This patch fixes the broken flash programming w/workarea enabled.
Please test & report.
These bugs explain the intermittent SEGFAULT's reported +
that flash programming worked some of the time.
--
Øyvind Harboe
Embedded software and hardware consulting services
http://www.zylin.com
### Eclipse Workspace Patch 1.0
#P openocd
Index: src/flash/aduc702x.c
===================================================================
--- src/flash/aduc702x.c (revision 2490)
+++ src/flash/aduc702x.c (working copy)
@@ -193,6 +193,11 @@
return ERROR_FLASH_OPERATION_FAILED;
}
+/* If this fn returns ERROR_TARGET_RESOURCE_NOT_AVAILABLE, then the caller can
fall
+ * back to another mechanism that does not require onboard RAM
+ *
+ * Caller should not check for other return values specifically
+ */
static int aduc702x_write_block(struct flash_bank_s *bank, uint8_t *buffer,
uint32_t offset, uint32_t count)
{
aduc702x_flash_bank_t *aduc702x_info = bank->driver_priv;
@@ -204,6 +209,12 @@
armv4_5_algorithm_t armv4_5_info;
int retval = ERROR_OK;
+ if (((count%2)!=0)||((offset%2)!=0))
+ {
+ LOG_ERROR("write block must be multiple of two bytes in offset
& length");
+ return ERROR_FAIL;
+ }
+
/* parameters:
r0 - address of source data (absolute)
@@ -249,8 +260,12 @@
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
};
- target_write_buffer(target, aduc702x_info->write_algorithm->address,
+ retval=target_write_buffer(target,
aduc702x_info->write_algorithm->address,
sizeof(aduc702x_flash_write_code),
(uint8_t*)aduc702x_flash_write_code);
+ if (retval!=ERROR_OK)
+ {
+ return retval;
+ }
/* memory buffer */
while (target_alloc_working_area(target, buffer_size, &source) !=
ERROR_OK)
@@ -279,12 +294,16 @@
while (count > 0)
{
- uint32_t thisrun_count = (count > (buffer_size / 2)) ?
(buffer_size / 2) : count;
+ uint32_t thisrun_count = (count > buffer_size) ? buffer_size :
count;
- target_write_buffer(target, source->address, thisrun_count * 2,
buffer);
+ retval=target_write_buffer(target, source->address,
thisrun_count, buffer);
+ if (retval!=ERROR_OK)
+ {
+ break;
+ }
buf_set_u32(reg_params[0].value, 0, 32, source->address);
- buf_set_u32(reg_params[1].value, 0, 32, thisrun_count);
+ buf_set_u32(reg_params[1].value, 0, 32, thisrun_count/2);
buf_set_u32(reg_params[2].value, 0, 32, address);
buf_set_u32(reg_params[4].value, 0, 32, 0xFFFFF800);
@@ -294,17 +313,19 @@
10000, &armv4_5_info)) != ERROR_OK)
{
LOG_ERROR("error executing aduc702x flash write
algorithm");
- retval = ERROR_FLASH_OPERATION_FAILED;
break;
}
- if ((buf_get_u32(reg_params[3].value, 0, 32) & 1) != 1) {
- retval = ERROR_FLASH_OPERATION_FAILED;
+ if ((buf_get_u32(reg_params[3].value, 0, 32) & 1) != 1)
+ {
+ /* FIX!!!! what does this mean??? replace w/sensible
error message */
+ LOG_ERROR("aduc702x detected error writing flash");
+ retval = ERROR_FAIL;
break;
}
- buffer += thisrun_count * 2;
- address += thisrun_count * 2;
+ buffer += thisrun_count;
+ address += thisrun_count;
count -= thisrun_count;
}
@@ -382,14 +403,9 @@
return ERROR_FLASH_OPERATION_FAILED;
}
}
- else if (retval == ERROR_FLASH_OPERATION_FAILED)
- {
- LOG_ERROR("flash block writing failed");
- return ERROR_FLASH_OPERATION_FAILED;
- }
}
- return ERROR_OK;
+ return retval;
}
static int aduc702x_probe(struct flash_bank_s *bank)
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