diff options
Diffstat (limited to 'arch/arm/mach-pxa/include/mach/pxa2xx_spi.h')
| -rw-r--r-- | arch/arm/mach-pxa/include/mach/pxa2xx_spi.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/include/mach/pxa2xx_spi.h b/arch/arm/mach-pxa/include/mach/pxa2xx_spi.h new file mode 100644 index 00000000000..2206cb61a9f --- /dev/null +++ b/arch/arm/mach-pxa/include/mach/pxa2xx_spi.h @@ -0,0 +1,46 @@ +/* + * Copyright (C) 2005 Stephen Street / StreetFire Sound Labs + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef PXA2XX_SPI_H_ +#define PXA2XX_SPI_H_ + +#define PXA2XX_CS_ASSERT (0x01) +#define PXA2XX_CS_DEASSERT (0x02) + +/* device.platform_data for SSP controller devices */ +struct pxa2xx_spi_master { + u32 clock_enable; + u16 num_chipselect; + u8 enable_dma; +}; + +/* spi_board_info.controller_data for SPI slave devices, + * copied to spi_device.platform_data ... mostly for dma tuning + */ +struct pxa2xx_spi_chip { + u8 tx_threshold; + u8 rx_threshold; + u8 dma_burst_size; + u32 timeout; + u8 enable_loopback; + void (*cs_control)(u32 command); +}; + +extern void pxa2xx_set_spi_info(unsigned id, struct pxa2xx_spi_master *info); + +#endif /*PXA2XX_SPI_H_*/ |