diff options
author | Zachary T Welch <zw@superlucidity.net> | 2009-12-02 17:18:05 -0800 |
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committer | Zachary T Welch <zw@superlucidity.net> | 2009-12-02 23:27:09 -0800 |
commit | 865efd828a267992db0f2a92a731c5ce23a34236 (patch) | |
tree | c504af3f912c13c32ffd5f75ad98081008051c7a /src/jtag/at91rm9200.c | |
parent | fe9228a32db930be297d4d3b35ffb94d6de1b9ab (diff) |
move jtag drivers to src/jtag/drivers
Moves JTAG interface drivers to src/jtag/drivers/,
Adds src/jtag/drivers/Makefile.am.
Builds libocdjtagdrivers.la.
Flattens the rlink driver files into the drivers/ directory, adding
the 'rlink_' prefix or '.rlink' suffix as appropriate.
Diffstat (limited to 'src/jtag/at91rm9200.c')
-rw-r--r-- | src/jtag/at91rm9200.c | 292 |
1 files changed, 0 insertions, 292 deletions
diff --git a/src/jtag/at91rm9200.c b/src/jtag/at91rm9200.c deleted file mode 100644 index ff9f7a41..00000000 --- a/src/jtag/at91rm9200.c +++ /dev/null @@ -1,292 +0,0 @@ -/*************************************************************************** - * 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 "interface.h" -#include "bitbang.h" - -#include <sys/mman.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 */ - uint32_t TDO_MASK; /* TDO bitmask */ - int TRST_PIO; /* PIO holding TRST */ - uint32_t TRST_MASK; /* TRST bitmask */ - int TMS_PIO; /* PIO holding TMS */ - uint32_t TMS_MASK; /* TMS bitmask */ - int TCK_PIO; /* PIO holding TCK */ - uint32_t TCK_MASK; /* TCK bitmask */ - int TDI_PIO; /* PIO holding TDI */ - uint32_t TDI_MASK; /* TDI bitmask */ - int SRST_PIO; /* PIO holding SRST */ - uint32_t SRST_MASK; /* SRST bitmask */ -}; - -static struct device_t devices[] = -{ - { "rea_ecr", PIOD, P27, PIOA, NC, PIOD, P23, PIOD, P24, PIOD, P26, PIOC, P5 }, - { .name = NULL }, -}; - -/* configuration */ -static char* at91rm9200_device; - -/* interface variables - */ -static struct device_t* device; -static int dev_mem_fd; -static void *sys_controller; -static uint32_t* pio_base; - -/* low level command set - */ -static int at91rm9200_read(void); -static void at91rm9200_write(int tck, int tms, int tdi); -static void at91rm9200_reset(int trst, int srst); - -static int at91rm9200_speed(int speed); -static int at91rm9200_register_commands(struct command_context *cmd_ctx); -static int at91rm9200_init(void); -static int at91rm9200_quit(void); - -struct jtag_interface at91rm9200_interface = -{ - .name = "at91rm9200", - - .execute_queue = bitbang_execute_queue, - - .speed = at91rm9200_speed, - .register_commands = at91rm9200_register_commands, - .init = at91rm9200_init, - .quit = at91rm9200_quit, -}; - -static struct bitbang_interface at91rm9200_bitbang = -{ - .read = at91rm9200_read, - .write = at91rm9200_write, - .reset = at91rm9200_reset, - .blink = 0 -}; - -static int at91rm9200_read(void) -{ - return (pio_base[device->TDO_PIO + PIO_PDSR] & device->TDO_MASK) != 0; -} - -static 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 */ -static 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; -} - -static int at91rm9200_speed(int speed) -{ - - return ERROR_OK; -} - -static int at91rm9200_handle_device_command(struct command_context *cmd_ctx, char *cmd, char **CMD_ARGV, int argc) -{ - if (CMD_ARGC == 0) - return ERROR_OK; - - /* only if the device name wasn't overwritten by cmdline */ - if (at91rm9200_device == 0) - { - at91rm9200_device = malloc(strlen(CMD_ARGV[0]) + sizeof(char)); - strcpy(at91rm9200_device, CMD_ARGV[0]); - } - - return ERROR_OK; -} - -static const struct command_registration at91rm9200_command_handlers[] = { - { - .name = "at91rm9200_device", - .handler = &at91rm9200_handle_device_command, - .mode = COMMAND_CONFIG, - .help = "query armjtagew info", - }, -}; - -static int at91rm9200_register_commands(struct command_context *cmd_ctx) -{ - return register_commands(cmd_ctx, NULL, at91rm9200_command_handlers); -} - -static int at91rm9200_init(void) -{ - struct device_t *cur_device; - - cur_device = devices; - - if (at91rm9200_device == NULL || at91rm9200_device[0] == 0) - { - at91rm9200_device = "rea_ecr"; - LOG_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) - { - LOG_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 = (uint32_t*)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; -} - -static int at91rm9200_quit(void) -{ - - return ERROR_OK; -} |