}
ext_csd_struct = ext_csd[EXT_CSD_REV];
- if (ext_csd_struct > 2) {
+ if (ext_csd_struct > 3) {
printk(KERN_ERR "%s: unrecognised EXT_CSD structure "
"version %d\n", mmc_hostname(card->host),
ext_csd_struct);
* Activate wide bus (if supported).
*/
if ((card->csd.mmca_vsn >= CSD_SPEC_VER_4) &&
- (host->caps & MMC_CAP_4_BIT_DATA)) {
+ (host->caps & (MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA))) {
+ unsigned ext_csd_bit, bus_width;
+
+ if (host->caps & MMC_CAP_8_BIT_DATA) {
+ ext_csd_bit = EXT_CSD_BUS_WIDTH_8;
+ bus_width = MMC_BUS_WIDTH_8;
+ } else {
+ ext_csd_bit = EXT_CSD_BUS_WIDTH_4;
+ bus_width = MMC_BUS_WIDTH_4;
+ }
+
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
- EXT_CSD_BUS_WIDTH, EXT_CSD_BUS_WIDTH_4);
+ EXT_CSD_BUS_WIDTH, ext_csd_bit);
+
if (err)
goto free_card;
- mmc_set_bus_width(card->host, MMC_BUS_WIDTH_4);
+ mmc_set_bus_width(card->host, bus_width);
}
if (!oldcard)
return err;
}
-