add IPL

IPL/Customer/Mobis/V4H_Cx_Loader/ip/rtvram/rtvram.c

@@ -0,0 +1,81 @@
+/*******************************************************************************
+* DISCLAIMER
+* This software is supplied by Renesas Electronics Corporation and is only
+* intended for use with Renesas products. No other uses are authorized. This
+* software is owned by Renesas Electronics Corporation and is protected under
+* all applicable laws, including copyright laws.
+* THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING
+* THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT
+* LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
+* AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED.
+* TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS
+* ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE
+* FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR
+* ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE
+* BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+* Renesas reserves the right, without notice, to make changes to this software
+* and to discontinue the availability of this software. By using this software,
+* you agree to the additional terms and conditions found by accessing the
+* following link:
+* http://www.renesas.com/disclaimer
+* Copyright 2022 Renesas Electronics Corporation All rights reserved.
+*******************************************************************************/
+
+/*******************************************************************************
+ * DESCRIPTION   : RT-VRAM driver
+ ******************************************************************************/
+/******************************************************************************
+ * @file          RTVRAM.c
+ * - Version      : 0.03
+ * @brief         RT-VRAM driver.
+ * .
+ *****************************************************************************/
+/******************************************************************************
+ * History : DD.MM.YYYY Version  Description
+ *         : 17.11.2021 0.01     First Release
+ *         : 03.12.2021 0.02     remove Cache flush.
+ *         : 06.01.2022 0.03     Static analysis support
+ *****************************************************************************/
+
+#if defined(__RH850G3K__)
+#include <ram_def.h>
+#else
+#include <rcar_register.h>
+#endif
+#include <rtvram.h>
+#include <mem_io.h>
+#include <log.h>
+#include <inline_asm.h>
+
+#define RTVRAM_VBUF_CFG_CACHE_MODE_8WAY    (1U << 8U)
+#define RTVRAM_VBUF_CFG_VBUF_SIZE_28M      (6U << 0U)
+
+#define RTVRAM_EXT_MODE_EXT     (1U << 0U)
+
+#define RTVRAM_VBUF_NUM    (7U)
+
+#define RTVRAM_EXTEND_ENABLE    (1U)
+
+void rtvram_extendmode(void)
+{
+#if (RTVRAM_EXTEND == RTVRAM_EXTEND_ENABLE)
+    uint32_t reg;
+    uint32_t loop;
+
+    /* Set each 4MB from the top of SDRAM as the buffer area of RT-VRAM. */
+    for(loop = 0; loop < RTVRAM_VBUF_NUM; loop++)
+    {
+        mem_write32(get_vbuf_baddr_addr(loop), (uint32_t)((SDRAM_40BIT_ADDR_TOP + (RTVRAM_VBUF_AREA_SIZE * loop)) >> 16U));
+    }
+
+    reg = mem_read32(RTVRAM_VBUF_CFG);
+    reg |= (RTVRAM_VBUF_CFG_CACHE_MODE_8WAY | RTVRAM_VBUF_CFG_VBUF_SIZE_28M);  /* Cache Mode: 8-way, VBF size: 28M */
+    mem_write32(RTVRAM_VBUF_CFG, reg);
+
+    /* Set at the end */
+    mem_write32(RTVRAM_EXT_MODE, RTVRAM_EXT_MODE_EXT); /* Change from Compatible Mode to Extended Mode */
+
+    syncm();
+#endif
+}
+/* End of function rtvram_extendmode(void) */