diff options
| author | Haibo Chen <haibo.chen@nxp.com> | 2023-10-17 09:50:48 +0300 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2023-11-27 05:25:34 +0300 |
| commit | 47a34668179f6df2832e817db2083f0f02d65256 (patch) | |
| tree | 617f2a4044066378f7b03407fe6c3479ee6b79ec | |
| parent | 6783971e88f68470dbce46da856382fb12bf20f1 (diff) | |
| download | linux-47a34668179f6df2832e817db2083f0f02d65256.tar.xz | |
arm64: dts: imx93-11x11-evk: add 12 ms delay to make sure the VDD_SD power off
To support SD3.0 mode, according to the SD spec, a clean power off
for the VDD_SD is keep the VDD_SD lower than 0.5V for at least 1ms.
On imx93 board, gate off the VDD_SD, it will cost about 10ms to see
the voltage change from 3.3v to 0.5v. So at least need to dealy 11ms
to make sure a clean power off and power on. Here add 12ms dealy.
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts index 021caf471bf6..9921ea13ab48 100644 --- a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts @@ -76,6 +76,7 @@ regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; gpio = <&gpio3 7 GPIO_ACTIVE_HIGH>; + off-on-delay-us = <12000>; enable-active-high; }; }; |