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-rw-r--r--src/target/arm720t.c1
-rw-r--r--src/target/arm7_9_common.c63
-rw-r--r--src/target/arm7_9_common.h1
-rw-r--r--src/target/arm7tdmi.c1
-rw-r--r--src/target/arm920t.c1
-rw-r--r--src/target/arm926ejs.c1
-rw-r--r--src/target/arm966e.c1
-rw-r--r--src/target/arm9tdmi.c1
-rw-r--r--src/target/armv7m.c60
-rw-r--r--src/target/armv7m.h1
-rw-r--r--src/target/cortex_m3.c1
-rw-r--r--src/target/feroceon.c1
-rw-r--r--src/target/target.c17
-rw-r--r--src/target/target.h2
-rw-r--r--src/target/xscale.c3
15 files changed, 154 insertions, 1 deletions
diff --git a/src/target/arm720t.c b/src/target/arm720t.c
index 9645db85..cc45c9e6 100644
--- a/src/target/arm720t.c
+++ b/src/target/arm720t.c
@@ -70,6 +70,7 @@ target_type_t arm720t_target =
.write_memory = arm720t_write_memory,
.bulk_write_memory = arm7_9_bulk_write_memory,
.checksum_memory = arm7_9_checksum_memory,
+ .blank_check_memory = arm7_9_blank_check_memory,
.run_algorithm = armv4_5_run_algorithm,
diff --git a/src/target/arm7_9_common.c b/src/target/arm7_9_common.c
index 517badfd..b4ab4ef9 100644
--- a/src/target/arm7_9_common.c
+++ b/src/target/arm7_9_common.c
@@ -2305,6 +2305,69 @@ int arm7_9_checksum_memory(struct target_s *target, u32 address, u32 count, u32*
return ERROR_OK;
}
+int arm7_9_blank_check_memory(struct target_s *target, u32 address, u32 count, u32* blank)
+{
+ working_area_t *erase_check_algorithm;
+ reg_param_t reg_params[3];
+ armv4_5_algorithm_t armv4_5_info;
+ int retval;
+ int i;
+
+ u32 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 */
+ };
+
+ /* make sure we have a working area */
+ if (target_alloc_working_area(target, sizeof(erase_check_code), &erase_check_algorithm) != ERROR_OK)
+ {
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+ }
+
+ /* convert flash writing code into a buffer in target endianness */
+ for (i = 0; i < (sizeof(erase_check_code)/sizeof(u32)); i++)
+ target_write_u32(target, erase_check_algorithm->address + i*sizeof(u32), erase_check_code[i]);
+
+ armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
+ armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
+ armv4_5_info.core_state = ARMV4_5_STATE_ARM;
+
+ init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT);
+ buf_set_u32(reg_params[0].value, 0, 32, address);
+
+ init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
+ buf_set_u32(reg_params[1].value, 0, 32, count);
+
+ init_reg_param(&reg_params[2], "r2", 32, PARAM_IN_OUT);
+ buf_set_u32(reg_params[2].value, 0, 32, 0xff);
+
+ if ((retval = target->type->run_algorithm(target, 0, NULL, 3, reg_params,
+ erase_check_algorithm->address, erase_check_algorithm->address + (sizeof(erase_check_code) - 4), 10000, &armv4_5_info)) != ERROR_OK)
+ {
+ destroy_reg_param(&reg_params[0]);
+ destroy_reg_param(&reg_params[1]);
+ destroy_reg_param(&reg_params[2]);
+ target_free_working_area(target, erase_check_algorithm);
+ return 0;
+ }
+
+ *blank = buf_get_u32(reg_params[2].value, 0, 32);
+
+ destroy_reg_param(&reg_params[0]);
+ destroy_reg_param(&reg_params[1]);
+ destroy_reg_param(&reg_params[2]);
+
+ target_free_working_area(target, erase_check_algorithm);
+
+ return ERROR_OK;
+}
+
int arm7_9_register_commands(struct command_context_s *cmd_ctx)
{
command_t *arm7_9_cmd;
diff --git a/src/target/arm7_9_common.h b/src/target/arm7_9_common.h
index 21992faf..d6052f85 100644
--- a/src/target/arm7_9_common.h
+++ b/src/target/arm7_9_common.h
@@ -123,6 +123,7 @@ int arm7_9_read_memory(struct target_s *target, u32 address, u32 size, u32 count
int arm7_9_write_memory(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer);
int arm7_9_bulk_write_memory(target_t *target, u32 address, u32 count, u8 *buffer);
int arm7_9_checksum_memory(struct target_s *target, u32 address, u32 count, u32* checksum);
+int arm7_9_blank_check_memory(struct target_s *target, u32 address, u32 count, u32* blank);
int arm7_9_run_algorithm(struct target_s *target, int num_mem_params, mem_param_t *mem_params, int num_reg_prams, reg_param_t *reg_param, u32 entry_point, void *arch_info);
diff --git a/src/target/arm7tdmi.c b/src/target/arm7tdmi.c
index 549f6a67..16d1b136 100644
--- a/src/target/arm7tdmi.c
+++ b/src/target/arm7tdmi.c
@@ -75,6 +75,7 @@ target_type_t arm7tdmi_target =
.write_memory = arm7_9_write_memory,
.bulk_write_memory = arm7_9_bulk_write_memory,
.checksum_memory = arm7_9_checksum_memory,
+ .blank_check_memory = arm7_9_blank_check_memory,
.run_algorithm = armv4_5_run_algorithm,
diff --git a/src/target/arm920t.c b/src/target/arm920t.c
index 9e9bf1a5..3a3c2f1f 100644
--- a/src/target/arm920t.c
+++ b/src/target/arm920t.c
@@ -79,6 +79,7 @@ target_type_t arm920t_target =
.write_memory = arm920t_write_memory,
.bulk_write_memory = arm7_9_bulk_write_memory,
.checksum_memory = arm7_9_checksum_memory,
+ .blank_check_memory = arm7_9_blank_check_memory,
.run_algorithm = armv4_5_run_algorithm,
diff --git a/src/target/arm926ejs.c b/src/target/arm926ejs.c
index f46760e5..ffa2b0d6 100644
--- a/src/target/arm926ejs.c
+++ b/src/target/arm926ejs.c
@@ -79,6 +79,7 @@ target_type_t arm926ejs_target =
.write_memory = arm926ejs_write_memory,
.bulk_write_memory = arm7_9_bulk_write_memory,
.checksum_memory = arm7_9_checksum_memory,
+ .blank_check_memory = arm7_9_blank_check_memory,
.run_algorithm = armv4_5_run_algorithm,
diff --git a/src/target/arm966e.c b/src/target/arm966e.c
index 3112e0fc..af699cfa 100644
--- a/src/target/arm966e.c
+++ b/src/target/arm966e.c
@@ -70,6 +70,7 @@ target_type_t arm966e_target =
.write_memory = arm7_9_write_memory,
.bulk_write_memory = arm7_9_bulk_write_memory,
.checksum_memory = arm7_9_checksum_memory,
+ .blank_check_memory = arm7_9_blank_check_memory,
.run_algorithm = armv4_5_run_algorithm,
diff --git a/src/target/arm9tdmi.c b/src/target/arm9tdmi.c
index 24f3b2eb..90fb45aa 100644
--- a/src/target/arm9tdmi.c
+++ b/src/target/arm9tdmi.c
@@ -73,6 +73,7 @@ target_type_t arm9tdmi_target =
.write_memory = arm7_9_write_memory,
.bulk_write_memory = arm7_9_bulk_write_memory,
.checksum_memory = arm7_9_checksum_memory,
+ .blank_check_memory = arm7_9_blank_check_memory,
.run_algorithm = armv4_5_run_algorithm,
diff --git a/src/target/armv7m.c b/src/target/armv7m.c
index 950c5cda..b862cf38 100644
--- a/src/target/armv7m.c
+++ b/src/target/armv7m.c
@@ -596,4 +596,64 @@ int armv7m_checksum_memory(struct target_s *target, u32 address, u32 count, u32*
return ERROR_OK;
}
+int armv7m_blank_check_memory(struct target_s *target, u32 address, u32 count, u32* blank)
+{
+ working_area_t *erase_check_algorithm;
+ reg_param_t reg_params[3];
+ armv7m_algorithm_t armv7m_info;
+ int retval;
+ int i;
+
+ u16 erase_check_code[] =
+ {
+ /* loop: */
+ 0xF810, 0x3B01, /* ldrb r3, [r0], #1 */
+ 0xEA02, 0x0203, /* and r2, r2, r3 */
+ 0x3901, /* subs r1, r1, #1 */
+ 0xD1F9, /* bne loop */
+ /* end: */
+ 0xE7FE, /* b end */
+ };
+
+ /* make sure we have a working area */
+ if (target_alloc_working_area(target, sizeof(erase_check_code), &erase_check_algorithm) != ERROR_OK)
+ {
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+ }
+
+ /* convert flash writing code into a buffer in target endianness */
+ for (i = 0; i < (sizeof(erase_check_code)/sizeof(u16)); i++)
+ target_write_u16(target, erase_check_algorithm->address + i*sizeof(u16), erase_check_code[i]);
+
+ armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
+ armv7m_info.core_mode = ARMV7M_MODE_ANY;
+
+ init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT);
+ buf_set_u32(reg_params[0].value, 0, 32, address);
+
+ init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
+ buf_set_u32(reg_params[1].value, 0, 32, count);
+
+ init_reg_param(&reg_params[2], "r2", 32, PARAM_IN_OUT);
+ buf_set_u32(reg_params[2].value, 0, 32, 0xff);
+ if ((retval = target->type->run_algorithm(target, 0, NULL, 3, reg_params,
+ erase_check_algorithm->address, erase_check_algorithm->address + (sizeof(erase_check_code)-2), 10000, &armv7m_info)) != ERROR_OK)
+ {
+ destroy_reg_param(&reg_params[0]);
+ destroy_reg_param(&reg_params[1]);
+ destroy_reg_param(&reg_params[2]);
+ target_free_working_area(target, erase_check_algorithm);
+ return 0;
+ }
+
+ *blank = buf_get_u32(reg_params[2].value, 0, 32);
+
+ destroy_reg_param(&reg_params[0]);
+ destroy_reg_param(&reg_params[1]);
+ destroy_reg_param(&reg_params[2]);
+
+ target_free_working_area(target, erase_check_algorithm);
+
+ return ERROR_OK;
+}
diff --git a/src/target/armv7m.h b/src/target/armv7m.h
index ebbf437f..d7d24adb 100644
--- a/src/target/armv7m.h
+++ b/src/target/armv7m.h
@@ -129,6 +129,7 @@ extern int armv7m_invalidate_core_regs(target_t *target);
extern int armv7m_restore_context(target_t *target);
extern int armv7m_checksum_memory(struct target_s *target, u32 address, u32 count, u32* checksum);
+extern int armv7m_blank_check_memory(struct target_s *target, u32 address, u32 count, u32* blank);
/* Thumb mode instructions
*/
diff --git a/src/target/cortex_m3.c b/src/target/cortex_m3.c
index 58b620b5..845cca5f 100644
--- a/src/target/cortex_m3.c
+++ b/src/target/cortex_m3.c
@@ -81,6 +81,7 @@ target_type_t cortexm3_target =
.write_memory = cortex_m3_write_memory,
.bulk_write_memory = cortex_m3_bulk_write_memory,
.checksum_memory = armv7m_checksum_memory,
+ .blank_check_memory = armv7m_blank_check_memory,
.run_algorithm = armv7m_run_algorithm,
diff --git a/src/target/feroceon.c b/src/target/feroceon.c
index dc216292..a912dbd3 100644
--- a/src/target/feroceon.c
+++ b/src/target/feroceon.c
@@ -83,6 +83,7 @@ target_type_t feroceon_target =
.write_memory = arm926ejs_write_memory,
.bulk_write_memory = feroceon_bulk_write_memory,
.checksum_memory = arm7_9_checksum_memory,
+ .blank_check_memory = arm7_9_blank_check_memory,
.run_algorithm = armv4_5_run_algorithm,
diff --git a/src/target/target.c b/src/target/target.c
index 8c479189..0a44e7b3 100644
--- a/src/target/target.c
+++ b/src/target/target.c
@@ -1136,6 +1136,23 @@ int target_checksum_memory(struct target_s *target, u32 address, u32 size, u32*
return retval;
}
+int target_blank_check_memory(struct target_s *target, u32 address, u32 size, u32* blank)
+{
+ int retval;
+ if (!target->type->examined)
+ {
+ LOG_ERROR("Target not examined yet");
+ return ERROR_FAIL;
+ }
+
+ if (target->type->blank_check_memory == 0)
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+
+ retval = target->type->blank_check_memory(target, address, size, blank);
+
+ return retval;
+}
+
int target_read_u32(struct target_s *target, u32 address, u32 *value)
{
u8 value_buf[4];
diff --git a/src/target/target.h b/src/target/target.h
index dd70170d..17ac94a5 100644
--- a/src/target/target.h
+++ b/src/target/target.h
@@ -159,6 +159,7 @@ typedef struct target_type_s
int (*bulk_write_memory)(struct target_s *target, u32 address, u32 count, u8 *buffer);
int (*checksum_memory)(struct target_s *target, u32 address, u32 count, u32* checksum);
+ int (*blank_check_memory)(struct target_s *target, u32 address, u32 count, u32* blank);
/* target break-/watchpoint control
* rw: 0 = write, 1 = read, 2 = access
@@ -283,6 +284,7 @@ extern target_t* get_target_by_num(int num);
extern int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer);
extern int target_read_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer);
extern int target_checksum_memory(struct target_s *target, u32 address, u32 size, u32* crc);
+extern int target_blank_check_memory(struct target_s *target, u32 address, u32 size, u32* blank);
/* DANGER!!!!!
*
diff --git a/src/target/xscale.c b/src/target/xscale.c
index 48233243..a83ab70d 100644
--- a/src/target/xscale.c
+++ b/src/target/xscale.c
@@ -111,7 +111,8 @@ target_type_t xscale_target =
.write_memory = xscale_write_memory,
.bulk_write_memory = xscale_bulk_write_memory,
.checksum_memory = xscale_checksum_memory,
-
+ .blank_check_memory = NULL,
+
.run_algorithm = armv4_5_run_algorithm,
.add_breakpoint = xscale_add_breakpoint,
generated by cgit v1.2.3 (git 2.46.0) at 2024-12-23 16:38:25 +0000