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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 0x1b7ae02f;        /* ES 2 */

        default:

            hw_error("%s: Bad mpu model\n", __FUNCTION__);

        }

    case 0x208:        /* PRODUCTION_ID_reg for OMAP2 */

    case 0x210:        /* PRODUCTION_ID_reg for OMAP3 */

        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:

            return 0x000000f0;

        default:

            hw_error("%s: Bad mpu model\n", __FUNCTION__);

        }

    case 0x20c:

        switch (s->mpu_model) {

        case omap2420:

        case omap2422:

        case omap2423:

            return 0xcafeb5d9;        /* ES 2.2 */

        case omap2430:

            return 0xcafeb68a;        /* ES 2.2 */

        case omap3430:

            return 0xcafeb7ae;        /* ES 2 */

        default:

            hw_error("%s: Bad mpu model\n", __FUNCTION__);

        }

    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);

}