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![]() Add mmc-ddr-1_8v property enabling eMMC DDR52 mode. root@apalis-t30:~# cat /sys/kernel/debug/mmc1/ios clock: 52000000 Hz actual clock: 52000000 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: 3 (8 bits) timing spec: 8 (mmc DDR52) signal voltage: 1 (1.80 V) driver type: 0 (driver type B) root@apalis-t30:~# hdparm -t /dev/mmcblk1 /dev/mmcblk1: Timing buffered disk reads: 232 MB in 3.01 seconds = 77.10 MB/sec Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Thierry Reding <treding@nvidia.com> |
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