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openFPGALoader
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Support for the Microchip SST25VF040B flash. 

Programming is slow, only one byte at a time :-(
This commit is contained in:
Stephan Ruloff 2022-03-25 21:15:09 +01:00
parent f8da6717ce
commit 8c4b1b3afd
2 changed files with 20 additions and 0 deletions
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7
src/spiFlash.cpp
View File

@ -311,6 +311,10 @@ int SPIFlash::erase_and_prog(int base_addr, uint8_t *data, int len)
if ((status & 0x1c) != 0)
must_relock = true;
}
if ((_jedec_id >> 8) == 0xbf258d) {
if ((status & 0x1c) != 0)
must_relock = true;
}
/* if it's needs to unlock */
if (must_relock) {
@ -334,6 +338,9 @@ int SPIFlash::erase_and_prog(int base_addr, uint8_t *data, int len)
int size = 0;
for (int addr = 0; addr < len; addr += size, ptr+=size) {
size = (addr + 256 > len)?(len-addr) : 256;
if ((_jedec_id >> 8) == 0xbf258d) {
size = 1;
}
if (write_page(base_addr + addr, ptr, size) == -1)
return -1;
progress.display(addr);

13
src/spiFlashdb.hpp
View File

@ -125,6 +125,19 @@ static std::map <uint32_t, flash_t> flash_list = {
.bp_len = 4,
.bp_offset = {(1 << 2), (1 << 3), (1 << 4), (1 << 6)}}
},
{0xbf258d, {
.manufacturer = "microchip",
.model = "SST25VF040B",
.nr_sector = 8,
.sector_erase = true,
.subsector_erase = true,
.has_extended = false,
.tb_otp = true,
.tb_offset = (1 << 1),
.tb_register = FUNCR,
.bp_len = 4,
.bp_offset = {(1 << 2), (1 << 3), (1 << 4), (1 << 5)}}
},
{0xBF2642, {
.manufacturer = "microchip",
.model = "SST26VF032B",