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David Brownell <david-b@pacbell.net> 

Cleanup some the downloaded ARM target algorithm code:

 - Provide more complete disassembly of the DCC bulk write code

 - Make code blocks "static const", in case GCC doesn't

 - Fix some tabbing/layout issues

 - Make some arm7_9_common.h flags be "bool" not "int"; and compact
   the layout a bit (group most bools together)

git-svn-id: svn://svn.berlios.de/openocd/trunk@2698 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2009-09-12 08:10:19 +00:00
parent f6a29d438e
commit c993d75d1f
3 changed files with 41 additions and 27 deletions
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35
src/target/arm7_9_common.c
View File

@ -2657,8 +2657,21 @@ static int arm7_9_dcc_completion(struct target_s *target, uint32_t exit_point, i
static const uint32_t dcc_code[] =
{
/* MRC TST BNE MRC STR B */
0xee101e10, 0xe3110001, 0x0afffffc, 0xee111e10, 0xe4801004, 0xeafffff9
/* r0 == input, points to memory buffer
* r1 == scratch
*/
/* spin until DCC control (c0) reports data arrived */
0xee101e10, /* w: mrc p14, #0, r1, c0, c0 */
0xe3110001, /* tst r1, #1 */
0x0afffffc, /* bne w */
/* read word from DCC (c1), write to memory */
0xee111e10, /* mrc p14, #0, r1, c1, c0 */
0xe4801004, /* str r1, [r0], #4 */
/* repeat */
0xeafffff9 /* b w */
};
int armv4_5_run_algorithm_inner(struct target_s *target, int num_mem_params, mem_param_t *mem_params, int num_reg_params, reg_param_t *reg_params, uint32_t entry_point, uint32_t exit_point, int timeout_ms, void *arch_info, int (*run_it)(struct target_s *target, uint32_t exit_point, int timeout_ms, void *arch_info));
@ -2736,7 +2749,7 @@ int arm7_9_checksum_memory(struct target_s *target, uint32_t address, uint32_t c
reg_param_t reg_params[2];
int retval;
uint32_t arm7_9_crc_code[] = {
static const uint32_t arm7_9_crc_code[] = {
0xE1A02000, /* mov r2, r0 */
0xE3E00000, /* mov r0, #0xffffffff */
0xE1A03001, /* mov r3, r1 */
@ -2818,15 +2831,15 @@ int arm7_9_blank_check_memory(struct target_s *target, uint32_t address, uint32_
int retval;
uint32_t i;
uint32_t erase_check_code[] =
static const uint32_t erase_check_code[] =
{
/* loop: */
0xe4d03001, /* ldrb r3, [r0], #1 */
0xe0022003, /* and r2, r2, r3 */
0xe2511001, /* subs r1, r1, #1 */
0x1afffffb, /* bne loop */
/* end: */
0xeafffffe /* b end */
/* loop: */
0xe4d03001, /* ldrb r3, [r0], #1 */
0xe0022003, /* and r2, r2, r3 */
0xe2511001, /* subs r1, r1, #1 */
0x1afffffb, /* bne loop */
/* end: */
0xeafffffe /* b end */
};
/* make sure we have a working area */

25
src/target/arm7_9_common.h
View File

@ -46,6 +46,8 @@ typedef struct arm7_9_common_s
uint32_t arm_bkpt; /**< ARM breakpoint instruction */
uint16_t thumb_bkpt; /**< Thumb breakpoint instruction */
bool force_hw_bkpts;
int sw_breakpoints_added; /**< Specifies which watchpoint software breakpoints are setup on */
int sw_breakpoint_count; /**< keep track of number of software breakpoints we have set */
int breakpoint_count; /**< Current number of set breakpoints */
@ -54,24 +56,23 @@ typedef struct arm7_9_common_s
int wp0_used; /**< Specifies if and how watchpoint unit 0 is used */
int wp1_used; /**< Specifies if and how watchpoint unit 1 is used */
int wp1_used_default; /**< Specifies if and how watchpoint unit 1 is used by default */
int force_hw_bkpts;
int dbgreq_adjust_pc; /**< Amount of PC adjustment caused by a DBGREQ */
int use_dbgrq; /**< Specifies if DBGRQ should be used to halt the target */
int need_bypass_before_restart; /**< Specifies if there should be a bypass before a JTAG restart */
bool use_dbgrq; /**< Specifies if DBGRQ should be used to halt the target */
bool need_bypass_before_restart; /**< Specifies if there should be a bypass before a JTAG restart */
bool has_single_step;
bool has_monitor_mode;
bool has_vector_catch; /**< Specifies if the target has a reset vector catch */
bool debug_entry_from_reset; /**< Specifies if debug entry was from a reset */
bool fast_memory_access;
bool dcc_downloads;
etm_context_t *etm_ctx;
int has_single_step;
int has_monitor_mode;
int has_vector_catch; /**< Specifies if the target has a reset vector catch */
int debug_entry_from_reset; /**< Specifies if debug entry was from a reset */
struct working_area_s *dcc_working_area;
int fast_memory_access;
int dcc_downloads;
int (*examine_debug_reason)(target_t *target); /**< Function for determining why debug state was entered */
void (*change_to_arm)(target_t *target, uint32_t *r0, uint32_t *pc); /**< Function for changing from Thumb to ARM mode */

8
src/target/armv7m.c
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@ -573,7 +573,7 @@ int armv7m_checksum_memory(struct target_s *target, uint32_t address, uint32_t c
reg_param_t reg_params[2];
int retval;
uint16_t cortex_m3_crc_code[] = {
static const uint16_t cortex_m3_crc_code[] = {
0x4602, /* mov r2, r0 */
0xF04F, 0x30FF, /* mov r0, #0xffffffff */
0x460B, /* mov r3, r1 */
@ -655,11 +655,11 @@ int armv7m_blank_check_memory(struct target_s *target, uint32_t address, uint32_
int retval;
uint32_t i;
uint16_t erase_check_code[] =
static const uint16_t erase_check_code[] =
{
/* loop: */
0xF810, 0x3B01, /* ldrb r3, [r0], #1 */
0xEA02, 0x0203, /* and r2, r2, r3 */
0xF810, 0x3B01, /* ldrb r3, [r0], #1 */
0xEA02, 0x0203, /* and r2, r2, r3 */
0x3901, /* subs r1, r1, #1 */
0xD1F9, /* bne loop */
/* end: */