| /* |
| * 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 __linux_pxa2xx_spi_h |
| #define __linux_pxa2xx_spi_h |
| |
| #include <linux/pxa2xx_ssp.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; |
| |
| /* DMA engine specific config */ |
| int rx_chan_id; |
| int tx_chan_id; |
| int rx_slave_id; |
| int tx_slave_id; |
| |
| /* For non-PXA arches */ |
| struct ssp_device ssp; |
| }; |
| |
| /* 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 tx_hi_threshold; |
| u8 rx_threshold; |
| u8 dma_burst_size; |
| u32 timeout; |
| u8 enable_loopback; |
| int gpio_cs; |
| void (*cs_control)(u32 command); |
| }; |
| |
| #if defined(CONFIG_ARCH_PXA) || defined(CONFIG_ARCH_MMP) |
| |
| #include <linux/clk.h> |
| #include <mach/dma.h> |
| |
| extern void pxa2xx_set_spi_info(unsigned id, struct pxa2xx_spi_master *info); |
| |
| #endif |
| #endif |
