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| author | Sylvain Munaut <tnt@246tNt.com> | 2019-08-05 14:34:49 +0200 |
|---|---|---|
| committer | Sylvain Munaut <tnt@246tNt.com> | 2019-08-05 14:34:49 +0200 |
| commit | a7c42cd29b6bda83b8f08bba755cd5f20a582de7 (patch) | |
| tree | dfde73ef8f771fee16e571c93e344ccc06aab19c /iceprog | |
| parent | 792cef084a751e32f541332feb4905f8e49e9943 (diff) | |
| download | icestorm-a7c42cd29b6bda83b8f08bba755cd5f20a582de7.tar.gz icestorm-a7c42cd29b6bda83b8f08bba755cd5f20a582de7.tar.bz2 icestorm-a7c42cd29b6bda83b8f08bba755cd5f20a582de7.zip | |
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>
Diffstat (limited to 'iceprog')
| -rw-r--r-- | iceprog/iceprog.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/iceprog/iceprog.c b/iceprog/iceprog.c index bae9e71..695e3ed 100644 --- a/iceprog/iceprog.c +++ b/iceprog/iceprog.c @@ -195,12 +195,10 @@ static void flash_read_id() static void flash_reset() { - flash_chip_select(); - mpsse_xfer_spi_bits(0xFF, 8); - flash_chip_deselect(); + uint8_t data[8] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; flash_chip_select(); - mpsse_xfer_spi_bits(0xFF, 2); + mpsse_xfer_spi(data, 8); flash_chip_deselect(); } |