Hi,
> +&sdmmc {
> + bus-width = <4>;
> + cap-mmc-highspeed;
> + cap-sd-highspeed;
> + disable-wp;
> + no-sdio;
With 'no-sdio' property:
[ 129.608986] mmc_host mmc1: Bus speed (slot 0) = 400000Hz (slot req 400000Hz, actual 400000HZ div = 0)
[ 130.711168] mmc1: Card stuck being busy! __mmc_poll_for_busy
[ 130.725536] mmc_host mmc1: Bus speed (slot 0) = 300000Hz (slot req 300000Hz, actual 300000HZ div = 0)
[ 131.751240] mmc1: Card stuck being busy! __mmc_poll_for_busy
[ 131.765608] mmc_host mmc1: Bus speed (slot 0) = 200000Hz (slot req 200000Hz, actual 200000HZ div = 0)
[ 132.825083] mmc1: Card stuck being busy! __mmc_poll_for_busy
[ 132.839413] mmc_host mmc1: Bus speed (slot 0) = 187500Hz (slot req 187500Hz, actual 187500HZ div = 0)
[ 133.960141] mmc1: Card stuck being busy! __mmc_poll_for_busy
Without 'no-sdio' property:
[ 105.224019] mmc1: error -22 whilst initialising SDIO card
[ 106.290838] mmc1: Card stuck being busy! __mmc_poll_for_busy
[ 106.801931] dwmmc_rockchip ffc30000.mmc: Busy; trying anyway
[ 107.385835] mmc_host mmc1: Timeou sending command (cmd 0x202000 arg 0x0 status 0x80202000)
[ 107.400425] mmc_host mmc1: Bus speed (slot 0) = 300000Hz (slot req 300000Hz, actual 300000HZ div = 0)
[ 107.431561] mmc_host mmc1: Bus speed (slot 0) = 49800000Hz (slot req 50000000Hz, actual 49800000HZ div = 0)
[ 107.433107] mmc1: new high speed SDIO card at address 0001
# cat /sys/kernel/debug/mmc1/ios
clock: 50000000 Hz
vdd: 21 (3.3 ~ 3.4 V)
bus mode: 2 (push-pull)
chip select: 0 (don't care)
power mode: 2 (on)
bus width: 2 (4 bits)
timing spec: 2 (sd high-speed)
signal voltage: 0 (3.30 V)
driver type: 0 (driver type B)
Thanks,
Chukun
--
2.25.1
