| /* | |
| * Definitions for Freescale Coldfire QSPI module | |
| * | |
| * Copyright 2010 Steven King <sfking@fdwdc.com> | |
| * | |
| * 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. | |
| * | |
| * 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. | |
| */ | |
| #ifndef mcfqspi_h | |
| #define mcfqspi_h | |
| /** | |
| * struct mcfqspi_cs_control - chip select control for the coldfire qspi driver | |
| * @setup: setup the control; allocate gpio's, etc. May be NULL. | |
| * @teardown: finish with the control; free gpio's, etc. May be NULL. | |
| * @select: output the signals to select the device. Can not be NULL. | |
| * @deselect: output the signals to deselect the device. Can not be NULL. | |
| * | |
| * The QSPI module has 4 hardware chip selects. We don't use them. Instead | |
| * platforms are required to supply a mcfqspi_cs_control as a part of the | |
| * platform data for each QSPI master controller. Only the select and | |
| * deselect functions are required. | |
| */ | |
| struct mcfqspi_cs_control { | |
| int (*setup)(struct mcfqspi_cs_control *); | |
| void (*teardown)(struct mcfqspi_cs_control *); | |
| void (*select)(struct mcfqspi_cs_control *, u8, bool); | |
| void (*deselect)(struct mcfqspi_cs_control *, u8, bool); | |
| }; | |
| /** | |
| * struct mcfqspi_platform_data - platform data for the coldfire qspi driver | |
| * @bus_num: board specific identifier for this qspi driver. | |
| * @num_chipselects: number of chip selects supported by this qspi driver. | |
| * @cs_control: platform dependent chip select control. | |
| */ | |
| struct mcfqspi_platform_data { | |
| s16 bus_num; | |
| u16 num_chipselect; | |
| struct mcfqspi_cs_control *cs_control; | |
| }; | |
| #endif /* mcfqspi_h */ |