[flashrom] Try to add support for LE25FW106/1Mbit spi flash

[The Raven]

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.
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
spi_block_erase_d8 failed during command execution at address 0x8000
Looking for another erase function.
No usable erase functions left.
FAILED!

Attention: It tells function 0, but this is because i have removed the
other functions for testing. ;-)

BTW: Chips was found an a 2.5" hitachi harddisk. Chip is a "T" model
(MSOP8).