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fespi: Reset may have occurred. Need to set TXWM again. There are probably more places that need this added.

race
Megan Wachs 2017-04-04 19:04:53 -07:00 committed by Palmer Dabbelt
parent b04c6cb3ed
commit 75e7c79b2a
1 changed files with 24 additions and 12 deletions
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32
src/flash/nor/fespi.c
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@ -314,21 +314,27 @@ static int fespi_erase_sector(struct flash_bank *bank, int sector)
uint32_t ctrl_base = fespi_info->ctrl_base;
int retval;
fespi_tx(bank, SPIFLASH_WRITE_ENABLE);
fespi_txwm_wait(bank);
retval = fespi_tx(bank, SPIFLASH_WRITE_ENABLE);
if (retval != ERROR_OK) {return retval;}
retval = fespi_txwm_wait(bank);
if (retval != ERROR_OK) {return retval;}
FESPI_WRITE_REG(FESPI_REG_CSMODE, FESPI_CSMODE_HOLD);
fespi_tx(bank, fespi_info->dev->erase_cmd);
retval = fespi_tx(bank, fespi_info->dev->erase_cmd);
if (retval != ERROR_OK) {return retval;}
sector = bank->sectors[sector].offset;
fespi_tx(bank, sector >> 16);
fespi_tx(bank, sector >> 8);
fespi_tx(bank, sector);
fespi_txwm_wait(bank);
retval = fespi_tx(bank, sector >> 16);
if (retval != ERROR_OK) {return retval;}
retval = fespi_tx(bank, sector >> 8);
if (retval != ERROR_OK) {return retval;}
retval = fespi_tx(bank, sector);
if (retval != ERROR_OK) {return retval;}
retval = fespi_txwm_wait(bank);
if (retval != ERROR_OK) {return retval;}
FESPI_WRITE_REG(FESPI_REG_CSMODE, FESPI_CSMODE_AUTO);
retval = fespi_wip(bank, FESPI_MAX_TIMEOUT);
if (retval != ERROR_OK)
return retval;
if (retval != ERROR_OK){return retval;}
return ERROR_OK;
}
@ -365,7 +371,13 @@ static int fespi_erase(struct flash_bank *bank, int first, int last)
}
}
fespi_txwm_wait(bank);
FESPI_WRITE_REG(FESPI_REG_TXCTRL, FESPI_TXWM(1));
retval = fespi_txwm_wait(bank);
if (retval != ERROR_OK){
LOG_ERROR("WM Didn't go high before attempting.");
return retval;
}
/* Disable Hardware accesses*/
FESPI_DISABLE_HW_MODE();