1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/***************************************************************************
* Copyright (C) 2006 by Magnus Lundin *
* lundin@mlu.mine.nu *
* *
* Copyright (C) 2008 by Spencer Oliver *
* spen@spen-soft.co.uk *
* *
* 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 ARM_ADI_V5_H
#define ARM_ADI_V5_H
#include "arm_jtag.h"
#define DAP_IR_DPACC 0xA
#define DAP_IR_APACC 0xB
#define DPAP_WRITE 0
#define DPAP_READ 1
#define DP_ZERO 0
#define DP_CTRL_STAT 0x4
#define DP_SELECT 0x8
#define DP_RDBUFF 0xC
#define CORUNDETECT (1 << 0)
#define SSTICKYORUN (1 << 1)
#define SSTICKYERR (1 << 5)
#define CDBGRSTREQ (1 << 26)
#define CDBGRSTACK (1 << 27)
#define CDBGPWRUPREQ (1 << 28)
#define CDBGPWRUPACK (1 << 29)
#define CSYSPWRUPREQ (1 << 30)
#define CSYSPWRUPACK (1 << 31)
#define AP_REG_CSW 0x00
#define AP_REG_TAR 0x04
#define AP_REG_DRW 0x0C
#define AP_REG_BD0 0x10
#define AP_REG_BD1 0x14
#define AP_REG_BD2 0x18
#define AP_REG_BD3 0x1C
#define AP_REG_DBGROMA 0xF8
#define AP_REG_IDR 0xFC
#define CSW_8BIT 0
#define CSW_16BIT 1
#define CSW_32BIT 2
#define CSW_ADDRINC_MASK (3 << 4)
#define CSW_ADDRINC_OFF 0
#define CSW_ADDRINC_SINGLE (1 << 4)
#define CSW_ADDRINC_PACKED (2 << 4)
#define CSW_HPROT (1 << 25)
#define CSW_MASTER_DEBUG (1 << 29)
#define CSW_DBGSWENABLE (1 << 31)
/* transaction mode */
#define TRANS_MODE_NONE 0
/* Transaction waits for previous to complete */
#define TRANS_MODE_ATOMIC 1
/* Freerunning transactions with delays and overrun checking */
#define TRANS_MODE_COMPOSITE 2
struct swjdp_reg
{
int addr;
struct arm_jtag *jtag_info;
};
struct swjdp_common
{
struct arm_jtag *jtag_info;
/* Control config */
uint32_t dp_ctrl_stat;
/* Support for several AP's in one DAP */
uint32_t apsel;
/* Register select cache */
uint32_t dp_select_value;
uint32_t ap_csw_value;
uint32_t ap_tar_value;
/* information about current pending SWjDP-AHBAP transaction */
uint8_t trans_mode;
uint8_t trans_rw;
uint8_t ack;
/* extra tck clocks for memory bus access */
uint32_t memaccess_tck;
/* Size of TAR autoincrement block, ARM ADI Specification requires at least 10 bits */
uint32_t tar_autoincr_block;
};
/* Accessor function for currently selected DAP-AP number */
static inline uint8_t dap_ap_get_select(struct swjdp_common *swjdp)
{
return (uint8_t)(swjdp ->apsel >> 24);
}
/* Internal functions used in the module, partial transactions, use with caution */
int dap_dp_write_reg(struct swjdp_common *swjdp, uint32_t value, uint8_t reg_addr);
/* int swjdp_write_apacc(struct swjdp_common *swjdp, uint32_t value, uint8_t reg_addr); */
int dap_dp_read_reg(struct swjdp_common *swjdp, uint32_t *value, uint8_t reg_addr);
/* int swjdp_read_apacc(struct swjdp_common *swjdp, uint32_t *value, uint8_t reg_addr); */
int dap_setup_accessport(struct swjdp_common *swjdp, uint32_t csw, uint32_t tar);
int dap_ap_select(struct swjdp_common *swjdp,uint8_t apsel);
int dap_ap_write_reg(struct swjdp_common *swjdp, uint32_t addr, uint8_t* out_buf);
int dap_ap_write_reg_u32(struct swjdp_common *swjdp, uint32_t addr, uint32_t value);
int dap_ap_read_reg(struct swjdp_common *swjdp, uint32_t addr, uint8_t *in_buf);
int dap_ap_read_reg_u32(struct swjdp_common *swjdp, uint32_t addr, uint32_t *value);
/* External interface, partial operations must be completed with swjdp_transaction_endcheck() */
int swjdp_transaction_endcheck(struct swjdp_common *swjdp);
/* MEM-AP memory mapped bus single uint32_t register transfers, without endcheck */
int mem_ap_read_u32(struct swjdp_common *swjdp, uint32_t address, uint32_t *value);
int mem_ap_write_u32(struct swjdp_common *swjdp, uint32_t address, uint32_t value);
/* MEM-AP memory mapped bus transfers, single registers, complete transactions */
int mem_ap_read_atomic_u32(struct swjdp_common *swjdp,
uint32_t address, uint32_t *value);
int mem_ap_write_atomic_u32(struct swjdp_common *swjdp,
uint32_t address, uint32_t value);
/* MEM-AP memory mapped bus block transfers */
int mem_ap_read_buf_u8(struct swjdp_common *swjdp,
uint8_t *buffer, int count, uint32_t address);
int mem_ap_read_buf_u16(struct swjdp_common *swjdp,
uint8_t *buffer, int count, uint32_t address);
int mem_ap_read_buf_u32(struct swjdp_common *swjdp,
uint8_t *buffer, int count, uint32_t address);
int mem_ap_write_buf_u8(struct swjdp_common *swjdp,
uint8_t *buffer, int count, uint32_t address);
int mem_ap_write_buf_u16(struct swjdp_common *swjdp,
uint8_t *buffer, int count, uint32_t address);
int mem_ap_write_buf_u32(struct swjdp_common *swjdp,
uint8_t *buffer, int count, uint32_t address);
/* Initialisation of the debug system, power domains and registers */
int ahbap_debugport_init(struct swjdp_common *swjdp);
/* Commands for user dap access */
int dap_info_command(struct command_context *cmd_ctx,
struct swjdp_common *swjdp, int apsel);
#define DAP_COMMAND_HANDLER(name) \
COMMAND_HELPER(name, struct swjdp_common *swjdp)
DAP_COMMAND_HANDLER(dap_baseaddr_command);
DAP_COMMAND_HANDLER(dap_memaccess_command);
DAP_COMMAND_HANDLER(dap_apsel_command);
DAP_COMMAND_HANDLER(dap_apid_command);
#endif
|
