98faaceb70
* DI layout is identified by attempting to read OUI from both layouts * MSC address is passed to flashstub in r3 Retested EZR32LG230 (EZR Leopard Gecko M3) Tested EFR32BG13P532F512GM32 (EFR Blue Gecko) Achieves aims of PR #264 (I think) Thanks to @dholth and @ryankurte for inspiration Fixes Issue #226
69 lines
2.4 KiB
C
69 lines
2.4 KiB
C
/*
|
|
* This file is part of the Black Magic Debug project.
|
|
*
|
|
* Copyright (C) 2015 Richard Meadows
|
|
*
|
|
* 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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <stdint.h>
|
|
#include "stub.h"
|
|
|
|
#define EFM32_MSC_WRITECTRL(msc) *((volatile uint32_t *)(msc+0x008))
|
|
#define EFM32_MSC_WRITECMD(msc) *((volatile uint32_t *)(msc+0x00c))
|
|
#define EFM32_MSC_ADDRB(msc) *((volatile uint32_t *)(msc+0x010))
|
|
#define EFM32_MSC_WDATA(msc) *((volatile uint32_t *)(msc+0x018))
|
|
#define EFM32_MSC_STATUS(msc) *((volatile uint32_t *)(msc+0x01c))
|
|
#define EFM32_MSC_LOCK(msc) *((volatile uint32_t *)(msc+(msc == 0x400e0000?0x40:0x3c)))
|
|
#define EFM32_MSC_MASSLOCK(msc) *((volatile uint32_t *)(msc+0x054))
|
|
|
|
#define EFM32_MSC_LOCK_LOCKKEY 0x1b71
|
|
|
|
#define EFM32_MSC_WRITECMD_LADDRIM (1<<0)
|
|
#define EFM32_MSC_WRITECMD_ERASEPAGE (1<<1)
|
|
#define EFM32_MSC_WRITECMD_WRITEEND (1<<2)
|
|
#define EFM32_MSC_WRITECMD_WRITEONCE (1<<3)
|
|
#define EFM32_MSC_WRITECMD_WRITETRIG (1<<4)
|
|
#define EFM32_MSC_WRITECMD_ERASEABORT (1<<5)
|
|
|
|
#define EFM32_MSC_STATUS_BUSY (1<<0)
|
|
#define EFM32_MSC_STATUS_LOCKED (1<<1)
|
|
#define EFM32_MSC_STATUS_INVADDR (1<<2)
|
|
#define EFM32_MSC_STATUS_WDATAREADY (1<<3)
|
|
#define EFM32_MSC_STATUS_WORDTIMEOUT (1<<4)
|
|
|
|
void __attribute__((naked))
|
|
efm32_flash_write_stub(uint32_t *dest, uint32_t *src, uint32_t size, uint32_t msc)
|
|
{
|
|
uint32_t i;
|
|
|
|
EFM32_MSC_LOCK(msc) = EFM32_MSC_LOCK_LOCKKEY;
|
|
EFM32_MSC_WRITECTRL(msc) = 1;
|
|
|
|
for (i = 0; i < size/4; i++) {
|
|
EFM32_MSC_ADDRB(msc) = (uint32_t)&dest[i];
|
|
EFM32_MSC_WRITECMD(msc) = EFM32_MSC_WRITECMD_LADDRIM;
|
|
|
|
/* Wait for WDATAREADY */
|
|
while ((EFM32_MSC_STATUS(msc) & EFM32_MSC_STATUS_WDATAREADY) == 0);
|
|
|
|
EFM32_MSC_WDATA(msc) = src[i];
|
|
EFM32_MSC_WRITECMD(msc) = EFM32_MSC_WRITECMD_WRITEONCE;
|
|
|
|
/* Wait for BUSY */
|
|
while ((EFM32_MSC_STATUS(msc) & EFM32_MSC_STATUS_BUSY));
|
|
}
|
|
|
|
stub_exit(0);
|
|
}
|