/* * 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. */ #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);