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576
component/common/mbed/targets/hal/rtl8195a/flash_api.c
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576
component/common/mbed/targets/hal/rtl8195a/flash_api.c
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/* mbed Microcontroller Library
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*******************************************************************************
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* Copyright (c) 2014, Realtek Semiconductor Corp.
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* All rights reserved.
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*
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* This module is a confidential and proprietary property of RealTek and
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* possession or use of this module requires written permission of RealTek.
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*******************************************************************************
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*/
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#include "objects.h"
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#include "PinNames.h"
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#include "pinmap.h"
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#include "rtl8195a.h"
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#include "hal_spi_flash.h"
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#include "hal_platform.h"
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#include "rtl8195a_spi_flash.h"
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#include "hal_api.h"
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#include "flash_api.h"
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extern u32 ConfigDebugInfo;
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extern SPIC_INIT_PARA SpicInitParaAllClk[3][CPU_CLK_TYPE_NO];
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_LONG_CALL_
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extern VOID SpicWaitBusyDoneRtl8195A(VOID);
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static int isinit = 0;
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static flash_t flashobj;
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static void flash_init(flash_t * obj);
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static void flash_turnon();
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/**
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* global data structure
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*/
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//flash_t flash;
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/**
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* @brief Control the flash chip write protect enable/disable
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* @param protect: 1/0: protect/unprotect
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* @retval none
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*/
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void flash_write_protect(flash_t *obj, uint32_t protect)
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{
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flash_turnon();
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if(isinit == 0)
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flash_init(&flashobj);
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SpicWriteProtectFlashRtl8195A(protect);
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SpicDisableRtl8195A();
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}
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/**
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* @brief Init Flash
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* @param obj: address of the flash object
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* @retval none
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*/
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void flash_init(flash_t *obj)
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{
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//SPIC_INIT_PARA spic_init_para;
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// Init SPI Flash Controller
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// DBG_8195A("Initial Spi Flash Controller\n");
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//SPI_FLASH_PIN_FCTRL(ON);
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if (!SpicFlashInitRtl8195A(SpicOneBitMode)){
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DBG_8195A("SPI Init Fail!!!!!!\n");
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HAL_WRITE32(SYSTEM_CTRL_BASE, REG_SYS_DSTBY_INFO3, HAL_READ32(SYSTEM_CTRL_BASE, REG_SYS_DSTBY_INFO3)|0xf);
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}
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else {
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isinit = 1;
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}
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flashobj.SpicInitPara.flashtype = SpicInitParaAllClk[0][0].flashtype;
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//DBG_8195A("Flash ID is = %x %x %x \n",SpicInitParaAllClk[0][0].id[0],SpicInitParaAllClk[0][0].id[1],SpicInitParaAllClk[0][0].id[2]);
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}
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void flash_turnon()
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{
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SPI_FLASH_PIN_FCTRL(ON);
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SpicWaitBusyDoneRtl8195A();
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}
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/**
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* @brief Erase flash sector
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* @param address: Specifies the starting address to be erased.
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* @retval none
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*/
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void flash_erase_sector(flash_t *obj, uint32_t address)
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{
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flash_turnon();
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if(isinit == 0)
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flash_init(&flashobj);
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SpicSectorEraseFlashRtl8195A(SPI_FLASH_BASE + address);
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SpicDisableRtl8195A();
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}
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void flash_erase_block(flash_t *obj, uint32_t address)
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{
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flash_turnon();
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if(isinit == 0)
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flash_init(&flashobj);
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SpicBlockEraseFlashRtl8195A(SPI_FLASH_BASE + address);
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SpicDisableRtl8195A();
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}
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/**
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* @brief Read a word from specified address
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* @param obj: Specifies the parameter of flash object.
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* @param address: Specifies the address to be read.
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* @param data: Specified the address to save the readback data.
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* @retval status: Success:1 or Failure: Others.
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*/
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int flash_read_word(flash_t *obj, uint32_t address, uint32_t * data)
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{
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flash_turnon();
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if(isinit == 0)
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flash_init(&flashobj);
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// Wait flash busy done (wip=0)
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SpicWaitWipDoneRefinedRtl8195A(flashobj.SpicInitPara);
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* data = HAL_READ32(SPI_FLASH_BASE, address);
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SpicDisableRtl8195A();
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return 1;
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}
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/**
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* @brief Write a word to specified address
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* @param obj: Specifies the parameter of flash object.
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* @param address: Specifies the address to be programmed.
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* @param data: Specified the data to be programmed.
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* @retval status: Success:1 or Failure: Others.
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*/
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int flash_write_word(flash_t *obj, uint32_t address, uint32_t data)
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{
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u8 flashtype = 0;
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flash_turnon();
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if(isinit == 0)
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flash_init(&flashobj);
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flashtype = flashobj.SpicInitPara.flashtype;
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//Write word
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HAL_WRITE32(SPI_FLASH_BASE, address, data);
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// Wait spic busy done
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SpicWaitBusyDoneRtl8195A();
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// Wait flash busy done (wip=0)
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if(flashtype == FLASH_MICRON){
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SpicWaitOperationDoneRtl8195A(flashobj.SpicInitPara);
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}
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else
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SpicWaitWipDoneRefinedRtl8195A(flashobj.SpicInitPara);
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SpicDisableRtl8195A();
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return 1;
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}
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/**
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* @brief Read a stream of data from specified address
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* @param obj: Specifies the parameter of flash object.
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* @param address: Specifies the address to be read.
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* @param len: Specifies the length of the data to read.
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* @param data: Specified the address to save the readback data.
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* @retval status: Success:1 or Failure: Others.
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*/
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int flash_stream_read(flash_t *obj, uint32_t address, uint32_t len, uint8_t * data)
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{
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u32 offset_to_align;
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u32 i;
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u32 read_word;
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uint8_t *ptr;
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uint8_t *pbuf;
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flash_turnon();
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if(isinit == 0)
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flash_init(&flashobj);
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// Wait flash busy done (wip=0)
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SpicWaitWipDoneRefinedRtl8195A(flashobj.SpicInitPara);
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offset_to_align = address & 0x03;
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pbuf = data;
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if (offset_to_align != 0) {
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// the start address is not 4-bytes aligned
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read_word = HAL_READ32(SPI_FLASH_BASE, (address - offset_to_align));
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ptr = (uint8_t*)&read_word + offset_to_align;
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offset_to_align = 4 - offset_to_align;
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for (i=0;i<offset_to_align;i++) {
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*pbuf = *(ptr+i);
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pbuf++;
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len--;
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if (len == 0) {
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break;
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}
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}
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}
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address = (((address-1) >> 2) + 1) << 2; // address = next 4-bytes aligned
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ptr = (uint8_t*)&read_word;
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if ((u32)pbuf & 0x03) {
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while (len >= 4) {
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read_word = HAL_READ32(SPI_FLASH_BASE, address);
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for (i=0;i<4;i++) {
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*pbuf = *(ptr+i);
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pbuf++;
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}
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address += 4;
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len -= 4;
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}
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}
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else {
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while (len >= 4) {
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*((u32 *)pbuf) = HAL_READ32(SPI_FLASH_BASE, address);
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pbuf += 4;
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address += 4;
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len -= 4;
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}
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}
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if (len > 0) {
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read_word = HAL_READ32(SPI_FLASH_BASE, address);
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for (i=0;i<len;i++) {
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*pbuf = *(ptr+i);
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pbuf++;
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}
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}
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SpicDisableRtl8195A();
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return 1;
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}
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/**
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* @brief Write a stream of data to specified address
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* @param obj: Specifies the parameter of flash object.
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* @param address: Specifies the address to be read.
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* @param len: Specifies the length of the data to write.
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* @param data: Specified the pointer of the data to be written.
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* @retval status: Success:1 or Failure: Others.
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*/
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int flash_stream_write(flash_t *obj, uint32_t address, uint32_t len, uint8_t * data)
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{
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u32 offset_to_align;
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u32 align_addr;
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u32 i;
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u32 write_word;
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uint8_t *ptr;
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uint8_t *pbuf;
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u8 flashtype = 0;
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flash_turnon();
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if(isinit == 0)
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flash_init(&flashobj);
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flashtype = flashobj.SpicInitPara.flashtype;
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offset_to_align = address & 0x03;
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pbuf = data;
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if (offset_to_align != 0) {
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// the start address is not 4-bytes aligned
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align_addr = (address - offset_to_align);
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write_word = HAL_READ32(SPI_FLASH_BASE, align_addr);
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ptr = (uint8_t*)&write_word + offset_to_align;
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offset_to_align = 4 - offset_to_align;
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for (i=0;i<offset_to_align;i++) {
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*(ptr+i) = *pbuf;
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pbuf++;
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len--;
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if (len == 0) {
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break;
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}
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}
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//Write word
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HAL_WRITE32(SPI_FLASH_BASE, align_addr, write_word);
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// Wait spic busy done
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SpicWaitBusyDoneRtl8195A();
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// Wait flash busy done (wip=0)
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if(flashtype == FLASH_MICRON){
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SpicWaitOperationDoneRtl8195A(flashobj.SpicInitPara);
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}
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else
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SpicWaitWipDoneRefinedRtl8195A(flashobj.SpicInitPara);
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}
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address = (((address-1) >> 2) + 1) << 2; // address = next 4-bytes aligned
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if ((u32)pbuf & 0x03) {
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while (len >= 4) {
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write_word = (u32)(*pbuf) | ((u32)(*(pbuf+1)) << 8) | ((u32)(*(pbuf+2)) << 16) | ((u32)(*(pbuf+3)) << 24);
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//Write word
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HAL_WRITE32(SPI_FLASH_BASE, address, write_word);
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// Wait spic busy done
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SpicWaitBusyDoneRtl8195A();
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// Wait flash busy done (wip=0)
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if(flashtype == FLASH_MICRON){
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SpicWaitOperationDoneRtl8195A(flashobj.SpicInitPara);
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}
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else
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SpicWaitWipDoneRefinedRtl8195A(flashobj.SpicInitPara);
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pbuf += 4;
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address += 4;
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len -= 4;
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}
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}
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else {
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while (len >= 4) {
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//Write word
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HAL_WRITE32(SPI_FLASH_BASE, address, (u32)*((u32 *)pbuf));
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// Wait spic busy done
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SpicWaitBusyDoneRtl8195A();
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// Wait flash busy done (wip=0)
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if(flashtype == FLASH_MICRON){
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SpicWaitOperationDoneRtl8195A(flashobj.SpicInitPara);
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}
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else
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SpicWaitWipDoneRefinedRtl8195A(flashobj.SpicInitPara);
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pbuf += 4;
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address += 4;
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len -= 4;
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}
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}
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if (len > 0) {
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write_word = HAL_READ32(SPI_FLASH_BASE, address);
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ptr = (uint8_t*)&write_word;
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for (i=0;i<len;i++) {
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*(ptr+i) = *pbuf;
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pbuf++;
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}
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//Write word
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HAL_WRITE32(SPI_FLASH_BASE, address, write_word);
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// Wait spic busy done
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SpicWaitBusyDoneRtl8195A();
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// Wait flash busy done (wip=0)
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if(flashtype == FLASH_MICRON){
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SpicWaitOperationDoneRtl8195A(flashobj.SpicInitPara);
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}
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else
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SpicWaitWipDoneRefinedRtl8195A(flashobj.SpicInitPara);
|
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|
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}
|
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SpicDisableRtl8195A();
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return 1;
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}
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|
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/*
|
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Function Description:
|
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This function performans the same functionality as the function flash_stream_write.
|
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It enhances write performance by reducing overheads.
|
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Users can use either of functions depending on their needs.
|
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|
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* @brief Write a stream of data to specified address
|
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* @param obj: Specifies the parameter of flash object.
|
||||
* @param address: Specifies the address to be read.
|
||||
* @param Length: Specifies the length of the data to write.
|
||||
* @param data: Specified the pointer of the data to be written.
|
||||
* @retval status: Success:1 or Failure: Others.
|
||||
|
||||
*/
|
||||
|
||||
int flash_burst_write(flash_t *obj, uint32_t address ,uint32_t Length, uint8_t * data)
|
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{
|
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u32 OccuSize;
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u32 ProgramSize;
|
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u32 PageSize;
|
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u8 flashtype = 0;
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PageSize = 256;
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flash_turnon();
|
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|
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if(isinit == 0)
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flash_init(&flashobj);
|
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flashtype = flashobj.SpicInitPara.flashtype;
|
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|
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OccuSize = address & 0xFF;
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if((Length >= PageSize) ||((Length + OccuSize) >= PageSize))
|
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ProgramSize = PageSize - OccuSize;
|
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else
|
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ProgramSize = Length;
|
||||
|
||||
flashobj.Length = Length;
|
||||
while(Length > 0){
|
||||
if(OccuSize){
|
||||
SpicUserProgramRtl8195A(data, flashobj.SpicInitPara, address, &(flashobj.Length));
|
||||
// Wait spic busy done
|
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SpicWaitBusyDoneRtl8195A();
|
||||
// Wait flash busy done (wip=0)
|
||||
if(flashtype == FLASH_MICRON){
|
||||
SpicWaitOperationDoneRtl8195A(flashobj.SpicInitPara);
|
||||
}
|
||||
else
|
||||
SpicWaitWipDoneRefinedRtl8195A(flashobj.SpicInitPara);
|
||||
|
||||
address += ProgramSize;
|
||||
data+= ProgramSize;
|
||||
Length -= ProgramSize;
|
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OccuSize = 0;
|
||||
}
|
||||
else{
|
||||
while((flashobj.Length) >= PageSize){
|
||||
SpicUserProgramRtl8195A(data, flashobj.SpicInitPara, address, &(flashobj.Length));
|
||||
// Wait spic busy done
|
||||
SpicWaitBusyDoneRtl8195A();
|
||||
// Wait flash busy done (wip=0)
|
||||
if(flashtype == FLASH_MICRON){
|
||||
SpicWaitOperationDoneRtl8195A(flashobj.SpicInitPara);
|
||||
}
|
||||
else
|
||||
SpicWaitWipDoneRefinedRtl8195A(flashobj.SpicInitPara);
|
||||
|
||||
address += PageSize;
|
||||
data+=PageSize;
|
||||
Length -= PageSize;
|
||||
}
|
||||
flashobj.Length = Length;
|
||||
if((flashobj.Length) > 0){
|
||||
SpicUserProgramRtl8195A(data, flashobj.SpicInitPara, address, &(flashobj.Length));
|
||||
// Wait spic busy done
|
||||
SpicWaitBusyDoneRtl8195A();
|
||||
// Wait flash busy done (wip=0)
|
||||
if(flashtype == FLASH_MICRON){
|
||||
SpicWaitOperationDoneRtl8195A(flashobj.SpicInitPara);
|
||||
}
|
||||
else
|
||||
SpicWaitWipDoneRefinedRtl8195A(flashobj.SpicInitPara);
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
flashobj.Length = Length;
|
||||
}
|
||||
|
||||
SpicDisableRtl8195A();
|
||||
return 1;
|
||||
|
||||
}
|
||||
/**
|
||||
* @brief Read a stream of data from specified address
|
||||
* @param obj: Specifies the parameter of flash object.
|
||||
* @param address: Specifies the address to be read.
|
||||
* @param len: Specifies the length of the data to read.
|
||||
* @param data: Specified the address to save the readback data.
|
||||
* @retval status: Success:1 or Failure: Others.
|
||||
*/
|
||||
|
||||
int flash_burst_read(flash_t *obj, uint32_t address, uint32_t Length, uint8_t * data)
|
||||
{
|
||||
flash_turnon();
|
||||
|
||||
if(isinit == 0)
|
||||
flash_init(&flashobj);
|
||||
|
||||
// Wait flash busy done (wip=0)
|
||||
SpicWaitWipDoneRefinedRtl8195A(flashobj.SpicInitPara);
|
||||
SpicUserReadRtl8195A(Length, address, data,SpicOneBitMode);
|
||||
SpicDisableRtl8195A();
|
||||
return 1;
|
||||
}
|
||||
|
||||
int flash_get_status(flash_t *obj)
|
||||
{
|
||||
u8 Status = 0;
|
||||
|
||||
flash_turnon();
|
||||
|
||||
if(isinit == 0)
|
||||
flash_init(&flashobj);
|
||||
|
||||
Status = SpicGetFlashStatusRefinedRtl8195A(flashobj.SpicInitPara);
|
||||
|
||||
SpicDisableRtl8195A();
|
||||
return Status;
|
||||
}
|
||||
|
||||
/*
|
||||
Function Description:
|
||||
Please refer to the datatsheet of flash for more details of the content of status register.
|
||||
The block protected area and the corresponding control bits are provided in the flash datasheet.
|
||||
|
||||
* @brief Set Status register to enable desired operation
|
||||
* @param obj: Specifies the parameter of flash object.
|
||||
* @param data: Specifies which bit users like to set
|
||||
ex: if users want to set the third bit, data = 0x8.
|
||||
|
||||
*/
|
||||
int flash_set_status(flash_t *obj, uint32_t data)
|
||||
{
|
||||
flash_turnon();
|
||||
|
||||
if(isinit == 0)
|
||||
flash_init(&flashobj);
|
||||
|
||||
SpicSetFlashStatusRefinedRtl8195A(data, flashobj.SpicInitPara);
|
||||
SpicWaitWipDoneRefinedRtl8195A(flashobj.SpicInitPara);
|
||||
DBG_8195A("Status Register After Setting= %x\n", flash_get_status(&flashobj));
|
||||
SpicDisableRtl8195A();
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*
|
||||
Function Description:
|
||||
This function aims to reset the status register, please make sure the operation is appropriate.
|
||||
*/
|
||||
void flash_reset_status(flash_t *obj)
|
||||
{
|
||||
flash_turnon();
|
||||
|
||||
if(isinit == 0)
|
||||
flash_init(&flashobj);
|
||||
|
||||
SpicSetFlashStatusRefinedRtl8195A(0, flashobj.SpicInitPara);
|
||||
SpicWaitWipDoneRefinedRtl8195A(flashobj.SpicInitPara);
|
||||
SpicDisableRtl8195A();
|
||||
}
|
||||
/*
|
||||
Function Description:
|
||||
This function is only for Micron 512Mbit flash to access beyond 128Mbit by switching between four 128 Mbit area.
|
||||
Please refer to flash datasheet for more information about memory mapping.
|
||||
*/
|
||||
|
||||
int flash_set_extend_addr(flash_t *obj, uint32_t data)
|
||||
{
|
||||
flash_turnon();
|
||||
|
||||
if(isinit == 0)
|
||||
flash_init(&flashobj);
|
||||
|
||||
SpicSetExtendAddrRtl8195A(data, flashobj.SpicInitPara);
|
||||
SpicWaitWipDoneRefinedRtl8195A(flashobj.SpicInitPara);
|
||||
DBG_8195A("Extended Address Register After Setting= %x\n", flash_get_extend_addr(&flashobj));
|
||||
SpicDisableRtl8195A();
|
||||
return 1;
|
||||
}
|
||||
|
||||
int flash_get_extend_addr(flash_t *obj)
|
||||
{
|
||||
u8 Status = 0;
|
||||
|
||||
flash_turnon();
|
||||
if(isinit == 0)
|
||||
flash_init(&flashobj);
|
||||
Status = SpicGetExtendAddrRtl8195A(flashobj.SpicInitPara);
|
||||
|
||||
SpicDisableRtl8195A();
|
||||
return Status;
|
||||
|
||||
}
|
||||
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue