[mirror_ubuntu-artful-kernel.git] / drivers / staging / gs_fpgaboot / io.h

/*
 * 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.
 */

#define GPDIR	0
#define GPCFG	4	/* open drain or not */
#define GPDAT	8

/*
 * gpio port and pin definitions
 * NOTE: port number starts from 0
 */
#define	XL_INITN_PORT	1
#define	XL_INITN_PIN	14
#define	XL_RDWRN_PORT	1
#define	XL_RDWRN_PIN	13
#define	XL_CCLK_PORT	1
#define	XL_CCLK_PIN	10
#define	XL_PROGN_PORT	1
#define	XL_PROGN_PIN	25
#define	XL_CSIN_PORT	1
#define	XL_CSIN_PIN	26
#define	XL_DONE_PORT	1
#define	XL_DONE_PIN	27

/*
 * gpio mapping
 *
	XL_config_D0 – gpio1_31
	Xl_config_d1 – gpio1_30
	Xl_config_d2 – gpio1_29
	Xl_config_d3 – gpio1_28
	Xl_config_d4 – gpio1_27
	Xl_config_d5 – gpio1_26
	Xl_config_d6 – gpio1_25
	Xl_config_d7 – gpio1_24
	Xl_config_d8 – gpio1_23
	Xl_config_d9 – gpio1_22
	Xl_config_d10 – gpio1_21
	Xl_config_d11 – gpio1_20
	Xl_config_d12 – gpio1_19
	Xl_config_d13 – gpio1_18
	Xl_config_d14 – gpio1_16
	Xl_config_d15 – gpio1_14
*
*/

/*
 * program bus width in bytes
 */
enum wbus {
	bus_1byte	= 1,
	bus_2byte	= 2,
};

#define MAX_WAIT_DONE	10000

struct gpiobus {
	int	ngpio;
	void __iomem *r[4];
};

int xl_supported_prog_bus_width(enum wbus bus_bytes);

void xl_program_b(int32_t i);
void xl_rdwr_b(int32_t i);
void xl_csi_b(int32_t i);

int xl_get_init_b(void);
int xl_get_done_b(void);

void xl_shift_cclk(int count);
void xl_shift_bytes_out(enum wbus bus_byte, unsigned char *pdata);

int xl_init_io(void);
Commit	Line	Data
e7185c69 IS	1	/*
	2	* This program is free software; you can redistribute it and/or modify
	3	* it under the terms of the GNU General Public License as published by
	4	* the Free Software Foundation; either version 2 of the License, or
	5	* (at your option) any later version.
	6	*
	7	* This program is distributed in the hope that it will be useful,
	8	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	9	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	10	*
	11	* GNU General Public License for more details.
	12	*
	13	* You should have received a copy of the GNU General Public License
	14	* along with this program; if not, write to the Free Software
	15	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	16	*/
	17
	18	#define GPDIR 0
	19	#define GPCFG 4 /* open drain or not */
	20	#define GPDAT 8
	21
	22	/*
	23	* gpio port and pin definitions
	24	* NOTE: port number starts from 0
	25	*/
	26	#define XL_INITN_PORT 1
	27	#define XL_INITN_PIN 14
	28	#define XL_RDWRN_PORT 1
	29	#define XL_RDWRN_PIN 13
	30	#define XL_CCLK_PORT 1
	31	#define XL_CCLK_PIN 10
	32	#define XL_PROGN_PORT 1
	33	#define XL_PROGN_PIN 25
	34	#define XL_CSIN_PORT 1
	35	#define XL_CSIN_PIN 26
	36	#define XL_DONE_PORT 1
	37	#define XL_DONE_PIN 27
	38
	39	/*
	40	* gpio mapping
	41	*
	42	XL_config_D0 – gpio1_31
	43	Xl_config_d1 – gpio1_30
	44	Xl_config_d2 – gpio1_29
	45	Xl_config_d3 – gpio1_28
	46	Xl_config_d4 – gpio1_27
	47	Xl_config_d5 – gpio1_26
	48	Xl_config_d6 – gpio1_25
	49	Xl_config_d7 – gpio1_24
	50	Xl_config_d8 – gpio1_23
	51	Xl_config_d9 – gpio1_22
	52	Xl_config_d10 – gpio1_21
	53	Xl_config_d11 – gpio1_20
	54	Xl_config_d12 – gpio1_19
	55	Xl_config_d13 – gpio1_18
	56	Xl_config_d14 – gpio1_16
	57	Xl_config_d15 – gpio1_14
	58	*
	59	*/
	60
	61	/*
	62	* program bus width in bytes
	63	*/
	64	enum wbus {
65	bus_1byte = 1,
66	bus_2byte = 2,
67	};
68
e7185c69 IS	69	#define MAX_WAIT_DONE 10000
e7185c69 IS	70
e7185c69 IS	71	struct gpiobus {
	72	int ngpio;
	73	void __iomem *r[4];
	74	};
	75
	76	int xl_supported_prog_bus_width(enum wbus bus_bytes);
	77
	78	void xl_program_b(int32_t i);
	79	void xl_rdwr_b(int32_t i);
	80	void xl_csi_b(int32_t i);
	81
	82	int xl_get_init_b(void);
	83	int xl_get_done_b(void);
	84
	85	void xl_shift_cclk(int count);
	86	void xl_shift_bytes_out(enum wbus bus_byte, unsigned char *pdata);
	87
	88	int xl_init_io(void);