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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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