[flashrom] Try to add support for LE25FW106/1Mbit spi flash
Stefan Tauner
stefan.tauner at alumni.tuwien.ac.at
Mon Jun 2 20:11:00 CEST 2014
On Mon, 2 Jun 2014 08:27:51 +0200
The Raven <originalraven at hotmail.com> wrote:
> Hello,
> i am trying to add this chip (ID 0x62 0x15).
> It works so far, but erase function 1 is not working.
> The datasheet tells that it supports 2K small sector, 32K sector and
> chip erase.
> 2K Small Sector and chip erase works. But 32K not. And i don't know why.
> Please have a look:
> .vendor = "Sanyo",
> .name = "LE25FW106",
> .bustype = BUS_SPI,
> .manufacture_id = SANYO_ID,
> .model_id = SANYO_LE25FW106,
> .total_size = 128,
> .page_size = 256,
> .feature_bits = FEATURE_WRSR_WREN,
> .tested = TEST_OK_PREW,
> .probe = probe_spi_res2,
> .probe_timing = TIMING_ZERO,
> .block_erasers = {
> {
> // .eraseblocks = { {2 * 1024, 64} }, //ok
> // .block_erase = spi_block_erase_d7,
> // }, {
> .eraseblocks = { {32 * 1024, 4} }, //not ok
> .block_erase = spi_block_erase_d8,
> // }, {
> // .eraseblocks = { {128 * 1024, 1} }, //ok
> // .block_erase = spi_block_erase_c7,
> }
> },
> .printlock = spi_prettyprint_status_register_plain,
> .unlock = spi_disable_blockprotect,
> .write = spi_chip_write_256,
> .read = spi_chip_read,
> .voltage = {2700, 3600},
>
> I am also not sure if "FEATURE_WRSR_WREN" is correct.
That defines how flashrom should make the status register
write-enabled before issuing a WRSR (write status register) command.
Either with WREN or with EWSR. Answer see section 3. Write Enable in
the datasheet. (it is correct).
> The code is taken from "LE25FW406A" chip and changed to fit the "LE25FW106".
>
> This is the error:
> Found Sanyo flash chip "LE25FW106" (128 kB, SPI).
> Erasing and writing flash chip... Trying erase function 0...
> 0x000000-0x007fff:E, 0x008000-0x00ffff:EError: invalid response 0xAF
> from device
That's a bug in the serprog implementation (again... I think we saw
that already in one of your logs a few weeks ago?). Is it perfectly
reproducible?
Your chip definition looks good. I'd use another .printlock:
spi_prettyprint_status_register_bp1_srwd with a fixme noting that the
ERSER error flag is not implemented (yet) though. I am looking forward
to a complete patch with sign-off this time? :)
--
Kind regards/Mit freundlichen Grüßen, Stefan Tauner
More information about the flashrom
mailing list