Files
nuttx/drivers
Windrow14 49cbcfb5e6 drivers/mmcsd/mmcsd.h|mmcsd_sdio.c|mmcsd_sdio.h: support MMC high speed SDR mode
According to the eMMC specification, in Backwards Compatibility
with legacy MMC card mode, the frequency of the SD clock must be
0-26 MHZ; in high speed SDR mode, it must be 0-52MHZ. So we should
switch to high speed SDR mode if the clock frequency is higher than
26MHZ.

Signed-off-by: Yinzhe Wu <Yinzhe.Wu@sony.com>
Reviewed-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Jacky Cao <Jacky.Cao@sony.com>
Tested-by: Yinzhe Wu <Yinzhe.Wu@sony.com>
2024-08-19 19:52:39 +08:00
..
2024-08-07 12:13:38 -03:00
2024-06-28 09:30:42 +02:00
2024-07-03 17:31:23 +08:00
2024-08-07 12:13:38 -03:00
2024-08-18 10:15:00 +08:00
2024-07-27 22:57:32 +08:00