diff options
Diffstat (limited to 'arch/m68k/include/asm/mcfqspi.h')
-rw-r--r-- | arch/m68k/include/asm/mcfqspi.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/mcfqspi.h b/arch/m68k/include/asm/mcfqspi.h new file mode 100644 index 000000000000..39d90d51111d --- /dev/null +++ b/arch/m68k/include/asm/mcfqspi.h | |||
@@ -0,0 +1,64 @@ | |||
1 | /* | ||
2 | * Definitions for Freescale Coldfire QSPI module | ||
3 | * | ||
4 | * Copyright 2010 Steven King <sfking@fdwdc.com> | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License version 2 | ||
8 | * as published by the Free Software Foundation. | ||
9 | * | ||
10 | * This program is distributed in the hope that it will be useful, | ||
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
13 | * GNU General Public License for more details. | ||
14 | * | ||
15 | * You should have received a copy of the GNU General Public License along | ||
16 | * with this program; if not, write to the Free Software Foundation, Inc., | ||
17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | ||
18 | * | ||
19 | */ | ||
20 | |||
21 | #ifndef mcfqspi_h | ||
22 | #define mcfqspi_h | ||
23 | |||
24 | #if defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x) | ||
25 | #define MCFQSPI_IOBASE (MCF_IPSBAR + 0x340) | ||
26 | #elif defined(CONFIG_M5249) | ||
27 | #define MCFQSPI_IOBASE (MCF_MBAR + 0x300) | ||
28 | #elif defined(CONFIG_M520x) || defined(CONFIG_M532x) | ||
29 | #define MCFQSPI_IOBASE 0xFC058000 | ||
30 | #endif | ||
31 | #define MCFQSPI_IOSIZE 0x40 | ||
32 | |||
33 | /** | ||
34 | * struct mcfqspi_cs_control - chip select control for the coldfire qspi driver | ||
35 | * @setup: setup the control; allocate gpio's, etc. May be NULL. | ||
36 | * @teardown: finish with the control; free gpio's, etc. May be NULL. | ||
37 | * @select: output the signals to select the device. Can not be NULL. | ||
38 | * @deselect: output the signals to deselect the device. Can not be NULL. | ||
39 | * | ||
40 | * The QSPI module has 4 hardware chip selects. We don't use them. Instead | ||
41 | * platforms are required to supply a mcfqspi_cs_control as a part of the | ||
42 | * platform data for each QSPI master controller. Only the select and | ||
43 | * deselect functions are required. | ||
44 | */ | ||
45 | struct mcfqspi_cs_control { | ||
46 | int (*setup)(struct mcfqspi_cs_control *); | ||
47 | void (*teardown)(struct mcfqspi_cs_control *); | ||
48 | void (*select)(struct mcfqspi_cs_control *, u8, bool); | ||
49 | void (*deselect)(struct mcfqspi_cs_control *, u8, bool); | ||
50 | }; | ||
51 | |||
52 | /** | ||
53 | * struct mcfqspi_platform_data - platform data for the coldfire qspi driver | ||
54 | * @bus_num: board specific identifier for this qspi driver. | ||
55 | * @num_chipselects: number of chip selects supported by this qspi driver. | ||
56 | * @cs_control: platform dependent chip select control. | ||
57 | */ | ||
58 | struct mcfqspi_platform_data { | ||
59 | s16 bus_num; | ||
60 | u16 num_chipselect; | ||
61 | struct mcfqspi_cs_control *cs_control; | ||
62 | }; | ||
63 | |||
64 | #endif /* mcfqspi_h */ | ||