Merge bf533_ezkit.c into bf537_stamp.c.
git-svn-id: https://urjtag.svn.sourceforge.net/svnroot/urjtag/trunk@1750 b68d4a1b-bc3d-0410-92ed-d4ac073336b7master
Jie Zhang
15 years ago
parent
4c667fa679
commit
030487bdd8
@ -1,336 +0,0 @@
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/*
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* $Id$
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*
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* Copyright (C) 2002 ETC s.r.o.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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* Written by Christian Pellegrin <chri@ascensit.com>, 2003.
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* Modified by Marcel Telka <marcel@telka.sk>, 2003.
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*
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*/
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#include <sysdep.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <urjtag/part.h>
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#include <urjtag/bus.h>
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#include <urjtag/chain.h>
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#include <urjtag/bssignal.h>
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#include "buses.h"
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#include "generic_bus.h"
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typedef struct
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{
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urj_part_signal_t *ams[4];
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urj_part_signal_t *addr[19];
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urj_part_signal_t *data[16];
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urj_part_signal_t *abe[2];
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urj_part_signal_t *awe;
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urj_part_signal_t *aoe;
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urj_part_signal_t *sras;
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urj_part_signal_t *scas;
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urj_part_signal_t *sms;
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urj_part_signal_t *swe;
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} bus_params_t;
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#define AMS ((bus_params_t *) bus->params)->ams
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#define ADDR ((bus_params_t *) bus->params)->addr
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#define DATA ((bus_params_t *) bus->params)->data
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#define AWE ((bus_params_t *) bus->params)->awe
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#define AOE ((bus_params_t *) bus->params)->aoe
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#define ABE ((bus_params_t *) bus->params)->abe
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#define SRAS ((bus_params_t *) bus->params)->sras
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#define SCAS ((bus_params_t *) bus->params)->scas
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#define SMS ((bus_params_t *) bus->params)->sms
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#define SWE ((bus_params_t *) bus->params)->swe
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/**
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* bus->driver->(*new_bus)
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*
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*/
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static urj_bus_t *
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bf533_ezkit_bus_new (urj_chain_t *chain, const urj_bus_driver_t *driver,
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const urj_param_t *cmd_params[])
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{
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urj_bus_t *bus;
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urj_part_t *part;
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char buff[15];
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int i;
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int failed = 0;
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bus = urj_bus_generic_new (chain, driver, sizeof (bus_params_t));
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if (bus == NULL)
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return NULL;
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part = bus->part;
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for (i = 0; i < 4; i++)
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{
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sprintf (buff, "AMS_B%d", i);
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failed |= urj_bus_generic_attach_sig (part, &(AMS[i]), buff);
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}
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for (i = 0; i < 19; i++)
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{
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sprintf (buff, "ADDR[%d]", i + 1);
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failed |= urj_bus_generic_attach_sig (part, &(ADDR[i]), buff);
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}
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for (i = 0; i < 16; i++)
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{
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sprintf (buff, "DATA[%d]", i);
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failed |= urj_bus_generic_attach_sig (part, &(DATA[i]), buff);
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}
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failed |= urj_bus_generic_attach_sig (part, &(AWE), "AWE_B");
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failed |= urj_bus_generic_attach_sig (part, &(AOE), "AOE_B");
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failed |= urj_bus_generic_attach_sig (part, &(ABE[0]), "ABE_B0");
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failed |= urj_bus_generic_attach_sig (part, &(ABE[1]), "ABE_B1");
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failed |= urj_bus_generic_attach_sig (part, &(SRAS), "SRAS_B");
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failed |= urj_bus_generic_attach_sig (part, &(SCAS), "SCAS_B");
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failed |= urj_bus_generic_attach_sig (part, &(SWE), "SWE_B");
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failed |= urj_bus_generic_attach_sig (part, &(SMS), "SMS_B");
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if (failed)
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{
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urj_bus_generic_free (bus);
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return NULL;
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}
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return bus;
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}
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/**
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* bus->driver->(*printinfo)
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*
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*/
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static void
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bf533_ezkit_bus_printinfo (urj_log_level_t ll, urj_bus_t *bus)
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{
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int i;
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for (i = 0; i < bus->chain->parts->len; i++)
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if (bus->part == bus->chain->parts->parts[i])
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break;
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urj_log (ll, _("Blackfin BF533 EZKit compatible bus driver via BSR (JTAG part No. %d)\n"),
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i);
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}
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/**
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* bus->driver->(*area)
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*
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*/
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static int
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bf533_ezkit_bus_area (urj_bus_t *bus, uint32_t adr, urj_bus_area_t *area)
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{
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area->description = NULL;
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area->start = UINT32_C (0x00000000);
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area->length = UINT64_C (0x100000000);
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area->width = 16;
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return URJ_STATUS_OK;
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}
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static void
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select_flash (urj_bus_t *bus)
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{
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urj_part_t *p = bus->part;
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urj_part_set_signal (p, AMS[0], 1, 0);
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urj_part_set_signal (p, AMS[1], 1, 1);
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urj_part_set_signal (p, AMS[2], 1, 1);
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urj_part_set_signal (p, AMS[3], 1, 1);
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urj_part_set_signal (p, ABE[0], 1, 0);
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urj_part_set_signal (p, ABE[1], 1, 0);
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urj_part_set_signal (p, SRAS, 1, 1);
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urj_part_set_signal (p, SCAS, 1, 1);
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urj_part_set_signal (p, SWE, 1, 1);
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urj_part_set_signal (p, SMS, 1, 1);
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}
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static void
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unselect_flash (urj_bus_t *bus)
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{
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urj_part_t *p = bus->part;
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urj_part_set_signal (p, AMS[0], 1, 1);
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urj_part_set_signal (p, AMS[1], 1, 1);
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urj_part_set_signal (p, AMS[2], 1, 1);
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urj_part_set_signal (p, AMS[3], 1, 1);
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urj_part_set_signal (p, ABE[0], 1, 1);
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urj_part_set_signal (p, ABE[1], 1, 1);
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urj_part_set_signal (p, SRAS, 1, 1);
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urj_part_set_signal (p, SCAS, 1, 1);
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urj_part_set_signal (p, SWE, 1, 1);
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urj_part_set_signal (p, SMS, 1, 1);
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}
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static void
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setup_address (urj_bus_t *bus, uint32_t a)
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{
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int i;
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urj_part_t *p = bus->part;
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for (i = 0; i < 19; i++)
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urj_part_set_signal (p, ADDR[i], 1, (a >> (i + 1)) & 1);
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}
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static void
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set_data_in (urj_bus_t *bus)
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{
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int i;
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urj_part_t *p = bus->part;
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for (i = 0; i < 16; i++)
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urj_part_set_signal (p, DATA[i], 0, 0);
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}
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static void
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setup_data (urj_bus_t *bus, uint32_t d)
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{
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int i;
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urj_part_t *p = bus->part;
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for (i = 0; i < 16; i++)
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urj_part_set_signal (p, DATA[i], 1, (d >> i) & 1);
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}
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/**
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* bus->driver->(*read_start)
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*
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*/
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static int
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bf533_ezkit_bus_read_start (urj_bus_t *bus, uint32_t adr)
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{
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urj_part_t *p = bus->part;
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urj_chain_t *chain = bus->chain;
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select_flash (bus);
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urj_part_set_signal (p, AOE, 1, 0);
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urj_part_set_signal (p, AWE, 1, 1);
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setup_address (bus, adr);
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set_data_in (bus);
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urj_tap_chain_shift_data_registers (chain, 0);
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return URJ_STATUS_OK;
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}
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/**
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* bus->driver->(*read_next)
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*
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*/
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static uint32_t
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bf533_ezkit_bus_read_next (urj_bus_t *bus, uint32_t adr)
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{
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urj_part_t *p = bus->part;
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urj_chain_t *chain = bus->chain;
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int i;
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uint32_t d = 0;
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setup_address (bus, adr);
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urj_tap_chain_shift_data_registers (chain, 1);
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for (i = 0; i < 16; i++)
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d |= (uint32_t) (urj_part_get_signal (p, DATA[i]) << i);
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return d;
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}
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/**
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* bus->driver->(*read_end)
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*
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*/
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static uint32_t
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bf533_ezkit_bus_read_end (urj_bus_t *bus)
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{
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urj_part_t *p = bus->part;
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urj_chain_t *chain = bus->chain;
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int i;
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uint32_t d = 0;
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unselect_flash (bus);
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urj_part_set_signal (p, AOE, 1, 1);
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urj_part_set_signal (p, AWE, 1, 1);
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urj_tap_chain_shift_data_registers (chain, 1);
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for (i = 0; i < 16; i++)
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d |= (uint32_t) (urj_part_get_signal (p, DATA[i]) << i);
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return d;
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}
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/**
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* bus->driver->(*write)
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*
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*/
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static void
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bf533_ezkit_bus_write (urj_bus_t *bus, uint32_t adr, uint32_t data)
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{
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urj_part_t *p = bus->part;
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urj_chain_t *chain = bus->chain;
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urj_log (URJ_LOG_LEVEL_COMM, "Writing %04lX to %08lX...\n",
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(long unsigned) data, (long unsigned) adr);
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select_flash (bus);
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urj_part_set_signal (p, AOE, 1, 1);
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setup_address (bus, adr);
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setup_data (bus, data);
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urj_tap_chain_shift_data_registers (chain, 0);
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urj_part_set_signal (p, AWE, 1, 0);
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urj_tap_chain_shift_data_registers (chain, 0);
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urj_part_set_signal (p, AWE, 1, 1);
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unselect_flash (bus);
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urj_tap_chain_shift_data_registers (chain, 0);
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}
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const urj_bus_driver_t urj_bus_bf533_ezkit_bus = {
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"bf533_ezkit",
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N_("Blackfin BF533 EZKit board bus driver"),
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bf533_ezkit_bus_new,
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urj_bus_generic_free,
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bf533_ezkit_bus_printinfo,
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urj_bus_generic_prepare_extest,
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bf533_ezkit_bus_area,
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bf533_ezkit_bus_read_start,
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bf533_ezkit_bus_read_next,
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bf533_ezkit_bus_read_end,
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urj_bus_generic_read,
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bf533_ezkit_bus_write,
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urj_bus_generic_no_init
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};
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