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Bootrom: Enable serial number from flash

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* 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
This commit is contained in:
Henry Gabryjelski 2023-02-17 16:59:00 -08:00
commit 44676bde72
9 changed files with 373 additions and 272 deletions
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184
common_arm/flashmem.h Normal file
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//-----------------------------------------------------------------------------
// Borrowed initially from Arduino SPIFlash Library v.2.5.0
// Copyright (C) 2015 by Prajwal Bhattaram.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// See LICENSE.txt for the text of the license.
//-----------------------------------------------------------------------------
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
// Common Instructions //
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
#ifndef __FLASHMEM_H
#define __FLASHMEM_H
#include "common.h"
// Used Command
#define ID 0x90
#define MANID 0x90
#define JEDECID 0x9F
#define READSTAT1 0x05
#define READSTAT2 0x35
#define WRITESTAT 0x01
#define WRITEDISABLE 0x04
#define WRITEENABLE 0x06
#define READDATA 0x03
#define FASTREAD 0x0B
#define PAGEPROG 0x02
#define SECTORERASE 0x20
#define BLOCK32ERASE 0x52
#define BLOCK64ERASE 0xD8
#define CHIPERASE 0xC7
#define UNIQUE_ID 0x4B
// Not used or not support command
#define RELEASE 0xAB
#define POWERDOWN 0xB9
#define SUSPEND 0x75
#define RESUME 0x7A
// Flash busy timeout: 20ms is the strict minimum when writing 256kb
#define BUSY_TIMEOUT 200000L
#define WINBOND_MANID 0xEF
#define WINBOND_DEVID 0x11
#define PAGESIZE 0x100
#define WINBOND_WRITE_DELAY 0x02
#define SPI_CLK 48000000
#define BUSY 0x01
#define WRTEN 0x02
#define SUS 0x40
#define DUMMYBYTE 0xEE
#define NULLBYTE 0x00
#define NULLINT 0x0000
#define NO_CONTINUE 0x00
#define PASS 0x01
#define FAIL 0x00
#define maxAddress capacity
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
// List of Error codes //
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
#define SUCCESS 0x00
#define CALLBEGIN 0x01
#define UNKNOWNCHIP 0x02
#define UNKNOWNCAP 0x03
#define CHIPBUSY 0x04
#define OUTOFBOUNDS 0x05
#define CANTENWRITE 0x06
#define PREVWRITTEN 0x07
#define LOWRAM 0x08
#define NOSUSPEND 0x09
#define UNKNOWNERROR 0xFF
// List of blocks
#define MAX_BLOCKS 4
#define MAX_SECTORS 16
//#define FLASH_BAUD 24000000
#define FLASH_MINFAST 24000000 //33000000
#define FLASH_BAUD MCK/2
#define FLASH_FASTBAUD MCK
#define FLASH_MINBAUD FLASH_FASTBAUD
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
bool FlashInit(void);
void Flash_UniqueID(uint8_t *uid);
void FlashStop(void);
void FlashSetup(uint32_t baudrate);
bool Flash_CheckBusy(uint32_t timeout);
uint8_t Flash_ReadStat1(void);
uint16_t FlashSendByte(uint32_t data);
uint16_t FlashSendLastByte(uint32_t data);
#ifndef AS_BOOTROM
// Bootrom does not require these functions.
// Wrap in #ifndef to avoid accidental bloat of bootrom
// Bootrom needs only enough to get uniqueID from flash.
// It calls three functions. Full call trees listed:
//
// FlashInit()
// |
// \____ FlashSetup()
// | \____ leaf
// |
// \____ StartTicks()
// | \____ leaf
// |
// \____ Flash_CheckBusy() [*]
// | \____ WaitUS()
// | | \____ WaitTicks()
// | | \____ leaf
// | |
// | \____ StartCountUS()
// | | \____ leaf
// | |
// | \____ GetCountUS()
// | | \____ leaf
// | |
// | \____ Flash_ReadStat1()
// | \____ FlashSendByte()
// | | \____ leaf
// | |
// | \____ FlashSendLastByte()
// | \____ FlashSendByte()
// | \____ leaf
// |
// \____ StopTicks()
// \____ leaf
//
// Flash_UniqueID()
// \____ FlashCheckBusy() (see FlashInit)
// \____ FlashSendByteByte() (see FlashInit)
// \____ FlashSendByteLastByte() (see FlashInit)
//
//
// FlashStop() [*]
void FlashmemSetSpiBaudrate(uint32_t baudrate);
bool Flash_WaitIdle(void);
void Flash_TransferAdresse(uint32_t address);
void Flash_WriteEnable(void);
bool Flash_WipeMemoryPage(uint8_t page);
bool Flash_WipeMemory(void);
bool Flash_Erase4k(uint8_t block, uint8_t sector);
//bool Flash_Erase32k(uint32_t address);
bool Flash_Erase64k(uint8_t block);
uint8_t Flash_ReadID(void);
uint16_t Flash_ReadData(uint32_t address, uint8_t *out, uint16_t len);
uint16_t Flash_ReadDataCont(uint32_t address, uint8_t *out, uint16_t len);
uint16_t Flash_Write(uint32_t address, uint8_t *in, uint16_t len);
uint16_t Flash_WriteData(uint32_t address, uint8_t *in, uint16_t len);
uint16_t Flash_WriteDataCont(uint32_t address, uint8_t *in, uint16_t len);
void Flashmem_print_status(void);
void Flashmem_print_info(void);
#endif // #ifndef AS_BOOTROM
#endif