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spiFlash: force subsector only for SST26VF032B

This commit is contained in:
Gwenhael Goavec-Merou 2022-02-26 19:10:18 +01:00
parent 02e93ffec6
commit 86fa1e01de
2 changed files with 16 additions and 4 deletions
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16
src/spiFlash.cpp
View File

@ -121,15 +121,26 @@ int SPIFlash::block64_erase(int addr)
int SPIFlash::sectors_erase(int base_addr, int size)
{
// check if chip support sector and subsector erase
bool subsector_rdy = false, sector_rdy = true;
if (_flash_model) {
if (_flash_model->subsector_erase)
subsector_rdy = true;
if (!_flash_model->sector_erase)
sector_rdy = false;
}
int ret = 0;
int start_addr = base_addr;
/* compute end_addr to be multiple of 4Kb */
int end_addr = (base_addr + size + 0xfff) & ~0xfff;
if (!_flash_model->subsector_erase)
if (!subsector_rdy)
end_addr = (base_addr + size + 0xffff) & ~0xffff;
ProgressBar progress("Erasing", end_addr, 50, _verbose < 0);
/* start with block size (64Kb) */
int step = 0x10000;
if (!sector_rdy)
step = 0x1000;
for (int addr = start_addr; addr < end_addr; addr += step) {
if (write_enable() == -1) {
@ -138,7 +149,7 @@ int SPIFlash::sectors_erase(int base_addr, int size)
}
/* if block erase + addr end out of end_addr -> use sector_erase (4Kb) */
if (addr + 0x10000 > end_addr && _flash_model && _flash_model->subsector_erase) {
if (!sector_rdy || (addr + step > end_addr && subsector_rdy)) {
step = 0x1000;
ret = sector_erase(addr);
} else {
@ -359,6 +370,7 @@ bool SPIFlash::verify(const int &base_addr, const uint8_t *data,
return false;
}
for (int ii = 0; ii < rd_burst; ii++) {
if ((uint8_t)verify_data[ii] != data[i+ii]) {
progress.fail();

4
src/spiFlashdb.hpp
View File

@ -129,8 +129,8 @@ static std::map <uint32_t, flash_t> flash_list = {
.manufacturer = "microchip",
.model = "SST26VF032B",
.nr_sector = 64,
.sector_erase = true,
.subsector_erase = false,
.sector_erase = false,
.subsector_erase = true,
.has_extended = false,
.tb_otp = false,
.tb_offset = 0,