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| author | Aswath Govindraju <a-govindraju@ti.com> | 2021-03-19 10:49:50 +0530 |
|---|---|---|
| committer | Nishanth Menon <nm@ti.com> | 2021-03-22 10:41:24 -0500 |
| commit | d5a4d5413dd833b3ceba395ba77f00470a3ffbe8 (patch) | |
| tree | 1966d385abb8261044d2f98ed39e6742e03d53cc | |
| parent | 01a91e01b8fddaeb37b953a5e39eafbdf2d4b061 (diff) | |
| download | linux-d5a4d5413dd833b3ceba395ba77f00470a3ffbe8.tar.gz linux-d5a4d5413dd833b3ceba395ba77f00470a3ffbe8.zip | |
arm64: dts: ti: k3-am642: reserve gpio in mcu domain for firmware usage
The gpio0 subsystem present in MCU domain might be used by firmware and is
not pinned out in evm/sk. Therefore, reserve it for MCU firmware.
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210319051950.17549-3-a-govindraju@ti.com
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am642-evm.dts | 5 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am642-sk.dts | 5 |
2 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts index 9522f104d979..385d99a3bc4f 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts @@ -310,6 +310,11 @@ }; }; +/* mcu_gpio0 is reserved for mcu firmware usage */ +&mcu_gpio0 { + status = "reserved"; +}; + &mcu_i2c0 { status = "disabled"; }; diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts index 3a5bee4b0b0c..282fb4185db9 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts @@ -220,6 +220,11 @@ status = "disabled"; }; +/* mcu_gpio0 is reserved for mcu firmware usage */ +&mcu_gpio0 { + status = "reserved"; +}; + &sdhci1 { /* SD/MMC */ vmmc-supply = <&vdd_mmc1>; |