mmc->tran_speed = freq * mult;
+ mmc->dsr_imp = ((cmd.response[1] >> 12) & 0x1);
mmc->read_bl_len = 1 << ((cmd.response[1] >> 16) & 0xf);
if (IS_SD(mmc))
if (mmc->write_bl_len > MMC_MAX_BLOCK_LEN)
mmc->write_bl_len = MMC_MAX_BLOCK_LEN;
+ if ((mmc->dsr_imp) && (0xffffffff != mmc->dsr)) {
+ cmd.cmdidx = MMC_CMD_SET_DSR;
+ cmd.cmdarg = (mmc->dsr & 0xffff) << 16;
+ cmd.resp_type = MMC_RSP_NONE;
+ if (mmc_send_cmd(mmc, &cmd, NULL))
+ printf("MMC: SET_DSR failed\n");
+ }
+
/* Select the card, and put it into Transfer Mode */
if (!mmc_host_is_spi(mmc)) { /* cmd not supported in spi */
cmd.cmdidx = MMC_CMD_SELECT_CARD;
}
/*
- * Check whether GROUP_DEF is set, if yes, read out
- * group size from ext_csd directly, or calculate
- * the group size from the csd value.
+ * Host needs to enable ERASE_GRP_DEF bit if device is
+ * partitioned. This bit will be lost every time after a reset
+ * or power off. This will affect erase size.
*/
- if (ext_csd[EXT_CSD_ERASE_GROUP_DEF]) {
+ if ((ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & PART_SUPPORT) &&
+ (ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE] & PART_ENH_ATTRIB)) {
+ err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
+ EXT_CSD_ERASE_GROUP_DEF, 1);
+
+ if (err)
+ return err;
+
+ /* Read out group size from ext_csd */
mmc->erase_grp_size =
ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] *
MMC_MAX_BLOCK_LEN * 1024;
} else {
+ /* Calculate the group size from the csd value. */
int erase_gsz, erase_gmul;
erase_gsz = (mmc->csd[2] & 0x00007c00) >> 10;
erase_gmul = (mmc->csd[2] & 0x000003e0) >> 5;
int mmc_register(struct mmc *mmc)
{
+ /* Setup dsr related values */
+ mmc->dsr_imp = 0;
+ mmc->dsr = 0xffffffff;
/* Setup the universal parts of the block interface just once */
mmc->block_dev.if_type = IF_TYPE_MMC;
mmc->block_dev.dev = cur_dev_num++;
return err;
}
+int mmc_set_dsr(struct mmc *mmc, u16 val)
+{
+ mmc->dsr = val;
+ return 0;
+}
+
/*
* CPU and board-specific MMC initializations. Aliased function
* signals caller to move on