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arm64: zynqmp: Disable Tri-state for SDIO

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Since the zynqmp pinctrl driver now includes support for the
tri-state registers, ensure that the pins needing output-enable
are correctly configured for SOMs.

Currently, there is an issue with the detection of the MMC for
the SOM kv260, resulting in the following error:
ZynqMP> mmc dev 1
Card did not respond to voltage select! : -110

To address this problem, configure the SDIO pins for output-enable
to enable MMC detection.

Signed-off-by: Tejas Bhumkar <tejas.arvind.bhumkar@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/540f83f7d88b80441c9fa3d771dd7b000b0710a4.1716802450.git.michal.simek@amd.com
This commit is contained in:
Tejas Bhumkar 2024-05-27 11:34:13 +02:00 committed by Michal Simek
parent a520fcceb9
commit a082e297fa
2 changed files with 2 additions and 0 deletions
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1
arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revA.dtso
View File

@ -321,6 +321,7 @@ conf {
slew-rate = <SLEW_RATE_SLOW>;
power-source = <IO_STANDARD_LVCMOS18>;
bias-disable;
output-enable;
};
conf-cd {

1
arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dtso
View File

@ -305,6 +305,7 @@ conf {
slew-rate = <SLEW_RATE_SLOW>;
power-source = <IO_STANDARD_LVCMOS18>;
bias-disable;
output-enable;
};
conf-cd {