1 files changed, 117 insertions, 0 deletions
diff --git a/src/hw/misc/omap_tap.c b/src/hw/misc/omap_tap.c
new file mode 100644
index 0000000..6f02bb9
--- /dev/null
+++ b/src/hw/misc/omap_tap.c
@@ -0,0 +1,117 @@
+/*
+ * 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/arm/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) {
+        omap_badwidth_write32(opaque, addr, value);
+        return;
+    }
+
+    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, NULL, &omap_tap_ops, mpu, "omap.tap",
+                          omap_l4_region_size(ta, 0));
+    omap_l4_attach(ta, 0, &mpu->tap_iomem);
+}