diff options
Diffstat (limited to 'arch/arm/mach-s3c/dma-s3c24xx.h')
| -rw-r--r-- | arch/arm/mach-s3c/dma-s3c24xx.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c/dma-s3c24xx.h b/arch/arm/mach-s3c/dma-s3c24xx.h new file mode 100644 index 000000000..25fc9c258 --- /dev/null +++ b/arch/arm/mach-s3c/dma-s3c24xx.h @@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2003-2006 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * Samsung S3C24XX DMA support + */ + +#ifndef __ASM_ARCH_DMA_H +#define __ASM_ARCH_DMA_H __FILE__ + +#include <linux/device.h> + +/* We use `virtual` dma channels to hide the fact we have only a limited + * number of DMA channels, and not of all of them (dependent on the device) + * can be attached to any DMA source. We therefore let the DMA core handle + * the allocation of hardware channels to clients. +*/ + +enum dma_ch { + DMACH_XD0 = 0, + DMACH_XD1, + DMACH_SDI, + DMACH_SPI0, + DMACH_SPI1, + DMACH_UART0, + DMACH_UART1, + DMACH_UART2, + DMACH_TIMER, + DMACH_I2S_IN, + DMACH_I2S_OUT, + DMACH_PCM_IN, + DMACH_PCM_OUT, + DMACH_MIC_IN, + DMACH_USB_EP1, + DMACH_USB_EP2, + DMACH_USB_EP3, + DMACH_USB_EP4, + DMACH_UART0_SRC2, /* s3c2412 second uart sources */ + DMACH_UART1_SRC2, + DMACH_UART2_SRC2, + DMACH_UART3, /* s3c2443 has extra uart */ + DMACH_UART3_SRC2, + DMACH_SPI0_TX, /* s3c2443/2416/2450 hsspi0 */ + DMACH_SPI0_RX, /* s3c2443/2416/2450 hsspi0 */ + DMACH_SPI1_TX, /* s3c2443/2450 hsspi1 */ + DMACH_SPI1_RX, /* s3c2443/2450 hsspi1 */ + DMACH_MAX, /* the end entry */ +}; + +#endif /* __ASM_ARCH_DMA_H */ |