pld: add support for cologne chip gatemate fpgas
Change-Id: I0bf5a52ee6a7f0287524619114eba0cfccf6ac81 Signed-off-by: Daniel Anselmi <danselmi@gmx.ch> Reviewed-on: https://review.openocd.org/c/openocd/+/7565 Tested-by: jenkins Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
This commit is contained in:
Daniel Anselmi
Antonio Borneo
parent
4b56c73ef3
commit
682f927f8e
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@ -8566,6 +8566,12 @@ The files @verb{|.fs|} and @verb{|.bin|} generated by Gowin FPGA Designer are su
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@end deffn
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@deffn {FPGA Driver} {gatemate}
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This driver can be used to load the bitstream into GateMate FPGAs form CologneChip.
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The files @verb{|.bit|} and @verb{|.cfg|} both generated by p_r tool from CologneChip are supported.
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@end deffn
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@node General Commands
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@chapter General Commands
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@cindex commands
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@ -6,6 +6,7 @@ noinst_LTLIBRARIES += %D%/libpld.la
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%D%/ecp2_3.c \
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%D%/ecp5.c \
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%D%/efinix.c \
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%D%/gatemate.c \
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%D%/gowin.c \
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%D%/intel.c \
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%D%/lattice.c \
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@ -0,0 +1,241 @@
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// SPDX-License-Identifier: GPL-2.0-or-later
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/***************************************************************************
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* Copyright (C) 2022 by Daniel Anselmi *
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* danselmi@gmx.ch *
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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 <jtag/jtag.h>
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#include <jtag/adapter.h>
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#include "pld.h"
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#include "raw_bit.h"
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#define JTAG_CONFIGURE 0x06
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struct gatemate_pld_device {
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struct jtag_tap *tap;
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};
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struct gatemate_bit_file {
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struct raw_bit_file raw_file;
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size_t capacity;
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};
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static int gatemate_add_byte_to_bitfile(struct gatemate_bit_file *bit_file, uint8_t byte)
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{
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const size_t chunk_size = 8192;
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if (bit_file->raw_file.length + 1 > bit_file->capacity) {
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uint8_t *buffer;
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if (bit_file->raw_file.data)
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buffer = realloc(bit_file->raw_file.data, bit_file->capacity + chunk_size);
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else
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buffer = malloc(chunk_size);
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if (!buffer) {
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LOG_ERROR("Out of memory");
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return ERROR_FAIL;
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}
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bit_file->raw_file.data = buffer;
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bit_file->capacity += chunk_size;
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}
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bit_file->raw_file.data[bit_file->raw_file.length++] = byte;
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return ERROR_OK;
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}
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static int gatemate_read_cfg_line(struct gatemate_bit_file *bit_file, const char *line_buffer, size_t nread)
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{
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for (size_t idx = 0; idx < nread; ++idx) {
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if (line_buffer[idx] == ' ') {
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continue;
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} else if (line_buffer[idx] == 0) {
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break;
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} else if (idx + 1 < nread) {
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if (isxdigit(line_buffer[idx]) && isxdigit(line_buffer[idx + 1])) {
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uint8_t byte;
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unhexify(&byte, line_buffer + idx, 2);
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int retval = gatemate_add_byte_to_bitfile(bit_file, byte);
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if (retval != ERROR_OK)
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return retval;
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} else if (line_buffer[idx] == '/' && line_buffer[idx + 1] == '/') {
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break;
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}
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++idx;
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} else {
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LOG_ERROR("parsing failed");
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return ERROR_FAIL;
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}
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}
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return ERROR_OK;
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}
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static int gatemate_getline(char **buffer, size_t *buf_size, FILE *input_file)
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{
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const size_t chunk_size = 32;
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if (!*buffer)
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*buf_size = 0;
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size_t read = 0;
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do {
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if (read + 1 > *buf_size) {
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char *new_buffer;
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if (*buffer)
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new_buffer = realloc(*buffer, *buf_size + chunk_size);
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else
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new_buffer = malloc(chunk_size);
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if (!new_buffer) {
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LOG_ERROR("Out of memory");
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return -1;
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}
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*buffer = new_buffer;
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*buf_size += chunk_size;
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}
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int c = fgetc(input_file);
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if ((c == EOF && read) || (char)c == '\n') {
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(*buffer)[read++] = 0;
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return read;
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} else if (c == EOF) {
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return -1;
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}
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(*buffer)[read++] = (char)c;
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} while (1);
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return -1;
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}
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static int gatemate_read_cfg_file(struct gatemate_bit_file *bit_file, const char *filename)
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{
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FILE *input_file = fopen(filename, "r");
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if (!input_file) {
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LOG_ERROR("Couldn't open %s: %s", filename, strerror(errno));
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return ERROR_PLD_FILE_LOAD_FAILED;
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}
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int retval = ERROR_OK;
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char *line_buffer = NULL;
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size_t buffer_length = 0;
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int nread;
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while (((nread = gatemate_getline(&line_buffer, &buffer_length, input_file)) != -1) && (retval == ERROR_OK))
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retval = gatemate_read_cfg_line(bit_file, line_buffer, (size_t)nread);
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if (line_buffer)
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free(line_buffer);
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fclose(input_file);
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if (retval != ERROR_OK)
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free(bit_file->raw_file.data);
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return retval;
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}
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static int gatemate_read_file(struct gatemate_bit_file *bit_file, const char *filename)
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{
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memset(bit_file, 0, sizeof(struct gatemate_bit_file));
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if (!filename || !bit_file)
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return ERROR_COMMAND_SYNTAX_ERROR;
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/* check if binary .bit or ascii .cfg */
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const char *file_suffix_pos = strrchr(filename, '.');
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if (!file_suffix_pos) {
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LOG_ERROR("Unable to detect filename suffix");
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return ERROR_PLD_FILE_LOAD_FAILED;
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}
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if (strcasecmp(file_suffix_pos, ".bit") == 0)
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return cpld_read_raw_bit_file(&bit_file->raw_file, filename);
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else if (strcasecmp(file_suffix_pos, ".cfg") == 0)
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return gatemate_read_cfg_file(bit_file, filename);
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LOG_ERROR("Filetype not supported, expecting .bit or .cfg file");
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return ERROR_PLD_FILE_LOAD_FAILED;
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}
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static int gatemate_set_instr(struct jtag_tap *tap, uint8_t new_instr)
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{
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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_u32(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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jtag_add_runtest(3, TAP_IDLE);
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free(t);
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return ERROR_OK;
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}
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static int gatemate_load(struct pld_device *pld_device, const char *filename)
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{
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if (!pld_device)
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return ERROR_FAIL;
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struct gatemate_pld_device *gatemate_info = pld_device->driver_priv;
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if (!gatemate_info || !gatemate_info->tap)
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return ERROR_FAIL;
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struct jtag_tap *tap = gatemate_info->tap;
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struct gatemate_bit_file bit_file;
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int retval = gatemate_read_file(&bit_file, filename);
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if (retval != ERROR_OK)
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return retval;
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retval = gatemate_set_instr(tap, JTAG_CONFIGURE);
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if (retval != ERROR_OK)
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return retval;
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struct scan_field field;
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field.num_bits = bit_file.raw_file.length * 8;
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field.out_value = bit_file.raw_file.data;
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field.in_value = NULL;
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jtag_add_dr_scan(tap, 1, &field, TAP_IDLE);
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retval = jtag_execute_queue();
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free(bit_file.raw_file.data);
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return retval;
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}
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PLD_DEVICE_COMMAND_HANDLER(gatemate_pld_device_command)
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{
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struct jtag_tap *tap;
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struct gatemate_pld_device *gatemate_info;
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if (CMD_ARGC != 2)
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return ERROR_COMMAND_SYNTAX_ERROR;
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tap = jtag_tap_by_string(CMD_ARGV[1]);
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if (!tap) {
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command_print(CMD, "Tap: %s does not exist", CMD_ARGV[1]);
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return ERROR_FAIL;
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}
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gatemate_info = malloc(sizeof(struct gatemate_pld_device));
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if (!gatemate_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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gatemate_info->tap = tap;
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pld->driver_priv = gatemate_info;
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return ERROR_OK;
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}
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struct pld_driver gatemate_pld = {
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.name = "gatemate",
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.pld_device_command = &gatemate_pld_device_command,
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.load = &gatemate_load,
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};
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@ -19,6 +19,7 @@
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/* pld drivers
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*/
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extern struct pld_driver efinix_pld;
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extern struct pld_driver gatemate_pld;
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extern struct pld_driver gowin_pld;
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extern struct pld_driver intel_pld;
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extern struct pld_driver lattice_pld;
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@ -26,6 +27,7 @@ extern struct pld_driver virtex2_pld;
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static struct pld_driver *pld_drivers[] = {
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&efinix_pld,
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&gatemate_pld,
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&gowin_pld,
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&intel_pld,
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&lattice_pld,
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@ -0,0 +1,16 @@
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# SPDX-License-Identifier: GPL-2.0-or-later
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# GateMateTM FPGA Evaluation Board
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# https://www.colognechip.com/programmable-logic/gatemate-evaluation-board/
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#
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adapter driver ftdi
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ftdi vid_pid 0x0403 0x6010
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ftdi channel 0
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ftdi layout_init 0x0014 0x011b
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reset_config none
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transport select jtag
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adapter speed 6000
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source [find fpga/gatemate.cfg]
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@ -0,0 +1,16 @@
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# SPDX-License-Identifier: GPL-2.0-or-later
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# GateMateTM FPGA
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# https://www.colognechip.com/programmable-logic/gatemate/
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# https://colognechip.com/docs/ds1001-gatemate1-datasheet-latest.pdf
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if { [info exists CHIPNAME] } {
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set _CHIPNAME $CHIPNAME
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} else {
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set _CHIPNAME gatemate
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}
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jtag newtap $_CHIPNAME tap -irlen 6 -ignore-version \
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-expected-id 0x20000001
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pld device gatemate $_CHIPNAME.tap
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