From: Hari Nagalla <hnagalla@xxxxxx> AM64x device has 4 R5F cores in the main domain. TI MCU firmware uses main domain timers as tick timers in these firmwares. Hence keep them as reserved in the Linux device tree. Signed-off-by: Hari Nagalla <hnagalla@xxxxxx> Signed-off-by: Judith Mendez <jm@xxxxxx> --- Changes since v4: - Reserve timers for AM64 MCU FW, patch 10/10 --- arch/arm64/boot/dts/ti/k3-am642-evm.dts | 17 +++++++++++++++++ arch/arm64/boot/dts/ti/k3-am642-sk.dts | 17 +++++++++++++++++ 2 files changed, 34 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts index f8ec40523254b..68bd6b806f8f0 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts @@ -796,6 +796,23 @@ &mcu_m4fss { status = "okay"; }; +/* main_timers 8-11 are used by TI MCU FW */ +&main_timer8 { + status = "reserved"; +}; + +&main_timer9 { + status = "reserved"; +}; + +&main_timer10 { + status = "reserved"; +}; + +&main_timer11 { + status = "reserved"; +}; + &serdes_ln_ctrl { idle-states = <AM64_SERDES0_LANE0_PCIE0>; }; diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts index 33e421ec18abb..07fbdf2400d23 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts @@ -710,6 +710,23 @@ &mcu_m4fss { status = "okay"; }; +/* main_timers 8-11 are used by TI MCU FW */ +&main_timer8 { + status = "reserved"; +}; + +&main_timer9 { + status = "reserved"; +}; + +&main_timer10 { + status = "reserved"; +}; + +&main_timer11 { + status = "reserved"; +}; + &ecap0 { status = "okay"; /* PWM is available on Pin 1 of header J3 */ -- 2.48.0