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44676bde72
* Add `.ramfunc` section to bootrom loader script * exclude spiffs functionality from flashmem.h/flashmem.c (allows bootrom to use flashmem) * hide unused tick.h / flashmem.h functions from bootrom (not technically necessary; see comments) * bootrom: add source files, include path, and defines when `PLATFORM_DEFS` defines `WITH_FLASH` * Define `AS_BOOTROM` to indicate code is building for bootrom
185 lines
5.4 KiB
C
185 lines
5.4 KiB
C
//-----------------------------------------------------------------------------
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// Borrowed initially from Arduino SPIFlash Library v.2.5.0
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// Copyright (C) 2015 by Prajwal Bhattaram.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// See LICENSE.txt for the text of the license.
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//-----------------------------------------------------------------------------
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
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// Common Instructions //
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
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#ifndef __FLASHMEM_H
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#define __FLASHMEM_H
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#include "common.h"
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// Used Command
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#define ID 0x90
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#define MANID 0x90
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#define JEDECID 0x9F
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#define READSTAT1 0x05
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#define READSTAT2 0x35
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#define WRITESTAT 0x01
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#define WRITEDISABLE 0x04
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#define WRITEENABLE 0x06
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#define READDATA 0x03
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#define FASTREAD 0x0B
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#define PAGEPROG 0x02
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#define SECTORERASE 0x20
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#define BLOCK32ERASE 0x52
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#define BLOCK64ERASE 0xD8
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#define CHIPERASE 0xC7
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#define UNIQUE_ID 0x4B
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// Not used or not support command
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#define RELEASE 0xAB
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#define POWERDOWN 0xB9
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#define SUSPEND 0x75
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#define RESUME 0x7A
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// Flash busy timeout: 20ms is the strict minimum when writing 256kb
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#define BUSY_TIMEOUT 200000L
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#define WINBOND_MANID 0xEF
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#define WINBOND_DEVID 0x11
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#define PAGESIZE 0x100
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#define WINBOND_WRITE_DELAY 0x02
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#define SPI_CLK 48000000
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#define BUSY 0x01
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#define WRTEN 0x02
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#define SUS 0x40
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#define DUMMYBYTE 0xEE
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#define NULLBYTE 0x00
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#define NULLINT 0x0000
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#define NO_CONTINUE 0x00
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#define PASS 0x01
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#define FAIL 0x00
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#define maxAddress capacity
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
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// List of Error codes //
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
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#define SUCCESS 0x00
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#define CALLBEGIN 0x01
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#define UNKNOWNCHIP 0x02
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#define UNKNOWNCAP 0x03
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#define CHIPBUSY 0x04
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#define OUTOFBOUNDS 0x05
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#define CANTENWRITE 0x06
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#define PREVWRITTEN 0x07
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#define LOWRAM 0x08
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#define NOSUSPEND 0x09
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#define UNKNOWNERROR 0xFF
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// List of blocks
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#define MAX_BLOCKS 4
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#define MAX_SECTORS 16
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//#define FLASH_BAUD 24000000
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#define FLASH_MINFAST 24000000 //33000000
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#define FLASH_BAUD MCK/2
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#define FLASH_FASTBAUD MCK
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#define FLASH_MINBAUD FLASH_FASTBAUD
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
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bool FlashInit(void);
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void Flash_UniqueID(uint8_t *uid);
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void FlashStop(void);
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void FlashSetup(uint32_t baudrate);
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bool Flash_CheckBusy(uint32_t timeout);
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uint8_t Flash_ReadStat1(void);
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uint16_t FlashSendByte(uint32_t data);
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uint16_t FlashSendLastByte(uint32_t data);
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#ifndef AS_BOOTROM
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// Bootrom does not require these functions.
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// Wrap in #ifndef to avoid accidental bloat of bootrom
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// Bootrom needs only enough to get uniqueID from flash.
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// It calls three functions. Full call trees listed:
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//
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// FlashInit()
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// |
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// \____ FlashSetup()
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// | \____ leaf
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// |
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// \____ StartTicks()
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// | \____ leaf
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// |
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// \____ Flash_CheckBusy() [*]
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// | \____ WaitUS()
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// | | \____ WaitTicks()
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// | | \____ leaf
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// | |
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// | \____ StartCountUS()
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// | | \____ leaf
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// | |
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// | \____ GetCountUS()
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// | | \____ leaf
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// | |
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// | \____ Flash_ReadStat1()
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// | \____ FlashSendByte()
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// | | \____ leaf
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// | |
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// | \____ FlashSendLastByte()
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// | \____ FlashSendByte()
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// | \____ leaf
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// |
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// \____ StopTicks()
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// \____ leaf
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//
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// Flash_UniqueID()
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// \____ FlashCheckBusy() (see FlashInit)
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// \____ FlashSendByteByte() (see FlashInit)
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// \____ FlashSendByteLastByte() (see FlashInit)
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//
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//
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// FlashStop() [*]
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void FlashmemSetSpiBaudrate(uint32_t baudrate);
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bool Flash_WaitIdle(void);
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void Flash_TransferAdresse(uint32_t address);
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void Flash_WriteEnable(void);
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bool Flash_WipeMemoryPage(uint8_t page);
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bool Flash_WipeMemory(void);
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bool Flash_Erase4k(uint8_t block, uint8_t sector);
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//bool Flash_Erase32k(uint32_t address);
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bool Flash_Erase64k(uint8_t block);
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uint8_t Flash_ReadID(void);
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uint16_t Flash_ReadData(uint32_t address, uint8_t *out, uint16_t len);
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uint16_t Flash_ReadDataCont(uint32_t address, uint8_t *out, uint16_t len);
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uint16_t Flash_Write(uint32_t address, uint8_t *in, uint16_t len);
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uint16_t Flash_WriteData(uint32_t address, uint8_t *in, uint16_t len);
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uint16_t Flash_WriteDataCont(uint32_t address, uint8_t *in, uint16_t len);
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void Flashmem_print_status(void);
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void Flashmem_print_info(void);
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#endif // #ifndef AS_BOOTROM
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#endif
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