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Thu, 26 Mar 2026 16:18:07 +0800 (CST) X-QQ-SSF: 0000000000000000000000000000000 X-QQ-GoodBg: 0 X-BIZMAIL-ID: 4668696482951093507 EX-QQ-RecipientCnt: 21 From: Troy Mitchell Date: Thu, 26 Mar 2026 16:17:18 +0800 Subject: [PATCH v2 3/7] dt-bindings: dmaengine: Add SpacemiT K3 DMA request definitions Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260326-k3-pdma-v2-3-ca94ca7bb595@linux.spacemit.com> References: <20260326-k3-pdma-v2-0-ca94ca7bb595@linux.spacemit.com> In-Reply-To: <20260326-k3-pdma-v2-0-ca94ca7bb595@linux.spacemit.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Yixun Lan , Vinod Koul , Frank Li , Guodong Xu , Michael Turquette , Stephen Boyd Cc: devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, linux-clk@vger.kernel.org, liyeshan , Troy Mitchell X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; 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This defines the DMA request mapping for non-secure peripherals including UART, I2C, SSP/SPI, CAN, and QSPI. Signed-off-by: liyeshan Signed-off-by: Guodong Xu Signed-off-by: Troy Mitchell --- include/dt-bindings/dma/k3-pdma.h | 83 +++++++++++++++++++++++++++++++++++= ++++ 1 file changed, 83 insertions(+) diff --git a/include/dt-bindings/dma/k3-pdma.h b/include/dt-bindings/dma/k3= -pdma.h new file mode 100644 index 000000000000..05541a9a9973 --- /dev/null +++ b/include/dt-bindings/dma/k3-pdma.h @@ -0,0 +1,83 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ +/* + * This header provides DMA request number for non-secure peripherals of + * SpacemiT K3 PDMA. + * + * Copyright (c) 2025 SpacemiT + * Copyright (c) 2025 Guodong Xu + */ + +#ifndef __DT_BINDINGS_DMA_K3_PDMA_H__ +#define __DT_BINDINGS_DMA_K3_PDMA_H__ + +/* UART DMA request numbers */ +#define K3_PDMA_UART0_TX 3 +#define K3_PDMA_UART0_RX 4 +#define K3_PDMA_UART2_TX 5 +#define K3_PDMA_UART2_RX 6 +#define K3_PDMA_UART3_TX 7 +#define K3_PDMA_UART3_RX 8 +#define K3_PDMA_UART4_TX 9 +#define K3_PDMA_UART4_RX 10 +#define K3_PDMA_UART5_TX 25 +#define K3_PDMA_UART5_RX 26 +#define K3_PDMA_UART6_TX 27 +#define K3_PDMA_UART6_RX 28 +#define K3_PDMA_UART7_TX 29 +#define K3_PDMA_UART7_RX 30 +#define K3_PDMA_UART8_TX 31 +#define K3_PDMA_UART8_RX 32 +#define K3_PDMA_UART9_TX 33 +#define K3_PDMA_UART9_RX 34 +#define K3_PDMA_UART10_TX 53 +#define K3_PDMA_UART10_RX 54 + +/* I2C DMA request numbers */ +#define K3_PDMA_I2C0_TX 11 +#define K3_PDMA_I2C0_RX 12 +#define K3_PDMA_I2C1_TX 13 +#define K3_PDMA_I2C1_RX 14 +#define K3_PDMA_I2C2_TX 15 +#define K3_PDMA_I2C2_RX 16 +#define K3_PDMA_I2C4_TX 17 +#define K3_PDMA_I2C4_RX 18 +#define K3_PDMA_I2C5_TX 35 +#define K3_PDMA_I2C5_RX 36 +#define K3_PDMA_I2C6_TX 37 +#define K3_PDMA_I2C6_RX 38 +#define K3_PDMA_I2C8_TX 41 +#define K3_PDMA_I2C8_RX 42 + +/* SSP/SPI DMA request numbers */ +#define K3_PDMA_SSP3_TX 19 +#define K3_PDMA_SSP3_RX 20 +#define K3_PDMA_SSPA0_TX 21 +#define K3_PDMA_SSPA0_RX 22 +#define K3_PDMA_SSPA1_TX 23 +#define K3_PDMA_SSPA1_RX 24 +#define K3_PDMA_SSPA2_TX 56 +#define K3_PDMA_SSPA2_RX 57 +#define K3_PDMA_SSPA3_TX 58 +#define K3_PDMA_SSPA3_RX 59 +#define K3_PDMA_SSPA4_TX 60 +#define K3_PDMA_SSPA4_RX 61 +#define K3_PDMA_SSPA5_TX 62 +#define K3_PDMA_SSPA5_RX 63 + +/* CAN DMA request numbers */ +#define K3_PDMA_CAN0_RX 43 +#define K3_PDMA_CAN1_RX 44 +#define K3_PDMA_CAN2_RX 51 +#define K3_PDMA_CAN3_RX 52 + +/* SSP0/1 DMA request numbers */ +#define K3_PDMA_SSP0_TX 64 +#define K3_PDMA_SSP0_RX 65 +#define K3_PDMA_SSP1_TX 66 +#define K3_PDMA_SSP1_RX 67 + +/* QSPI DMA request numbers */ +#define K3_PDMA_QSPI_RX 84 +#define K3_PDMA_QSPI_TX 85 + +#endif /* __DT_BINDINGS_DMA_K3_PDMA_H__ */ --=20 2.53.0