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| author | Oleksandr Suvorov <oleksandr.suvorov@toradex.com> | 2020-02-19 13:11:24 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-12 13:00:30 +0100 |
| commit | 61f64d9de25abf5a32ec90c141f5b21674285895 (patch) | |
| tree | 3cfec8c79fe2b7d73584765a2b3393f761c7693f /arch | |
| parent | 1439f05ce981756cef7a7f42e15288158865d561 (diff) | |
| download | linux-stable-61f64d9de25abf5a32ec90c141f5b21674285895.tar.gz linux-stable-61f64d9de25abf5a32ec90c141f5b21674285895.tar.bz2 linux-stable-61f64d9de25abf5a32ec90c141f5b21674285895.zip | |
ARM: dts: imx7-colibri: Fix frequency for sd/mmc
commit 2773fe1d31c42ffae2a9cb9a6055d99dd86e2fee upstream.
SD/MMC on Colibri iMX7S/D modules successfully support
200Mhz frequency in HS200 mode.
Removing the unnecessary max-frequency limit significantly
increases the performance:
== before fix ====
root@colibri-imx7-emmc:~# hdparm -t /dev/mmcblk0
/dev/mmcblk0:
Timing buffered disk reads: 252 MB in 3.02 seconds = 83.54 MB/sec
==================
=== after fix ====
root@colibri-imx7-emmc:~# hdparm -t /dev/mmcblk0
/dev/mmcblk0:
Timing buffered disk reads: 408 MB in 3.00 seconds = 135.94 MB/sec
==================
Fixes: f928a4a377e4 ("ARM: dts: imx7: add Toradex Colibri iMX7D 1GB (eMMC) support")
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/boot/dts/imx7-colibri.dtsi | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/imx7-colibri.dtsi b/arch/arm/boot/dts/imx7-colibri.dtsi index 917eb0b58b13..eed78f12e79e 100644 --- a/arch/arm/boot/dts/imx7-colibri.dtsi +++ b/arch/arm/boot/dts/imx7-colibri.dtsi @@ -337,7 +337,6 @@ assigned-clock-rates = <400000000>; bus-width = <8>; fsl,tuning-step = <2>; - max-frequency = <100000000>; vmmc-supply = <®_module_3v3>; vqmmc-supply = <®_DCDC3>; non-removable; |