From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- arch/mips/include/asm/txx9/dmac.h | 48 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 arch/mips/include/asm/txx9/dmac.h (limited to 'arch/mips/include/asm/txx9/dmac.h') diff --git a/arch/mips/include/asm/txx9/dmac.h b/arch/mips/include/asm/txx9/dmac.h new file mode 100644 index 000000000..b47ef5fe7 --- /dev/null +++ b/arch/mips/include/asm/txx9/dmac.h @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * TXx9 SoC DMA Controller + */ + +#ifndef __ASM_TXX9_DMAC_H +#define __ASM_TXX9_DMAC_H + +#include + +#define TXX9_DMA_MAX_NR_CHANNELS 4 + +/** + * struct txx9dmac_platform_data - Controller configuration parameters + * @memcpy_chan: Channel used for DMA_MEMCPY + * @have_64bit_regs: DMAC have 64 bit registers + */ +struct txx9dmac_platform_data { + int memcpy_chan; + bool have_64bit_regs; +}; + +/** + * struct txx9dmac_chan_platform_data - Channel configuration parameters + * @dmac_dev: A platform device for DMAC + */ +struct txx9dmac_chan_platform_data { + struct platform_device *dmac_dev; +}; + +/** + * struct txx9dmac_slave - Controller-specific information about a slave + * @tx_reg: physical address of data register used for + * memory-to-peripheral transfers + * @rx_reg: physical address of data register used for + * peripheral-to-memory transfers + * @reg_width: peripheral register width + */ +struct txx9dmac_slave { + u64 tx_reg; + u64 rx_reg; + unsigned int reg_width; +}; + +void txx9_dmac_init(int id, unsigned long baseaddr, int irq, + const struct txx9dmac_platform_data *pdata); + +#endif /* __ASM_TXX9_DMAC_H */ -- cgit v1.2.3