xref: /openbmc/u-boot/include/fpga.h (revision 080a46ea)
1 /*
2  * (C) Copyright 2002
3  * Rich Ireland, Enterasys Networks, rireland@enterasys.com.
4  *
5  * See file CREDITS for list of people who contributed to this
6  * project.
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License as
10  * published by the Free Software Foundation; either version 2 of
11  * the License, or (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21  * MA 02111-1307 USA
22  *
23  */
24 
25 #include <linux/types.h>	       /* for ulong typedef */
26 
27 #ifndef _FPGA_H_
28 #define _FPGA_H_
29 
30 #ifndef CONFIG_MAX_FPGA_DEVICES
31 #define CONFIG_MAX_FPGA_DEVICES		5
32 #endif
33 
34 /* these probably belong somewhere else */
35 #ifndef FALSE
36 #define FALSE			(0)
37 #endif
38 #ifndef TRUE
39 #define TRUE			(!FALSE)
40 #endif
41 
42 /* CONFIG_FPGA bit assignments */
43 #define CONFIG_SYS_FPGA_MAN(x)		(x)
44 #define CONFIG_SYS_FPGA_DEV(x)		((x) << 8 )
45 #define CONFIG_SYS_FPGA_IF(x)		((x) << 16 )
46 
47 /* FPGA Manufacturer bits in CONFIG_FPGA */
48 #define CONFIG_SYS_FPGA_XILINX		CONFIG_SYS_FPGA_MAN( 0x1 )
49 #define CONFIG_SYS_FPGA_ALTERA		CONFIG_SYS_FPGA_MAN( 0x2 )
50 
51 
52 /* fpga_xxxx function return value definitions */
53 #define FPGA_SUCCESS		0
54 #define FPGA_FAIL		-1
55 
56 /* device numbers must be non-negative */
57 #define FPGA_INVALID_DEVICE	-1
58 
59 /* root data type defintions */
60 typedef enum {			/* typedef fpga_type */
61 	fpga_min_type,		/* range check value */
62 	fpga_xilinx,		/* Xilinx Family) */
63 	fpga_altera,		/* unimplemented */
64 	fpga_lattice,		/* Lattice family */
65 	fpga_undefined		/* invalid range check value */
66 } fpga_type;			/* end, typedef fpga_type */
67 
68 typedef struct {		/* typedef fpga_desc */
69 	fpga_type devtype;	/* switch value to select sub-functions */
70 	void *devdesc;		/* real device descriptor */
71 } fpga_desc;			/* end, typedef fpga_desc */
72 
73 
74 /* root function definitions */
75 extern void fpga_init(void);
76 extern int fpga_add(fpga_type devtype, void *desc);
77 extern int fpga_count(void);
78 extern int fpga_load(int devnum, const void *buf, size_t bsize);
79 extern int fpga_dump(int devnum, const void *buf, size_t bsize);
80 extern int fpga_info(int devnum);
81 
82 #endif	/* _FPGA_H_ */
83