82 lines
3.4 KiB
C
82 lines
3.4 KiB
C
/*******************************************************************************
|
|
* 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) */
|