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iceprog: Better reset of flash 

If the flash was in a 'weird' mode (like CRM, QPI, ...), sending
a continuous stream of 0xff should take it out of it.

It looks like the previous code was trying to do that, but
was only transferring 8 bits and then 2 bits which is way
too short.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
This commit is contained in:
Sylvain Munaut 2019-08-05 14:34:49 +02:00
parent 792cef084a
commit a7c42cd29b
1 changed files with 2 additions and 4 deletions
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6
iceprog/iceprog.c
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@ -195,12 +195,10 @@ static void flash_read_id()
static void flash_reset() static void flash_reset()
{ {
flash_chip_select(); uint8_t data[8] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
mpsse_xfer_spi_bits(0xFF, 8);
flash_chip_deselect();
flash_chip_select(); flash_chip_select();
mpsse_xfer_spi_bits(0xFF, 2); mpsse_xfer_spi(data, 8);
flash_chip_deselect(); flash_chip_deselect();
} }