- added missing AT91RM9200 files

- bumped OpenOCD version date


git-svn-id: svn://svn.berlios.de/openocd/trunk@91 b42882b7-edfa-0310-969c-e2dbd0fdcd60

1 files changed, 294 insertions, 0 deletions

diff --git a/src/jtag/at91rm9200.c b/src/jtag/at91rm9200.c
new file mode 100644
index 00000000..5497b561
--- /dev/null
+++ b/src/jtag/at91rm9200.c
@@ -0,0 +1,294 @@
+/***************************************************************************
+ *   Copyright (C) 2006 by Anders Larsen                                   *
+ *   al@alarsen.net                                                        *
+ *                                                                         *
+ *   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 "log.h"
+#include "jtag.h"
+#include "bitbang.h"
+
+/* system includes */
+#include <sys/io.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+/* AT91RM9200 */
+#define AT91C_BASE_SYS	(0xfffff000)
+
+/* GPIO assignment */
+#define PIOA	(0 << 7)
+#define PIOB	(1 << 7)
+#define PIOC	(2 << 7)
+#define PIOD	(3 << 7)
+
+#define PIO_PER		(0)		/* PIO enable */
+#define PIO_OER		(4)		/* output enable */
+#define PIO_ODR		(5)		/* output disable */
+#define PIO_SODR	(12)		/* set output data */
+#define PIO_CODR	(13)		/* clear output data */
+#define PIO_PDSR	(15)		/* pin data status */
+#define PIO_PPUER	(25)		/* pull-up enable */
+
+#define NC	(0)			/* not connected */
+#define P0	(1 << 0)
+#define P1	(1 << 1)
+#define P2	(1 << 2)
+#define P3	(1 << 3)
+#define P4	(1 << 4)
+#define P5	(1 << 5)
+#define P6	(1 << 6)
+#define P7	(1 << 7)
+#define P8	(1 << 8)
+#define P9	(1 << 9)
+#define P10	(1 << 10)
+#define P11	(1 << 11)
+#define P12	(1 << 12)
+#define P13	(1 << 13)
+#define P14	(1 << 14)
+#define P15	(1 << 15)
+#define P16	(1 << 16)
+#define P17	(1 << 17)
+#define P18	(1 << 18)
+#define P19	(1 << 19)
+#define P20	(1 << 20)
+#define P21	(1 << 21)
+#define P22	(1 << 22)
+#define P23	(1 << 23)
+#define P24	(1 << 24)
+#define P25	(1 << 25)
+#define P26	(1 << 26)
+#define P27	(1 << 27)
+#define P28	(1 << 28)
+#define P29	(1 << 29)
+#define P30	(1 << 30)
+#define P31	(1 << 31)
+
+struct device_t
+{
+	char* name;
+	int TDO_PIO;	/* PIO holding TDO */
+	u32 TDO_MASK;	/* TDO bitmask */
+	int TRST_PIO;	/* PIO holding TRST */
+	u32 TRST_MASK;	/* TRST bitmask */
+	int TMS_PIO;	/* PIO holding TMS */
+	u32 TMS_MASK;	/* TMS bitmask */
+	int TCK_PIO;	/* PIO holding TCK */
+	u32 TCK_MASK;	/* TCK bitmask */
+	int TDI_PIO;	/* PIO holding TDI */
+	u32 TDI_MASK;	/* TDI bitmask */
+	int SRST_PIO;	/* PIO holding SRST */
+	u32 SRST_MASK;	/* SRST bitmask */
+};
+
+struct device_t devices[] =
+{
+	{ "rea_ecr", PIOD, P27, PIOA, NC, PIOD, P23, PIOD, P24, PIOD, P26, PIOC, P5 },
+	{ NULL, 0 }
+};
+
+/* configuration */
+char* at91rm9200_device;
+
+/* interface variables
+ */
+static struct device_t* device;
+static int dev_mem_fd;
+static void *sys_controller;
+static u32* pio_base;
+
+/* low level command set
+ */
+int at91rm9200_read(void);
+void at91rm9200_write(int tck, int tms, int tdi);
+void at91rm9200_reset(int trst, int srst);
+
+int at91rm9200_speed(int speed);
+int at91rm9200_register_commands(struct command_context_s *cmd_ctx);
+int at91rm9200_init(void);
+int at91rm9200_quit(void);
+
+jtag_interface_t at91rm9200_interface =
+{
+	.name = "at91rm9200",
+
+	.execute_queue = bitbang_execute_queue,
+
+	.support_pathmove = 0,
+
+	.speed = at91rm9200_speed,
+	.register_commands = at91rm9200_register_commands,
+	.init = at91rm9200_init,
+	.quit = at91rm9200_quit,
+};
+
+bitbang_interface_t at91rm9200_bitbang =
+{
+	.read = at91rm9200_read,
+	.write = at91rm9200_write,
+	.reset = at91rm9200_reset
+};
+
+int at91rm9200_read(void)
+{
+	return (pio_base[device->TDO_PIO + PIO_PDSR] & device->TDO_MASK) != 0;
+}
+
+void at91rm9200_write(int tck, int tms, int tdi)
+{
+	if (tck)
+		pio_base[device->TCK_PIO + PIO_SODR] = device->TCK_MASK;
+	else
+		pio_base[device->TCK_PIO + PIO_CODR] = device->TCK_MASK;
+
+	if (tms)
+		pio_base[device->TMS_PIO + PIO_SODR] = device->TMS_MASK;
+	else
+		pio_base[device->TMS_PIO + PIO_CODR] = device->TMS_MASK;
+
+	if (tdi)
+		pio_base[device->TDI_PIO + PIO_SODR] = device->TDI_MASK;
+	else
+		pio_base[device->TDI_PIO + PIO_CODR] = device->TDI_MASK;
+}
+
+/* (1) assert or (0) deassert reset lines */
+void at91rm9200_reset(int trst, int srst)
+{
+	if (trst == 0)
+		pio_base[device->TRST_PIO + PIO_SODR] = device->TRST_MASK;
+	else if (trst == 1)
+		pio_base[device->TRST_PIO + PIO_CODR] = device->TRST_MASK;
+
+	if (srst == 0)
+		pio_base[device->SRST_PIO + PIO_SODR] = device->SRST_MASK;
+	else if (srst == 1)
+		pio_base[device->SRST_PIO + PIO_CODR] = device->SRST_MASK;
+}
+
+int at91rm9200_speed(int speed)
+{
+
+	return ERROR_OK;
+}
+
+int at91rm9200_handle_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+	if (argc == 0)
+		return ERROR_OK;
+
+	/* only if the device name wasn't overwritten by cmdline */
+	if (at91rm9200_device == 0)
+	{
+		at91rm9200_device = malloc(strlen(args[0]) + sizeof(char));
+		strcpy(at91rm9200_device, args[0]);
+	}
+
+	return ERROR_OK;
+}
+
+int at91rm9200_register_commands(struct command_context_s *cmd_ctx)
+{
+	register_command(cmd_ctx, NULL, "at91rm9200_device", at91rm9200_handle_device_command,
+		COMMAND_CONFIG, NULL);
+	return ERROR_OK;
+}
+
+int at91rm9200_init(void)
+{
+	int ret;
+	struct device_t *cur_device;
+
+	cur_device = devices;
+
+	if (at91rm9200_device == NULL || at91rm9200_device[0] == 0)
+	{
+		at91rm9200_device = "rea_ecr";
+		WARNING("No at91rm9200 device specified, using default 'rea_ecr'");
+	}
+
+	while (cur_device->name)
+	{
+		if (strcmp(cur_device->name, at91rm9200_device) == 0)
+		{
+			device = cur_device;
+			break;
+		}
+		cur_device++;
+	}
+
+	if (!device)
+	{
+		ERROR("No matching device found for %s", at91rm9200_device);
+		return ERROR_JTAG_INIT_FAILED;
+	}
+
+	bitbang_interface = &at91rm9200_bitbang;
+
+	dev_mem_fd = open("/dev/mem", O_RDWR | O_SYNC);
+	if (dev_mem_fd < 0) {
+		perror("open");
+		return ERROR_JTAG_INIT_FAILED;
+	}
+
+	sys_controller = mmap(NULL, 4096, PROT_READ | PROT_WRITE,
+				MAP_SHARED, dev_mem_fd, AT91C_BASE_SYS);
+	if (sys_controller == MAP_FAILED) {
+		perror("mmap");
+		close(dev_mem_fd);
+		return ERROR_JTAG_INIT_FAILED;
+	}
+	pio_base = (u32*)sys_controller + 0x100;
+
+	/*
+	 * Configure TDO as an input, and TDI, TCK, TMS, TRST, SRST
+	 * as outputs.  Drive TDI and TCK low, and TMS/TRST/SRST high.
+	 */
+	pio_base[device->TDI_PIO + PIO_CODR] = device->TDI_MASK;
+	pio_base[device->TDI_PIO + PIO_OER] = device->TDI_MASK;
+	pio_base[device->TDI_PIO + PIO_PER] = device->TDI_MASK;
+	pio_base[device->TCK_PIO + PIO_CODR] = device->TCK_MASK;
+	pio_base[device->TCK_PIO + PIO_OER] = device->TCK_MASK;
+	pio_base[device->TCK_PIO + PIO_PER] = device->TCK_MASK;
+	pio_base[device->TMS_PIO + PIO_SODR] = device->TMS_MASK;
+	pio_base[device->TMS_PIO + PIO_OER] = device->TMS_MASK;
+	pio_base[device->TMS_PIO + PIO_PER] = device->TMS_MASK;
+	pio_base[device->TRST_PIO + PIO_SODR] = device->TRST_MASK;
+	pio_base[device->TRST_PIO + PIO_OER] = device->TRST_MASK;
+	pio_base[device->TRST_PIO + PIO_PER] = device->TRST_MASK;
+	pio_base[device->SRST_PIO + PIO_SODR] = device->SRST_MASK;
+	pio_base[device->SRST_PIO + PIO_OER] = device->SRST_MASK;
+	pio_base[device->SRST_PIO + PIO_PER] = device->SRST_MASK;
+	pio_base[device->TDO_PIO + PIO_ODR] = device->TDO_MASK;
+	pio_base[device->TDO_PIO + PIO_PPUER] = device->TDO_MASK;
+	pio_base[device->TDO_PIO + PIO_PER] = device->TDO_MASK;
+
+	return ERROR_OK;
+}
+
+int at91rm9200_quit(void)
+{
+
+	return ERROR_OK;
+}