Re: [PATCH v2 5/5] arm64: dts: ti: k3-j7200-mcu: Add the MCU domain watchdog instances

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Hi Udit

On 12/04/24 10:33, Kumar, Udit wrote:
Hi Neha

On 4/12/2024 9:55 AM, Neha Malcom Francis wrote:
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 <n-francis@xxxxxx>
---
Changes since v1:
- patch added

  .../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..d1a42c3f30c0 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 0xbd>;


please refer  Table 2-3. MCU Domain Memory Map of TRM.

Size of wdt is 0x100 , with this change in size from 0xbd to 0x100.

you can use

Reviewed-by: Udit Kumar <u-kumar1@xxxxxx>  for whole series

Thank you for catching that! Sending v3 soon!


+        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 0xbd>;
+        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";
+    };
  };

--
Thanking You
Neha Malcom Francis




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