drivers/fpga/virtex2.c

1 // SPDX-License-Identifier: GPL-2.0+
30  * file and add board-specific support for checking BUSY status. By default,
60  * The default timeout in mS for INIT_B to deassert after PROG_B has
64  * which yields 11.44 mS.  So let's make it bigger in order to handle
68 #define CONFIG_SYS_FPGA_WAIT_INIT	CONFIG_SYS_HZ/2	/* 500 ms */
72  * The default timeout for waiting for BUSY to deassert during configuration.
77 #define CONFIG_SYS_FPGA_WAIT_BUSY	CONFIG_SYS_HZ/200	/* 5 ms*/
80 /* Default timeout for waiting for FPGA to enter operational mode after
84 #define CONFIG_SYS_FPGA_WAIT_CONFIG	CONFIG_SYS_HZ/5	/* 200 ms */
98 	switch (desc->iface) {  in virtex2_load()
111 				__FUNCTION__, desc->iface);  in virtex2_load()
120 	switch (desc->iface) {  in virtex2_dump()
133 				__FUNCTION__, desc->iface);  in virtex2_dump()
144  * Virtex-II Slave SelectMap configuration loader. Configuration via
160 	xilinx_virtex2_slave_selectmap_fns *fn = desc->iface_fns;  in virtex2_ssm_load()
168 		int cookie = desc->cookie;  in virtex2_ssm_load()
180 				&fn, fn, fn->pre, fn->pgm, fn->init, fn->err);  in virtex2_ssm_load()
189 				fn->clk, fn->cs, fn->wr, fn->rdata, fn->wdata,  in virtex2_ssm_load()
190 				fn->busy, fn->abort, fn->post);  in virtex2_ssm_load()
198 		if (*fn->pre) {  in virtex2_ssm_load()
199 			(*fn->pre) (cookie);  in virtex2_ssm_load()
208 		(*fn->pgm) (true, true, cookie);  in virtex2_ssm_load()
213 				printf ("%s:%d: ** Timeout after %d ticks waiting for INIT"  in virtex2_ssm_load()
216 				(*fn->abort) (cookie);  in virtex2_ssm_load()
219 		} while (!(*fn->init) (cookie));  in virtex2_ssm_load()
221 		(*fn->pgm) (false, true, cookie);  in virtex2_ssm_load()
223 		(*fn->clk) (true, true, cookie);  in virtex2_ssm_load()
232 				printf ("%s:%d: ** Timeout after %d ticks waiting for INIT"  in virtex2_ssm_load()
235 				(*fn->abort) (cookie);  in virtex2_ssm_load()
238 		} while ((*fn->init) (cookie) && (*fn->busy) (cookie));  in virtex2_ssm_load()
240 		(*fn->wr) (true, true, cookie);  in virtex2_ssm_load()
241 		(*fn->cs) (true, true, cookie);  in virtex2_ssm_load()
251 				(*fn->abort) (cookie);  in virtex2_ssm_load()
256 			if ((*fn->done) (cookie) == FPGA_SUCCESS) {  in virtex2_ssm_load()
257 			    PRINTF ("%s:%d:done went active early, bytecount = %d\n",  in virtex2_ssm_load()
263 			if ((*fn->init) (cookie)) {  in virtex2_ssm_load()
268 				(*fn->abort) (cookie);  in virtex2_ssm_load()
273 			(*fn->wdata) (data[bytecount++], true, cookie);  in virtex2_ssm_load()
279 			(*fn->clk) (false, true, cookie);  in virtex2_ssm_load()
281 			(*fn->clk) (true, true, cookie);  in virtex2_ssm_load()
285 			while ((*fn->busy) (cookie)) {  in virtex2_ssm_load()
287 					printf ("%s:%d: ** Timeout after %d ticks waiting for"  in virtex2_ssm_load()
290 					(*fn->abort) (cookie);  in virtex2_ssm_load()
306 		(*fn->cs) (false, true, cookie);  in virtex2_ssm_load()
307 		(*fn->wr) (false, true, cookie);  in virtex2_ssm_load()
319 		while (((*fn->done) (cookie) == FPGA_FAIL) || (*fn->init) (cookie)) {  in virtex2_ssm_load()
321 				printf ("%s:%d: ** Timeout after %d ticks waiting for DONE to"  in virtex2_ssm_load()
324 				(*fn->abort) (cookie);  in virtex2_ssm_load()
337 			if (*fn->post) {  in virtex2_ssm_load()
338 				(*fn->post) (cookie);  in virtex2_ssm_load()
359 	xilinx_virtex2_slave_selectmap_fns *fn = desc->iface_fns;  in virtex2_ssm_dump()
364 		int cookie = desc->cookie;  in virtex2_ssm_dump()
368 		(*fn->cs) (true, true, cookie);  in virtex2_ssm_dump()
369 		(*fn->clk) (true, true, cookie);  in virtex2_ssm_dump()
374 				(*fn->abort) (cookie);  in virtex2_ssm_dump()
381 			(*fn->clk) (false, true, cookie);  in virtex2_ssm_dump()
382 			(*fn->clk) (true, true, cookie);  in virtex2_ssm_dump()
383 			(*fn->rdata) (&(data[bytecount++]), cookie);  in virtex2_ssm_dump()
393 		(*fn->cs) (false, false, cookie);  in virtex2_ssm_dump()
394 		(*fn->clk) (false, true, cookie);  in virtex2_ssm_dump()
395 		(*fn->clk) (true, true, cookie);  in virtex2_ssm_dump()