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/*
* 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);
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