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[RFC/RFT,v2,3/4] board: ti: j784s4: Initialize the ESM & PMIC ESM

Message ID 20240911-j784s4-esm-enable-v2-3-957f56b588d9@redhat.com
State RFC
Delegated to: Tom Rini
Headers show
Series k3-j784s4-r5-evm: Enable ESMs and related PMIC | expand

Commit Message

Andrew Halaney Sept. 11, 2024, 5:39 p.m. UTC 
From: Keerthy <j-keerthy@ti.com>

Initialize the ESM & PMIC ESM. This allows things like
the watchdog to reset the board when tripped.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Neha Malcom Francis <n-francis@ti.com>
Link: https://git.ti.com/cgit/ti-u-boot/ti-u-boot/commit/board/ti/j784s4/evm.c?h=ti-u-boot-2024.04&id=9d8b40958ce792808bc571d828197dbc2e7978d6
Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
---
 board/ti/j784s4/evm.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
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Patch

diff --git a/board/ti/j784s4/evm.c b/board/ti/j784s4/evm.c
index 548dbd5925d..0f4d383b420 100644
--- a/board/ti/j784s4/evm.c
+++ b/board/ti/j784s4/evm.c
@@ -7,6 +7,7 @@ 
  *
  */
 
+#include <dm.h>
 #include <efi_loader.h>
 #include <init.h>
 #include <spl.h>
@@ -72,4 +73,27 @@  int board_late_init(void)
 
 void spl_board_init(void)
 {
+	struct udevice *dev;
+	int ret;
+
+	if (IS_ENABLED(CONFIG_ESM_K3)) {
+		const char * const esms[] = {"esm@700000", "esm@40800000", "esm@42080000"};
+
+		for (int i = 0; i < ARRAY_SIZE(esms); ++i) {
+			ret = uclass_get_device_by_name(UCLASS_MISC, esms[i],
+							&dev);
+			if (ret) {
+				printf("MISC init for %s failed: %d\n", esms[i], ret);
+				break;
+			}
+		}
+	}
+
+	if (IS_ENABLED(CONFIG_ESM_PMIC) && ret == 0) {
+		ret = uclass_get_device_by_driver(UCLASS_MISC,
+						  DM_DRIVER_GET(pmic_esm),
+						  &dev);
+		if (ret)
+			printf("ESM PMIC init failed: %d\n", ret);
+	}
 }