/dts/sophgo/cv180x-dmamux.h | 57 +++++++++++++++++++++++++++
arch/riscv/boot/dts/sophgo/cv180x.dtsi | 63 ++++++++++++++++++++++++++++++
2 files changed, 120 insertions(+)
diff --git a/arch/riscv/boot/dts/sophgo/cv180x-dmamux.h b/arch/riscv/boot/dts/sophgo/cv180x-dmamux.h
new file mode 100644
index 000000000000..6314bf6e9dc8
--- /dev/null
+++ b/arch/riscv/boot/dts/sophgo/cv180x-dmamux.h
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+/*
+ * Copyright (C) 2025 Inochi Amaoto <inochiama@...il.com>
+ */
+
+#ifndef _SOPHGO_CV18XX_DMAMUX
+#define _SOPHGO_CV18XX_DMAMUX
+
+#define DMA_I2S0_RX 0
+#define DMA_I2S0_TX 1
+#define DMA_I2S1_RX 2
+#define DMA_I2S1_TX 3
+#define DMA_I2S2_RX 4
+#define DMA_I2S2_TX 5
+#define DMA_I2S3_RX 6
+#define DMA_I2S3_TX 7
+#define DMA_UART0_RX 8
+#define DMA_UART0_TX 9
+#define DMA_UART1_RX 10
+#define DMA_UART1_TX 11
+#define DMA_UART2_RX 12
+#define DMA_UART2_TX 13
+#define DMA_UART3_RX 14
+#define DMA_UART3_TX 15
+#define DMA_SPI0_RX 16
+#define DMA_SPI0_TX 17
+#define DMA_SPI1_RX 18
+#define DMA_SPI1_TX 19
+#define DMA_SPI2_RX 20
+#define DMA_SPI2_TX 21
+#define DMA_SPI3_RX 22
+#define DMA_SPI3_TX 23
+#define DMA_I2C0_RX 24
+#define DMA_I2C0_TX 25
+#define DMA_I2C1_RX 26
+#define DMA_I2C1_TX 27
+#define DMA_I2C2_RX 28
+#define DMA_I2C2_TX 29
+#define DMA_I2C3_RX 30
+#define DMA_I2C3_TX 31
+#define DMA_I2C4_RX 32
+#define DMA_I2C4_TX 33
+#define DMA_TDM0_RX 34
+#define DMA_TDM0_TX 35
+#define DMA_TDM1_RX 36
+#define DMA_AUDSRC 37
+#define DMA_SPI_NAND 38
+#define DMA_SPI_NOR 39
+#define DMA_UART4_RX 40
+#define DMA_UART4_TX 41
+#define DMA_SPI_NOR1 42
+
+#define DMA_CPU_A53 0
+#define DMA_CPU_C906_0 1
+#define DMA_CPU_C906_1 2
+
+#endif // _SOPHGO_CV18XX_DMAMUX
diff --git a/arch/riscv/boot/dts/sophgo/cv180x.dtsi b/arch/riscv/boot/dts/sophgo/cv180x.dtsi
index 06b0ce5a2db7..5a56951f7e4c 100644
--- a/arch/riscv/boot/dts/sophgo/cv180x.dtsi
+++ b/arch/riscv/boot/dts/sophgo/cv180x.dtsi
@@ -8,6 +8,7 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include "cv18xx-reset.h"
+#include "cv180x-dmamux.h"
/ {
#address-cells = <1>;
@@ -448,6 +449,68 @@ usb: usb@...0000 {
status = "disabled";
};
+ i2s0: i2s@...0000 {
+ compatible = "sophgo,cv1800b-i2s";
+ reg = <0x04100000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk CLK_APB_I2S0>, <&clk CLK_SDMA_AUD0>;
+ clock-names = "i2s", "mclk";
+ dmas = <&dmamux DMA_I2S0_RX 1>, <&dmamux DMA_I2S0_TX 1>;
+ dma-names = "rx", "tx";
+ status = "disabled";
+ };
+
+ i2s1: i2s@...0000 {
+ compatible = "sophgo,cv1800b-i2s";
+ reg = <0x04110000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk CLK_APB_I2S1>, <&clk CLK_SDMA_AUD1>;
+ clock-names = "i2s", "mclk";
+ dmas = <&dmamux DMA_I2S1_RX 1>, <&dmamux DMA_I2S1_TX 1>;
+ dma-names = "rx", "tx";
+ status = "disabled";
+ };
+
+ i2s2: i2s@...0000 {
+ compatible = "sophgo,cv1800b-i2s";
+ reg = <0x04120000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk CLK_APB_I2S2>, <&clk CLK_SDMA_AUD2>;
+ clock-names = "i2s", "mclk";
+ dmas = <&dmamux DMA_I2S2_RX 1>, <&dmamux DMA_I2S2_TX 1>;
+ dma-names = "rx", "tx";
+ status = "disabled";
+ };
+
+ i2s3: i2s@...0000 {
+ compatible = "sophgo,cv1800b-i2s";
+ reg = <0x04130000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk CLK_APB_I2S3>, <&clk CLK_SDMA_AUD3>;
+ clock-names = "i2s", "mclk";
+ dmas = <&dmamux DMA_I2S3_RX 1>, <&dmamux DMA_I2S3_TX 1>;
+ dma-names = "rx", "tx";
+ status = "disabled";
+ };
+
+ int_adc: codec@...a100 {
+ compatible = "sophgo,cv1800b-sound-adc";
+ #sound-dai-cells = <0>;
+ reg = <0x300a100 0x100>;
+ status = "disabled";
+ };
+
+ int_dac: codec@...a000 {
+ compatible = "sophgo,cv1800b-sound-dac";
+ #sound-dai-cells = <0>;
+ reg = <0x300a000 0x100>;
+ status = "disabled";
+ };
+
rtc@...5000 {
compatible = "sophgo,cv1800b-rtc", "syscon";
reg = <0x5025000 0x2000>;
--
2.43.0
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