Add missing ESM and watchdog nodes for the sake of devicetree completion
of hardware description w.r.t Linux and ESM and WDT enablement on
U-Boot. This patch series adds the missing nodes for J721E and J7200.
Boot logs (updated for v3):
https://gist.github.com/nehamalcom/5dc94ab60f57df5d515d0a6d0da6e0d1
Changes since v2:
https://lore.kernel.org/all/[email protected]/
- corrected register size for MCU watchdog instance in J7200 (Udit)
- added Reviewed-by tag (Udit)
Changes since v1:
https://lore.kernel.org/all/[email protected]/
- modified node name numbering to be in sync with TRM (Udit)
- disabled wkup_esm node in J721E (Udit)
- added patch (5/5) for MCU domain watchdog instances in J7200 (Udit)
Neha Malcom Francis (5):
arm64: dts: ti: k3-j721e-mcu: Add the WKUP ESM instance
arm64: dts: ti: k3-j721e-mcu: Add the MCU domain watchdog instances
arm64: dts: ti: k3-j721e-main: Add the MAIN domain watchdog instances
arm64: dts: ti: k3-j7200-main: Add the MAIN domain watchdog instances
arm64: dts: ti: k3-j7200-mcu: Add the MCU domain watchdog instances
arch/arm64/boot/dts/ti/k3-j7200-main.dtsi | 27 ++++++
.../boot/dts/ti/k3-j7200-mcu-wakeup.dtsi | 26 ++++++
arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 93 +++++++++++++++++++
.../boot/dts/ti/k3-j721e-mcu-wakeup.dtsi | 32 +++++++
4 files changed, 178 insertions(+)
--
2.34.1
There are 2 watchdog instances in the MCU domain. These instances are
coupled with the MCU domain R55 instances. Reserve them as they are not
used by A72.
Signed-off-by: Neha Malcom Francis <[email protected]>
Reviewed-by: Udit Kumar <[email protected]>
---
Changes since v2:
- corrected register size from 0xbd to 0x100 as per TRM
.../boot/dts/ti/k3-j7200-mcu-wakeup.dtsi | 26 +++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
index 7cf21c99956e..f6ca4ffb5ee1 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
@@ -686,4 +686,30 @@ mcu_mcan1: can@40568000 {
bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
status = "disabled";
};
+
+ /*
+ * The 2 RTI instances are couple with MCU R5Fs so keeping them
+ * reserved as these will be used by their respective firmware
+ */
+ mcu_watchdog0: watchdog@40600000 {
+ compatible = "ti,j7-rti-wdt";
+ reg = <0x00 0x40600000 0x00 0x100>;
+ clocks = <&k3_clks 262 1>;
+ power-domains = <&k3_pds 262 TI_SCI_PD_EXCLUSIVE>;
+ assigned-clocks = <&k3_clks 262 1>;
+ assigned-clock-parents = <&k3_clks 262 5>;
+ /* reserved for MCU_R5F0_0 */
+ status = "reserved";
+ };
+
+ mcu_watchdog1: watchdog@40610000 {
+ compatible = "ti,j7-rti-wdt";
+ reg = <0x00 0x40610000 0x00 0x100>;
+ clocks = <&k3_clks 263 1>;
+ power-domains = <&k3_pds 263 TI_SCI_PD_EXCLUSIVE>;
+ assigned-clocks = <&k3_clks 263 1>;
+ assigned-clock-parents = <&k3_clks 263 5>;
+ /* reserved for MCU_R5F0_1 */
+ status = "reserved";
+ };
};
--
2.34.1