123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122 |
- /*
- * 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.
- */
- #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;
- }
|