(initramfs) dmesg | grep mmc
[    0.198809] platform ff770000.syscon:phy@f780: Fixing up cyclic dependency with fe330000.mmc
[    6.441125] mmc1: CQHCI version 5.10
[    6.468917] mmc1: SDHCI controller on fe330000.mmc [fe330000.mmc] using ADMA
[    6.757589] dwmmc_rockchip fe320000.mmc: IDMAC supports 32-bit address mode.
[    6.757649] dwmmc_rockchip fe320000.mmc: Using internal DMA controller.
[    6.757666] dwmmc_rockchip fe320000.mmc: Version ID is 270a
[    6.757751] dwmmc_rockchip fe320000.mmc: DW MMC controller at irq 29,32 bit host data width,256 deep fifo
[    6.759147] dwmmc_rockchip fe320000.mmc: Got CD GPIO
[    6.772161] mmc_host mmc0: Bus speed (slot 0) = 400000Hz (slot req 400000Hz, actual 400000HZ div = 0)
[    6.873911] mmc_host mmc0: Bus speed (slot 0) = 148500000Hz (slot req 150000000Hz, actual 148500000HZ div = 0)
[    6.880413] dwmmc_rockchip fe320000.mmc: All phases bad!
[    6.880434] mmc0: tuning execution failed: -5
[    6.880901] mmc0: error -5 whilst initialising SD card
[    6.896501] mmc_host mmc0: Bus speed (slot 0) = 300000Hz (slot req 300000Hz, actual 300000HZ div = 0)
[    7.003886] mmc_host mmc0: Bus speed (slot 0) = 148500000Hz (slot req 150000000Hz, actual 148500000HZ div = 0)
[    7.620742] mmc_host mmc0: Timeout sending command (cmd 0x200000 arg 0x0 status 0x80200000)
[    8.121726] dwmmc_rockchip fe320000.mmc: Busy; trying anyway
[    8.252342] dwmmc_rockchip fe320000.mmc: All phases bad!
[    8.252362] mmc0: tuning execution failed: -5
[    8.269013] mmc_host mmc0: Bus speed (slot 0) = 300000Hz (slot req 300000Hz, actual 300000HZ div = 0)
[    8.535031] mmc_host mmc0: Bus speed (slot 0) = 148500000Hz (slot req 150000000Hz, actual 148500000HZ div = 0)
[    8.542341] dwmmc_rockchip fe320000.mmc: All phases bad!
[    8.542363] mmc0: tuning execution failed: -5
[    8.542772] mmc0: error -5 whilst initialising SD card
[    8.558327] mmc_host mmc0: Bus speed (slot 0) = 200000Hz (slot req 200000Hz, actual 200000HZ div = 0)
[    8.682657] mmc_host mmc0: Bus speed (slot 0) = 148500000Hz (slot req 150000000Hz, actual 148500000HZ div = 0)
[    8.802864] dwmmc_rockchip fe320000.mmc: All phases bad!
[    8.802885] mmc0: tuning execution failed: -5
[    8.819645] mmc_host mmc0: Bus speed (slot 0) = 200000Hz (slot req 200000Hz, actual 200000HZ div = 0)
[    9.083678] mmc_host mmc0: Bus speed (slot 0) = 148500000Hz (slot req 150000000Hz, actual 148500000HZ div = 0)
[    9.091271] dwmmc_rockchip fe320000.mmc: All phases bad!
[    9.091292] mmc0: tuning execution failed: -5
[    9.091705] mmc0: error -5 whilst initialising SD card
[    9.105147] mmc_host mmc0: Bus speed (slot 0) = 100000Hz (slot req 100000Hz, actual 100000HZ div = 0)
[    9.242819] mmc_host mmc0: Bus speed (slot 0) = 148500000Hz (slot req 150000000Hz, actual 148500000HZ div = 0)
[    9.249769] dwmmc_rockchip fe320000.mmc: All phases bad!
[    9.249790] mmc0: tuning execution failed: -5
[    9.266270] mmc_host mmc0: Bus speed (slot 0) = 100000Hz (slot req 100000Hz, actual 100000HZ div = 0)
[    9.549933] mmc_host mmc0: Bus speed (slot 0) = 148500000Hz (slot req 150000000Hz, actual 148500000HZ div = 0)
[    9.556449] dwmmc_rockchip fe320000.mmc: All phases bad!
[    9.556470] mmc0: tuning execution failed: -5
[    9.556935] mmc0: error -5 whilst initialising SD card