HSD#16027607811: misc: fcs: handle SDOS warning

This patch addresses the SDOS warning that occurs
for weak keys.

Signed-off-by: Sagar Khadgi <sagar.khadgi@intel.com>
Reviewed-by: Tanmay Kathpalia <tanmay.kathpalia@intel.com>
Reviewed-by: Khadgi Sagar <sagar.khadgi@intel.com>
Reviewed-by: Mahesh Rao <mahesh.rao@altera.com>
Reviewed-by: Ang Tien Sung <tien.sung.ang@intel.com>

Author: Sagar-Khadgi

drivers/misc/socfpga-config.c

@@ -1055,7 +1055,7 @@ static ssize_t sdos_store(struct device *dev, struct device_attribute *attr,
 
 	ret = hal_sdos_crypt(k_ctx);
 	if (ret)
-		pr_err("Failed to get device identity\n");
+		pr_err("Failed to perform SDOS operation\n");
 
 out:
 

drivers/misc/socfpga_fcs_hal.c

@@ -70,6 +70,8 @@
 #define HKDF_INPUT_DATA_SIZE		80
 
 #define FCS_MAX_RESP_MS			50
+#define SDOS_DECRYPTION_REPROVISION_KEY_WARN		0x102
+#define SDOS_DECRYPTION_NOT_LATEST_KEY_WARN		0x103
 
 static struct socfpga_fcs_priv *priv;
 
@@ -2351,8 +2353,10 @@ FCS_HAL_INT hal_sdos_crypt(struct fcs_cmd_context *const k_ctx)
 			FCS_DEV_SDOS_DATA_EXT, ret);
 		goto free_dbuf;
 	}
-	if (priv->status) {
-		LOG_ERR("Mailbox error, Failed to perform SDOS operation ret: %d priv->status = %d\n",
+	if ((priv->status) &&
+	    (priv->status != SDOS_DECRYPTION_REPROVISION_KEY_WARN) &&
+	    (priv->status != SDOS_DECRYPTION_NOT_LATEST_KEY_WARN)) {
+		LOG_ERR("Failed to perform SDOS operation ret: %d Mailbox Status = %d\n",
 			ret, priv->status);
 		ret = -EIO;
 		goto copy_mbox_status;