/* * 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/hw.h" #include "hw/omap.h" /* TEST-Chip-level TAP */ static uint64_t omap_tap_read(void *opaque, hwaddr 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, hwaddr 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); }