From 93c8f3dd236c81ddfea5b564e191a1139a37a98f Mon Sep 17 00:00:00 2001
From: qqwang <qqwang@bouffalolab.com>
Date: Thu, 5 Aug 2021 17:56:16 +0800
Subject: [PATCH] [feat][l1c] update flush cache external api

---
 drivers/bl702_driver/std_drv/inc/bl702_l1c.h |  1 +
 drivers/bl702_driver/std_drv/src/bl702_l1c.c | 24 ++++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/drivers/bl702_driver/std_drv/inc/bl702_l1c.h b/drivers/bl702_driver/std_drv/inc/bl702_l1c.h
index f19f5404..6c3a27d6 100644
--- a/drivers/bl702_driver/std_drv/inc/bl702_l1c.h
+++ b/drivers/bl702_driver/std_drv/inc/bl702_l1c.h
@@ -173,6 +173,7 @@ void L1C_BMX_TO_IRQHandler(void);
 BL_Err_Type L1C_Cache_Enable_Set(uint8_t wayDisable);
 void L1C_Cache_Write_Set(BL_Fun_Type wtEn, BL_Fun_Type wbEn, BL_Fun_Type waEn);
 BL_Err_Type L1C_Cache_Flush(uint8_t wayDisable);
+BL_Err_Type L1C_Cache_Flush_Ext(void);
 void L1C_Cache_Hit_Count_Get(uint32_t *hitCountLow, uint32_t *hitCountHigh);
 uint32_t L1C_Cache_Miss_Count_Get(void);
 void L1C_Cache_Read_Disable(void);
diff --git a/drivers/bl702_driver/std_drv/src/bl702_l1c.c b/drivers/bl702_driver/std_drv/src/bl702_l1c.c
index fe230fe9..fd9cfa06 100644
--- a/drivers/bl702_driver/std_drv/src/bl702_l1c.c
+++ b/drivers/bl702_driver/std_drv/src/bl702_l1c.c
@@ -248,6 +248,30 @@ BL_Err_Type ATTR_TCM_SECTION L1C_Cache_Flush(uint8_t wayDisable)
 }
 #endif
 
+/****************************************************************************/ /**
+ * @brief  Flush cache external api
+ *
+ * @param  None
+ *
+ * @return SUCCESS or ERROR
+ *
+*******************************************************************************/
+BL_Err_Type ATTR_TCM_SECTION L1C_Cache_Flush_Ext(void)
+{
+    uint32_t tmpVal;
+
+    /* Disable early respone */
+    tmpVal = BL_RD_REG(L1C_BASE, L1C_CONFIG);
+    L1C_Cache_Flush((tmpVal >> L1C_WAY_DIS_POS) & 0xf);
+    __NOP();
+    __NOP();
+    __NOP();
+    __NOP();
+    __NOP();
+
+    return SUCCESS;
+}
+
 /****************************************************************************/ /**
  * @brief  Get cache hit count
  *