+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
- * *
- * 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., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/mman.h>
-static uint8_t output_value = 0x0;
+static uint8_t output_value;
static int dev_mem_fd;
-static void *gpio_controller;
+static uint8_t *gpio_controller;
static volatile uint8_t *gpio_data_register;
static volatile uint8_t *gpio_data_direction_register;
/* low level command set
*/
-static int ep93xx_read(void);
-static void ep93xx_write(int tck, int tms, int tdi);
-static void ep93xx_reset(int trst, int srst);
+static bb_value_t ep93xx_read(void);
+static int ep93xx_write(int tck, int tms, int tdi);
+static int ep93xx_reset(int trst, int srst);
-static int ep93xx_speed(int speed);
-static int ep93xx_register_commands(struct command_context *cmd_ctx);
static int ep93xx_init(void);
static int ep93xx_quit(void);
struct timespec ep93xx_zzzz;
-struct jtag_interface ep93xx_interface =
-{
- .name = "ep93xx",
-
+static struct jtag_interface ep93xx_interface = {
+ .supported = DEBUG_CAP_TMS_SEQ,
.execute_queue = bitbang_execute_queue,
+};
+
+struct adapter_driver ep93xx_adapter_driver = {
+ .name = "ep93xx",
+ .transports = jtag_only,
- .speed = ep93xx_speed,
- .register_commands = ep93xx_register_commands,
.init = ep93xx_init,
.quit = ep93xx_quit,
+ .reset = ep93xx_reset,
+
+ .jtag_ops = &ep93xx_interface,
};
-static struct bitbang_interface ep93xx_bitbang =
-{
+static struct bitbang_interface ep93xx_bitbang = {
.read = ep93xx_read,
.write = ep93xx_write,
- .reset = ep93xx_reset,
.blink = 0,
};
-static int ep93xx_read(void)
+static bb_value_t ep93xx_read(void)
{
- return !!(*gpio_data_register & TDO_BIT);
+ return (*gpio_data_register & TDO_BIT) ? BB_HIGH : BB_LOW;
}
-static void ep93xx_write(int tck, int tms, int tdi)
+static int ep93xx_write(int tck, int tms, int tdi)
{
if (tck)
output_value |= TCK_BIT;
*gpio_data_register = output_value;
nanosleep(&ep93xx_zzzz, NULL);
+
+ return ERROR_OK;
}
/* (1) assert or (0) deassert reset lines */
-static void ep93xx_reset(int trst, int srst)
+static int ep93xx_reset(int trst, int srst)
{
if (trst == 0)
output_value |= TRST_BIT;
*gpio_data_register = output_value;
nanosleep(&ep93xx_zzzz, NULL);
-}
-
-static int ep93xx_speed(int speed)
-{
-
- return ERROR_OK;
-}
-
-static int ep93xx_register_commands(struct command_context *cmd_ctx)
-{
return ERROR_OK;
}
static int set_gonk_mode(void)
{
- void *syscon;
- uint32_t devicecfg;
-
- syscon = mmap(NULL, 4096, PROT_READ | PROT_WRITE,
+ void *syscon = mmap(NULL, 4096, PROT_READ | PROT_WRITE,
MAP_SHARED, dev_mem_fd, 0x80930000);
if (syscon == MAP_FAILED) {
- perror("mmap");
+ LOG_ERROR("mmap: %s", strerror(errno));
return ERROR_JTAG_INIT_FAILED;
}
- devicecfg = *((volatile int *)(syscon + 0x80));
- *((volatile int *)(syscon + 0xc0)) = 0xaa;
- *((volatile int *)(syscon + 0x80)) = devicecfg | 0x08000000;
+ uint32_t devicecfg = *((volatile uint32_t *)((uintptr_t)syscon + 0x80));
+ *((volatile uint32_t *)((uintptr_t)syscon + 0xc0)) = 0xaa;
+ *((volatile uint32_t *)((uintptr_t)syscon + 0x80)) = devicecfg | 0x08000000;
munmap(syscon, 4096);
dev_mem_fd = open("/dev/mem", O_RDWR | O_SYNC);
if (dev_mem_fd < 0) {
- perror("open");
+ LOG_ERROR("open: %s", strerror(errno));
return ERROR_JTAG_INIT_FAILED;
}
gpio_controller = mmap(NULL, 4096, PROT_READ | PROT_WRITE,
MAP_SHARED, dev_mem_fd, 0x80840000);
if (gpio_controller == MAP_FAILED) {
- perror("mmap");
+ LOG_ERROR("mmap: %s", strerror(errno));
close(dev_mem_fd);
return ERROR_JTAG_INIT_FAILED;
}
gpio_data_register = gpio_controller + 0x08;
gpio_data_direction_register = gpio_controller + 0x18;
- LOG_INFO("gpio_data_register = %p\n", gpio_data_register);
- LOG_INFO("gpio_data_direction_reg = %p\n", gpio_data_direction_register);
+ LOG_INFO("gpio_data_register = %p", gpio_data_register);
+ LOG_INFO("gpio_data_direction_reg = %p", gpio_data_direction_register);
/*
* Configure bit 0 (TDO) as an input, and bits 1-5 (TDI, TCK
* TMS, TRST, SRST) as outputs. Drive TDI and TCK low, and
projects / fw / openocd / blobdiff