diff options
Diffstat (limited to 'src/pld/virtex2.c')
| -rw-r--r-- | src/pld/virtex2.c | 76 |
1 files changed, 39 insertions, 37 deletions
diff --git a/src/pld/virtex2.c b/src/pld/virtex2.c index e0ec27d..9ddd1f6 100644 --- a/src/pld/virtex2.c +++ b/src/pld/virtex2.c @@ -46,11 +46,13 @@ pld_driver_t virtex2_pld = int virtex2_set_instr(int chain_pos, u32 new_instr) { jtag_device_t *device = jtag_get_device(chain_pos); - + if (device==NULL) + return ERROR_FAIL; + if (buf_get_u32(device->cur_instr, 0, device->ir_length) != new_instr) { scan_field_t field; - + field.device = chain_pos; field.num_bits = device->ir_length; field.out_value = calloc(CEIL(field.num_bits, 8), 1); @@ -61,12 +63,12 @@ int virtex2_set_instr(int chain_pos, u32 new_instr) field.in_check_mask = NULL; field.in_handler = NULL; field.in_handler_priv = NULL; - + jtag_add_ir_scan(1, &field, TAP_RTI); - + free(field.out_value); } - + return ERROR_OK; } @@ -76,7 +78,7 @@ int virtex2_send_32(struct pld_device_s *pld_device, int num_words, u32 *words) scan_field_t scan_field; u8 *values; int i; - + values = malloc(num_words * 4); scan_field.device = virtex2_info->chain_pos; @@ -88,16 +90,16 @@ int virtex2_send_32(struct pld_device_s *pld_device, int num_words, u32 *words) scan_field.in_check_mask = NULL; scan_field.in_handler = NULL; scan_field.in_handler_priv = NULL; - + for (i = 0; i < num_words; i++) buf_set_u32(values + 4 * i, 0, 32, flip_u32(*words++, 32)); - + virtex2_set_instr(virtex2_info->chain_pos, 0x5); /* CFG_IN */ - + jtag_add_dr_scan(1, &scan_field, TAP_PD); - + free(values); - + return ERROR_OK; } @@ -112,7 +114,7 @@ int virtex2_receive_32(struct pld_device_s *pld_device, int num_words, u32 *word { virtex2_pld_device_t *virtex2_info = pld_device->driver_priv; scan_field_t scan_field; - + scan_field.device = virtex2_info->chain_pos; scan_field.num_bits = 32; scan_field.out_value = NULL; @@ -121,37 +123,37 @@ int virtex2_receive_32(struct pld_device_s *pld_device, int num_words, u32 *word scan_field.in_check_value = NULL; scan_field.in_check_mask = NULL; scan_field.in_handler = virtex2_jtag_buf_to_u32; - + virtex2_set_instr(virtex2_info->chain_pos, 0x4); /* CFG_OUT */ - + while (num_words--) { scan_field.in_handler_priv = words++; jtag_add_dr_scan(1, &scan_field, TAP_PD); } - + return ERROR_OK; } int virtex2_read_stat(struct pld_device_s *pld_device, u32 *status) { u32 data[5]; - + jtag_add_tlr(); - + data[0] = 0xaa995566; /* synch word */ data[1] = 0x2800E001; /* Type 1, read, address 7, 1 word */ data[2] = 0x20000000; /* NOOP (Type 1, read, address 0, 0 words */ data[3] = 0x20000000; /* NOOP */ data[4] = 0x20000000; /* NOOP */ virtex2_send_32(pld_device, 5, data); - + virtex2_receive_32(pld_device, 1, status); - + jtag_execute_queue(); - + LOG_DEBUG("status: 0x%8.8x", *status); - + return ERROR_OK; } @@ -171,29 +173,29 @@ int virtex2_load(struct pld_device_s *pld_device, char *filename) field.in_check_mask = NULL; field.in_handler = NULL; field.in_handler_priv = NULL; - + if ((retval = xilinx_read_bit_file(&bit_file, filename)) != ERROR_OK) return retval; - + jtag_add_end_state(TAP_RTI); virtex2_set_instr(virtex2_info->chain_pos, 0xb); /* JPROG_B */ jtag_execute_queue(); jtag_add_sleep(1000); - + virtex2_set_instr(virtex2_info->chain_pos, 0x5); /* CFG_IN */ jtag_execute_queue(); - + for (i = 0; i < bit_file.length; i++) bit_file.data[i] = flip_u32(bit_file.data[i], 8); - + field.num_bits = bit_file.length * 8; field.out_value = bit_file.data; jtag_add_dr_scan(1, &field, TAP_PD); jtag_execute_queue(); - + jtag_add_tlr(); - + jtag_add_end_state(TAP_RTI); virtex2_set_instr(virtex2_info->chain_pos, 0xc); /* JSTART */ jtag_add_runtest(13, TAP_RTI); @@ -212,13 +214,13 @@ int virtex2_handle_read_stat_command(struct command_context_s *cmd_ctx, char *cm pld_device_t *device; virtex2_pld_device_t *virtex2_info; u32 status; - + if (argc < 1) { command_print(cmd_ctx, "usage: virtex2 read_stat <num>"); return ERROR_OK; } - + device = get_pld_device_by_num(strtoul(args[0], NULL, 0)); if (!device) { @@ -227,11 +229,11 @@ int virtex2_handle_read_stat_command(struct command_context_s *cmd_ctx, char *cm } virtex2_info = device->driver_priv; - + virtex2_read_stat(device, &status); - + command_print(cmd_ctx, "virtex2 status register: 0x%8.8x", status); - + return ERROR_OK; } @@ -248,17 +250,17 @@ int virtex2_register_commands(struct command_context_s *cmd_ctx) int virtex2_pld_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct pld_device_s *pld_device) { virtex2_pld_device_t *virtex2_info; - + if (argc < 2) { LOG_WARNING("incomplete pld device 'virtex2' configuration"); return ERROR_PLD_DEVICE_INVALID; } - + virtex2_info = malloc(sizeof(virtex2_pld_device_t)); pld_device->driver_priv = virtex2_info; - + virtex2_info->chain_pos = strtoul(args[1], NULL, 0); - + return ERROR_OK; } |