[PATCH 0/2] Add WDT support for J7200 SOC

[PATCH 0/2] Add WDT support for J7200 SOC

[Udit Kumar]

This enables the ESMs and the associated PMIC.
Programming these bits is a requirement to make the watchdog actually reset the board.

After DT sync nodes bucka1 and main_esm has bootph property added in
pmic nodes.

RFC was sent
https://lore.kernel.org/all/20241126063543.2678052-1-u-kumar1@ti.com/

With current patch boot logs
https://gist.github.com/uditkumarti/adb647f86e6d166ea2d0ac98dceb7a9b

reset: https://gist.github.com/uditkumarti/adb647f86e6d166ea2d0ac98dceb7a9b#file-gistfile1-txt-L2344

Gowtham Tammana (1):
  arm: dts: k3-j7200: Add ESM PMIC support for tps659413

Neha Malcom Francis (1):
  configs: j7200_evm_r5: Add ESM related configs for J7200

 arch/arm/dts/k3-j7200-r5-common-proc-board.dts | 7 +++++++
 configs/j7200_evm_r5_defconfig                 | 2 ++
 2 files changed, 9 insertions(+)

-- 
2.34.1

[PATCH 1/2] arm: dts: k3-j7200: Add ESM PMIC support for tps659413

[Udit Kumar]

From: Gowtham Tammana <g-tammana@ti.com>

On J7200 processor board MCU_SAFETY_ERROR signal is routed to PMIC for
ESM error handling. The PMIC resets the board on receipt of the signal.
Enable the support for the board by adding ESM PMIC node.

Signed-off-by: Gowtham Tammana <g-tammana@ti.com>
---
 arch/arm/dts/k3-j7200-r5-common-proc-board.dts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/dts/k3-j7200-r5-common-proc-board.dts b/arch/arm/dts/k3-j7200-r5-common-proc-board.dts
index ecb1dd49c64..9ac29110324 100644
--- a/arch/arm/dts/k3-j7200-r5-common-proc-board.dts
+++ b/arch/arm/dts/k3-j7200-r5-common-proc-board.dts
@@ -120,3 +120,10 @@
 	vdd-supply-2 = <&buckb1>;
 	bootph-pre-ram;
 };
+
+&tps659414 {
+	esm: esm {
+		compatible = "ti,tps659413-esm";
+		bootph-pre-ram;
+	};
+};
-- 
2.34.1

[PATCH 2/2] configs: j7200_evm_r5: Add ESM related configs for J7200

[Udit Kumar]

From: Neha Malcom Francis <n-francis@ti.com>

Add CONFIG_ESM_K3 and CONFIG_ESM_PMIC to enable ESM initialization
in J7200.

Signed-off-by: Neha Malcom Francis <n-francis@ti.com>
Signed-off-by: Aniket Limaye <a-limaye@ti.com>
---
 configs/j7200_evm_r5_defconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/configs/j7200_evm_r5_defconfig b/configs/j7200_evm_r5_defconfig
index ae5849baf13..8df921c028b 100644
--- a/configs/j7200_evm_r5_defconfig
+++ b/configs/j7200_evm_r5_defconfig
@@ -99,7 +99,9 @@ CONFIG_DM_MAILBOX=y
 CONFIG_K3_SEC_PROXY=y
 CONFIG_FS_LOADER=y
 CONFIG_SPL_FS_LOADER=y
+CONFIG_ESM_K3=y
 CONFIG_K3_AVS0=y
+CONFIG_ESM_PMIC=y
 CONFIG_SUPPORT_EMMC_BOOT=y
 CONFIG_SPL_MMC_HS400_SUPPORT=y
 CONFIG_MMC_SDHCI=y
-- 
2.34.1

Re: [PATCH 0/2] Add WDT support for J7200 SOC

[Tom Rini]

On Fri, 14 Mar 2025 16:34:09 +0530, Udit Kumar wrote:

> This enables the ESMs and the associated PMIC.
> Programming these bits is a requirement to make the watchdog actually reset the board.
> 
> After DT sync nodes bucka1 and main_esm has bootph property added in
> pmic nodes.
> 
> RFC was sent
> https://lore.kernel.org/all/20241126063543.2678052-1-u-kumar1@ti.com/
> 
> [...]

Applied to u-boot/next, thanks!

[1/2] arm: dts: k3-j7200: Add ESM PMIC support for tps659413
      commit: 940f2a04f335e17919112402f748d06f2303ad09
[2/2] configs: j7200_evm_r5: Add ESM related configs for J7200
      commit: dbe3ea4274b005e05cf1ddaf1d6406e0e452720f
-- 
Tom