diff options
| author | Hari Nagalla <hnagalla@ti.com> | 2025-05-02 17:03:25 -0500 |
|---|---|---|
| committer | Nishanth Menon <nm@ti.com> | 2025-05-06 07:29:51 -0500 |
| commit | e4b55d85024f806c9b364d498e0ebbc74d76d77d (patch) | |
| tree | 1ca4e6b04d2caaa82e484f1ead402c4d61509e25 | |
| parent | b4ec77305c2645ce96c4a13aca0c375815e06672 (diff) | |
arm64: dts: ti: k3-am64: Reserve timers used by MCU FW
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@ti.com>
Signed-off-by: Judith Mendez <jm@ti.com>
Reviewed-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20250502220325.3230653-12-jm@ti.com
Signed-off-by: Nishanth Menon <nm@ti.com>
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am642-evm.dts | 20 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am642-sk.dts | 20 |
2 files changed, 40 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 5c6197ba842e..e01866372293 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts @@ -795,6 +795,26 @@ status = "okay"; }; +/* main_timer8 is used by r5f0-0 */ +&main_timer8 { + status = "reserved"; +}; + +/* main_timer9 is used by r5f0-1 */ +&main_timer9 { + status = "reserved"; +}; + +/* main_timer10 is used by r5f1-0 */ +&main_timer10 { + status = "reserved"; +}; + +/* main_timer11 is used by r5f1-1 */ +&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 33e421ec18ab..1deaa0be0085 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts @@ -710,6 +710,26 @@ status = "okay"; }; +/* main_timer8 is used by r5f0-0 */ +&main_timer8 { + status = "reserved"; +}; + +/* main_timer9 is used by r5f0-1 */ +&main_timer9 { + status = "reserved"; +}; + +/* main_timer10 is used by r5f1-0 */ +&main_timer10 { + status = "reserved"; +}; + +/* main_timer11 is used by r5f1-1 */ +&main_timer11 { + status = "reserved"; +}; + &ecap0 { status = "okay"; /* PWM is available on Pin 1 of header J3 */ |