mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2025-02-19 21:26:53 +07:00
2a0fe914a3
SDIO_CCCR_IF[1:0] in SDIO card is used for card data bus width
setting as below:
00b: 1-bit bus
01b: Reserved
10b: 4-bit bus
11b: 8-bit bus (only for embedded SDIO)
And sdio_enable_wide is for setting data bus width as 4-bit.
But currently, it first reads the register, second OR' 1b with
SDIO_CCCR_IF[1], and then writes it back.
As we can see, this is based on such assumption that the
SDIO_CCCR_IF[0] is always 0. Apparently, this is not right.
Signed-off-by: Yong Ding <yongd@marvell.com>
Acked-by: Philip Rakity <prakity@marvell.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
||
|---|---|---|
| .. | ||
| boot.h | ||
| card.h | ||
| cd-gpio.h | ||
| core.h | ||
| dw_mmc.h | ||
| host.h | ||
| ioctl.h | ||
| Kbuild | ||
| mmc.h | ||
| mxs-mmc.h | ||
| pm.h | ||
| sd.h | ||
| sdhci-pci-data.h | ||
| sdhci-spear.h | ||
| sdhci.h | ||
| sdio_func.h | ||
| sdio_ids.h | ||
| sdio.h | ||
| sh_mmcif.h | ||
| sh_mobile_sdhi.h | ||
| tmio.h | ||