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author | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
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committer | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
commit | 97327692361306d1e6259021bc425e32832fdb50 (patch) | |
tree | fe9088f3248ec61e24f404f21b9793cb644b7f01 /arch/mips/include/asm/txx9/dmac.h | |
parent | 2d05a8f663478a44e088d122e0d62109bbc801d0 (diff) | |
parent | a3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff) | |
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dirty fix to merging
Diffstat (limited to 'arch/mips/include/asm/txx9/dmac.h')
-rw-r--r-- | arch/mips/include/asm/txx9/dmac.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/mips/include/asm/txx9/dmac.h b/arch/mips/include/asm/txx9/dmac.h new file mode 100644 index 00000000..5e9151fc --- /dev/null +++ b/arch/mips/include/asm/txx9/dmac.h @@ -0,0 +1,51 @@ +/* + * TXx9 SoC DMA Controller + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASM_TXX9_DMAC_H +#define __ASM_TXX9_DMAC_H + +#include <linux/dmaengine.h> + +#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 */ |