From: Ye Li <ye.li@nxp.com>
Date: Thu, 8 Jan 2026 11:06:56 +0000 (+0800)
Subject: misc: ele_api: Add Voltage change start and finish APIs
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e77d6948f5c2b5fee49b64dbd76bd334219ff963;p=thirdparty%2Fu-boot.git

misc: ele_api: Add Voltage change start and finish APIs

On GDET enabled part, need to call voltage change start and finish
APIs when adjust the voltage more than 100mv. Otherwise GDET will be
triggered and system is reset

Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---

diff --git a/arch/arm/include/asm/mach-imx/ele_api.h b/arch/arm/include/asm/mach-imx/ele_api.h
index 64b243dcaaa..4e1afc42bd8 100644
--- a/arch/arm/include/asm/mach-imx/ele_api.h
+++ b/arch/arm/include/asm/mach-imx/ele_api.h
@@ -14,6 +14,8 @@
 #define ELE_PING_REQ (0x01)
 #define ELE_FW_AUTH_REQ (0x02)
 #define ELE_RESTART_RST_TIMER_REQ (0x04)
+#define ELE_VOLT_CHANGE_START_REQ (0x12)
+#define ELE_VOLT_CHANGE_FINISH_REQ (0x13)
 #define ELE_DUMP_DEBUG_BUFFER_REQ (0x21)
 #define ELE_OEM_CNTN_AUTH_REQ (0x87)
 #define ELE_VERIFY_IMAGE_REQ (0x88)
@@ -160,4 +162,6 @@ int ele_return_lifecycle_update(ulong signed_msg_blk, u32 *response);
 int ele_start_rng(void);
 int ele_write_shadow_fuse(u32 fuse_id, u32 fuse_val, u32 *response);
 int ele_read_shadow_fuse(u32 fuse_id, u32 *fuse_val, u32 *response);
+int ele_volt_change_start_req(void);
+int ele_volt_change_finish_req(void);
 #endif
diff --git a/drivers/misc/imx_ele/ele_api.c b/drivers/misc/imx_ele/ele_api.c
index 661f70cf870..e7aee0fcef1 100644
--- a/drivers/misc/imx_ele/ele_api.c
+++ b/drivers/misc/imx_ele/ele_api.c
@@ -794,3 +794,53 @@ int ele_generate_dek_blob(u32 key_id, u32 src_paddr, u32 dst_paddr, u32 max_outp
 
 	return ret;
 }
+
+int ele_volt_change_start_req(void)
+{
+	struct udevice *dev = gd->arch.ele_dev;
+	int size = sizeof(struct ele_msg);
+	struct ele_msg msg = {};
+	int ret;
+
+	if (!dev) {
+		printf("ele dev is not initialized\n");
+		return -ENODEV;
+	}
+
+	msg.version = ELE_VERSION;
+	msg.tag = ELE_CMD_TAG;
+	msg.size = 1;
+	msg.command = ELE_VOLT_CHANGE_START_REQ;
+
+	ret = misc_call(dev, false, &msg, size, &msg, size);
+	if (ret)
+		printf("Error: %s: ret %d, response 0x%x\n",
+		       __func__, ret, msg.data[0]);
+
+	return ret;
+}
+
+int ele_volt_change_finish_req(void)
+{
+	struct udevice *dev = gd->arch.ele_dev;
+	int size = sizeof(struct ele_msg);
+	struct ele_msg msg = {};
+	int ret;
+
+	if (!dev) {
+		printf("ele dev is not initialized\n");
+		return -ENODEV;
+	}
+
+	msg.version = ELE_VERSION;
+	msg.tag = ELE_CMD_TAG;
+	msg.size = 1;
+	msg.command = ELE_VOLT_CHANGE_FINISH_REQ;
+
+	ret = misc_call(dev, false, &msg, size, &msg, size);
+	if (ret)
+		printf("Error: %s: ret %d, response 0x%x\n",
+		       __func__, ret, msg.data[0]);
+
+	return ret;
+}