480 lines
13 KiB
C
480 lines
13 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/***************************************************************************
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* Copyright (C) 2006 by Dominic Rath *
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* Dominic.Rath@gmx.de *
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***************************************************************************/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "virtex2.h"
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#include "xilinx_bit.h"
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#include "pld.h"
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static const struct virtex2_command_set virtex2_default_commands = {
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.cfg_out = 0x04,
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.cfg_in = 0x05,
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.jprog_b = 0x0b,
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.jstart = 0x0c,
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.jshutdown = 0x0d,
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.bypass = 0x3f,
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.user = {0x02, 0x03},
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.num_user = 2, /* virtex II has only 2 user instructions */
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};
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static int virtex2_set_instr(struct jtag_tap *tap, uint64_t new_instr)
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{
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if (!tap)
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return ERROR_FAIL;
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if (buf_get_u64(tap->cur_instr, 0, tap->ir_length) != new_instr) {
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struct scan_field field;
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field.num_bits = tap->ir_length;
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void *t = calloc(DIV_ROUND_UP(field.num_bits, 8), 1);
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if (!t) {
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LOG_ERROR("Out of memory");
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return ERROR_FAIL;
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}
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field.out_value = t;
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buf_set_u64(t, 0, field.num_bits, new_instr);
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field.in_value = NULL;
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jtag_add_ir_scan(tap, &field, TAP_IDLE);
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free(t);
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}
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return ERROR_OK;
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}
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static int virtex2_send_32(struct pld_device *pld_device,
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int num_words, uint32_t *words)
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{
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struct virtex2_pld_device *virtex2_info = pld_device->driver_priv;
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struct scan_field scan_field;
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uint8_t *values;
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int i;
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values = malloc(num_words * 4);
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if (!values) {
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LOG_ERROR("Out of memory");
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return ERROR_FAIL;
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}
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scan_field.num_bits = num_words * 32;
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scan_field.out_value = values;
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scan_field.in_value = NULL;
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for (i = 0; i < num_words; i++)
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buf_set_u32(values + 4 * i, 0, 32, flip_u32(*words++, 32));
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int retval = virtex2_set_instr(virtex2_info->tap, virtex2_info->command_set.cfg_in);
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if (retval != ERROR_OK) {
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free(values);
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return retval;
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}
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jtag_add_dr_scan(virtex2_info->tap, 1, &scan_field, TAP_DRPAUSE);
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free(values);
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return ERROR_OK;
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}
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static inline void virtexflip32(jtag_callback_data_t arg)
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{
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uint8_t *in = (uint8_t *)arg;
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*((uint32_t *)arg) = flip_u32(le_to_h_u32(in), 32);
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}
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static int virtex2_receive_32(struct pld_device *pld_device,
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int num_words, uint32_t *words)
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{
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struct virtex2_pld_device *virtex2_info = pld_device->driver_priv;
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struct scan_field scan_field;
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scan_field.num_bits = 32;
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scan_field.out_value = NULL;
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scan_field.in_value = NULL;
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int retval = virtex2_set_instr(virtex2_info->tap, virtex2_info->command_set.cfg_out);
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if (retval != ERROR_OK)
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return retval;
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while (num_words--) {
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scan_field.in_value = (uint8_t *)words;
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jtag_add_dr_scan(virtex2_info->tap, 1, &scan_field, TAP_DRPAUSE);
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jtag_add_callback(virtexflip32, (jtag_callback_data_t)words);
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words++;
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}
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return ERROR_OK;
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}
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static int virtex2_read_stat(struct pld_device *pld_device, uint32_t *status)
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{
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uint32_t data[5];
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jtag_add_tlr();
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data[0] = 0xaa995566; /* synch word */
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data[1] = 0x2800E001; /* Type 1, read, address 7, 1 word */
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data[2] = 0x20000000; /* NOOP (Type 1, read, address 0, 0 words */
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data[3] = 0x20000000; /* NOOP */
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data[4] = 0x20000000; /* NOOP */
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int retval = virtex2_send_32(pld_device, 5, data);
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if (retval != ERROR_OK)
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return retval;
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retval = virtex2_receive_32(pld_device, 1, status);
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if (retval != ERROR_OK)
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return retval;
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retval = jtag_execute_queue();
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if (retval == ERROR_OK)
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LOG_DEBUG("status: 0x%8.8" PRIx32, *status);
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return retval;
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}
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static int virtex2_program(struct pld_device *pld_device)
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{
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struct virtex2_pld_device *virtex2_info = pld_device->driver_priv;
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if (!virtex2_info)
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return ERROR_FAIL;
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int retval = virtex2_set_instr(virtex2_info->tap, virtex2_info->command_set.jshutdown);
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if (retval != ERROR_OK)
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return retval;
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retval = virtex2_set_instr(virtex2_info->tap, virtex2_info->command_set.jprog_b);
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if (retval != ERROR_OK)
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return retval;
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jtag_add_runtest(62000, TAP_IDLE);
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if (!(virtex2_info->no_jstart)) {
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retval = virtex2_set_instr(virtex2_info->tap, virtex2_info->command_set.jstart);
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if (retval != ERROR_OK)
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return retval;
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}
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retval = virtex2_set_instr(virtex2_info->tap, virtex2_info->command_set.bypass);
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if (retval != ERROR_OK)
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return retval;
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jtag_add_runtest(2000, TAP_IDLE);
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return jtag_execute_queue();
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}
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static int virtex2_load_prepare(struct pld_device *pld_device)
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{
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struct virtex2_pld_device *virtex2_info = pld_device->driver_priv;
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int retval;
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retval = virtex2_set_instr(virtex2_info->tap, virtex2_info->command_set.jprog_b);
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if (retval != ERROR_OK)
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return retval;
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retval = jtag_execute_queue();
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if (retval != ERROR_OK)
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return retval;
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jtag_add_sleep(1000);
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retval = virtex2_set_instr(virtex2_info->tap, virtex2_info->command_set.cfg_in);
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if (retval != ERROR_OK)
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return retval;
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return jtag_execute_queue();
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}
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static int virtex2_load_cleanup(struct pld_device *pld_device)
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{
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struct virtex2_pld_device *virtex2_info = pld_device->driver_priv;
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int retval;
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jtag_add_tlr();
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if (!(virtex2_info->no_jstart)) {
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retval = virtex2_set_instr(virtex2_info->tap, virtex2_info->command_set.jstart);
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if (retval != ERROR_OK)
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return retval;
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}
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jtag_add_runtest(13, TAP_IDLE);
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retval = virtex2_set_instr(virtex2_info->tap, virtex2_info->command_set.bypass);
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if (retval != ERROR_OK)
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return retval;
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retval = virtex2_set_instr(virtex2_info->tap, virtex2_info->command_set.bypass);
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if (retval != ERROR_OK)
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return retval;
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if (!(virtex2_info->no_jstart)) {
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retval = virtex2_set_instr(virtex2_info->tap, virtex2_info->command_set.jstart);
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if (retval != ERROR_OK)
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return retval;
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}
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jtag_add_runtest(13, TAP_IDLE);
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retval = virtex2_set_instr(virtex2_info->tap, virtex2_info->command_set.bypass);
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if (retval != ERROR_OK)
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return retval;
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return jtag_execute_queue();
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}
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static int virtex2_load(struct pld_device *pld_device, const char *filename)
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{
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struct virtex2_pld_device *virtex2_info = pld_device->driver_priv;
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struct xilinx_bit_file bit_file;
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int retval;
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unsigned int i;
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struct scan_field field;
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field.in_value = NULL;
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retval = xilinx_read_bit_file(&bit_file, filename);
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if (retval != ERROR_OK)
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return retval;
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retval = virtex2_load_prepare(pld_device);
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if (retval != ERROR_OK) {
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xilinx_free_bit_file(&bit_file);
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return retval;
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}
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for (i = 0; i < bit_file.length; i++)
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bit_file.data[i] = flip_u32(bit_file.data[i], 8);
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field.num_bits = bit_file.length * 8;
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field.out_value = bit_file.data;
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jtag_add_dr_scan(virtex2_info->tap, 1, &field, TAP_DRPAUSE);
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retval = jtag_execute_queue();
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if (retval != ERROR_OK) {
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xilinx_free_bit_file(&bit_file);
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return retval;
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}
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retval = virtex2_load_cleanup(pld_device);
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xilinx_free_bit_file(&bit_file);
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return retval;
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}
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COMMAND_HANDLER(virtex2_handle_refresh_command)
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{
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struct pld_device *device;
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if (CMD_ARGC != 1)
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return ERROR_COMMAND_SYNTAX_ERROR;
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device = get_pld_device_by_name_or_numstr(CMD_ARGV[0]);
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if (!device) {
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command_print(CMD, "pld device '#%s' is out of bounds or unknown", CMD_ARGV[0]);
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return ERROR_FAIL;
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}
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return virtex2_program(device);
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}
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COMMAND_HANDLER(virtex2_handle_read_stat_command)
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{
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struct pld_device *device;
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uint32_t status;
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if (CMD_ARGC < 1)
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return ERROR_COMMAND_SYNTAX_ERROR;
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device = get_pld_device_by_name_or_numstr(CMD_ARGV[0]);
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if (!device) {
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command_print(CMD, "pld device '#%s' is out of bounds or unknown", CMD_ARGV[0]);
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return ERROR_FAIL;
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}
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int retval = virtex2_read_stat(device, &status);
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if (retval != ERROR_OK) {
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command_print(CMD, "cannot read virtex2 status register");
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return retval;
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}
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command_print(CMD, "virtex2 status register: 0x%8.8" PRIx32, status);
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return ERROR_OK;
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}
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static int xilinx_get_ipdbg_hub(int user_num, struct pld_device *pld_device, struct pld_ipdbg_hub *hub)
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{
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if (!pld_device)
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return ERROR_FAIL;
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struct virtex2_pld_device *pld_device_info = pld_device->driver_priv;
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if (!pld_device_info || !pld_device_info->tap)
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return ERROR_FAIL;
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hub->tap = pld_device_info->tap;
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if (user_num < 1 || (unsigned int)user_num > pld_device_info->command_set.num_user) {
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LOG_ERROR("device has only user register 1 to %d", pld_device_info->command_set.num_user);
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return ERROR_FAIL;
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}
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hub->user_ir_code = pld_device_info->command_set.user[user_num - 1];
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return ERROR_OK;
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}
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static int xilinx_get_jtagspi_userircode(struct pld_device *pld_device, unsigned int *ir)
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{
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if (!pld_device || !pld_device->driver_priv)
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return ERROR_FAIL;
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struct virtex2_pld_device *pld_device_info = pld_device->driver_priv;
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if (pld_device_info->command_set.num_user < 1) {
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LOG_ERROR("code for command 'select user1' is unknown");
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return ERROR_FAIL;
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}
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*ir = pld_device_info->command_set.user[0];
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return ERROR_OK;
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}
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COMMAND_HANDLER(virtex2_handle_set_instuction_codes_command)
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{
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if (CMD_ARGC < 6 || CMD_ARGC > (6 + VIRTEX2_MAX_USER_INSTRUCTIONS))
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return ERROR_COMMAND_SYNTAX_ERROR;
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struct pld_device *device = get_pld_device_by_name(CMD_ARGV[0]);
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if (!device) {
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command_print(CMD, "pld device '#%s' is unknown", CMD_ARGV[0]);
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return ERROR_FAIL;
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}
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struct virtex2_pld_device *virtex2_info = device->driver_priv;
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if (!virtex2_info)
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return ERROR_FAIL;
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struct virtex2_command_set instr_codes;
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COMMAND_PARSE_NUMBER(u64, CMD_ARGV[1], instr_codes.cfg_out);
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COMMAND_PARSE_NUMBER(u64, CMD_ARGV[2], instr_codes.cfg_in);
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COMMAND_PARSE_NUMBER(u64, CMD_ARGV[3], instr_codes.jprog_b);
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COMMAND_PARSE_NUMBER(u64, CMD_ARGV[4], instr_codes.jstart);
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COMMAND_PARSE_NUMBER(u64, CMD_ARGV[5], instr_codes.jshutdown);
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instr_codes.bypass = 0xffffffffffffffffULL;
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unsigned int num_user = CMD_ARGC - 6;
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for (unsigned int i = 0; i < num_user; ++i)
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COMMAND_PARSE_NUMBER(u64, CMD_ARGV[6 + i], instr_codes.user[i]);
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instr_codes.num_user = num_user;
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virtex2_info->command_set = instr_codes;
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return ERROR_OK;
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}
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COMMAND_HANDLER(virtex2_handle_set_user_codes_command)
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{
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if (CMD_ARGC < 2 || CMD_ARGC > (1 + VIRTEX2_MAX_USER_INSTRUCTIONS))
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return ERROR_COMMAND_SYNTAX_ERROR;
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struct pld_device *device = get_pld_device_by_name(CMD_ARGV[0]);
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if (!device) {
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command_print(CMD, "pld device '#%s' is unknown", CMD_ARGV[0]);
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return ERROR_FAIL;
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}
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struct virtex2_pld_device *virtex2_info = device->driver_priv;
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if (!virtex2_info)
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return ERROR_FAIL;
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uint64_t user[VIRTEX2_MAX_USER_INSTRUCTIONS];
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unsigned int num_user = CMD_ARGC - 1;
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for (unsigned int i = 0; i < num_user; ++i)
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COMMAND_PARSE_NUMBER(u64, CMD_ARGV[1 + i], user[i]);
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virtex2_info->command_set.num_user = num_user;
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memcpy(virtex2_info->command_set.user, user, num_user * sizeof(uint64_t));
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return ERROR_OK;
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}
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PLD_CREATE_COMMAND_HANDLER(virtex2_pld_create_command)
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{
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if (CMD_ARGC < 4)
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return ERROR_COMMAND_SYNTAX_ERROR;
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if (strcmp(CMD_ARGV[2], "-chain-position") != 0)
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return ERROR_COMMAND_SYNTAX_ERROR;
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struct jtag_tap *tap = jtag_tap_by_string(CMD_ARGV[3]);
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if (!tap) {
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command_print(CMD, "Tap: %s does not exist", CMD_ARGV[3]);
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return ERROR_FAIL;
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}
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struct virtex2_pld_device *virtex2_info = malloc(sizeof(struct virtex2_pld_device));
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if (!virtex2_info) {
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LOG_ERROR("Out of memory");
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return ERROR_FAIL;
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}
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virtex2_info->tap = tap;
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virtex2_info->command_set = virtex2_default_commands;
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virtex2_info->no_jstart = 0;
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if (CMD_ARGC >= 5 && strcmp(CMD_ARGV[4], "-no_jstart") == 0)
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virtex2_info->no_jstart = 1;
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pld->driver_priv = virtex2_info;
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return ERROR_OK;
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}
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static const struct command_registration virtex2_exec_command_handlers[] = {
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{
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.name = "read_stat",
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.mode = COMMAND_EXEC,
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.handler = virtex2_handle_read_stat_command,
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.help = "read status register",
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.usage = "pld_name",
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}, {
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.name = "set_instr_codes",
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.mode = COMMAND_ANY,
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.handler = virtex2_handle_set_instuction_codes_command,
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.help = "set instructions codes used for loading the bitstream/refreshing/jtag-hub",
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.usage = "pld_name cfg_out cfg_in jprogb jstart jshutdown"
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" [user1 [user2 [user3 [user4]]]]",
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}, {
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.name = "set_user_codes",
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.mode = COMMAND_ANY,
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.handler = virtex2_handle_set_user_codes_command,
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.help = "set instructions codes used for jtag-hub",
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.usage = "pld_name user1 [user2 [user3 [user4]]]",
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}, {
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.name = "refresh",
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.mode = COMMAND_EXEC,
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.handler = virtex2_handle_refresh_command,
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.help = "start loading of configuration (program)",
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.usage = "pld_name",
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},
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COMMAND_REGISTRATION_DONE
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};
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static const struct command_registration virtex2_command_handler[] = {
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{
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.name = "virtex2",
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.mode = COMMAND_ANY,
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.help = "Virtex-II specific commands",
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.usage = "",
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.chain = virtex2_exec_command_handlers,
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},
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COMMAND_REGISTRATION_DONE
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};
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struct pld_driver virtex2_pld = {
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.name = "virtex2",
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.commands = virtex2_command_handler,
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.pld_create_command = &virtex2_pld_create_command,
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.load = &virtex2_load,
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.get_ipdbg_hub = xilinx_get_ipdbg_hub,
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.get_jtagspi_userircode = xilinx_get_jtagspi_userircode,
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};
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