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e0c9905e SS |
1 | /* |
2 | * Copyright (C) 2005 Stephen Street / StreetFire Sound Labs | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
17 | */ | |
18 | ||
19 | #ifndef PXA2XX_SPI_H_ | |
20 | #define PXA2XX_SPI_H_ | |
21 | ||
22 | #define PXA2XX_CS_ASSERT (0x01) | |
23 | #define PXA2XX_CS_DEASSERT (0x02) | |
24 | ||
e0c9905e SS |
25 | /* device.platform_data for SSP controller devices */ |
26 | struct pxa2xx_spi_master { | |
e0c9905e SS |
27 | u32 clock_enable; |
28 | u16 num_chipselect; | |
29 | u8 enable_dma; | |
30 | }; | |
31 | ||
32 | /* spi_board_info.controller_data for SPI slave devices, | |
33 | * copied to spi_device.platform_data ... mostly for dma tuning | |
34 | */ | |
35 | struct pxa2xx_spi_chip { | |
36 | u8 tx_threshold; | |
37 | u8 rx_threshold; | |
38 | u8 dma_burst_size; | |
8d94cc50 | 39 | u32 timeout; |
e0c9905e | 40 | u8 enable_loopback; |
a7bb3909 | 41 | int gpio_cs; |
e0c9905e SS |
42 | void (*cs_control)(u32 command); |
43 | }; | |
44 | ||
e172274c GL |
45 | extern void pxa2xx_set_spi_info(unsigned id, struct pxa2xx_spi_master *info); |
46 | ||
e0c9905e | 47 | #endif /*PXA2XX_SPI_H_*/ |