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riscv: dts: spacemit: add K3 PDMA request numbers

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Add a local DTS header that gives symbolic names to the SpacemiT K3
PDMA request lines of the non-secure peripherals. Device trees can use
these K3_PDMA_* macros instead of hard-coded request numbers when wiring
a peripheral "dmas" property.

Signed-off-by: liyeshan <yeshan.li@spacemit.com>
Signed-off-by: Guodong Xu <docular.xu@gmail.com>
Signed-off-by: Zhengyu He <hezhy472013@gmail.com>
Reviewed-by: Yixun Lan <dlan@kernel.org>
Link: https://patch.msgid.link/20260717-k3-com260-spi-v7-2-rc2-b4-preview-20260716-v1-1-969a1b0f783f@gmail.com
Signed-off-by: Yixun Lan <dlan@kernel.org>
This commit is contained in:
liyeshan 2026-07-17 07:45:25 -07:00 committed by Yixun Lan
parent 9db839d52c
commit e57a4beb33
1 changed files with 83 additions and 0 deletions
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83
arch/riscv/boot/dts/spacemit/k3-pdma.h Normal file
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/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
/*
* DMA request number (DRQ) definitions for non-secure peripherals of
* the SpacemiT K3 PDMA.
*
* Copyright (c) 2025 SpacemiT
* Copyright (c) 2026 Guodong Xu <docular.xu@gmail.com>
*/
#ifndef _DTS_SPACEMIT_K3_PDMA_H
#define _DTS_SPACEMIT_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 /* _DTS_SPACEMIT_K3_PDMA_H */