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/*
* TI OMAP TEST-Chip-level TAP emulation.
*
* Copyright (C) 2007-2008 Nokia Corporation
* Written by Andrzej Zaborowski <andrew@openedhand.com>
*
* 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 or
* (at your option) any later version of the License.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "hw.h"
#include "omap.h"
/* TEST-Chip-level TAP */
static uint64_t omap_tap_read(void *opaque, target_phys_addr_t addr,
unsigned size)
{
struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
if (size != 4) {
return omap_badwidth_read32(opaque, addr);
}
switch (addr) {
case 0x204: /* IDCODE_reg */
switch (s->mpu_model) {
case omap2420:
case omap2422:
case omap2423:
return 0x5b5d902f; /* ES 2.2 */
case omap2430:
return 0x5b68a02f; /* ES 2.2 */
case omap3430:
return 0x4b7ae02f; /* ES 3.1 */
case omap3630:
return 0x1b89102f; /* ES 1.1 */
default:
hw_error("%s: Bad mpu model\n", __func__);
}
/* For OMAP2 there is a two word PRODUCTION_ID register at
* 0x208..0x210.
* For OMAP3 there is a four word PRODUCTION_ID register at
* 0x208..0x214.
*/
case 0x208: /* PRODUCTION_ID_reg bits 0-31 */
switch (s->mpu_model) {
case omap2420:
return 0x000254f0; /* POP ESHS2.1.1 in N91/93/95, ES2 in N800 */
case omap2422:
return 0x000400f0;
case omap2423:
return 0x000800f0;
case omap2430:
return 0x000000f0;
case omap3430:
case omap3630:
return 0x0;
default:
hw_error("%s: Bad mpu model\n", __func__);
}
break;
case 0x20c: /* PRODUCTION_ID bits 32-63 */
switch (s->mpu_model) {
case omap2420:
case omap2422:
case omap2423:
return 0xcafeb5d9; /* ES 2.2 */
case omap2430:
return 0xcafeb68a; /* ES 2.2 */
case omap3430:
case omap3630:
return 0x0;
default:
hw_error("%s: Bad mpu model\n", __func__);
}
break;
case 0x210: /* PRODUCTION_ID reg bits 64-95 (OMAP3 only) */
switch (s->mpu_model) {
case omap2420:
case omap2422:
case omap2423:
case omap2430:
/* OMAP3 only, break out to bad-register path */
break;
case omap3430:
case omap3630:
return 0x000f00f0;
default:
hw_error("%s: Bad mpu model\n", __func__);
}
break;
case 0x214: /* PRODUCTION_ID bits 96-127 (OMAP3 only) */
switch (s->mpu_model) {
case omap2420:
case omap2422:
case omap2423:
case omap2430:
/* OMAP3 only, break out to bad-register path */
break;
case omap3430:
return 0xcafeb7ae; /* ES 2.x/3.0 */
case omap3630:
return 0xcafeb891; /* ES 1.0/1.1 */
default:
hw_error("%s: Bad mpu model\n", __func__);
}
break;
case 0x218: /* DIE_ID_reg */
return ('Q' << 24) | ('E' << 16) | ('M' << 8) | ('U' << 0);
case 0x21c: /* DIE_ID_reg */
return 0x54 << 24;
case 0x220: /* DIE_ID_reg */
return ('Q' << 24) | ('E' << 16) | ('M' << 8) | ('U' << 0);
case 0x224: /* DIE_ID_reg */
return ('Q' << 24) | ('E' << 16) | ('M' << 8) | ('U' << 0);
}
OMAP_BAD_REG(addr);
return 0;
}
static void omap_tap_write(void *opaque, target_phys_addr_t addr,
uint64_t value, unsigned size)
{
if (size != 4) {
return omap_badwidth_write32(opaque, addr, value);
}
OMAP_BAD_REG(addr);
}
static const MemoryRegionOps omap_tap_ops = {
.read = omap_tap_read,
.write = omap_tap_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
void omap_tap_init(struct omap_target_agent_s *ta,
struct omap_mpu_state_s *mpu)
{
memory_region_init_io(&mpu->tap_iomem, &omap_tap_ops, mpu, "omap.tap",
omap_l4_region_size(ta, 0));
omap_l4_attach(ta, 0, &mpu->tap_iomem);
}
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