misc: S400_API: Update S400 API for buffer dump
Add ahab_dump_buffer API to dump AHAB buffer for debug purpose
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/drivers/misc/imx8ulp/s400_api.c b/drivers/misc/imx8ulp/s400_api.c
index dd5f9f2..3ffdeb2 100644
--- a/drivers/misc/imx8ulp/s400_api.c
+++ b/drivers/misc/imx8ulp/s400_api.c
@@ -271,3 +271,37 @@
return ret;
}
+
+int ahab_dump_buffer(u32 *buffer, u32 buffer_length)
+{
+ struct udevice *dev = gd->arch.s400_dev;
+ int size = sizeof(struct imx8ulp_s400_msg);
+ struct imx8ulp_s400_msg msg;
+ int ret, i = 0;
+
+ 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 = AHAB_LOG_CID;
+
+ 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;
+ }
+
+ if (buffer) {
+ buffer[i++] = *(u32 *)&msg; /* Need dump the response header */
+ for (; i < buffer_length && i < msg.size; i++)
+ buffer[i] = msg.data[i - 1];
+ }
+
+ return i;
+}