|
- /***************************************************************************
- * Copyright (C) 2005 by Dominic Rath *
- * Dominic.Rath@gmx.de *
- * *
- * Copyright (C) 2007,2008 Øyvind Harboe *
- * oyvind.harboe@zylin.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 of the License, or *
- * (at your option) any later version. *
- * *
- * 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, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- ***************************************************************************/
- #ifndef XSCALE_H
- #define XSCALE_H
-
- #include "arm.h"
- #include "armv4_5_mmu.h"
- #include "trace.h"
-
- #define XSCALE_COMMON_MAGIC 0x58534341
-
- /* These four JTAG instructions are architecturally defined.
- * Lengths are core-specific; originally 5 bits, later 7.
- */
- #define XSCALE_DBGRX 0x02
- #define XSCALE_DBGTX 0x10
- #define XSCALE_LDIC 0x07
- #define XSCALE_SELDCSR 0x09
-
- /* Possible CPU types */
- #define XSCALE_IXP4XX_PXA2XX 0x0
- #define XSCALE_PXA3XX 0x4
-
- enum xscale_debug_reason
- {
- XSCALE_DBG_REASON_GENERIC,
- XSCALE_DBG_REASON_RESET,
- XSCALE_DBG_REASON_TB_FULL,
- };
-
- enum xscale_trace_entry_type
- {
- XSCALE_TRACE_MESSAGE = 0x0,
- XSCALE_TRACE_ADDRESS = 0x1,
- };
-
- struct xscale_trace_entry
- {
- uint8_t data;
- enum xscale_trace_entry_type type;
- };
-
- struct xscale_trace_data
- {
- struct xscale_trace_entry *entries;
- int depth;
- uint32_t chkpt0;
- uint32_t chkpt1;
- uint32_t last_instruction;
- struct xscale_trace_data *next;
- };
-
- struct xscale_trace
- {
- trace_status_t capture_status; /* current state of capture run */
- struct image *image; /* source for target opcodes */
- struct xscale_trace_data *data; /* linked list of collected trace data */
- int buffer_enabled; /* whether trace buffer is enabled */
- int buffer_fill; /* maximum number of trace runs to read (-1 for wrap-around) */
- int pc_ok;
- uint32_t current_pc;
- enum arm_state core_state; /* current core state (ARM, Thumb) */
- };
-
- struct xscale_common
- {
- /* armv4/5 common stuff */
- struct arm armv4_5_common;
-
- int common_magic;
-
- /* XScale registers (CP15, DBG) */
- struct reg_cache *reg_cache;
-
- /* current state of the debug handler */
- uint32_t handler_address;
-
- /* target-endian buffers with exception vectors */
- uint32_t low_vectors[8];
- uint32_t high_vectors[8];
-
- /* static low vectors */
- uint8_t static_low_vectors_set; /* bit field with static vectors set by the user */
- uint8_t static_high_vectors_set; /* bit field with static vectors set by the user */
- uint32_t static_low_vectors[8];
- uint32_t static_high_vectors[8];
-
- /* DCache cleaning */
- uint32_t cache_clean_address;
-
- /* whether hold_rst and ext_dbg_break should be set */
- int hold_rst;
- int external_debug_break;
-
- /* breakpoint / watchpoint handling */
- int dbr_available;
- int dbr0_used;
- int dbr1_used;
- int ibcr_available;
- int ibcr0_used;
- int ibcr1_used;
- uint32_t arm_bkpt;
- uint16_t thumb_bkpt;
-
- uint8_t vector_catch;
-
- struct xscale_trace trace;
-
- int arch_debug_reason;
-
- /* MMU/Caches */
- struct armv4_5_mmu_common armv4_5_mmu;
- uint32_t cp15_control_reg;
-
- int fast_memory_access;
-
- /* CPU variant */
- int xscale_variant;
- };
-
- static inline struct xscale_common *
- target_to_xscale(struct target *target)
- {
- return container_of(target->arch_info, struct xscale_common,
- armv4_5_common);
- }
-
- struct xscale_reg
- {
- int dbg_handler_number;
- struct target *target;
- };
-
- enum
- {
- XSCALE_MAINID, /* 0 */
- XSCALE_CACHETYPE,
- XSCALE_CTRL,
- XSCALE_AUXCTRL,
- XSCALE_TTB,
- XSCALE_DAC,
- XSCALE_FSR,
- XSCALE_FAR,
- XSCALE_PID,
- XSCALE_CPACCESS,
- XSCALE_IBCR0, /* 10 */
- XSCALE_IBCR1,
- XSCALE_DBR0,
- XSCALE_DBR1,
- XSCALE_DBCON,
- XSCALE_TBREG,
- XSCALE_CHKPT0,
- XSCALE_CHKPT1,
- XSCALE_DCSR,
- XSCALE_TX,
- XSCALE_RX, /* 20 */
- XSCALE_TXRXCTRL,
- };
-
- #define ERROR_XSCALE_NO_TRACE_DATA (-1500)
-
- #endif /* XSCALE_H */
|