Revert "Recognize separate IAR status and IAR ACK registers"

    * Turns out Vivado changed the interrupt ack register back to 0x0c

This reverts commit e63deaf5.

arch/axi4mm/src/tapasco_address_map.c

@@ -55,8 +55,6 @@ tapasco_reg_addr_t tapasco_address_map_func_reg(tapasco_dev_ctx_t *dev_ctx,
 		return platform_address_get_slot_base(slot_id, 0) + 0x0c;
 	case TAPASCO_FUNC_REG_RETURN:
 		return platform_address_get_slot_base(slot_id, 0) + 0x10;
-	case TAPASCO_FUNC_REG_IAR_ACK:
-		return platform_address_get_slot_base(slot_id, 0) + 0x1c;
 	default:
 		return 0;
 	}

arch/common/include/tapasco_address_map.h

@@ -36,10 +36,8 @@ typedef enum {
 	TAPASCO_FUNC_REG_BASE,
 	/** Control register (start). */
 	TAPASCO_FUNC_REG_CONTROL,
-	/** Function interrupt status register (if any). */
-	TAPASCO_FUNC_REG_IAR,
 	/** Function interrupt acknowledge register (if any). */
-	TAPASCO_FUNC_REG_IAR_ACK,
+	TAPASCO_FUNC_REG_IAR,
 	/** Register with return value of function (if any). */
 	TAPASCO_FUNC_REG_RETURN
 } tapasco_func_reg_t;

arch/common/src/tapasco_functions.c

@@ -107,7 +107,7 @@ void tapasco_functions_setup_system(tapasco_dev_ctx_t *dev_ctx, tapasco_function
 				slot_id, TAPASCO_FUNC_REG_IAR), sizeof(d), &d, 
 				PLATFORM_CTL_FLAGS_NONE);
 			platform_write_ctl(tapasco_address_map_func_reg(dev_ctx,
-				slot_id, TAPASCO_FUNC_REG_IAR_ACK), sizeof(d), &d,
+				slot_id, TAPASCO_FUNC_REG_IAR), sizeof(d), &d,
 				PLATFORM_CTL_FLAGS_NONE);
 			d = 1;
 		}

arch/common/src/tapasco_scheduler.c

@@ -127,7 +127,7 @@ tapasco_res_t tapasco_scheduler_launch(
 
 	// ack the interrupt
 	if (platform_write_ctl(tapasco_address_map_func_reg(dev_ctx, slot_id,
-			TAPASCO_FUNC_REG_IAR_ACK), sizeof(start_cmd), &start_cmd,
+			TAPASCO_FUNC_REG_IAR), sizeof(start_cmd), &start_cmd,
 			PLATFORM_CTL_FLAGS_NONE) != PLATFORM_SUCCESS)
 		return TAPASCO_FAILURE;