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Merge pull request #3441 from shawn1221/mmc-upstream-20200312

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component sdio fix
This commit is contained in:
Bernard Xiong 2020-03-13 16:48:59 +08:00 committed by GitHub
commit 23d02c68c0
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 10 additions and 3 deletions
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2
components/drivers/sdio/block_dev.c
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@ -460,8 +460,6 @@ rt_int32_t rt_mmcsd_blk_probe(struct rt_mmcsd_card *card)
rt_device_register(&blk_dev->dev, "sd0",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_REMOVABLE | RT_DEVICE_FLAG_STANDALONE);
rt_list_insert_after(&blk_devices, &blk_dev->list);
break;
}
else
{

11
components/drivers/sdio/mmc.c
View File

@ -318,8 +318,17 @@ static int mmc_select_bus_width(struct rt_mmcsd_card *card, rt_uint8_t *ext_csd)
* the device to work in 8bit transfer mode. If the
* mmc switch command returns error then switch to
* 4bit transfer mode. On success set the corresponding
* bus width on the host.
* bus width on the host. Meanwhile, mmc core would
* bail out early if corresponding bus capable wasn't
* set by drivers.
*/
if ((!(host->flags & MMCSD_BUSWIDTH_8) &&
ext_csd_bits[idx] == EXT_CSD_BUS_WIDTH_8) ||
(!(host->flags & MMCSD_BUSWIDTH_4) &&
(ext_csd_bits[idx] == EXT_CSD_BUS_WIDTH_4 ||
ext_csd_bits[idx] == EXT_CSD_BUS_WIDTH_8)))
continue;
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_BUS_WIDTH,
ext_csd_bits[idx]);