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| author | Tejas Bhumkar <tejas.arvind.bhumkar@amd.com> | 2024-05-27 11:34:13 +0200 |
|---|---|---|
| committer | Michal Simek <michal.simek@amd.com> | 2024-06-17 08:36:22 +0200 |
| commit | a082e297fa18d96a41ccc308eb31675ffd3a47f8 (patch) | |
| tree | 156e28063416a6fca2637f540f3a79e02f48df61 | |
| parent | a520fcceb9609823bf50818fd838cf22ee97341c (diff) | |
| download | lwn-a082e297fa18d96a41ccc308eb31675ffd3a47f8.tar.gz lwn-a082e297fa18d96a41ccc308eb31675ffd3a47f8.zip | |
arm64: zynqmp: Disable Tri-state for SDIO
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
| -rw-r--r-- | arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revA.dtso | 1 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dtso | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revA.dtso b/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revA.dtso index d7535a77b45e..a09909a6f885 100644 --- a/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revA.dtso +++ b/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revA.dtso @@ -321,6 +321,7 @@ slew-rate = <SLEW_RATE_SLOW>; power-source = <IO_STANDARD_LVCMOS18>; bias-disable; + output-enable; }; conf-cd { diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dtso b/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dtso index a7b8fffad499..b3b8875f8f7a 100644 --- a/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dtso +++ b/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dtso @@ -305,6 +305,7 @@ slew-rate = <SLEW_RATE_SLOW>; power-source = <IO_STANDARD_LVCMOS18>; bias-disable; + output-enable; }; conf-cd { |