This commit adds the devicetree node to support the DMA
controller found in JZ480 SoCs.
Signed-off-by: Ezequiel Garcia <ezequiel@xxxxxxxxxxxxxxxxxxxx>
---
arch/mips/boot/dts/ingenic/jz4780.dtsi | 14 ++++++++++
include/dt-bindings/dma/jz4780-dma.h | 49 ++++++++++++++++++++++++++++++++++
2 files changed, 63 insertions(+)
create mode 100644 include/dt-bindings/dma/jz4780-dma.h
diff --git a/arch/mips/boot/dts/ingenic/jz4780.dtsi b/arch/mips/boot/dts/ingenic/jz4780.dtsi
index 9b5794667aee..fd2ef820fbe3 100644
--- a/arch/mips/boot/dts/ingenic/jz4780.dtsi
+++ b/arch/mips/boot/dts/ingenic/jz4780.dtsi
@@ -1,5 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
#include <dt-bindings/clock/jz4780-cgu.h>
+#include <dt-bindings/dma/jz4780-dma.h>
/ {
#address-cells = <1>;
@@ -241,6 +242,19 @@
status = "disabled";
};
+ dma: dma@13420000 {
+ compatible = "ingenic,jz4780-dma";
+ reg = <0x13420000 0x10000>;
+ #dma-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <10>;
+
+ clocks = <&cgu JZ4780_CLK_PDMA>;
+
+ status = "disabled";
+ };
+
bch: bch@134d0000 {
compatible = "ingenic,jz4780-bch";
reg = <0x134d0000 0x10000>;
diff --git a/include/dt-bindings/dma/jz4780-dma.h b/include/dt-bindings/dma/jz4780-dma.h
new file mode 100644
index 000000000000..df017fdfb44e
--- /dev/null
+++ b/include/dt-bindings/dma/jz4780-dma.h
@@ -0,0 +1,49 @@
+#ifndef __DT_BINDINGS_DMA_JZ4780_DMA_H__
+#define __DT_BINDINGS_DMA_JZ4780_DMA_H__
+
+/*
+ * Request type numbers for the JZ4780 DMA controller (written to the DRTn
+ * register for the channel).
+ */
+#define JZ4780_DMA_I2S1_TX 0x4
+#define JZ4780_DMA_I2S1_RX 0x5
+#define JZ4780_DMA_I2S0_TX 0x6
+#define JZ4780_DMA_I2S0_RX 0x7
+#define JZ4780_DMA_AUTO 0x8
+#define JZ4780_DMA_SADC_RX 0x9
+#define JZ4780_DMA_UART4_TX 0xc
+#define JZ4780_DMA_UART4_RX 0xd
+#define JZ4780_DMA_UART3_TX 0xe
+#define JZ4780_DMA_UART3_RX 0xf
+#define JZ4780_DMA_UART2_TX 0x10
+#define JZ4780_DMA_UART2_RX 0x11
+#define JZ4780_DMA_UART1_TX 0x12
+#define JZ4780_DMA_UART1_RX 0x13
+#define JZ4780_DMA_UART0_TX 0x14
+#define JZ4780_DMA_UART0_RX 0x15
+#define JZ4780_DMA_SSI0_TX 0x16
+#define JZ4780_DMA_SSI0_RX 0x17
+#define JZ4780_DMA_SSI1_TX 0x18
+#define JZ4780_DMA_SSI1_RX 0x19
+#define JZ4780_DMA_MSC0_TX 0x1a
+#define JZ4780_DMA_MSC0_RX 0x1b
+#define JZ4780_DMA_MSC1_TX 0x1c
+#define JZ4780_DMA_MSC1_RX 0x1d
+#define JZ4780_DMA_MSC2_TX 0x1e
+#define JZ4780_DMA_MSC2_RX 0x1f
+#define JZ4780_DMA_PCM0_TX 0x20
+#define JZ4780_DMA_PCM0_RX 0x21
+#define JZ4780_DMA_SMB0_TX 0x24
+#define JZ4780_DMA_SMB0_RX 0x25
+#define JZ4780_DMA_SMB1_TX 0x26
+#define JZ4780_DMA_SMB1_RX 0x27
+#define JZ4780_DMA_SMB2_TX 0x28
+#define JZ4780_DMA_SMB2_RX 0x29
+#define JZ4780_DMA_SMB3_TX 0x2a
+#define JZ4780_DMA_SMB3_RX 0x2b
+#define JZ4780_DMA_SMB4_TX 0x2c
+#define JZ4780_DMA_SMB4_RX 0x2d
+#define JZ4780_DMA_DES_TX 0x2e
+#define JZ4780_DMA_DES_RX 0x2f
+
+#endif /* __DT_BINDINGS_DMA_JZ4780_DMA_H__ */
--
2.16.2
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