[flashrom] flashrom OPCODES for SPI

[Николай Николаев]

The SST25VF040B was added before the new naming scheme was implemented. We
> did not want to break any existing software which depends on certain
> strings.
>
Ok i support your fears. it is old chip and has a small capacity.
  {
.vendor = "SST",
.name = "SST25VF032B",
.bustype = BUS_SPI,
.manufacture_id = SST_ID,
.model_id = SST_SST25VF032B,
.total_size = 4096,
.page_size = 256,
.feature_bits = FEATURE_WRSR_EWSR,
.tested = TEST_OK_PREW,
.probe = probe_spi_rdid,
.probe_timing = TIMING_ZERO,
.block_erasers =
{
{
.eraseblocks = { {4 * 1024, 1024} },
.block_erase = spi_block_erase_20,
}, {
.eraseblocks = { {32 * 1024, 128} },
.block_erase = spi_block_erase_52,
}, {
.eraseblocks = { {64 * 1024, 64} },
.block_erase = spi_block_erase_d8,
}, {
.eraseblocks = { {4 * 1024 * 1024, 1} },
.block_erase = spi_block_erase_60,
}, {
.eraseblocks = { {4 * 1024 * 1024, 1} },
.block_erase = spi_block_erase_c7,
},
},
.printlock = spi_prettyprint_status_register_sst25, /* TODO: check */
.unlock = spi_disable_blockprotect,
.write = spi_aai_write,                                                /*
what do i see? - this is a fetch  */
.read = spi_chip_read,
.voltage = {2700, 3600},
},

for example:
if i used chip MX25L3205 and i want to change it on SST25VF032B, that i
can't reprogram chip because this chip didn't have a AAI OPcodes 0xAD (i
can't change opcodes in SPI controller). But i know my controller has a
standard codes for reading and page programming.


Voltage can be important for external programmer usage. It's not much
> effort to add it, anyway.
>

How will you choose voltage for external program if you want to program
MX25L6439E and MX25U6435F? What value we will write to field voltage?


> Some SST25VF040B chips identify using the REMS opcode, others use RDID.
> Complain to the manufacturer :-)
>
Sorry but i can't found REMS code in documentation on this chip. Mayby you
give me link on pdf and i will be study on my free time. 8)

Support for this chip came before the new naming scheme. In the future,
> part names like this will be written as "EN25Q80...P" where the dot '.' is
> a wildcard for each letter which does not affect programming capabilities.
>

Ok how will you mark next chips MX25L6439E and MX25U6435F? That chips has a
identical chip ID = 0x2537. if if will be MX25.64...(F) that i think it's
don't readable.


-- 
With best regards Nikolay Nikolaev
С Уважением Николаев Николай
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