embeddedice: fix error handling

error is now reported at failure site.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>

src/flash/nor/ocl.c

@@ -101,8 +101,6 @@ static int ocl_erase(struct flash_bank *bank, int first, int last)
 	/* wait for response, fixed timeout of 1 s */
 	if ((retval = embeddedice_handshake(ocl->jtag_info, EICE_COMM_CTRL_WBIT, 1000) != ERROR_OK))
 	{
-		if (retval == ERROR_TARGET_TIMEOUT)
-			LOG_ERROR("loader not responding");
 		return retval;
 	}
 
@@ -206,8 +204,6 @@ static int ocl_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offset,
 		/* wait for response, fixed timeout of 1 s */
 		if ((retval = embeddedice_handshake(ocl->jtag_info, EICE_COMM_CTRL_WBIT, 1000) != ERROR_OK))
 		{
-			if (retval == ERROR_TARGET_TIMEOUT)
-				LOG_ERROR("loader not responding");
 			free(dcc_buffer);
 			return retval;
 		}
@@ -252,8 +248,6 @@ static int ocl_probe(struct flash_bank *bank)
 	/* wait for response, fixed timeout of 1 s */
 	if ((retval = embeddedice_handshake(ocl->jtag_info, EICE_COMM_CTRL_WBIT, 1000) != ERROR_OK))
 	{
-		if (retval == ERROR_TARGET_TIMEOUT)
-			LOG_ERROR("loader not responding");
 		return retval;
 	}
 

src/target/embeddedice.c

@@ -588,7 +588,10 @@ int embeddedice_handshake(struct arm_jtag *jtag_info, int hsbit, uint32_t timeou
 	else if (hsbit == EICE_COMM_CTRL_RBIT)
 		hsact = 0;
 	else
+	{
+		LOG_ERROR("Invalid arguments");
 		return ERROR_INVALID_ARGUMENTS;
+	}
 
 	retval = arm_jtag_scann(jtag_info, 0x2, TAP_IDLE);
 	if (retval != ERROR_OK)
@@ -625,6 +628,7 @@ int embeddedice_handshake(struct arm_jtag *jtag_info, int hsbit, uint32_t timeou
 	} while ((uint32_t)((now.tv_sec - lap.tv_sec) * 1000
 			+ (now.tv_usec - lap.tv_usec) / 1000) <= timeout);
 
+	LOG_ERROR("embeddedice handshake timeout");
 	return ERROR_TARGET_TIMEOUT;
 }