[PATCH 23/53] misc: s400_api: introduce ahab_release_m33_trout

[Peng Fan (OSS)]

From: Peng Fan <peng.fan at nxp.com>

Introduce Sentinel API ahab_release_m33_trout to make sure sentinel
release M33 trout and make sure M33 could boot.

Signed-off-by: Peng Fan <peng.fan at nxp.com>
---
 arch/arm/include/asm/mach-imx/s400_api.h |  1 +
 drivers/misc/sentinel/s400_api.c         | 25 ++++++++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/arch/arm/include/asm/mach-imx/s400_api.h b/arch/arm/include/asm/mach-imx/s400_api.h
index d95f8227b29..dc176e1f619 100644
--- a/arch/arm/include/asm/mach-imx/s400_api.h
+++ b/arch/arm/include/asm/mach-imx/s400_api.h
@@ -55,5 +55,6 @@ int ahab_get_fw_version(u32 *fw_version, u32 *sha1, u32 *response);
 int ahab_dump_buffer(u32 *buffer, u32 buffer_length);
 int ahab_get_info(struct sentinel_get_info_data *info, u32 *response);
 int ahab_get_fw_status(u32 *status, u32 *response);
+int ahab_release_m33_trout(void);
 
 #endif
diff --git a/drivers/misc/sentinel/s400_api.c b/drivers/misc/sentinel/s400_api.c
index ca7903670ed..01a673e5e13 100644
--- a/drivers/misc/sentinel/s400_api.c
+++ b/drivers/misc/sentinel/s400_api.c
@@ -420,3 +420,28 @@ int ahab_get_fw_status(u32 *status, u32 *response)
 
 	return ret;
 }
+
+int ahab_release_m33_trout(void)
+{
+	struct udevice *dev = gd->arch.s400_dev;
+	int size = sizeof(struct sentinel_msg);
+	struct sentinel_msg msg;
+	int ret;
+
+	if (!dev) {
+		printf("s400 dev is not initialized\n");
+		return -ENODEV;
+	}
+
+	msg.version = AHAB_VERSION;
+	msg.tag = AHAB_CMD_TAG;
+	msg.size = 1;
+	msg.command = 0xd3;
+
+	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;
+}
-- 
2.36.0