/* * 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. */ #include <linux/kernel.h> #include <linux/init.h> #include <linux/module.h> #include <linux/types.h> #include <linux/device.h> #include <linux/string.h> #include <linux/slab.h> #include <linux/fs.h> #include <linux/platform_device.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/firmware.h> #include <linux/io.h> #include "io.h" static inline void byte0_out(unsigned char data); static inline void byte1_out(unsigned char data); static inline void xl_cclk_b(int32_t i); /* Assert and Deassert CCLK */ void xl_shift_cclk(int count) { int i; for (i = 0; i < count; i++) { xl_cclk_b(1); xl_cclk_b(0); } } int xl_supported_prog_bus_width(enum wbus bus_bytes) { switch (bus_bytes) { case bus_1byte: break; case bus_2byte: break; default: pr_err("unsupported program bus width %d\n", bus_bytes); return 0; } return 1; } /* Serialize byte and clock each bit on target's DIN and CCLK pins */ void xl_shift_bytes_out(enum wbus bus_byte, unsigned char *pdata) { /* * supports 1 and 2 bytes programming mode */ if (likely(bus_byte == bus_2byte)) byte0_out(pdata[0]); byte1_out(pdata[1]); xl_shift_cclk(1); } /* * generic bit swap for xilinx SYSTEMMAP FPGA programming */ 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) { return -1; } int xl_get_done_b(void) { return -1; } static inline void byte0_out(unsigned char data) { } static inline void byte1_out(unsigned char data) { } static inline void xl_cclk_b(int32_t i) { } /* * configurable per device type for different I/O config */ int xl_init_io(void) { return -1; }