| Message ID | 20210319051950.17549-3-a-govindraju@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | AM64: Add support for GPIO | expand |
On 19/03/21 10:49 am, Aswath Govindraju wrote: > 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> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com> Thanks and regards, Lokesh
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>;
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> --- arch/arm64/boot/dts/ti/k3-am642-evm.dts | 5 +++++ arch/arm64/boot/dts/ti/k3-am642-sk.dts | 5 +++++ 2 files changed, 10 insertions(+)