+static struct dcd_v2_cmd *gd_last_cmd;
+
+static void set_dcd_param_v2(struct imx_header *imxhdr, uint32_t dcd_len,
+ int32_t cmd)
+{
+ dcd_v2_t *dcd_v2 = &imxhdr->header.hdr_v2.dcd_table;
+ struct dcd_v2_cmd *d = gd_last_cmd;
+ struct dcd_v2_cmd *d2;
+ int len;
+
+ if (!d)
+ d = &dcd_v2->dcd_cmd;
+ d2 = d;
+ len = be16_to_cpu(d->write_dcd_command.length);
+ if (len > 4)
+ d2 = (struct dcd_v2_cmd *)(((char *)d) + len);
+
+ switch (cmd) {
+ case CMD_WRITE_DATA:
+ if ((d->write_dcd_command.tag == DCD_WRITE_DATA_COMMAND_TAG) &&
+ (d->write_dcd_command.param == DCD_WRITE_DATA_PARAM))
+ break;
+ d = d2;
+ d->write_dcd_command.tag = DCD_WRITE_DATA_COMMAND_TAG;
+ d->write_dcd_command.length = cpu_to_be16(4);
+ d->write_dcd_command.param = DCD_WRITE_DATA_PARAM;
+ break;
+ case CMD_WRITE_CLR_BIT:
+ if ((d->write_dcd_command.tag == DCD_WRITE_DATA_COMMAND_TAG) &&
+ (d->write_dcd_command.param == DCD_WRITE_CLR_BIT_PARAM))
+ break;
+ d = d2;
+ d->write_dcd_command.tag = DCD_WRITE_DATA_COMMAND_TAG;
+ d->write_dcd_command.length = cpu_to_be16(4);
+ d->write_dcd_command.param = DCD_WRITE_CLR_BIT_PARAM;
+ break;
+ /*
+ * Check data command only supports one entry,
+ */
+ case CMD_CHECK_BITS_SET:
+ d = d2;
+ d->write_dcd_command.tag = DCD_CHECK_DATA_COMMAND_TAG;
+ d->write_dcd_command.length = cpu_to_be16(4);
+ d->write_dcd_command.param = DCD_CHECK_BITS_SET_PARAM;
+ break;
+ case CMD_CHECK_BITS_CLR:
+ d = d2;
+ d->write_dcd_command.tag = DCD_CHECK_DATA_COMMAND_TAG;
+ d->write_dcd_command.length = cpu_to_be16(4);
+ d->write_dcd_command.param = DCD_CHECK_BITS_SET_PARAM;
+ break;
+ default:
+ break;
+ }
+ gd_last_cmd = d;
+}
+