+ return 0;
+}
+
+int mmc_send_csd(struct mmc_card *card, u32 *csd)
+{
+ int ret, i;
+
+ if (!mmc_host_is_spi(card->host))
+ return mmc_send_cxd_native(card->host, card->rca << 16,
+ csd, MMC_SEND_CSD);
+
+ ret = mmc_send_cxd_data(card, card->host, MMC_SEND_CSD, csd, 16);
+ if (ret)
+ return ret;
+
+ for (i = 0;i < 4;i++)
+ csd[i] = be32_to_cpu(csd[i]);
+
+ return 0;
+}
+
+int mmc_send_cid(struct mmc_host *host, u32 *cid)
+{
+ int ret, i;
+
+ if (!mmc_host_is_spi(host)) {
+ if (!host->card)
+ return -EINVAL;
+ return mmc_send_cxd_native(host, host->card->rca << 16,
+ cid, MMC_SEND_CID);
+ }
+
+ ret = mmc_send_cxd_data(NULL, host, MMC_SEND_CID, cid, 16);
+ if (ret)
+ return ret;
+
+ for (i = 0;i < 4;i++)
+ cid[i] = be32_to_cpu(cid[i]);
+
+ return 0;
+}
+
+int mmc_send_ext_csd(struct mmc_card *card, u8 *ext_csd)
+{
+ return mmc_send_cxd_data(card, card->host, MMC_SEND_EXT_CSD,
+ ext_csd, 512);
+}
+
+int mmc_spi_read_ocr(struct mmc_host *host, int highcap, u32 *ocrp)
+{
+ struct mmc_command cmd;
+ int err;
+
+ memset(&cmd, 0, sizeof(struct mmc_command));
+
+ cmd.opcode = MMC_SPI_READ_OCR;
+ cmd.arg = highcap ? (1 << 30) : 0;
+ cmd.flags = MMC_RSP_SPI_R3;
+
+ err = mmc_wait_for_cmd(host, &cmd, 0);
+
+ *ocrp = cmd.resp[1];
+ return err;
+}
+
+int mmc_spi_set_crc(struct mmc_host *host, int use_crc)
+{
+ struct mmc_command cmd;
+ int err;
+
+ memset(&cmd, 0, sizeof(struct mmc_command));
+
+ cmd.opcode = MMC_SPI_CRC_ON_OFF;
+ cmd.flags = MMC_RSP_SPI_R1;
+ cmd.arg = use_crc;
+
+ err = mmc_wait_for_cmd(host, &cmd, 0);
+ if (!err)
+ host->use_spi_crc = use_crc;
+ return err;